Air blowing system

Abstract

To provide an air blowing system capable of performing air flow zoning circulating air.SOLUTION: An air blowing system 3 is provided with a body 8 and a blower 9. The body 8 includes a housing part 10, a wall part 11 and a deflection plate part 12. The housing part 10 includes a top face 10a, a front face 10b and an under face 10c. The under face 10c has a downward blowout port 13. The wall part 11 is provided between the housing part 10 and the deflection plate part 12. The deflection plate part 12 includes a rear part 12b, and a projecting part 12a projecting frontward from the rear part 12b. The body 8 has a suction port 15. The blower 9 is disposed in the housing part 10 and executes blowing out of air through the downward blowout port 13 and sucking of the air through the suction port 15. The downward blowout port 13 blows out the air so as to descend. The projecting part 12a directs the descending air to a front side. The suction port 15 sucks the air descending or rising toward the front side by the projecting part 12a.SELECTED DRAWING: Figure 3

Description

[Technical Field]

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

[0002] 2. Description of the Related Art Vaporization type aroma devices are known in the art.

[0003] For example, Patent Document 1 discloses a fragrance device that vaporizes a liquid fragrance and releases the fragrance components to the outside. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 32290330 Summary of the Invention [Problem to be solved by the invention]

[0005] Such conventional fragrance devices have the problem that they scent the entire space, and therefore, they end up scenting unnecessary areas.

[0006] Therefore, the present disclosure is inspired by the above-mentioned conventional problems and aims to provide a ventilation system that can circulate airflow in areas where it is needed while not circulating airflow in areas where it is needed. [Means for solving the problem]

[0007] In order to achieve this objective, an air blowing system according to one aspect of the present disclosure comprises a main body and a blower, the main body including a housing portion, a wall portion, and a deflection plate portion, the housing portion including an upper surface, a front surface, and a lower surface, the lower surface having a downward air outlet, the wall portion being provided between the housing portion and the deflection plate portion, the deflection plate portion including a rear portion and a protrusion protruding forward from the rear portion, the main body having an intake port, the blower being provided within the housing portion and blowing air out of the downward air outlet and sucking air in through the intake port, the downward air outlet blowing air downward, the protrusion directing the descending air forward, and the intake port sucking in air that has descended or risen towards the front by the protrusion, thereby achieving the desired objective. [Effects of the Invention]

[0008] According to the present disclosure, airflow zoning can be performed to circulate air. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a top perspective view showing a configuration of a ventilation system according to a first embodiment of the present invention; [Figure 2] FIG. 10 is a front view showing the ventilation system; [Figure 3] A-A cross-sectional perspective view of the ventilation system [Figure 4] A perspective view of the B-B cross section of the ventilation system [Figure 5] A perspective view of the A-A cross section showing the airflow of the ventilation system [Figure 6] A perspective view of the B-B cross section showing the airflow of the ventilation system [Figure 7] A-A cross section showing the airflow of the ventilation system [Figure 8] FIG. 10 is a top perspective view showing the configuration of the air blowing system according to the second embodiment. [Figure 9] FIG. 10 is a front view showing the ventilation system. [Figure 10] A perspective view of the CC cross section of the ventilation system [Figure 11] A perspective view of the CC cross section showing the airflow of the ventilation system [Figure 12] CC cross section showing the airflow of the ventilation system [Figure 13] FIG. 10 is a top perspective view showing the air blowing system of the third embodiment. [Figure 14] FIG. 10 is a bottom perspective view showing the ventilation system. [Figure 15] A central cross-sectional view showing the airflow of the ventilation system [Figure 16] AA cross-sectional perspective view showing the ventilation system of Modification 1. [Figure 17] AA cross-sectional perspective view showing the ventilation system of Modification 2 DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Example 1 As shown in FIGS. 1 and 2, for example, a room 1 used as a men's restroom has an air blowing system 3 attached to a wall surface 2.

[0011] In the room 1, three urinals 4 are arranged in parallel.

[0012] The direction in which the urinals 4 are lined up is the x-direction, the front direction of the urinals 4 is the y-direction, and the height direction of the room 1 is the z-direction. In other words, when the air blowing system 3 is viewed from the front, the right direction is the x-direction, the front direction is the y-direction, and the height direction or upward is the z-direction.

[0013] The lining 5 is installed on the rear surface of the urinal 4 to house the water supply and drainage pipes of the urinal 4. The lining 5 has a front cover 5a and a top cover 5b.

[0014] The front cover 5a is formed in a rectangular shape that is long in the z direction and perpendicular to the floor 6 of the room 1, and one is installed for each urinal 4. In other words, a total of three front covers 5a are installed. Furthermore, one top cover 5b has two square exhaust ports 7 formed on the left and right sides at a height of about 30 cm from the floor 6.

[0015] The exhaust port 7 is for communicating the room 1, the inside of the lining 5, and an exhaust fan (not shown) with each other.

[0016] The exhaust fan is connected to the inside of the lining 5 via a duct (not shown) connected to the upstream side of the exhaust fan, and is connected to the outdoors via a duct (not shown) connected to the downstream side of the exhaust fan.

[0017] The exhaust fan is installed behind the ceiling 25 of Room 1 to exhaust the air in Room 1 to the outside for ventilation of Room 1.

[0018] The top cover 5b is formed in a rectangular shape that is long in the x direction, and is a single lid that covers the three front covers 5a from the +z direction.

[0019] The top cover 5b is disposed at a height of about 125 cm from the floor 6.

[0020] The air blowing system 3 has a main body 8 and an air blower 9 .

[0021] The main body 8 has a housing portion 10, a wall portion 11, and a deflection plate portion 12, and is fixed to the wall surface 2.

[0022] When the floor 6 is used as a reference, the height at which the protruding portion 12a (described later) is installed is defined as a height 18. In this embodiment, taking into consideration the average height of Japanese adult males, the height 18 is set to about 170 cm. It is fixed.

[0023] The position of the user's nose is set as nose position 19.

[0024] When the floor 6 is used as a reference, the height at the nose position 19 is defined as a height 20. In this embodiment, taking into consideration the average height of Japanese adult males, the height 20 is assumed to be approximately 150 cm.

[0025] From the +z direction to the −z direction, the deflection plate portion 12, the nose position 19, and the exhaust port 7 are positioned in this order.

[0026] As shown in FIGS. 3 and 4, the housing 10 is a hollow column having a rectangular shape in a yz cross section, which is longer in the y direction than in the z direction, and is provided continuously in the x direction.

[0027] The housing 10 includes an upper surface 10a, a front surface 10b, and a lower surface 10c.

[0028] The lower surface 10c has a downward air outlet 13 having a rectangular shape that is long in the x direction.

[0029] One downward air outlet 13 is provided for each urinal 4. In other words, a total of three downward air outlets 13 are formed on the underside 10c.

[0030] The wall portion 11 is a hollow pillar or plate that extends in the −z direction from the housing portion 10 and is formed in a rectangular shape that is longer in the z direction than in the y direction in the yz cross section.

[0031] The wall portion 11 includes a front wall portion 11a and a rear wall portion 11b.

[0032] A cavity 14 is defined between the front wall portion 11a and the rear wall portion 11b.

[0033] The deflection plate portion 12 is a pillar or plate that extends in the −z direction from the wall portion 11 and is formed in a rectangular shape that is longer in the y direction than in the z direction in the yz cross section.

[0034] The deflector plate portion 12 includes a protruding portion 12a and a rear portion 12b.

[0035] The protruding portion 12a protrudes from the rear portion 12b in the +y direction.

[0036] The main body 8 has two suction ports 15 .

[0037] The air inlet 15 includes an upper air inlet 15a and a lower air inlet 15b.

[0038] The upper air inlet 15a is provided on the upper surface 10a of the housing 10, near the wall surface 2.

[0039] One upper suction port 15a is formed for each urinal 4. In other words, a total of three upper suction ports 15a are formed in the main body 8.

[0040] However, the upper suction port 15 a is closed by a closing plate 16 .

[0041] The lower suction port 15b is provided in the rear portion 12b of the deflection plate portion 12, near the wall surface 2.

[0042] One lower suction port 15b is formed for each urinal 4. That is, A total of three lower suction ports 15b are formed in the main body 8.

[0043] The lower intake port 15b is for drawing air flowing toward the main body 8 from the −z direction of the main body 8 into the inside of the main body 8.

[0044] The blowers 9 are installed inside the housing 10. The blowers 9 are, for example, cross-flow fans, one for each urinal. In other words, a total of three blowers 9 are installed inside the housing 10.

[0045] The suction surface 9a of the blower 9 is disposed so as to face the rear side of the front surface 10b of the housing part 10. In other words, the suction surface 9a faces the y direction.

[0046] The suction surface 9a communicates with a lower suction port 15b (suction port 15).

[0047] The blowing surface 9b of the blower 9 is disposed so as to face the rear side of the lower surface 10c of the housing part 10. In other words, the blowing surface 9b faces the -z direction.

[0048] The blowing surface 9b communicates with the downward blowing outlet 13.

[0049] Fragrance device 17 is installed inside housing 10, in front of suction surface 9a. That is, fragrance device 17 is installed inside housing 10, at a position in the +y direction from blower 9.

[0050] Next, the operation of the ventilation system 3 will be described.

[0051] 5, when the blower 9 and the aroma device 17 are operated, air in the room 1 is drawn into the inside of the main body 8 through the lower air inlet 15b. This air passes through the cavity 14 and the inside of the housing 10 and is drawn into the air inlet surface 9a of the blower 9 as an air inlet flow 21.

[0052] At this time, fragrance is added to the intake airflow 21 by the aroma device 17. Then, the air represented as the intake airflow 21 is blown out by the blower 9 from the outlet surface 9b and the downward outlet 13 in the −z direction as the outlet airflow 22.

[0053] As shown in Fig. 6, blown airflow 22 flows in the -z direction along front wall 11a, collides with protrusion 12a, and then flows in the +y direction while diffusing along the upper surface of protrusion 12a. At this time, the wind speed of blown airflow 22 decreases significantly due to the diffusing flow. As a result, blown airflow 22 flows at a low wind speed in the +y direction from the front of protrusion 12a over a wide range in the x direction.

[0054] Generally, the first condition for air to be drawn into an air inlet is that the air must be in communication with the inlet. Based on this first condition, in order for a large amount of air to be drawn into the inlet, the second condition is that the air must be close to the inlet, and the third condition is that the air must not be flowing strongly in the opposite direction from the inlet.

[0055] 7, blown airflow 22 communicates with downward air inlet 15b, and therefore satisfies the first condition. Blowing airflow 22 is close to downward air inlet 15b, and therefore satisfies the second condition. Furthermore, blown airflow 22 flows in the opposite direction (+y direction) to downward air inlet 15b, but contains air whose wind speed has significantly decreased, and therefore satisfies the third condition.

[0056] As a result, a part of the low-speed blown airflow 22 flows as a circulating airflow 23 through the lower intake port 1 That is, part of the blown airflow 22 becomes a circulating airflow 23 having a velocity component in the -y direction and is sucked into the lower air inlet 15b.

[0057] Meanwhile, the remaining blown airflow 22 that is not sucked into lower air inlet 15b is affected by circulating airflow 23, and the direction of the airflow is deflected from the +y direction to the -z direction, flowing as a downward airflow 24. In this embodiment, height 18 is set to approximately 170 cm, and height 20 is assumed to be approximately 150 cm, so this downward airflow 24 flows down around nose position 19 of the user.

[0058] Thereafter, part of the downward air current 24 passes through the exhaust port 7 downstream and the inside of the lining 5, is sucked in by the exhaust fan, and is then exhausted outdoors.

[0059] In other words, part of the fragrance-added blown airflow 22 circulates around the deflector plate 12 as a circulating airflow 23, and the remainder flows around the body (nose) of the user of the urinal 4 as a descending airflow 24, and is then exhausted outdoors.

[0060] As a result, diffusion of the scented airflow 22 throughout the room 1 is suppressed, and while the amount of fragrance consumed by the fragrance device 17 is suppressed, only the area around the body (nose) of the user of the urinal 4 is zoned by the scented air. Therefore, the user can only feel the scent locally when using the urinal 4 in the room 1.

[0061] Furthermore, as a secondary effect, the downward air current 24 can be expected to suppress the rising of bad odors caused by urine or the like on the floor 6.

[0062] Furthermore, the room 1 in the above description indicates an indoor space separated from the outdoors. The room 1 is primarily assumed to be a toilet space, but it is not limited to this and may be an ordinary room other than a toilet. The size of the room is also not important. In fact, the larger the room 1, the stronger the zoning effect of this embodiment.

[0063] Furthermore, lower suction port 15b is not limited to being provided in the lower part of main body 8, but may be provided in the upper part of main body 8. A specific configuration will be shown in Modification 1, which will be described later.

[0064] Unlike this embodiment, the air blowing system 3 may be installed outdoors and may not be attached to the wall 2 of the room 1. However, by attaching the main body 8 to an outdoor or indoor wall 2, the wall 2 has the effect of blocking air other than the air forming the blown airflow 22 from being drawn into the lower air inlet 15b. This increases the amount of circulating airflow 23, improving zoning performance. However, Example 3, which will be described later, shows a configuration that can be expected to achieve the same effect whether the main body 8 is installed outdoors or not attached to the wall 2.

[0065] In addition, in this embodiment, a cross-flow fan was selected in consideration of achieving both a thin housing 10 and good air blowing performance, but the type of fan is not limited as long as it can suck in and blow out air.

[0066] Furthermore, although the protruding portion 12a is solid and the lower suction port 15b is provided in the rear portion 12b, instead, the lower suction port 15b may be provided in the hollow protruding portion 12a.

[0067] In addition, in this embodiment, in order to efficiently add the fragrance from the fragrance device 17 to the intake airflow 21, the intake surface 9a of the blower 9 is positioned facing the back side of the front surface 10b of the housing part 10, and the fragrance device 17 is installed in front of the intake surface 9a of the blower 9, but there is no particular limitation.

[0068] For example, the intake surface 9a of the blower 9 may be arranged to face the wall surface 2, and the fragrance device 17 may be installed on the deflection plate portion 12 to add fragrance to the blown airflow 22. Alternatively, the fragrance device 17 may be installed between the top cover 5b and the deflection plate portion 12 to add fragrance to the circulating airflow 23. In either case, the fragrance device 17 will be installed within the zoning area, and the common point here is essential for ensuring zoning performance. Example 2 In this embodiment, the same components as those in the other embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0069] As shown in FIG. 8, the front cover 5a is not provided with an exhaust port 7.

[0070] Instead, one exhaust outlet 7 is provided in the ceiling 25 of the room 1.

[0071] An exhaust fan (not shown) communicates with the exhaust port 7 via a duct connected to the exhaust fan.

[0072] The top cover 5b is not provided.

[0073] Instead, the deflection plate unit 12 is a single lid that covers the three front covers 5a from the +z direction.

[0074] As shown in FIG. 9, in this embodiment, the height 18 at which the protruding portion 12a is installed is set to about 125 cm.

[0075] That is, the positional relationship from the −z direction to the +z direction is as follows: deflection plate portion 12, nose position 19, and exhaust port 7.

[0076] As shown in FIG. 10, the upper suction port 15a is not closed by the closing plate 16.

[0077] The upper intake port 15a is for drawing air flowing toward the main body 8 from the +z direction of the main body 8 into the inside of the main body 8.

[0078] The upper suction port 15a and the suction surface 9a of the blower 9 are in communication with each other.

[0079] The lower suction port 15b is closed by a closing plate 16.

[0080] Next, the operation of the ventilation system 3 will be described.

[0081] 11, when the blower 9 and the aroma device 17 are operated, air in the room 1 is drawn into the inside of the main body 8 through the upper air inlet 15a. This air passes through the inside of the housing 10 and is drawn into the air inlet surface 9a of the blower 9 as an air inlet current 21.

[0082] At this time, fragrance is added to the intake airflow 21 by the aroma device 17. Then, the air represented as the intake airflow 21 is blown out by the blower 9 from the outlet surface 9b of the blower 9 and the downward outlet 13 in the -z direction as the outlet airflow 22.

[0083] The blown airflow 22 flows in the -z direction along the front wall 11a, collides with the protruding portion 12a, and then flows in the +y direction while diffusing along the upper surface of the protruding portion 12a. At this time, the wind speed of the blown airflow 22 decreases significantly due to the diffusing flow. As a result, the blown airflow 22 flows in the +y direction at a low wind speed from the front of the protruding portion 12a over a wide range in the x direction. It flows in.

[0084] 12, outlet airflow 22 communicates with upper air inlet 15a, and therefore satisfies the first condition. Outlet airflow 22 is close to upper air inlet 15a, and therefore satisfies the second condition. Furthermore, although outlet airflow 22 flows in the opposite direction (+y direction) from upper air inlet 15a, it contains air whose wind speed has significantly decreased, and therefore satisfies the third condition.

[0085] As a result, part of blown airflow 22, which has a low wind speed, is drawn into upper air inlet 15a as circulating airflow 23. That is, part of blown airflow 22 is drawn into upper air inlet 15a as circulating airflow 23 having a velocity component in the −y direction.

[0086] On the other hand, the remaining blown airflow 22 that is not sucked into the upper air inlet 15a is influenced by the circulating airflow 23, and the direction of the airflow is deflected from the +y direction to the +z direction, and flows as an ascending airflow 26.

[0087] In this embodiment, the height 18 is set to about 125 cm, and the height 20 is assumed to be about 150 cm, so that the rising air current 26 blows up and flows around the nose position 19 of the user.

[0088] Thereafter, part of the rising air current 26 passes through the exhaust port 7 downstream, is sucked in by the exhaust fan, and is then exhausted outdoors.

[0089] In other words, part of the blown airflow 22 circulates around the deflector plate 12 as a circulating airflow 23, and the remainder flows around the head of the user of the urinal 4 as an ascending airflow 26, and is then exhausted outdoors.

[0090] As a result, diffusion of the scented airflow 22 throughout the room 1 is suppressed, and while the amount of fragrance consumed by the fragrance device 17 is suppressed, only the area around the head (nose) of the user of the urinal 4 is zoned by the scented air. Therefore, the user can feel the scent locally only when using the urinal 4 within the room 1.

[0091] Furthermore, upper air inlet 15a does not necessarily have to be provided at the top of main body 8, but may be provided at the bottom of main body 8. Example 3 In this embodiment, the same components as those in the other embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0092] As shown in FIGS. 13 and 14, the ventilation system 3 is installed on the ground 27 outdoors.

[0093] The air blowing system 3 is installed on the ground 27 between two benches 29 (a left bench 29a and a right bench 29b) arranged back to back, supported by two support pillars 28 at both ends.

[0094] The support pole 28 is hollow and stands vertically relative to the ground 27 .

[0095] For the sake of convenience, the longitudinal direction of the bench 29 is defined as the x-direction, the lateral direction of the bench 29 as the y-direction, and the standing direction of the support 28 as the z-direction.

[0096] The ventilation system 3 is not attached to a wall.

[0097] The ventilation system 3 does not have an exhaust port.

[0098] The wall portion 11 is a part of the support pillar 28. An air passage 41 is provided inside the wall portion 11.

[0099] Since the deflection plate portion 12 is symmetrical in the front and rear with respect to the front and rear, either the protruding portion 12a or the rear portion 12b of the deflection plate portion 12 may be considered as the protruding portion 12a or the rear portion 12b.

[0100] The main body 8 includes a housing portion 10, a wall portion 11, a deflection plate portion 12, a hanging portion 30, and a support 28.

[0101] The housing part 10 runs in the x direction and is connected to two support posts 28 .

[0102] The hanging portion 30 is connected to the lower portion of the deflection plate portion 12 .

[0103] The protrusion 12 a runs in the x direction and is connected to two support posts 28 .

[0104] The hanging part 30 is a hollow pillar hanging down from the deflection plate part 12 in the −z direction.

[0105] Hanging member 30 is a hollow column or plate having a rectangular shape in a yz cross section, the z direction being longer than the y direction.

[0106] The hanging member 30 runs in the x-direction and is connected to two supports 28 .

[0107] A lower surface 30a of hanging part 30 faces the ground surface 27. A lower suction port 15b is formed in lower surface 30a.

[0108] Lower air inlet 15b and air inlet surface 9a of blower 9 are in communication with each other via the inside of hanging part 30, air passage 41, and the inside of housing part .

[0109] The protrusion 12a is located at a height of about 110 cm from the ground 27.

[0110] The lower suction port 15b is located at a height of about 85 cm from the ground 27.

[0111] The height 20 at the nose position 19 of a person sitting on a sofa 29 is assumed to be 100 cm (the average statistical value for Japanese adult men).

[0112] That is, the positional relationship from the +z direction is in the order of protrusion 12a, nose position 19, and lower air inlet 15b.

[0113] Next, the operation of the ventilation system 3 will be described.

[0114] 15, when blower 9 and aroma device (not shown) are operated, outdoor air is drawn into main body 8 through lower air inlet 15b. The air then travels through the interior of hanging part 30, the interior (air passage 41) of wall part 11 (part of support 28), and the interior of housing part 10, and is drawn into suction surface 9a of blower 9 as suction airflow 21.

[0115] At this time, a fragrance is added by a fragrance device to the intake airflow 21. Then, the intake air is blown by the blower 9 from the blowing surface 9b of the blower 9 and the downward blowing port 13 in the -z direction. The scented airflow 22 is blown out in the direction of the air.

[0116] After colliding with deflection plate section 12, blown-out airflow 22 flows along the upper surface of deflection plate section 12 while diffusing in both the +y and -y directions. At this time, the wind speed of blown-out airflow 22 decreases significantly due to the diffusing flow. As a result, blown-out airflow 22 flows at a low wind speed in the +y and -y directions over a wide range in the x direction.

[0117] 15, blown airflow 22 communicates with downward air inlet 15b, and therefore satisfies the first condition. Since blown airflow 22 is close to downward air inlet 15b, it satisfies the second condition. Furthermore, although blown airflow 22 flows in the opposite direction to downward air inlet 15b (+y direction and −y direction), it contains air whose wind speed has significantly decreased, and therefore it satisfies the third condition.

[0118] As a result, part of blown airflow 22, which has a low wind speed, is drawn into lower air inlet 15b as circulating airflow 23. That is, blown airflow 22 in the +y direction from the front of protrusion 12a is drawn into lower air inlet 15b as circulating airflow 23 having a velocity component in the -y direction. Blown airflow 22 in the -y direction from the front of protrusion 12a is drawn into lower air inlet 15b as circulating airflow 23 having a velocity component in the +y direction.

[0119] In this embodiment, the height 18 is set to approximately 110 cm, and the height 20 at the nose position 19 of a person sitting on the bench 29 is assumed to be approximately 100 cm. Therefore, this circulating airflow 23 flows around the nose of the user.

[0120] That is, the blown airflow 22 circulates around the deflection plate portion 12 as a circulating airflow 23 .

[0121] As a result, diffusion of scented airflow 22 outdoors is suppressed, and while the amount of fragrance consumed by the fragrance device is suppressed, only the area around the body (nose) of the user seated on bench 29 is zoned by scented air. Therefore, the user can feel the scent locally only when seated on bench 29 outdoors. (Variation 1) As shown in FIG. 16, a modification of the first embodiment is shown in which a lower suction port 15b is provided in the upper part of the main body 8.

[0122] The following describes Modification 1. In the modification, the same components as those in the respective embodiments are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0123] The rear wall, rear portion and cavity are omitted.

[0124] The lower air inlet 15b is formed in the housing 10 on the rear side of the fans 9. Specifically, the lower air inlet 15b is provided between two fans 9 adjacent to each other.

[0125] That is, the lower suction port 15b is not provided at the bottom of the main body 8, but at the top of the main body 8.

[0126] The wall portion 11 of the main body 8 is installed with a certain gap 51 provided between it and the wall surface 2 .

[0127] The ventilation slit 31 is formed by a gap 51 between the wall portion 11 and the wall surface 2.

[0128] Next, the intake airflow 21 of the ventilation system 3 will be described.

[0129] When fan 9 and aroma device 17 are operating, air in room 1 is drawn through ventilation slits 31 into gap 51 between wall 11 and wall surface 2. This air flows around gap 52 between fan 9 and wall surface 2, passes through lower air inlet 15b and the inside of housing 10, and is drawn into air inlet surface 9a of fan 9 as air inlet current 21.

[0130] This eliminates the need to provide the rear wall portion 11b compared to the first embodiment, thereby reducing the material costs of the air blowing system 3. Also, most of the rear portion 12b can be cut off. (Variation 2) 17 shows a modification of the first embodiment in a state where the closure plate 16 is removed and the upper suction port 15a is open. The closure plate 16 is detachable from the upper suction port 15a and / or the lower suction port 15b.

[0131] The following describes Modification 2. In Modification 2, the same components as those in the respective embodiments are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0132] The upper intake port 15a is for drawing air flowing toward the main body 8 from the +z direction of the main body 8 into the inside of the main body 8.

[0133] Just as the suction surface 9a and the lower suction port 15b are in communication with each other, the suction surface 9a and the upper suction port 15a are also in communication with each other.

[0134] Next, the operation of the ventilation system 3 will be described.

[0135] As shown in FIG. 17, when the blower 9 and the aroma device 17 are operated, air in the room 1 is drawn into the main body 8 through both the upper air inlet 15a and the lower air inlet 15b.

[0136] The drawn air is then blown out by the blower 9 from the downward outlet 13 in the −z direction as an airflow 22 having a scent.

[0137] Unlike the first embodiment, the amount of intake airflow 21 sucked in from the lower air inlet 15b is smaller than the amount of blown airflow 22.

[0138] The amount of part of the blown airflow 22 that is sucked into the lower air inlet 15b as the circulating airflow 23 also decreases.

[0139] As a result, compared to Example 1, the direction of the blown airflow 22 is less likely to be deflected from the +y direction to the -z direction due to the influence of the circulating airflow 23, making it less likely that the blown airflow 22 will change into a descending airflow 24, and the zoning area will become larger.

[0140] In other words, the blocking plate 16 makes it possible to adjust the size of the zoning area by adjusting the balance between the amount of intake airflow 21 passing through the upper intake port 15a and the amount of intake airflow 21 passing through the lower intake port 15b.

[0141] In addition, in this modified example, the opening area of ​​the upper suction port 15a and the opening area of ​​the lower suction port 15b are set to be the same, but if more detailed adjustment of the size of the zoning area is required, a larger or smaller relationship may be set between the opening area of ​​the upper suction port 15a and the opening area of ​​the lower suction port 15b.

[0142] For example, if the opening area of ​​upper air inlet 15a is smaller than that of lower air inlet 15b, the change in size of the zoning area when blocking plate 16 is removed from upper air inlet 15a is smaller than when the opening areas of upper air inlet 15a and lower air inlet 15b are the same. The airway pressure loss of intake airflow 21 passing through upper air inlet 15a is greater than the airway pressure loss of intake airflow 21 passing through lower air inlet 15b. Therefore, the amount of intake airflow 21 passing through upper air inlet 15a is smaller than the amount of intake airflow 21 passing through lower air inlet 15b. As a result, removing blocking plate 16 from upper air inlet 15a is unlikely to result in an increase in the zoning area.

[0143] On the other hand, when the opening area of ​​upper air inlet 15a is made larger than the opening area of ​​lower air inlet 15b, the change in size of the zoning area when the blocking plate 16 is removed from upper air inlet 15a is greater than when the opening areas of upper air inlet 15a and lower air inlet 15b are the same. The airway pressure loss of intake airflow 21 passing through upper air inlet 15a is smaller than the airway pressure loss of intake airflow 21 passing through lower air inlet 15b. Therefore, the amount of intake airflow 21 passing through upper air inlet 15a is larger than the amount of intake airflow 21 passing through lower air inlet 15b. As a result, removing the blocking plate 16 from upper air inlet 15a is likely to cause a change that increases the size of the zoning area.

[0144] Below, additional information will be provided regarding each example.

[0145] Although an example in which the closure plate 16 is provided at the upper suction port 15a or the lower suction port 15b has been disclosed, a configuration in which the upper suction port 15a or the lower suction port 15b is not provided is also possible. In this case, even if the closure plate 16 is not provided, there is no opening corresponding to the upper suction port 15a or the lower suction port 15b, and therefore the same operational effects as those already described can be obtained.

[0146] Furthermore, the blocking plate 16 does not have to completely block the upper suction port 15a or the lower suction port 15b, but may block only a portion of each.

[0147] In the example where the aroma device 17 is used, the consumption of air-added components such as fragrances is reduced, and therefore the air blowing system 3 can be provided as an airflow zoning system or the like which has low running costs.

[0148] The fragrance device 17 and the like are not essential because the effects of the present disclosure can be obtained even without them.

[0149] Instead of the fragrance device 17, a different functional unit such as a filter, an air cleaner, or an air conditioner may be used.

[0150] The functional unit is configured to impart an additional element to the airflow, the additional element including at least one of a fragrance, air purification, and temperature change.

[0151] Although three fans 9 are shown as an example, one or more fans may be used.

[0152] The upper air inlet 15a may be provided on the front surface 10b or the bottom surface 10c of the housing part 10.

[0153] A gap may be provided between the wall surface 2 and the rear wall portion 11b, and the upper suction port 15a or the lower suction port 15b may be provided in the rear wall portion 11b.

[0154] The upper suction port 15a and / or the lower suction port 15b communicate with the suction surface 9a of the blower 9. The sensor may be provided at any part of the main body 8 as long as it is within the range of the sensor.

[0155] The cavity 14 between the rear wall portion 11b and the front wall portion 11a may be eliminated, and the wall portion 11 may be made into a single plate.

[0156] The following items are independent of the scope of the claims. Although specific descriptions may be provided, they are merely examples and do not limit the scope of the claims. (Item 1) A ventilation system 3 including a main body 8 and a blower 9, The main body 8 includes a housing portion 10, a wall portion 11, and a deflection plate portion 12. The housing 10 includes an upper surface 10a, a front surface 10b, and a lower surface 10c. The lower surface 10c has a downward air outlet 13, The wall portion 11 is provided between the housing portion 10 and the deflection plate portion 12, The deflection plate portion 12 includes a rear portion 12b and a protruding portion 12a protruding forward from the rear portion 12b. The main body 8 has a suction port 15, The blower 9 is provided in the housing 10, and blows out air from the downward air outlet 13 and draws in air from the air inlet 15. The downward air outlet 13 blows out air downward. The protrusion 12a directs the descending air to the front side, The intake port 15 may be configured to suck in air that has descended or ascended toward the front side by the protruding portion 12a.

[0157] According to this configuration, the wind speed of outlet airflow 22 blown out from blower 9 can be reduced by collision with and diffusion against protrusion 12a, thereby generating circulating airflow 23 that is sucked back into blower 9. This improves the zoning performance around protrusion 12a by the air that forms outlet airflow 22. (Item 2) The main body 8 may be configured to be attached to a wall surface 2 within the space.

[0158] According to this configuration, wall surface 2 partially blocks air other than blown airflow 22 drawn into air inlet 15, thereby increasing the amount of circulating airflow 23 and improving zoning performance.

[0159] Here, the space may be an indoor or outdoor space. (Item 3) The air inlet 15 may be arranged rearward of the downward air outlet 13.

[0160] According to this configuration, the path of the circulating airflow 23 can be extended, and therefore the zoning area can be expanded. (Item 4) The main body 8 is attached to a wall surface 2 in the room 1, The room 1 has an exhaust port 7 below the protruding portion 12a, The air inlet 15 includes a lower air inlet 15b that draws in air flowing from below the housing 10 toward the housing 10, The lower intake port 15b does not take in air that has risen toward the front side due to the protrusion 12a, but takes in air that has fallen toward the front side due to the protrusion 12a. The exhaust port 7 may be configured to suck in part of the air that has descended toward the front side by the protruding portion 12a and exhaust it to the outside of the room 1.

[0161] According to this configuration, in addition to circulating airflow 23, it is possible to generate downward airflow 24, which is another branch of blown airflow 22. This makes it possible to expand the zoning area. Furthermore, because downward airflow 24 is exhausted from exhaust port 7, it is possible to prevent the expanded zoning area from expanding excessively. Therefore, it is possible to maintain local zoning. (Item 5) The protruding portion 12a may be configured to be provided at a position 170 cm or higher above the floor 6 of the room 1.

[0162] With this configuration, the circulating air current 23 and the downward air current 24 are generated from a height of 170 cm or more. This makes it possible to create a zone that includes the nose height (nose position 19, height 20) of the average height of a Japanese adult male, or even higher height positions. (Item 6) The air inlet 15 includes an upper air inlet 15a that draws in air flowing from above the housing 10 toward the housing 10, The upper suction port 15a may be configured to be openable and closable by a closing plate 16.

[0163] According to this configuration, the amount of circulating airflow 23 can be adjusted by opening and closing upper intake port 15a by attaching and detaching closure plate 16, thereby making it possible to adjust the size of the zoning area. (Item 7) The main body 8 is attached to a wall surface 2 in the room 1, The chamber 1 has an exhaust port 7 above the protrusion 12a, The air inlet 15 includes an upper air inlet 15a that draws in air flowing from above the housing 10 toward the housing 10, The upper intake port 15a does not suck in air that has descended toward the front side due to the protrusion 12a, but sucks in air that has ascended toward the front side due to the protrusion 12a. The exhaust port 7 may be configured to suck in part of the air that rises toward the front side by the protruding portion 12a and exhaust it to the outside of the room 1.

[0164] According to this configuration, in addition to circulating airflow 23, it is possible to generate ascending airflow 26, which is another branch of blown-out airflow 22. This makes it possible to expand the zoning area. Furthermore, because ascending airflow 26 is exhausted from exhaust port 7, it is possible to prevent the expanded zoning area from expanding excessively. Therefore, it is possible to maintain local zoning. (Item 8) The protrusion 12a may be configured to be provided at a position less than 150 cm above the floor 6 of the room 1.

[0165] With this configuration, circulating air currents and rising air currents are generated from a height of less than 150 cm, making it possible to create zoning that includes the height of the nose of the average Japanese adult male (nose position 19, height 20) or even lower. (Item 9) The air inlet 15 includes a lower air inlet 15b that draws in air flowing from below the housing 10 toward the housing 10, The lower suction port 15b may be configured to be openable and closable by a closing plate 16.

[0166] According to this configuration, the amount of circulating airflow 23 can be adjusted by opening and closing the lower suction port 15b by attaching and detaching the closure plate 16, thereby making it possible to adjust the size of the zoning area. (Item 10) The wall portion 11 includes a front wall portion 11a and a rear wall portion 11b. A cavity 14 is formed between the front wall portion 11a and the rear wall portion 11b. The air drawn in from the lower intake port 15b passes through the cavity 14 and is then drawn into the blower 9. The configuration may be such that the information is embedded in the data.

[0167] According to this configuration, when dust is contained in the intake airflow 21, the intake airflow 21 can be prevented from flowing along the wall surface 2. Therefore, it is possible to prevent the wall surface 2 from being soiled by dust adhering thereto.

[0168] Although the ventilation system according to the present disclosure has been described above based on the examples, the present disclosure is not limited to the examples. As long as it does not deviate from the spirit of the present disclosure, various modifications conceivable by a person skilled in the art to the examples and configurations constructed by combining components of different examples are also included within the scope of the present disclosure. [Explanation of symbols]

[0169] 1 room 2. Wall 3. Ventilation system 4 Urinals 5. Lining 5a Front cover 5b Top cover 6 beds 7. Exhaust port 8 Main Unit 9. Blower 9a Suction surface 9b Blowout surface 10 Housing 10a top surface 10b front 10c Bottom 11 Wall 11a Front wall 11b Rear wall 12 Deflection plate section 12a Protrusion 12b Rear part 13 Downward outlet 14 Cavity 15 Intake port 15a Upper intake port 15b Lower intake port 16 Occlusion plate 17 Fragrance device 18 Height 19 Nose position 20 Height 21 Intake airflow 22 Outlet airflow 23 Circulating Airflow 24 Downdraft 25 Ceiling 26 Updraft 27 Ground 28 Posts 29 Bench 29a Left side settee 29b Right bench 30 Drooping part 30a Bottom side 31 Ventilation slit 41 Wind path 51 Gap 52 Gap

Claims

1. A ventilation system including a main body and a blower, the main body includes a housing portion, a wall portion, and a deflection plate portion; the housing includes an upper surface, a front surface, and a lower surface; The lower surface has a downward air outlet, the wall portion is provided between the housing portion and the deflection plate portion, the deflection plate portion includes a rear portion and a protruding portion protruding forward from the rear portion, The main body has an inlet, the blower is provided in the housing and blows air from the downward air outlet and draws air from the air inlet; The downward air outlet blows out air in a downward direction, The protrusion directs the descending air to the front side, The air intake port draws in air that has descended or ascended toward the front side by the protrusion.

2. The air blowing system according to claim 1, wherein the main body is attached to a wall surface within a space.

3. The air blowing system according to claim 2 , wherein the air inlet is disposed rearward of the downward air outlet.

4. The main body is attached to a wall in a room, the chamber has an exhaust port below the protrusion, the suction port includes a lower suction port that draws in air flowing from below the housing toward the housing, the lower intake port does not take in air that has risen toward the front side due to the protrusion, but takes in air that has fallen toward the front side due to the protrusion, The ventilation system according to claim 1, wherein the exhaust port draws in a portion of the air that has descended toward the front side by the protrusion and exhausts it to the outside of the room.

5. The ventilation system according to claim 4, wherein the protrusion is provided at a height of 170 cm or more from the floor of the room.

6. the suction port includes an upper suction port that draws in air flowing from above the housing toward the housing, The ventilation system according to claim 4, wherein the upper air inlet can be opened and closed by a closing plate.

7. The main body is attached to a wall in a room, the chamber has an exhaust port above the protrusion, the suction port includes an upper suction port that draws in air flowing from above the housing toward the housing, the upper intake port does not take in air that has descended toward the front side due to the protrusion, but takes in air that has ascended toward the front side due to the protrusion, The ventilation system according to claim 1, wherein the exhaust port draws in a portion of the air that has risen toward the front side by the protrusion and exhausts it to the outside of the room.

8. The ventilation system according to claim 7, wherein the protrusion is provided at a position less than 150 cm above the floor of the room.

9. the suction port includes a lower suction port that draws in air flowing from below the housing toward the housing, The ventilation system according to claim 7, wherein the lower intake port can be opened and closed by a closing plate.

10. the wall portion includes a front wall portion and a rear wall portion; a cavity between the front wall portion and the rear wall portion; The ventilation system according to claim 4, wherein the air drawn in through the lower intake port passes through the cavity and is then drawn into the fan.

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