Air blowing system

Abstract

This air blowing system (1000) executes air blowing into the space of a balcony (50) formed between an outer wall (20) serving as a boundary between the outside (12) and the inside (14) of the outer wall (20); and an opposing wall (30) separated from the outer wall (20) on the outside (12) of a building (10). A blower (100) sucks air from the inside (14) and conveys the sucked air from an exhaust duct (110) to an exhaust cover (120). An exhaust outlet (122) of the exhaust cover (120) blows out air toward the upper end portion of the opposing wall (30). A first through-hole (130) and a second through-hole (140) supply air from the outside (12) to the inside (14).

Description

ventilation system

[0001] The present disclosure relates to a ventilation system.

[0002] In apartment buildings and the like, a kitchen is located on the balcony side, through living rooms and the like. The kitchen in such apartment buildings is equipped with an exhaust system. The exhaust system draws air through an exhaust inlet and exhausts the air from the balcony to the outside through a duct installed in the ceiling. An outside air intake is also installed at the bottom of the wall between the balcony and the living room. The outside air intake is connected to the kitchen (see, for example, Patent Document 1).

[0003] Japanese Unexamined Patent Publication No. 6-193936

[0004] When outdoor air is present on a balcony, indoor air is exhausted onto the balcony. As a result, outdoor air and indoor air are mixed on the balcony. In general, indoor air is more suitable for human life than outdoor air in terms of temperature, humidity, etc. Therefore, it is desirable to zone the balcony by utilizing the exhausted indoor air.

[0005] The present disclosure aims to provide a technology for zoning a balcony.

[0006] An air supply system according to one aspect of the present disclosure is an air supply system for a veranda space formed between an exterior wall that forms a boundary between the indoors and outdoors of a building and an opposing wall that is spaced apart from the exterior wall, and includes a blower disposed indoors, an exhaust duct extending from the blower to the exterior wall, an exhaust cover disposed on the outdoor face of the exterior wall and connected to the exhaust duct from the outdoor face side of the exterior wall, and a through-hole that penetrates between the indoor and outdoor faces of the exterior wall. The blower draws in indoor air and transports the drawn-in air from the exhaust duct to the exhaust cover, an exhaust outlet of the exhaust cover blows air toward the upper end portion of the opposing wall, and the through-hole supplies outdoor air indoors.

[0007] Any combination of the above components, and conversion of the present disclosure into a method, device, system, recording medium, computer program, etc., are also valid aspects of the present disclosure.

[0008] According to the present disclosure, balconies can be zoned.

[0009] FIG. 1A is a diagram showing the configuration of an air blowing system according to this embodiment. FIG. 1B is a diagram showing the configuration of an air blowing system according to this embodiment. FIG. 1C is a diagram showing the configuration of an air blowing system according to this embodiment. FIG. 1D is a diagram showing the configuration of an air blowing system according to this embodiment. FIG. 1E is a diagram showing the configuration of an air blowing system according to this embodiment. FIG. 2 is a diagram showing the flow of air by the air blowing system according to this embodiment. FIG. 3A is a diagram showing the configuration of an air blowing system according to Modification 1. FIG. 3B is a diagram showing the configuration of an air blowing system according to Modification 1. FIG. 4A is a diagram showing the configuration of an air blowing system according to Modification 2. FIG. 4B is a diagram showing the configuration of an air blowing system according to Modification 2. FIG. 5A is a diagram showing the configuration of an air blowing system according to Modification 3. FIG. 5B is a diagram showing the configuration of an air blowing system according to Modification 3. FIG. 5C is a diagram showing the configuration of an air blowing system according to Modification 3. FIG. 5D is a diagram showing the configuration of an air blowing system according to Modification 3.

[0010] The examples described below each illustrate a preferred specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, component placement and connection configurations, steps (processes), and step order shown in the following examples are merely examples and are not intended to limit the present disclosure. Therefore, among the components in the following examples, components that are not described in the independent claims that represent the highest concept of the present disclosure are described as optional components. Furthermore, in each figure, substantially identical components are designated by the same reference numerals, and redundant descriptions are omitted or simplified.

[0011] 1A to 1E show the configuration of the air blowing system 1000. Fig. 1A shows a front view of the building 10 as seen from the outdoor 12 side, and Fig. 1B shows a perspective view of the building 10 as seen from the outdoor 12 side. Fig. 1C shows a perspective cross-sectional view taken along line B-B of Fig. 1A, Fig. 1D shows a cross-sectional view taken along line B-B of Fig. 1A, and Fig. 1E shows an enlarged view of part A of Fig. 1D.

[0012] The building 10 is, for example, an apartment building or other multi-family dwelling, but may also be a detached house or an office. An exterior wall 20 of the building 10 forms a boundary between an outdoor area 12 and an indoor area 14. The outside of the exterior wall 20 is the outdoor area 12. The inside of the exterior wall 20 is the indoor area 14. The surface of the exterior wall 20 facing the outdoor area 12 is the outdoor surface 22. The surface of the exterior wall 20 facing the indoor area 14 is the indoor surface 24.

[0013] An opposing wall 30 is erected at a position spaced apart from the exterior wall 20 on the exterior 12 of the building 10. The opposing wall 30 is, for example, a handrail. The underside of the opposing wall 30 is connected to the underside of the building 10 by a connecting floor 40. A space for a veranda 50 is formed between the exterior wall 20, the opposing wall 30, and the connecting floor 40. The veranda 50 is also separated from the adjacent dwelling unit by a boundary wall 42. In this embodiment, the opposing wall 30 faces the exterior wall 20 and is lower in height than the exterior wall 20.

[0014] The air blowing system 1000 blows air into the space of the balcony 50. The air blowing system 1000 includes a blower 100, an exhaust duct 110, an exhaust cover 120, a first through hole 130, and a second through hole 140.

[0015] The blower 100 is disposed in the ceiling of the room 14. An indoor air inlet 102 is provided on the underside of the blower 100. When the blower 100 operates, air from the room 14 is drawn in through the indoor air inlet 102.

[0016] An exhaust duct 110 extending from the blower 100 toward the exterior wall 20 is disposed in the ceiling portion of the indoor space 14. The exhaust duct 110 is a pipe capable of transporting air. The exhaust duct 110 is connected to an exhaust cover 120 from the indoor surface 24 side of the exterior wall 20. The exhaust cover 120 has a hollow box shape and is disposed on the outdoor surface 22 of the exterior wall 20. The exhaust cover 120 is connected to the exhaust duct 110 from the outdoor surface 22 side of the exterior wall 20. An exhaust outlet 122 is provided in the lower portion of the exhaust cover 120. The exhaust outlet 122 is an opening that communicates with the exhaust duct 110. In this configuration, the blower 100 transports the drawn air from the exhaust duct 110 to the exhaust cover 120. The exhaust cover 120 blows out air from the exhaust outlet 122.

[0017] The first through hole 130 and the second through hole 140 penetrate between the outdoor surface 22 and the indoor surface 24 of the exterior wall 20. The first through hole 130 is positioned above the exhaust air outlet 122. The second through hole 140 is positioned below the first through hole 130, particularly below the exhaust air outlet 122. The opening of the first through hole 130 on the outdoor surface 22 is a first air supply port 132. The opening of the second through hole 140 on the outdoor surface 22 is a second air supply port 142. When air from the indoor space 14 is blown out from the exhaust air outlet 122, the first through hole 130 supplies air from the outdoor space 12 to the indoor space 14 through the first air supply port 132, and the second through hole 140 supplies air from the outdoor space 12 to the indoor space 14 through the second air supply port 142.

[0018] Here, when the first through hole 130 is open, the second through hole 140 is closed. For example, a lid (not shown) is attached to the opening of the second through hole 140 on the indoor surface 24 side. Furthermore, when the first through hole 130 is closed, the second through hole 140 is opened. For example, a lid (not shown) is attached to the opening of the first through hole 130 on the indoor surface 24 side. In other words, air from the outdoor area 12 is supplied to the indoor area 14 through one of the first through hole 130 and the second through hole 140.

[0019] FIG. 2 shows the airflow through the ventilation system 1000. Similar to FIG. 1D, FIG. 2 is a cross-sectional view taken along the line B-B of FIG. 1A. The upper end of the opposing wall 30 is indicated as the "first position (P1)." The exhaust air outlet 122 of the exhaust cover 120 blows air toward the upper end of the opposing wall 30, the "first position (P1)." The air blown out from the exhaust air outlet 122 collides with the inner surface of the opposing wall 30 near the first position (P1) and then descends along the inner surface of the opposing wall 30. The air also moves along the connecting floor 40 toward the outdoor surface 22 and then flows upward along the outdoor surface 22. Therefore, the space of the balcony 50 formed by the opposing wall 30, the connecting floor 40, and the outdoor surface 22 is filled with air blown out from the exhaust air outlet 122. As a result, the space of the balcony 50 is zoned.

[0020] (Modification 1) In the air blowing system 1000 according to Modification 1, it is possible to adjust the volume of air blown out from the exhaust air outlet 122 and the direction of the air blown out from the exhaust air outlet 122. The following mainly describes the differences from the previous examples.

[0021] 3A and 3B show the configuration of a ventilation system 1000. As shown in Fig. 3A, the ventilation system 1000 includes a fan 100, an exhaust cover 120, and an air conditioning device 150. The fan 100 and the exhaust cover 120 are arranged in the same manner as in Figs. 1A to 1E. The air conditioning device 150 is arranged indoors 14 and adjusts the temperature and humidity of the air in the indoors 14.

[0022] The air conditioning device 150 includes an operation unit 152, a control unit 154, a storage unit 156, and a communication unit 158. The operation unit 152 is an interface that can receive, from a user, instructions for cooling operation or heating operation of the air conditioning device 150. The operation unit 152 can also receive instructions for setting the temperature and humidity, but a description of this will be omitted here.

[0023] The control unit 154 controls the operation of the air conditioning device 150. When the control unit 154 receives an instruction for cooling operation from the operation unit 152, it causes the air conditioning device 150 to operate in cooling mode. When the control unit 154 receives an instruction for heating operation from the operation unit 152, it causes the air conditioning device 150 to operate in heating mode.

[0024] The memory unit 156 stores tables to be used by the control unit 154. FIG. 3B shows the data structure of the tables stored in the memory unit 156. "Operation" indicates cooling operation or heating operation of the air conditioning device 150. For heating operation, the "air volume: first air volume" of the blower 100 and the "air direction: first position (P1)" of the exhaust air outlet 122 are associated. For cooling operation, the "air volume: second air volume" of the blower 100 and the "air direction: second position (P2)" of the exhaust air outlet 122 are associated. The second air volume is an air volume greater than the first air volume. Furthermore, the second position (P2) is a position lower than the first position (P1). Return to FIG. 3A.

[0025] The control unit 154 refers to the table based on instructions received from the operation unit 152, and determines the air volume of the blower 100 and the air direction of the exhaust outlet 122. The control unit 154 may determine only either the air volume of the blower 100 or the air direction of the exhaust outlet 122. The control unit 154 causes the communication unit 158 ​​to transmit information about the determined air volume to the blower 100. The control unit 154 also causes the communication unit 158 ​​to transmit information about the determined air direction to the exhaust cover 120. The communication unit 158 ​​is capable of wireless communication.

[0026] Fan 100 has a communication function that enables it to communicate with communication unit 158. Fan 100 receives information on the air volume, that is, information on the first air volume or the second air volume, from communication unit 158. When fan 100 receives information on the first air volume, it delivers air at the first air volume, and when fan 100 receives information on the second air volume, it delivers air at the second air volume.

[0027] The exhaust cover 120 has a communication function that enables it to communicate with the communication unit 158. The exhaust cover 120 receives information about the wind direction, that is, information about the first position (P1) or the second position (P2), from the communication unit 158. When the exhaust cover 120 receives information about the first position (P1), the exhaust outlet 122 blows air toward the first position (P1). When the exhaust cover 120 receives information about the second position (P2), the exhaust outlet 122 blows air toward the second position (P2). For example, the exhaust cover 120 includes movable blades, a motor connected to the movable blades, and a motor control unit connected to the motor. The motor control unit operates the motor to move the movable blades and adjust the angle of the air being blown out.

[0028] In Figure 2, the second position (P2) is shown below the first position (P1). Generally, when the temperature outside 12 is high, the air conditioning device 150 performs cooling operation. At that time, the temperature of the air blown out from the exhaust outlet 122 is lower than the temperature outside 12. In this temperature relationship, the air blown out from the exhaust outlet 122 tends to descend. Therefore, air is blown out toward the "first position (P1)" at the "first airflow rate."

[0029] On the other hand, when the temperature of the outdoor area 12 is low, the air conditioning device 150 performs heating operation. At that time, the temperature of the air blown out from the exhaust air outlet 122 is higher than the temperature of the outdoor area 12. In this temperature relationship, the air blown out from the exhaust air outlet 122 tends to rise. Therefore, in order to make the air blown out from the exhaust air outlet 122 flow downward along the inner surface of the opposing wall 30, then move along the connecting floor 40 toward the outdoor surface 22, and then flow upward along the outdoor surface 22, the air is blown out toward the "second position (P2)" at the "second airflow rate."

[0030] (Variation 2) In the previous embodiments, the first through hole 130 was positioned above the exhaust outlet 122, and the second through hole 140 was positioned below the exhaust outlet 122. However, there are cases where the first through hole 130 or the second through hole 140 cannot be positioned in such a position. In the air blowing system 1000 according to Variation 2, covers are attached to the first through hole 130 and the second through hole 140. The following mainly describes the differences from the previous embodiments.

[0031] 4A and 4B show the configuration of the air supply system 1000. Similar to FIG. 1A, FIG. 4A shows a front view of the building 10 as seen from the outdoor 12 side, and FIG. 4B shows a cross-sectional perspective view taken along the line C-C of FIG. 4A. The first air supply cover 134 is disposed on the outdoor surface 22 of the exterior wall 20 and is connected to the first through-hole 130. The first air supply cover 134 has a first air supply port 132 facing upward. In other words, air from the outdoor 12 is drawn in from the upper side of the first air supply cover 134. The second air supply cover 144 is disposed on the outdoor surface 22 of the exterior wall 20 and is connected to the second through-hole 140. The second air supply cover 144 has a second air supply port 142 facing downward. In other words, air from the outdoor 12 is drawn in from the lower side of the second air supply cover 144.

[0032] (Variation 3) In the air blowing system 1000 according to Example 3, the exhaust cover 120 extends from one end of the balcony 50 (hereinafter referred to as the "first end") to the other end (hereinafter referred to as the "second end"). In other words, the shape of the exhaust cover 120 is different from previous examples. The following description will focus on the differences from previous examples.

[0033] 5A-5D show the configuration of the air blowing system 1000. Similar to FIG. 1A, FIG. 5A shows a front view of the building 10 as viewed from the outdoor 12 side. FIG. 5B shows the interior of the exhaust cover 120 in FIG. 5A. FIG. 5C shows a perspective cross-sectional view taken along the line D-D of FIG. 5A. FIG. 5D shows a cross-sectional view taken along the line D-D of FIG. 5A. The exhaust cover 120 extends along the outdoor surface 22 of the exterior wall 20 from the first end 160 of the balcony 50 to the second end 162. The exhaust air outlet 122 is a slit extending from the first end 160 of the balcony 50 to the second end 162. The slit of the exhaust air outlet 122 is divided into multiple small slits by multiple deflector plates 124. For example, each of the multiple deflector plates 124 is perpendicular to the exterior wall 20. The multiple small slits are aligned horizontally from the first end 160 to the second end 162. Further, a communication hole 136 is provided in the exhaust cover 120 , and the communication hole 136 is connected to the first through-hole 130 .

[0034] According to this embodiment, the exhaust air outlet 122 of the exhaust cover 120 blows air toward the upper end portion of the opposing wall 30, allowing the air to flow along the inner surface of the opposing wall 30, the connecting floor 40, and the outdoor surface 22. Furthermore, because the air flows along the inner surface of the opposing wall 30, the connecting floor 40, and the outdoor surface 22, the balcony 50 can be zoned. Furthermore, because the second through hole 140 is closed when the first through hole 130 is open, the balcony 50 can be zoned while ventilating the indoor space 14. Furthermore, because the second through hole 140 is opened when the first through hole 130 is closed, zoning can be performed while saving energy.

[0035] Furthermore, when the air conditioning device 150 performs heating operation, the volume of air blown out is greater than when the air conditioning device 150 performs cooling operation, thereby suppressing the rising of the air. Furthermore, when the air conditioning device 150 performs cooling operation, the air is blown out more downward than when the air conditioning device 150 performs cooling operation, thereby suppressing the rising of the air. Furthermore, because the first air supply cover 134 having the first air supply port 132 facing upward is connected to the first through hole 130, and the second air supply cover 144 having the second air supply port 142 facing downward is connected to the second through hole 140, the degree of freedom in the positions at which the first through hole 130 and the second through hole 140 are provided can be improved.

[0036] Furthermore, the exhaust air outlet 122 is a slit extending from the first end 160 side to the second end 162 side of the air conditioning device 150. Such a slit blows air from the first end 160 side to the second end 162 side, thereby expanding the zoning area. Furthermore, the exhaust air outlet 122 is a slit extending from the first end 160 side to the second end 162 side of the air conditioning device 150. The slit is divided into multiple small slits by multiple deflector plates 124. Such multiple deflector plates 124 can suppress air diffusion.

[0037] An outline of one aspect of the present disclosure is as follows.

[0038] (Item 1) An air supply system (1000) for a space of a veranda (50) formed between an exterior wall (20) that is a boundary between an outdoor (12) and an indoor (14) of a building (10) and an opposing wall (30) that is spaced apart from the exterior wall (20) in the outdoor (12) of the building (10), the air supply system (1000) comprising: a fan (100) disposed in the indoor (14); an exhaust duct (110) extending from the fan (100) to the exterior wall (20); an exhaust cover (120) disposed on an outdoor surface (22) of the exterior wall (20) and connected to the exhaust duct (110) from the outdoor surface (22) side of the exterior wall (20); and through holes (130, 140) that penetrate between the outdoor surface (22) and the indoor surface (24) of the exterior wall (20), The blower (100) draws in air from the indoor space (14) and transports the drawn-in air from the exhaust duct (110) to the exhaust cover (120), the exhaust outlet (122) of the exhaust cover (120) blows the air toward the upper end portion of the opposing wall (30), and the through holes (130, 140) supply air from the outdoor space (12) to the indoor space (14).

[0039] (Item 2) The through holes (130, 140) include a first through hole (130) and a second through hole (140) disposed below the first through hole (130), and when the first through hole (130) is opened, the second through hole (140) is closed, and when the first through hole (130) is closed, the second through hole (140) is opened. This is the air blowing system (1000) described in item 1.

[0040] (Item 3) The air blowing system (1000) according to Item 1 or 2, wherein the blower (100) transports the air at a first air volume when an air conditioning device (150) arranged in the indoor space (14) performs cooling operation, and the blower (100) transports the air at a second air volume greater than the first air volume when the air conditioning device (150) performs heating operation.

[0041] (Item 4) The ventilation system (1000) according to any one of Items 1 to 3, wherein the exhaust air outlet (122) blows the air toward an upper end portion of the opposing wall (30) when an air conditioning device (150) arranged in the indoor space (14) performs cooling operation, and the exhaust air outlet (122) blows the air toward a position below the upper end portion of the opposing wall (30) when the air conditioning device (150) performs heating operation.

[0042] (Item 5) The ventilation system (1000) described in any one of items 1 to 4 further comprises: a first air intake cover (134) arranged on the outdoor surface (22) of the exterior wall (20) and connected to the first through hole (130); and a second air intake cover (144) arranged on the outdoor surface (22) of the exterior wall (20) and connected to the second through hole (140), wherein the first air intake cover (134) has a first air intake port (132) facing upward, and the second air intake cover (144) has a second air intake port (142) facing downward.

[0043] (Item 6) The air supply system (1000) according to any one of Items 1 to 5, wherein the exhaust cover (120) has a shape extending from a first end (160) side to a second end (162) side of the balcony (50) along the outdoor surface (22) of the exterior wall (20), the exhaust air outlet (122) is a slit extending from the first end (160) side to the second end (162) side of the balcony (50), and the slit of the exhaust air outlet (122) is divided into multiple parts by multiple deflector plates (124).

[0044] The present disclosure has been described above based on examples. These examples are merely illustrative, and it will be understood by those skilled in the art that various modifications are possible in the combination of each component or each treatment process, and that such modifications are also within the scope of the present disclosure.

[0045] REFERENCE SIGNS LIST 10 Building 12 Outdoor 14 Indoor 20 Exterior wall 22 Outdoor surface 24 Indoor surface 30 Opposite wall 40 Connecting floor 42 Boundary wall 50 Balcony 100 Fan 102 Indoor air intake 110 Exhaust duct 120 Exhaust cover 122 Exhaust air outlet 124 Deflector 130 First through hole 132 First air intake 134 First air intake cover 136 Communication hole 140 Second through hole 142 Second air intake 144 Second air intake cover 150 Air conditioning device 152 Operation unit 154 Control unit 156 Memory unit 158 ​​Communication unit 160 First end 162 Second end 1000 Air blowing system

Claims

1. A ventilation system for a balcony space formed between an exterior wall that is the boundary between the outdoors and indoors of a building and an opposing wall spaced apart from the exterior wall on the outdoors of the building, comprising: a blower arranged inside the building; an exhaust duct extending from the blower to the exterior wall; an exhaust cover arranged on the outdoor face of the exterior wall and connected to the exhaust duct from the outdoor face side of the exterior wall; and a through hole penetrating between the outdoor face and the indoor face of the exterior wall, wherein the blower draws in air from inside the building and transports the drawn in air from the exhaust duct to the exhaust cover, an exhaust outlet of the exhaust cover blows out the air toward the upper end portion of the opposing wall, and the through hole supplies the outdoor air into the building.

2. The ventilation system described in claim 1, wherein the through holes include a first through hole and a second through hole located below the first through hole, and when the first through hole is opened, the second through hole is closed, and when the first through hole is closed, the second through hole is opened.

3. The ventilation system of claim 1 or 2, wherein the blower transports the air at a first airflow rate when an air conditioning device arranged indoors performs cooling operation, and the blower transports the air at a second airflow rate greater than the first airflow rate when the air conditioning device performs heating operation.

4. The ventilation system of claim 1 or 2, wherein the exhaust outlet blows the air toward the upper end portion of the opposing wall when an air conditioning unit placed indoors performs cooling operation, and the exhaust outlet blows the air downward below the upper end portion of the opposing wall when the air conditioning unit performs heating operation.

5. The ventilation system described in claim 2, further comprising a first air intake cover arranged on the outdoor surface of the exterior wall and connected to the first through hole, and a second air intake cover arranged on the outdoor surface of the exterior wall and connected to the second through hole, wherein the first air intake cover has a first air intake port facing upward, and the second air intake cover has a second air intake port facing downward.

6. The ventilation system described in claim 1 or 2, wherein the exhaust cover has a shape extending from the first end side to the second end side of the balcony along the outdoor surface of the exterior wall, the exhaust outlet is a slit extending from the first end side to the second end side of the balcony, and the slit of the exhaust outlet is divided into multiple parts by multiple deflector plates.

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