JP2023174430A - Blowing device - Google Patents

Abstract

To provide a blowing device capable of securing a recirculation passage in a living room space where an individual person can stay, and sending air current having a high straight advancing property along a blowout direction.SOLUTION: A blowing device 1 installed in a living room space 3 formed of a floor board 4, a side panel 5, and a top board 6, comprises: four top nozzles 14 blowing out air flowing toward the side of the floor board 4 from the side of the top board 6; and a blower 20 sending the air to the top nozzles 14. The four top nozzles 14 are disposed side by side at intervals so that their blowout ports 15 are located on the same plane. When the top nozzle 14 adjacent to the side panel 5 is a first top nozzle 14a and the top nozzle 14 adjacent to the first top nozzle 14a is a second top nozzle 14b, at least the quantity of the air blown out through the second top nozzle 14b is controlled to be larger than the quantity of the air blown out through the first top nozzle 14a.SELECTED DRAWING: Figure 3

Description

The present invention relates to a blower device that is installed in a living room space and blows air from a ceiling side toward a floor side.

As a conventional blower device, a blower device that generates a highly straight airflow along the blowing direction (hereinafter sometimes referred to as "plane wind" or "plane airflow") is known (for example, , see Patent Document 1).

Conventional air blowers have a high-pressure air generation section that consists of a suction port that takes in air, an impeller that generates high-pressure air, and a motor that drives the impeller, and a and a plurality of upright nozzles. This nozzle is provided with an outlet on the side that blows out high-pressure air generated by the high-pressure air generating section in a direction perpendicular to the direction in which the nozzle is erected, and a duct for guiding the high-pressure air to the outlet. In addition, this nozzle has a vertical cross section that is elongated in the blowing direction, and is provided with a gap so that each of the plurality of blowing outlets is on the same plane. An induced air path for air (induced air) is formed. BACKGROUND ART Conventional air blowing devices generate highly straight airflow along the blowing direction using air blown out from a plurality of nozzles and induced air flowing through an induced air path.

JP 2017-115629 Publication

The inventors of the present invention have newly obtained the following knowledge regarding the blower device.

When a conventional air blower is installed in a living space where an individual can stay (for example, a private booth) to create a downflow of surface air, the air is introduced into the induced air path in a limited space. Because a sufficient recirculation path cannot be ensured, air cannot be stably attracted to the induced air path, which may result in non-uniform wind speed along the blowing direction. In other words, the technique described in Patent Document 1 has room for improvement from the viewpoint of allowing surface airflow to reach a target location.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a blower device that can ensure a circulation path in a living space where an individual can stay and can send airflow that is highly straight in the blowing direction.

In order to achieve this objective, the air blower according to the present invention includes a living space formed by a floorboard, a side panel, and a top board, and an air supply port for supplying air to the living space. This is an air blower installed in a booth, and has an exhaust port for discharging air from a living space. The blower device is arranged offset from the top board, and has three or more top nozzles each having a slit-shaped outlet that blows out air flowing from the top board side toward the floor board side, and air sucked in from the air supply port. A blower blows air to the top nozzle. The three or more top nozzles are arranged in parallel with a gap so that their respective air outlets are located on the same surface, and among the three or more top nozzles, the top nozzle adjacent to the side panel is designated as the first top nozzle. When the top nozzle adjacent to the first top nozzle is the second top nozzle, at least the volume of air blown out from the outlet of the second top nozzle is larger than the volume of air blown out from the outlet of the first top nozzle. It is controlled to become.

Another blower device according to the present invention includes a living space formed by a floorboard, a side panel, and a top board, an air supply port for supplying air to the living space, and an air supply port for discharging air from the living space. This is an air blower installed in a booth that has an exhaust port for The blower device is arranged offset from the top board, and has six or more top nozzles each having a slit-shaped outlet that blows out air flowing from the top board side toward the floor board side, and air sucked in from the air supply port. A blower blows air to the top nozzle. Six or more top nozzles are arranged side by side with a gap so that the air outlets are located on the same surface, and among the six or more top nozzles, the side panel side including the top nozzle adjacent to the side panel If the top nozzles located at The air volume is controlled to be larger than the air volume blown out from the outlet of the first group of top nozzles.

Through these, the intended purpose is achieved.

According to the present invention, it is possible to provide a blower device that can secure a circulation path in a living space where an individual can stay and can blow airflow that is highly straight in the blowing direction.

FIG. 1 is a perspective view showing a booth in which a blower device according to Embodiment 1 of the present invention is installed. FIG. 2 is a side view showing the flow of airflow generated by the blower device according to Embodiment 1 of the present invention. FIG. 3 is a front view showing the flow of airflow generated by the blower device according to Embodiment 1 of the present invention. FIG. 4 is a partial cross-sectional view showing the flow of airflow generated by the air blower according to Embodiment 1 of the present invention. FIG. 5 is a perspective view showing a booth in which a blower device according to Embodiment 2 of the present invention is installed. FIG. 6 is a side view showing the flow of airflow generated by the blower device according to Embodiment 2 of the present invention. FIG. 7 is a partial cross-sectional view showing the flow of airflow generated by the air blower according to Embodiment 2 of the present invention.

The air blower according to the present invention includes a living space formed by a floorboard, a side panel, and a top board, an air supply port for supplying air to the living space, and a vent for discharging air from the living space. This is an air blower installed in a booth that has an exhaust port. The blower device is arranged offset from the top board, and has three or more top nozzles each having a slit-shaped outlet that blows out air flowing from the top board side toward the floor board side, and air sucked in from the air supply port. A blower blows air to the top nozzle. The three or more top nozzles are arranged in parallel with a gap so that their respective air outlets are located on the same surface, and among the three or more top nozzles, the top nozzle adjacent to the side panel is designated as the first top nozzle. When the top nozzle adjacent to the first top nozzle is the second top nozzle, at least the volume of air blown out from the outlet of the second top nozzle is larger than the volume of air blown out from the outlet of the first top nozzle. It is controlled to become.

According to such a configuration, the air flow from the first top nozzle toward the floorboard is attracted by the air flow from the second top nozzle having a large air volume toward the floorboard, and the air flow from the first top nozzle to the side panel adjacent to the first top nozzle Collision with the airflow caused by the return airflow returning from the floorboard side to the topboard side along the direction can be suppressed. As a result, a return flow path is secured, which is a path for introducing the air attracted to the induced air path in a limited living space, and the air is stably attracted to the induced air path, so that it is It is possible to send airflow with high straightness. In other words, by controlling the air volume (air supply amount) from three or more top nozzles, a return flow path is secured in the narrow living space that makes up the booth (for example, a living space where an individual can stay), and the blowing direction is It is possible to create an air blower that can blow a highly straight air flow along the direction of the air.

Moreover, in the air blower according to the present invention, the booth further includes a hollow space communicating with the living room space and an inner panel separating the living room space and the hollow space. The three or more top nozzles extend from the inner panel toward the side panel facing the inner panel, and the hollow space includes a chamber that controls the flow of air toward the top nozzle and communicates with the chamber. A duct and a blower may be provided to generate an air flow from the air supply port through the duct and the chamber to the outlet of the top nozzle. According to this configuration, air is introduced into the top nozzle from outside the booth through the air supply port, with the main components of the blower device hidden from the living space in the hollow space, and air is introduced from the top nozzle air outlet in the blowing direction. It is possible to generate a flow of air along the (plane airflow).

Moreover, in the air blower according to the present invention, it is preferable that the air blower is provided for each of three or more top nozzles. By doing so, the amount of air blown out from the air outlet of the top nozzle can be easily adjusted for each of the three top nozzles.

Further, in the air blower according to the present invention, the three or more top nozzles may be arranged such that the distance between the first top nozzle and the side panel adjacent to the first top nozzle is the same as that between the first top nozzle and the second top nozzle. It is preferable that the space is larger than the distance between the living room spaces. By doing this, the recirculation path through which the recirculation airflow flows is more reliably secured, so that the air blown out from the outlet of the top nozzle can be further promoted to reach the target location as a surface airflow. .

Another blower device according to the present invention includes a living space formed by a floorboard, a side panel, and a top board, an air supply port for supplying air to the living space, and an air supply port for discharging air from the living space. This is an air blower installed in a booth that has an exhaust port for The blower device is arranged offset from the top board, and has six or more top nozzles each having a slit-shaped outlet that blows out air flowing from the top board side toward the floor board side, and air sucked in from the air supply port. A blower blows air to the top nozzle. Six or more top nozzles are arranged side by side with a gap so that the air outlets are located on the same surface, and among the six or more top nozzles, the side panel side including the top nozzle adjacent to the side panel If the top nozzles located at The air volume is controlled to be larger than the air volume blown out from the outlet of the first group of top nozzles.

According to this configuration, the air flow from the first group of top nozzles toward the floorboard is attracted by the air flow from the second group of top nozzles, which has a large air volume, toward the floorboard, and is adjacent to the first group of top nozzles. Collision with the air flow caused by the return air flow returning from the floorboard side to the top board side along the side panel can be suppressed. As a result, a return flow path is secured, which is a path for introducing the air attracted to the induced air path in a limited living space, and the air is stably attracted to the induced air path, so that it is It is possible to send airflow with high straightness. In other words, by controlling the air volume (air supply amount) from six or more top nozzles, a return flow path is secured in the narrow living space that makes up the booth (for example, a living space where an individual can stay), and the blowing direction is It is possible to create an air blower that can blow a highly straight air flow along the direction of the air.

Further, in another blowing device according to the present invention, it is preferable that the first group of top nozzles is controlled such that the volume of air blown out from the outlet of the top nozzle increases as it approaches the second group of top nozzles. As a result, the airflow blown out from the top nozzle adjacent to the side panel is also attracted by the airflow blown out from the top nozzle adjacent to it, so that the airflow blown out from the top nozzle adjacent to the side panel It is possible to further suppress collision with the air flow due to the return air flow returning from the floorboard side to the top board side along the .

Embodiments of the present invention will be described below with reference to the drawings. Note that the following embodiments are examples of embodying the present invention, and do not limit the technical scope of the present invention.

(Embodiment 1)
First, a blower device 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view showing a booth 2 in which a blower device 1 according to Embodiment 1 of the present invention is installed. More specifically, (a) of FIG. 1 is a perspective view showing the structure of the booth 2 in which the blower 1 is installed, and (b) of FIG. 1 is a perspective view of the structure of the booth 2 in which the blower 1 is installed. FIG. 3 is a transparent perspective view showing the internal structure. FIG. 2 is a side view showing the flow of airflow generated by the blower device 1 according to Embodiment 1 of the present invention. FIG. 3 is a front view showing the flow of airflow generated by the blower device 1 according to Embodiment 1 of the present invention. In addition, in FIG. 2, the flow of air is shown without distinguishing between the first top nozzle 14a to the fourth top nozzle 14d.

The booth 2 is an equipment unit that has a narrow space (living room space 3a) in which at least one person can stay, and has an outlet of the air blower 1 disposed on the ceiling side thereof. In this example, the booth 2 is a private room for one person equipped with a desk 12, a chair 13, etc. for remote work or study, and can also be called a private booth.

Specifically, as shown in FIG. , an air supply port 21 , and an exhaust port 22 . Further, inside the booth 2, there is a living room space 3a and a hollow space 3b as a living room space 3.

The floorboard 4 is a rectangular board placed on the floor side of the booth 2.

The side panel 5 is composed of four rectangular plates, a first side panel 5a, a second side panel 5b, a third side panel 5c, and a fourth side panel 5d. It is installed upwards.

The first side panel 5a is a side panel 5 provided with a door 11, and connects one end of the third side panel 5c and one end of the fourth side panel 5d.

The second side panel 5b is a side panel 5 disposed at a position facing the first side panel 5a, and connects the other end of the third side panel 5c and the other end of the fourth side panel 5d.

The third side panel 5c is a side panel 5 provided with an air supply port 21, and connects one side end of the first side panel 5a and one side end of the second side panel 5b.

The fourth side panel 5d is a side panel 5 that is disposed at a position facing the third side panel 5c, and is provided with an exhaust port 22. Connect the side ends.

The top board 6 is a rectangular plate material that covers the opening formed by the side panel 5 standing upright. The top board 6 is provided above the floor board 4, and corresponds to the ceiling surface of the booth 2 when the floor board 4 is the floor surface of the booth 2.

In the booth 2, a narrow living space 3 is configured by a floorboard 4, a side panel 5, and a top board 6. The living room space 3 is, for example, a space with a floor area of about 2 m ² .

The inner panel 7 is a rectangular plate material that divides the living space 3 in the booth 2 into a living space 3a where the user stays and a hollow space 3b in which the main components of the blower device 1, which will be described later, are installed. The inner panel 7 is provided on the floorboard 4 so as to be located on the third side panel 5c side.

The living room space 3a is a space where the user of the booth 2 can enter and leave the room and stay there. More specifically, the living space 3a is the main space in the living space 3 of the booth 2, and includes the floorboard 4 and side panels 5 (first side panel 5a, second side panel 5b, and fourth side panel 5d). ), a top board 6, an inner panel 7, and a door 11. The living room space 3a has a floor area of, for example, about 1.5 ^m2 . Further, in the living room space 3a, as shown in FIG. 1(b), a desk 12 and a chair 13 are arranged at predetermined positions.

The door 11 is a tool used by a user staying in the living room space 3a when entering and leaving the room. The door 11 is provided on the first side panel 5a.

The desk 12 is a tool on which a user staying in the living room space 3a places a computer, documents, etc. and works thereon. The desk 12 is provided so as to be in contact with the fourth side panel 5d.

The chair 13 is used by a user staying in the living room space 3a to sit. The chair 13 is arranged so as to come into contact with the inner panel 7.

The hollow space 3b communicates with the living room space 3a, and is a space in which the main components of the blower device 1 are installed. More specifically, the hollow space 3b is formed by the floorboard 4, the side panels 5 (the first side panel 5a, the second side panel 5b, and the third side panel 5c), the top board 6, and the inner panel 7. configured. The hollow space 3b has a floor area of, for example, about 0.5 ^m2 . Although details will be described later, a chamber 18, a duct 19, and a blower 20 are arranged at predetermined positions in the hollow space 3b as main components of the blower 1.

The air supply port 21 is a rectangular opening for supplying air from the outside to the living room space 3a, and is provided at a position on the floorboard 4 side of the third side panel 5c. The air supply port 21 sucks air from outside the booth 2 when a blower 20, which will be described later, operates. In addition, although the air supply port 21 is rectangular, it is not limited to this, and may be a polygon other than a rectangle or a circle.

The exhaust port 22 is a rectangular opening for discharging air from the living room space 3a to the outside, and is provided at a position on the floorboard 4 side of the fourth side panel 5d. The exhaust port 22 exhausts air from the living room space 3a when a blower 20, which will be described later, operates. Although the exhaust port 22 is rectangular, it is not limited to this, and may be polygonal or circular other than rectangular.

The blower device 1 is a device that blows air flowing from the top board 6 side toward the floor board 4 side in the living room space 3a of the booth 2, and generates a downflow surface air current (downdraft) in the living room space 3a.

Specifically, as shown in FIG. 1(b), the blower device 1 includes a plurality of (four in this embodiment) top nozzles 14 (first top nozzle 14a to fourth top nozzle 14d), The chamber 18 (first chamber 18a to fourth chamber 18d), duct 19 (first duct 19a to fourth duct 19d), and blower 20 (first blower 20a to fourth blower 20d) corresponding to the top nozzle 14 are have

The top nozzle 14 is a type of rectangular ventilation pipe into which air conveyed by the blower 20 flows. The top nozzle 14 has an air outlet 15 on the lower surface of the top nozzle 14 . The top nozzle 14 is installed at a predetermined position on the top board 6 side of the living room space 3a, and blows out air flowing from the top board 6 side toward the floorboard 4 side from the air outlet 15. More specifically, the top nozzle 14 is arranged offset from the top board 6, as shown in FIGS. 2 and 3. That is, a predetermined space (a space in which a negative pressure region S3, which will be described later) is formed between the top nozzle 14 and the top board 6.

As shown in FIG. 2, the top nozzle 14 extends horizontally from above the inner panel 7 toward the fourth side panel 5d. At this time, the top nozzle 14 is connected to the chamber 18 on the side starting from the inner panel 7 .

Here, "above the inner panel 7" refers to a position higher than the head of a standing human body, and specifically refers to a position at a height of 200 cm or more from the floorboard 4 in the living room space 3a. Furthermore, "extending horizontally" refers to standing up in a direction parallel to the floorboard 4 serving as the floor surface and the top board 6 serving as the ceiling surface in the living room space 3a.

The four top nozzles 14 (first top nozzle 14a to fourth top nozzle 14d) are arranged in parallel from one end of the inner panel 7 to one end of the fourth side panel 5d, as shown in FIG. At this time, the four top nozzles 14 are arranged in parallel with a gap d between them, as shown in FIG. In the entire top nozzle 14, the distance D between the first top nozzle 14a and the first side panel 5a is set to be larger than the distance d between the first top nozzle 14a and the second top nozzle 14b. is placed in the living room space 3a. Further, the distance D between the fourth top nozzle 14d and the fourth side panel 5d is also arranged to be larger than the distance d between the fourth top nozzle 14d and the third top nozzle 14c. In this embodiment, the distance D is 390 mm, and the distance d is 146 mm. Further, the number of top nozzles 14 is not limited to four, but may be at least three or more.

The air outlet 15 is a slit-shaped opening formed on the lower surface of the top nozzle 14 . That is, the air outlet 15 is provided facing downward. The air outlet 15 blows out the air flowing into the top nozzle 14 from the top board 6 side toward the floor board 4.

Here, "facing downward" indicates directly facing the floorboard 4 in the living room space 3a. That is, the air outlet 15 is provided on the surface that directly faces the floorboard 4 among the surfaces forming the rectangular top nozzle 14 . Further, the air outlet 15 is a rectangular opening, and is formed so that the direction in which it is erected is the long side, and the direction parallel to the inner panel 7 is the short side. One blower outlet 15 is provided for one top nozzle 14. The air outlets 15 belonging to each top nozzle 14 are arranged on the same plane when a certain horizontal plane is imagined. That is, in the living room space 3a, the air outlets 15 belonging to each top nozzle 14 are arranged at the same height from the floorboard 4.

The chamber 18 is a housing that connects the top nozzle 14 and the duct 19 in communication. The chamber 18 controls the flow of air (direction of airflow) toward the top nozzle 14 . More specifically, the top nozzle 14 is connected to the side surface of the chamber 18, and the duct 19 is connected to the bottom surface of the chamber 18. The chamber 18 controls the direction in which the air flowing in from the duct 19 flows toward the top nozzle 14 . One chamber 18 is connected to one top nozzle 14 . That is, four chambers 18, the same number as the top nozzles 14, are arranged. Chamber 18 is arranged above inner panel 7 . Note that the shape of the chamber 18 is not particularly specified as long as the top nozzle 14 and the duct 19 can be connected in communication.

The duct 19 is a ventilation pipe for conveying air sucked into the blower 20 from the air supply port 21 to the chamber 18. The duct 19 is connected to the chamber 18 at one end and to the blower 20 at the other end. One duct 19 is arranged for each chamber 18 . That is, four ducts 19 are arranged. For example, a known flexible duct can be used as the duct 19.

The blower 20 is a device that generates an airflow from the air supply port 21 to the blowout port 15 of the top nozzle 14 via the duct 19 and the chamber 18 . As the blower 20, for example, a known turbo machine such as a centrifugal blower can be used. One blower 20 is connected to one top nozzle 14. That is, four blowers 20, the same number as the top nozzles 14, are arranged. More specifically, as shown in FIG. 1, the blower 20 includes a first blower 20a that blows air to the first top nozzle 14a, a second blower 20b that blows air to the second top nozzle 14b, and a third blower 20b that blows air to the second top nozzle 14b. It has a third blower 20c that blows air to the top nozzle 14c, and a fourth blower 20d that blows air to the fourth top nozzle 14d.

The first blower 20a generates a flow of air from the air supply port 21 toward the first top nozzle 14a at a position adjacent to the first side panel 5a, and directs the air sucked from the air supply port 21 to the first duct 19a and the first top nozzle 14a. It is supplied to the first top nozzle 14a through the first chamber 18a.

The second blower 20b generates a flow of air from the air supply port 21 toward the second top nozzle 14b at a position adjacent to the first blower 20a, and transfers the air sucked from the air supply port 21 to the second duct 19b and the second top nozzle 14b. The liquid is supplied to the second top nozzle 14b via the second chamber 18b.

The third blower 20c generates a flow of air from the air supply port 21 toward the third top nozzle 14c at a position adjacent to the second blower 20b and a position adjacent to the fourth blower 20d. The air sucked from the top nozzle 14c is supplied to the third top nozzle 14c via the third duct 19c and the third chamber 18c.

The fourth blower 20d generates a flow of air from the air supply port 21 toward the fourth top nozzle 14d at a position adjacent to the third blower 20c and a position adjacent to the second side panel 5b. 21 is supplied to the fourth top nozzle 14d via the fourth duct 19d and the fourth chamber 18d.

Here, each of the four blowers 20 (first blower 20a to fourth blower 20d) is provided with a mechanism that can adjust the air volume (air supply amount). Although the details will be described later, in this embodiment, the four blowers 20 are configured such that the amount of air blown by the second blower 20b and the third blower 20c is larger than the amount of air blown by the first blower 20a and the fourth blower 20d. is controlled by.

As described above, the blower device 1 is configured.

Note that the blower device 1 may include a filter for collecting dust and the like contained outside the booth 2 on the air path through which the airflow blown out from the outlet 15 of the top nozzle 14 passes. Thereby, air containing less foreign matter such as dust than before passing through the filter can be supplied to the living room space 3a. Moreover, when the air blower 1 is equipped with a filter, it is preferable that the air blower 20 is arrange|positioned on the downstream side with respect to a filter. Thereby, it is possible to suppress the accumulation of foreign substances such as dust on the blower 20. Therefore, the possibility that a tracking phenomenon will occur due to moisture and foreign matter such as dust accumulated on the blower 20 can be reduced.

Next, with reference to FIGS. 2 and 3, the flow of airflow generated by the operation of the blower device 1 will be described.

As shown in FIG. 2, when the blower 20 starts operating, air outside the booth 2 becomes an airflow AF12 and is sucked in from the air supply port 21. Air (airflow AF12) sucked in from the air supply port 21 flows inside the duct 19 as an airflow AF13 and is conveyed to the chamber 18.

The air (airflow AF13) conveyed to the chamber 18 is moved by the chamber 18 from the vertical direction (from the floorboard 4 side to the topboard 6 side) to the horizontal direction (from the third side panel 5c side to the fourth side). The direction of the flow is switched to the direction (toward the panel 5d). That is, the air conveyed to the chamber 18 is controlled by the flow of air toward the top nozzle 14 and flows inside the top nozzle 14 as the airflow AF14.

The air (airflow AF14) that has flowed into the top nozzle 14 is blown out from the air outlet 15 downward, that is, toward the floorboard 4, as an airflow AF15.

The air (airflow AF15) blown out from the outlet 15 is combined with airflow AF21a and airflow AF21b which are induced airflows to be described later, and flows toward the floorboard 4 within the living room space 3a as an airflow AF31 which is a surface airflow. . Details of the airflow AF 31 will be described later.

Thereafter, a part of the air (airflow AF31) that reaches the floorboard 4 is exhausted to the outside of the booth 2 from the exhaust port 22 as an airflow AF31a. Further, as shown in FIG. 3, the other part of the air (airflow AF31) that reaches the floorboard 4 is reflected by the floorboard 4 and becomes airflow AF31b, The air flows along the side panel 5b) as a return air flow AF41 toward the top board 6. Further, a part of the air (airflow AF31) that reaches the top surface of the desk 12 is also reflected on the top surface of the desk 12 and becomes airflow AF31c. The airflow AF31c flows as a part of the airflow AF41, which is an upward airflow (hereinafter also referred to as a return airflow) toward the top board 6 along the side panel 5 (the first side panel 5a or the second side panel 5b).

As described above, in the present embodiment, as the airflow AF31 flows as a downward airflow in the central region of the living room space 3a, the airflow AF41 flows as a return airflow in the end region of the living room space 3a. In other words, it can be said that a "reflux air path" through which the airflow AF 41 flows is formed in the end region of the living room space 3a along the vicinity of the surface of the side panel 5 (the first side panel 5a or the second side panel 5b). .

Next, with reference to FIG. 4, the airflow AF31, which is a surface airflow, will be described. FIG. 4 is a partial cross-sectional view showing the flow of airflow generated by the air blower 1 according to the first embodiment of the present invention. In this embodiment, when the operation of the blower device 1 is started, the first blower 20a and the fourth blower 20d both operate with an air flow rate of 50 m ³ /h, and the second blower 20b and the third blower The blowers 20c are all controlled to operate at an air flow rate of 100 m ³ /h.

As shown in FIG. 4, when the first blower 20a and the fourth blower 20d operate, air from outside the booth 2 is sucked through the air supply port 21, and the air is sucked into the first blower port 15a of the first top nozzle 14a and the fourth top nozzle 14d. The airflow AF 15a is blown out from the fourth outlet 15d. On the other hand, when the second blower 20b and the third blower 20c operate, air from outside the booth 2 is sucked in from the air supply port 21, and the second blower port 15b of the second top nozzle 14b and the third blower port of the third top nozzle 14c are sucked in from the air supply port 21. Air currents AF 15b are blown out from 15c.

The air volume of the airflow AF 15a is approximately 50 m 3 /h, corresponding to the air volume of the first blower 20a and the fourth blower 20d, and the air volume of the airflow AF 15b is approximately 50 m ³ /h, corresponding to the air volume of the second blower 20b and the third blower 20c. It is approximately 100m ³ /h.

When the airflow AF15a and the airflow AF15b are blown out into the living room space 3a, the air in the space around the airflow AF15a and the airflow AF15b is attracted to the airflow AF15a and the airflow AF15b, and depending on the amount of air blown out, the air in the space around the airflow AF15a and the airflow AF15b is A negative pressure region S1 and a negative pressure region S2 are respectively generated in the space between them. More specifically, a negative pressure region S1 is generated in the space between the first top nozzle 14a and the second top nozzle 14b, and a negative pressure region S2 is generated in the space between the second top nozzle 14b and the third top nozzle 14c. A negative pressure region S1 is generated in the space between the third top nozzle 14c and the fourth top nozzle 14d. Here, negative pressure (also called negative pressure) refers to a state where the atmospheric pressure is lower than the surroundings. In other words, the negative pressure area S1 and the negative pressure area S2 are areas where the atmospheric pressure is lower than the surrounding area.

When the negative pressure area S1 and the negative pressure area S2 are generated, a force that tries to eliminate the negative pressure acts, and air is released from the space around the top nozzle 14 to eliminate the negative pressure area S1 and the negative pressure area S2. Flows (airflow AF21a and airflow AF21b) are generated. More specifically, the airflow caused by the negative pressure region S1 is the airflow AF21a, and the airflow caused by the negative pressure region S2 is the airflow AF21b. The airflow AF21a and the airflow AF21b are also called induced airflows. Further, the space between the top nozzles 14 through which the airflow AF 21a or the airflow AF 21b flows is also called an induced air path.

Furthermore, in a limited space such as the living room space 3a, the air in the space around the airflow AF21a and the airflow AF21b (the space near the inlet of the induced air path) is attracted by the airflow AF21a and the airflow AF21b, and the top nozzle 14 A negative pressure region S3 is generated in the space between the top board 6 and the top board 6. As a result, an air flow (air flow AF41) for eliminating the negative pressure region S3 is generated. In other words, a return flow path is formed that is a path for introducing air attracted to the induced air path via the negative pressure region S3, and air is attracted to the induced air path. Note that since the air volume relationship between the airflow AF15a and the airflow AF15b is airflow AF15b>airflow AF15a, the magnitude of the negative pressure is negative pressure region S2>negative pressure region S1. Therefore, the air volume relationship between the airflows AF21a and AF21b is as follows: airflow AF21b>airflow AF21a.

The airflow AF15a and the airflow AF15b, as well as the airflow AF21a and the airflow AF21b, are all combined to form an airflow AF31 which is a surface airflow in the living room space 3a.

On the other hand, the airflow AF41 is air directed toward the space between the top nozzle 14 and the top board 6, but the airflow direction is different from the airflow AF15a and the airflow AF15b, as well as the airflow AF21a and the airflow AF21b, and the flow direction of the airflow is different from the floorboard 4. The airflow is directed toward the top board 6 from the side (reflux airflow). Therefore, the airflow AF41 may disturb the flow of the airflow AF15a adjacent to the airflow AF41, which may become a factor that impedes the straightness of the airflow. However, in this embodiment, since the air volume relationship between the airflow AF15a and the airflow AF15b is "airflow AF15b>airflow AF15a", the airflow AF15a is attracted to the airflow AF15b adjacent to the airflow AF15a. Thereby, the airflow AF15a becomes less susceptible to the influence of the airflow AF41, so that the airflow AF31 as a whole can maintain a surface airflow that is a linear airflow in the blowing direction.

As mentioned above, according to the air blower 1 according to the first embodiment, the following effects can be enjoyed.

(1) The air blower 1 includes a living space 3 (living space 3a) formed by a floorboard 4, a side panel 5, and a top board 6, and an air supply port 21 for supplying air to the living space 3a. and an exhaust port 22 for discharging air from the living room space 3a. The blower device 1 includes four top nozzles 14 that are arranged offset from the top board 6 and each have a slit-shaped outlet 15 that blows out air flowing from the top board 6 side toward the floorboard 4 side, and an air supply port. A blower 20 that blows air sucked in from 21 to a top nozzle 14 is provided. The four top nozzles 14 are arranged in parallel with a gap so that the air outlet 15 is located on the same surface, and among the four top nozzles 14, the top nozzle 14 adjacent to the side panel 5 is When the top nozzle 14 adjacent to the first top nozzle 14a is the second top nozzle 14b, the volume of air blown out from at least the second outlet 15b of the second top nozzle 14b is equal to that of the first top nozzle. The amount of air blown out from the first outlet 15a of the first outlet 14a is controlled to be greater than the amount of air blown out.

According to this configuration, the flow of air from the first top nozzle 14a toward the floorboard 4 is attracted by the flow of air from the second top nozzle 14b, which has a large air volume, toward the floorboard 4, and the flow of air toward the floorboard 4 from the first top nozzle 14a Collision with the air flow caused by the return air flow (air flow AF41) returning from the floorboard 4 side to the top board 6 side along the first side panel 5a adjacent to the first side panel 5a can be suppressed. As a result, a return flow path is secured in the limited living space 3a, which is a path for introducing the air attracted to the induced air path, and the air is stably attracted to the induced air path, so that the air is directed in the blowing direction. It is possible to send airflow with high straightness along the line. In other words, by controlling the air volume (air supply amount) from the four top nozzles, a return flow path is secured in the narrow living space 3a (for example, a living space where an individual can stay) that makes up the booth 2, and the air flow is The blower device 1 can blow a highly straight air flow along the direction.

Note that the first top nozzle 14a and the second top nozzle 14b correspond to the "first top nozzle" and "second top nozzle" in the claims, respectively, but the fourth top nozzle 14d and the third top nozzle 14c also correspond to the "first top nozzle" and "second top nozzle" in the claims. , respectively correspond to the "first top nozzle" and "second top nozzle" in the claims. Further, the same effect can be obtained from the four top nozzles 14 as long as there are at least three or more top nozzles 14.

(2) In the blower device 1, the booth 2 further includes a hollow space 3b that communicates with the living room space 3a, and an inner panel 7 that partitions the living room space 3a and the hollow space 3b. The four top nozzles 14 extend from the inner panel 7 toward the fourth side panel 5d facing the inner panel 7, and the hollow space 3b includes a chamber for controlling the flow of air toward the top nozzles 14. 18, a duct 19 that communicates with the chamber 18, and a blower 20 that generates an air flow from the air supply port 21 through the duct 19 and the chamber 18 toward the outlet 15 of the top nozzle 14. According to this configuration, air is introduced into the top nozzle 14 from outside the booth 2 through the air supply port 21 while the main components of the blower 1 are hidden from the living room space 3a in the hollow space 3b, and the top nozzle An air flow (plane air flow) along the blowing direction can be generated from the 14 blow-off ports 15.

(3) In the blower device 1, the blower 20 is provided for each of the four top nozzles 14. By doing so, the amount of air blown out from the air outlet 15 of the top nozzle 14 can be easily adjusted for each of the four top nozzles 14.

(4) In the air blower 1, the four top nozzles 14 have a distance D between the first top nozzle 14a and the first side panel 5a adjacent to the first top nozzle 14a. It is arranged in the living room space 3a so as to be larger than the distance d between the two top nozzles 14b. By doing this, the recirculation path through which the recirculation airflow (airflow AF41) flows can be secured more reliably, so that the air blown out from the outlet 15 of the top nozzle 14 can reach the target location as a surface airflow. This can be further promoted.

(Embodiment 2)
A blower device 1a according to the second embodiment will be described with reference to FIGS. 5 to 7. FIG. 5 is a perspective view showing a booth in which a blower device 1a according to Embodiment 2 of the present invention is installed. FIG. 6 is a side view showing the flow of airflow generated by the blower device 1a according to Embodiment 2 of the present invention. FIG. 7 is a partial cross-sectional view showing the flow of airflow generated by the air blower 1a according to Embodiment 2 of the present invention.

The air blower 1 according to the first embodiment is configured to have four top nozzles 14, one of the first top nozzles 14a (or the fourth top nozzle 14d) adjacent to the side panel 5, and one of the first top nozzles 14a (or the fourth top nozzle 14d) adjacent to the side panel 5, The air blower 1a according to the second embodiment has seven (at least six or more) air blowers. At least two top nozzles 24 (a first group of top nozzles to be described later) including a first top nozzle 24a adjacent to the side panel 5, and a top nozzle 24 located inside them. (a second group of top nozzles to be described later) controls the air volume to be different. The configuration and control method of the blower device 1a other than this are the same as those of the blower device 1 according to the first embodiment. Hereinafter, the content already explained in Embodiment 1 will be omitted from being explained again, and the points different from Embodiment 1 will be mainly explained.

Similar to the blower device 1 according to Embodiment 1, the blower device 1a according to the second embodiment blows air flowing from the top board 6 side toward the floorboard 4 side in the living room space 3a of the booth 2, and blows out air flowing from the top board 6 side to the floor board 4 side in the living room space 3a in the booth 2. 3a is a device that generates a downflow surface airflow (downdraft).

Specifically, as shown in FIG. It has corresponding chambers 28 (first chamber 28a to seventh chamber 28g), ducts 29 (first duct 29a to seventh duct 29g), and blowers 30 (first blower 30a to seventh blower 30g).

The top nozzle 24 is a type of rectangular ventilation pipe into which air conveyed by the blower 30 flows. The top nozzle 24 has an air outlet 25 on the lower surface of the top nozzle 24 . The top nozzle 24 is installed at a predetermined position on the top board 6 side of the living room space 3a, and blows out air flowing from the top board 6 side toward the floorboard 4 side from the air outlet 25. More specifically, the top nozzle 14 is arranged offset from the top board 6, as shown in FIGS. 6 and 7. That is, a predetermined space (a space where the negative pressure region S3 occurs) is formed between the top nozzle 24 and the top board 6.

As shown in FIG. 6, the top nozzle 24 extends horizontally from above the inner panel 7 toward the fourth side panel 5d. At this time, the top nozzle 24 is connected to the chamber 28 on the side starting from the inner panel 7 .

The seven top nozzles 24 (first top nozzle 24a to seventh top nozzle 14g) are arranged in parallel from one end of the inner panel 7 to one end of the fourth side panel 5d, as shown in FIG. At this time, like the top nozzles 14, the seven top nozzles 24 have a distance d between adjacent top nozzles 24 and a gap D between the side panel 5 and the top nozzle 24. They are arranged side by side. Note that the number of top nozzles 24 is not limited to seven, but may be at least six or more.

The air outlet 25 is a slit-shaped opening formed on the lower surface of the top nozzle 24 . That is, the air outlet 25 is provided facing downward. Similarly to the air outlet 15, the air outlet 25 blows out the air flowing into the top nozzle 24 from the top board 6 side toward the floor board 4. One blower outlet 25 is provided for one top nozzle 24. The air outlets 25 belonging to each top nozzle 24 are arranged on the same plane when a certain horizontal plane is imagined. That is, in the living room space 3a, the air outlets 25 belonging to each top nozzle 24 are arranged at the same height from the floorboard 4.

The chamber 28 is a housing that connects the top nozzle 24 and the duct 29 in communication. The chamber 28 controls the flow of air (direction of airflow) toward the top nozzle 24 . More specifically, the top nozzle 24 is connected to the side surface of the chamber 28, and the duct 29 is connected to the bottom surface of the chamber 28. The chamber 28 controls the direction in which the air flowing in from the duct 29 flows toward the top nozzle 24 . One chamber 28 is connected to one top nozzle 24 . That is, seven chambers 28, the same number as the top nozzles 24, are arranged. Chamber 28 is arranged above inner panel 7 . Note that the shape of the chamber 28 is not particularly specified as long as the top nozzle 24 and the duct 29 can be connected in communication.

The duct 29 is a ventilation pipe for conveying air sucked into the blower 30 from the air supply port 21 to the chamber 28. The duct 29 is connected to the chamber 28 at one end and to the blower 30 at the other end. One duct 29 is arranged for each chamber 28 . That is, seven ducts 29 are arranged. For example, a known flexible duct can be used as the duct 29.

The blower 30 is a device that generates an airflow from the air supply port 21 through the duct 29 and the chamber 28 toward the blowout port 25 of the top nozzle 24 . As with the blower 20, the blower 30 can be, for example, a known turbo machine such as a centrifugal blower. One blower 30 is connected to one top nozzle 24. That is, seven blowers 30, the same number as the top nozzles 24, are arranged. More specifically, as shown in FIG. 5, the blower 30 includes a first blower 30a that blows air to the first top nozzle 24a, a second blower 30b that blows air to the second top nozzle 24b, and a third blower 30b that blows air to the second top nozzle 24b. A third blower 30c blows air to the top nozzle 24c, a fourth blower 30d blows air to the fourth top nozzle 24d, a fifth blower 30e blows air to the fifth top nozzle 24e, and a sixth top nozzle. A sixth blower 30f blows air to the seventh top nozzle 24f, and a seventh blower 30g blows air to the seventh top nozzle 24g.

The first blower 30a generates a flow of air from the air supply port 21 toward the first top nozzle 24a at a position adjacent to the first side panel 5a, and directs the air sucked from the air supply port 21 to the first duct 29a and the first top nozzle 24a. It is supplied to the first top nozzle 24a through the first chamber 28a.

Although a description of the second blower 30b to seventh blower 30g will be omitted, the seven blowers 30 (first blower 30a to seventh blower 30g) are each equipped with a mechanism that can adjust the air volume (air supply amount). . Although the details will be described later, in this embodiment, the seven blowers 30 have the same air volume as the third blower 30c to the fifth blower 30e, the first blower 30a, the second blower 30b, the sixth blower 30f, and the third blower 30c to the fifth blower 30e. The amount of air blown is controlled to be greater than the amount of air blown by 30g of air blower.

As described above, the blower device 1a is configured.

Note that, like the blower device 1, the blower device 1a is equipped with a filter for collecting dust and the like contained outside the booth 2 on the air path through which the airflow blown out from the blower outlet 25 of the top nozzle 24 passes. Good too. Moreover, when the air blower 1a is equipped with a filter, it is preferable that the air blower 30 is arrange|positioned on the downstream side with respect to a filter.

Next, with reference to FIGS. 6 and 7, the flow of airflow generated by the operation of the blower device 1a will be described.

As shown in FIG. 6, when the blower 30 starts operating, the air outside the booth 2 becomes an airflow AF12 and is sucked in from the air supply port 21. Air (airflow AF12) sucked in from the air supply port 21 flows inside the duct 29 as an airflow AF13 and is conveyed to the chamber 28.

The air (airflow AF13) conveyed to the chamber 28 is moved by the chamber 28 from the vertical direction (from the floorboard 4 side to the topboard 6 side) to the horizontal direction (from the third side panel 5c side to the fourth side). The direction of the flow is switched to the direction (toward the panel 5d). That is, the air conveyed to the chamber 28 is controlled by the flow of air toward the top nozzle 24 and flows inside the top nozzle 24 as the airflow AF14.

The air (airflow AF14) that has flowed into the top nozzle 24 is blown out from the outlet 25 downward, that is, toward the floorboard 4, as an airflow AF15.

The air (airflow AF15) blown out from the outlet 25 flows inside the living room space 3a towards the floorboard 4 as an airflow AF31 which is a surface airflow by combining airflow AF21a, airflow AF21b, and airflow AF21c which are induced airflows to be described later. It will be distributed. Details of the airflow AF 31 will be described later.

Thereafter, a part of the air (airflow AF31) that reaches the floorboard 4 is exhausted to the outside of the booth 2 from the exhaust port 22 as an airflow AF31a. In addition, as in the case of the blower 1 (see FIG. 3), the other part of the air (airflow AF31) that reaches the floorboard 4 is reflected by the floorboard 4 and becomes airflow AF31b, and the side panel 5 ( The air flows along the first side panel 5a or the second side panel 5b) as a return air flow AF41 toward the top board 6. Further, a part of the air (airflow AF31) that reaches the top surface of the desk 12 is also reflected on the top surface of the desk 12 and becomes airflow AF31c. The airflow AF31c flows as a part of the airflow AF41, which is an upward airflow (reflux airflow) toward the top board 6 along the side panel 5 (the first side panel 5a or the second side panel 5b).

In this manner, also in this embodiment, as the airflow AF31 flows as a downward airflow in the central region of the living room space 3a, the airflow AF41 flows as a return airflow in the end region of the living room space 3a. That is, in the end region of the living room space 3a, a "reflux air path" is formed in which the airflow AF41 flows along the vicinity of the surface of the side panel 5 (the first side panel 5a or the second side panel 5b).

Next, the airflow AF31, which is a surface airflow, will be explained. In this embodiment, when the operation of the blower device 1a is started, the first blower 30a, the second blower 30b, the sixth blower 30f, and the seventh blower 30g all have an air flow rate of 50 m ³ /h. The third blower 30c, the fourth blower 30d, and the fifth blower 30e are all controlled to operate at an air flow rate of 100 m ³ /h.

As shown in FIG. 7, when the first blower 30a, second blower 30b, sixth blower 30f, and seventh blower 30g operate, air from outside the booth 2 is sucked in from the air supply port 21, and the air from the first top nozzle 24a is Airflow AF15a is blown out from the first outlet 25a, the second outlet 25b of the second top nozzle 24b, the sixth outlet 25f of the sixth top nozzle 24f, and the seventh outlet 25g of the seventh top nozzle 24g, respectively. . On the other hand, when the third blower 30c, the fourth blower 30d, and the fifth blower 30e operate, air from outside the booth 2 is sucked through the air supply port 21, and the third blower 25c of the third top nozzle 24c and the fourth top nozzle The airflow AF15b is blown out from the fourth outlet 25d of the top nozzle 24d and the fifth outlet 25e of the fifth top nozzle 24e.

Hereinafter, the first top nozzle 24a adjacent to the second side panel 5b and the second top nozzle 24b adjacent to the first top nozzle 24a will be referred to as a "first group of top nozzles," and this first group of top nozzles will be referred to as a "first group of top nozzles." The third top nozzle 24c and fourth top nozzle 24d adjacent to each other are referred to as a "second group of top nozzles." Note that the seventh top nozzle 24g adjacent to the first side panel 5a and the sixth top nozzle 24f adjacent to this seventh top nozzle 24g are also referred to as "first group of top nozzles", and this first group of top nozzles The adjacent fifth top nozzle 24e and fourth top nozzle 24d are also referred to as a "second group of top nozzles."

The air volume of the air flow AF 15a is approximately 50 m 3 /h corresponding to the air volume of the first fan 30a, the second fan 30b, the sixth fan 30f, and the seventh fan 30g, and the air volume of the air flow AF 15b is approximately 50 m ³ /h, corresponding to the air volume of the first fan 30a, the second fan 30b, the sixth fan 30f, and the seventh fan 30g. 30c, the fourth blower 30d, and the fifth blower 30e each have a blowing volume of approximately 100 m ³ /h.

When the airflow AF15a and the airflow AF15b are blown out into the living room space 3a, the air in the space around the airflow AF15a and the airflow AF15b is attracted to the airflow AF15a and the airflow AF15b, and the airflow of the adjacent top nozzles 24 is A negative pressure region S1a, a negative pressure region S1b, and a negative pressure region S2 are respectively generated in the space between them. More specifically, a negative pressure area S1a is generated in the space between the first top nozzle 24a and the second top nozzle 24b, and a negative pressure area S1b is generated in the space between the second top nozzle 24b and the third top nozzle 24c. A negative pressure region S2 is generated in the space between the third top nozzle 24c and the fourth top nozzle 24d. Also, on the opposite side panel side, a negative pressure region S1a is generated in the space between the seventh top nozzle 24g and the sixth top nozzle 24f, and a negative pressure region S1a is generated in the space between the sixth top nozzle 24f and the fifth top nozzle 24e. A negative pressure area S1b is generated, and a negative pressure area S2 is generated in the space between the fifth top nozzle 24e and the fourth top nozzle 24d. Here, negative pressure (also called negative pressure) refers to a state where the atmospheric pressure is lower than the surroundings. In other words, the negative pressure area S1a, the negative pressure area S1b, and the negative pressure area S2 are areas where the atmospheric pressure is lower than the surrounding area.

When the negative pressure region S1a, the negative pressure region S1b, and the negative pressure region S2 are generated, a force that tries to eliminate the negative pressure acts, and the negative pressure region S1a, the negative pressure region S1b, Air flows (air flow AF21a, air flow AF21b, and air flow AF21c) are generated to eliminate each of the negative pressure region S2. More specifically, the airflow caused by the negative pressure area S1a is the airflow AF21a, and the airflow caused by the negative pressure area S1b is the airflow AF21b, which is caused by the negative pressure area S2. The air flow is air flow AF21c. The airflow AF21a, the airflow AF21b, and the airflow AF21c are also called induced airflows. Further, the space between the top nozzles 24 through which the airflow AF 21a, airflow AF21b, or airflow AF21c flows is also called an induced air path.

In addition, in a limited space such as the living room space 3a, the air in the space around the airflow AF21a, the airflow AF21b, and the airflow AF21c (the space near the inlet of the induced air path) is It is attracted by the AF 21c, and a negative pressure region S3 is generated in the space between the top nozzle 24 and the top board 6. As a result, an air flow (air flow AF41) for eliminating the negative pressure region S3 is generated. In other words, a return flow path is formed that is a path for introducing air attracted to the induced air path via the negative pressure region S3, and air is attracted to the induced air path. Note that since the air volume relationship between the airflow AF15a and the airflow AF15b is airflow AF15b>airflow AF15a, the magnitude of the negative pressure is negative pressure area S2>negative pressure area S1b>negative pressure area S1a. Therefore, the air volume relationship among the airflow AF21a, the airflow AF21b, and the airflow AF21c is airflow AF21c>airflow AF21b>airflow AF21a.

The airflow AF15a, the airflow AF15b, the airflow AF21a, the airflow AF21b, and the airflow AF21c are all combined to form an airflow AF31, which is a surface airflow, in the living room space 3a.

On the other hand, the airflow AF41 is air directed toward the space between the top nozzle 14 and the top board 6, but the airflow direction is different from the airflow AF15a, the airflow AF15b, the airflow AF21a, the airflow AF21b, and the airflow AF21c. , the airflow is directed from the floorboard 4 side toward the topboard 6 (reflux airflow). Therefore, the airflow AF41 disturbs the flow of the airflow AF15a adjacent to the airflow AF41 (the flow of the airflow AF15a from the first top nozzle 24a or the flow of the airflow AF15a from the seventh top nozzle 24g), and causes the airflow to move straight. It can be a factor that hinders sex. However, in this embodiment, since the air volume relationship between the airflow AF15a and the airflow AF15b is "airflow AF15b>airflow AF15a", the airflow AF15a is attracted to the airflow AF15b adjacent to the airflow AF15a. More specifically, the airflow AF15a from the second top nozzle 24b is attracted to the airflow AF15b from the third top nozzle 24c, and under this influence, the airflow AF15a from the first top nozzle 24a is also attracted. On the other hand, the airflow AF15a from the sixth top nozzle 24f is attracted to the airflow AF15b from the fifth top nozzle 24e, and under this influence, the airflow AF15a from the seventh top nozzle 24g is also attracted. As a result, the airflow AF15a from the first top nozzle 24a and the airflow AF15a from the seventh top nozzle 24g are less susceptible to the influence of each airflow AF41, so that the airflow AF31 as a whole is a linear airflow in the blowing direction. A certain surface airflow can be maintained.

As described above, according to the blower device 1a according to the second embodiment, the following effects can be enjoyed.

(1a) The air blower 1a includes a living space 3 (living space 3a) formed by a floorboard 4, a side panel 5, and a top board 6, and an air supply port 21 for supplying air to the living space 3a. and an exhaust port 22 for discharging air from the living room space 3a. The blower device 1a includes seven top nozzles 24 that are arranged offset from the top board 6 and have slit-shaped outlets 25 that blow out air flowing from the top board 6 side toward the floorboard 4 side, and an air supply port. A blower 30 for blowing air sucked in from 21 to a top nozzle 24 is provided. The seven top nozzles 24 are arranged in parallel with a gap between them so that the air outlet 25 is located on the same plane, and includes the top nozzle 24 adjacent to the side panel 5 among the seven top nozzles 24. When the top nozzles 24 located on the side panel 5 side are defined as a first group of top nozzles, and the top nozzles 24 including at least the top nozzles 24 adjacent to the first group of top nozzles are defined as a second group of top nozzles, at least the second group of top nozzles The volume of air blown out from the outlet ports 25 of each group is controlled to be larger than the volume of air blown out from the outlet ports 25 of the first group of top nozzles.

According to this configuration, the air flow from the first group of top nozzles toward the floorboard 4 side is attracted by the air flow from the second group of top nozzles, which has a large air volume, toward the floorboard 4 side, and the air flow from the first group of top nozzles toward the floorboard 4 side Collision with the air flow caused by the return air flow (air flow AF41) returning from the floorboard 4 side to the top board 6 side along the side panel 5 adjacent to the side panel 5 can be suppressed. As a result, a return flow path is secured in the limited living space 3a, which is a path for introducing the air attracted to the induced air path, and the air is stably attracted to the induced air path, so that the air is directed in the blowing direction. It is possible to send airflow with high straightness along the line. In other words, by controlling the air volume (air supply amount) from the seven top nozzles 24, a return flow path is secured in the narrow living space 3 (for example, a living space where an individual can stay) that constitutes the booth 2. The blower device 1a can blow a highly straight airflow along the blowing direction.

Note that the first top nozzle 24a and the second top nozzle 24b, and the third top nozzle 24c and fourth top nozzle 24d correspond to the "first group of top nozzles" and the "second group of top nozzles" in the claims, respectively. However, the seventh top nozzle 24g and the sixth top nozzle 24f, as well as the fifth top nozzle 24e and the fourth top nozzle 24d, are also referred to as "first group of top nozzles" and "second group of top nozzles" in the claims, respectively. corresponds to Furthermore, the seven top nozzles 14 can enjoy the same effect as long as there are at least six or more top nozzles 24.

(2a) In the blower device 1a, the booth 2 further includes a hollow space 3b that communicates with the living room space 3a, and an inner panel 7 that separates the living room space 3a and the hollow space 3b. The seven top nozzles 24 extend from the inner panel 7 toward the fourth side panel 5d facing the inner panel 7, and the hollow space 3b includes a chamber for controlling the flow of air toward the top nozzles 24. 28 , a duct 29 that communicates with the chamber 28 , and a blower 30 that generates an airflow from the air supply port 21 to the outlet 25 of the top nozzle 24 via the duct 29 and the chamber 28 . According to such a configuration, air is introduced into the top nozzle 24 from outside the booth 2 through the air supply port 21 while the main components of the blower 1a are hidden from the living room space 3a in the hollow space 3b. An air flow (plane air flow) along the blowing direction can be generated from the 24 blow-off ports 25.

(3a) In the blower device 1a, the blower 30 is provided for each of the seven top nozzles 24. By doing so, the amount of air blown out from the air outlet 25 of the top nozzle 24 can be easily adjusted for each of the seven top nozzles 24.

(4a) In the blower 1a, the seven top nozzles 24 have a distance D between the first top nozzle 24a and the first side panel 5a adjacent to the first top nozzle 24a. It is arranged in the living room space 3a so as to be larger than the distance d between the second top nozzle 24b and the second top nozzle 24b and the third top nozzle 24c. By doing this, the recirculation path through which the recirculation airflow (airflow AF41) flows can be more reliably secured, so that the air blown out from the outlet 25 of the top nozzle 24 can reach the target location as a surface airflow. This can be further promoted.

The present invention has been described above based on the embodiments. Those skilled in the art will understand that these embodiments are merely illustrative, and that various modifications can be made to the combinations of their constituent elements or processing processes, and that such modifications are also within the scope of the present invention. By the way.

Although the blower 1 according to the first embodiment has been described using four top nozzles 14, the present invention is not limited to this. For example, three top nozzles or five or more top nozzles may be used to generate a surface airflow. Even in such a case, among three or five or more top nozzles, the top nozzle adjacent to the side panel is called the first top nozzle, and the top nozzle adjacent to the first top nozzle is called the second top nozzle. The amount of air blown out from the outlet of the second top nozzle may be controlled to be larger than the amount of air blown out from the outlet of the first top nozzle. By doing so, the above-mentioned effects can be enjoyed.

In addition, when using five or more top nozzles, if the top nozzles other than the first top nozzle and the second top nozzle among the five or more top nozzles are referred to as the third top nozzle, the third top nozzle The volume of air blown out from the outlet may be controlled to be the same as the volume of air blown out from the outlet of the second top nozzle, or may be controlled to be greater than the volume of air blown out from the outlet of the second top nozzle. It may be controlled as follows. By doing so, the air (airflow) blown out from the outlet of the third top nozzle can be made to reach the target location as a surface airflow.

Further, in the blower device 1 according to the first embodiment, a blower is installed for each of the four top nozzles 14, but the present invention is not limited to this. For example, blowers set to the same airflow rate may be installed in common. Alternatively, one blower may be used for the four top nozzles, and a damper function may be provided to the chamber 18 to adjust the amount of air blown to each top nozzle.

Further, although the blower 1a according to the first embodiment has been described using seven top nozzles 24, the present invention is not limited to this. For example, six top nozzles or eight or more top nozzles may be used to generate a surface airflow. Even in such a case, among six or eight or more top nozzles, the top nozzles located on the side panel side, including the top nozzle adjacent to the side panel, are considered the first group of top nozzles, and the top nozzles in the first group of top nozzles are When referred to as a second group of top nozzles that includes at least adjacent top nozzles, the volume of air blown out from the outlets of the top nozzles included in the second group of top nozzles is equal to It may be controlled to be larger than the volume of air blown out. By doing so, the above-mentioned effects can be enjoyed.

Further, in the air blower 1a according to the second embodiment, the air volume of the first top nozzle 24a and the second top nozzle 24b included in the first group of top nozzles is set to be the same "about 50 m ³ /h", but this is not limited. I can't. For example, in the first group of top nozzles, the amount of air blown out from the outlet of the top nozzle may be controlled to increase as it approaches the second group of top nozzles. Specifically, when the total air volume of the first group of top nozzles is the same, the volume of air blown out from the first top nozzle 24a is set to "approximately 40 m ³ /h", and the volume of air blown out from the second top nozzle 24b is set to "approximately 40 m 3 /h". It may be approximately 60 m ³ /h. By doing this, the airflow AF15a blown out from the top nozzle 24 (first top nozzle 24a) adjacent to the side panel 5 is changed from the airflow AF15a blown out from the top nozzle 24 (second top nozzle 24b) adjacent to this. Since it is also attracted by the AF15a, the airflow AF15a from the first top nozzle 24a collides with the airflow caused by the return airflow (airflow AF41) returning from the floorboard 4 side to the topboard 6 side along the side panel 5. This can be further suppressed. In other words, the airflow AF15a from the first top nozzle 24a becomes less susceptible to the influence of the airflow AF41.

Further, although the blower device 1a according to the second embodiment has been described with a configuration in which the first group of top nozzles includes two top nozzles 24, the present invention is not limited to this. For example, the influence (attracting effect) of the airflow AF 15b from the top nozzles 24 of the second group of top nozzles adjacent to the first group of top nozzles may be applied to at least the top nozzles 24 adjacent to the side panel 5 (for example, the first top nozzles 24a). In the case where the airflow reaches the AF 15a from the top nozzle, the first group of top nozzles may include three or more top nozzles 24. Specifically, so that the influence of the airflow AF15b extends to the airflow AF15a from the top nozzle 24 adjacent to the side panel 5, the distance d between the top nozzles 24 arranged in parallel may be narrowed, or the distance between the airflow AF15b and the airflow AF15a may be reduced. By increasing the difference in the amount of air blown between them, it is possible to configure the first group of top nozzles 24 to include three or more top nozzles 24.

Further, in each embodiment, the living room space 3a is a narrow space in which an individual can stay, but the present invention is not limited to this. For example, the room space 3a may be a space of 1 m ² or more and 25 m ² or less, and may be not only a private booth but also a conference room where a plurality of people can stay.

The blower device according to the present invention secures a return flow path in a living room space and is capable of blowing a highly straight air flow along the blowing direction, so it is useful as a blower device installed in a narrow living room space where an individual can stay. It is.

1 Air blower 1a Air blower 2 Booth 3 Living space 3a Living space 3b Hollow space 4 Floor board 5a 1st side panel 5b 2nd side panel 5c 3rd side panel 5d 4th side panel 6 Top board 7 Inner panel 11 Door 12 Desk 13 Chair 14 Top nozzle 14a First top nozzle 14b Second top nozzle 14c Third top nozzle 14d Fourth top nozzle 15 Outlet 15a First outlet 15b Second outlet 15c Third outlet 15d Fourth outlet 18 Chamber 18a First chamber 18b Second chamber 18c Third chamber 18d Fourth chamber 19 Duct 19a First duct 19b Second duct 19c Third duct 19d Fourth duct 20 Blower 20a First blower 20b Second blower 20c Third blower 20d 4 Blower 21 Air supply port 22 Exhaust port 24 Top nozzle 24a First top nozzle 24b Second top nozzle 24c Third top nozzle 24d Fourth top nozzle 24e Fifth top nozzle 24f Sixth top nozzle 24g Seventh top nozzle 25 Air outlet 25a First outlet 25b Second outlet 25c Third outlet 25d Fourth outlet 25e Fifth outlet 25f Sixth outlet 25g Seventh outlet 28 Chamber 28a First chamber 28b Second chamber 28c Third chamber 28d Fourth chamber 28e Fifth chamber 28f Sixth chamber 28g Seventh chamber 29 Duct 29a First duct 29b Second duct 29c Third duct 29d Fourth duct 29e Fifth duct 29f Sixth duct 29g Seventh duct 30 Blower 30a First Blower 30b Second blower 30c Third blower 30d Fourth blower 30e Fifth blower 30f Sixth blower 30g Seventh blower

Claims (6)

It has a living space formed by a floorboard, a side panel, and a top board, an air supply port for supplying air to the living space, and an exhaust port for discharging air from the living space. A blower device installed in a booth,
three or more top nozzles that are arranged offset from the top board and have slit-shaped outlets that blow out air flowing from the top board side toward the floor board side;
a blower that blows air sucked in from the air supply port to the top nozzle;
Equipped with
The three or more top nozzles are arranged in parallel with a gap so that the blow-off ports are located on the same surface,
Among the three or more top nozzles, when the top nozzle adjacent to the side panel is a first top nozzle and the top nozzle adjacent to the first top nozzle is a second top nozzle, at least the second A blower device, wherein the volume of air blown out from the outlet of the top nozzle is controlled to be larger than the volume of air blown out from the outlet of the first top nozzle. The booth further includes a hollow space communicating with the living space, and an inner panel separating the living space and the hollow space,
The three or more top nozzles extend from the inner panel toward the side panel facing the inner panel,
In the hollow space,
a chamber for controlling air flow toward the top nozzle;
a duct communicating with the chamber;
The blower device according to claim 1, further comprising: the blower that generates an airflow from the air supply port through the duct and the chamber toward the blowout port of the top nozzle. The blower device according to claim 2, wherein the blower is provided for each of the three or more top nozzles. In the three or more top nozzles, the distance between the first top nozzle and the side panel adjacent to the first top nozzle is greater than the distance between the first top nozzle and the second top nozzle. The air blowing device according to claim 1, wherein the air blowing device is arranged in the living room space so that the size of the air blowing device increases. It has a living space formed by a floorboard, a side panel, and a top board, an air supply port for supplying air to the living space, and an exhaust port for discharging air from the living space. A blower device installed in a booth,
six or more top nozzles that are arranged offset from the top board and have slit-shaped air outlets that blow out air flowing from the top board side toward the floor board side;
a blower that blows air sucked in from the air supply port to the top nozzle;
Equipped with
The six or more top nozzles are arranged in parallel with a gap so that the blowout ports are located on the same surface,
Among the six or more top nozzles, the top nozzles located on the side panel side including the top nozzle adjacent to the side panel are defined as a first group of top nozzles, and the top nozzles adjacent to the first group of top nozzles When the top nozzles including at least nozzles are set as a second group of top nozzles, the volume of air blown out from the outlets of the second group of top nozzles is greater than the volume of air blown out from the outlets of the first group of top nozzles. The air blower is controlled so that it also increases in size. The blower device according to claim 5, wherein the first group of top nozzles is controlled such that the volume of air blown out from the outlet of the top nozzle increases as it approaches the second group of top nozzles.