WO2023210307A1

WO2023210307A1 - Air blowing system

Info

Publication number: WO2023210307A1
Application number: PCT/JP2023/014439
Authority: WO
Inventors: 祐司尾崎
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2022-04-25
Filing date: 2023-04-07
Publication date: 2023-11-02

Abstract

The present invention addresses the problem of providing an air blowing system with which it is possible to freely adjust the flow of air in an air-conditioned space. This air blowing system (1) comprises a plurality of air blowing devices (3) installed on the ceiling of an air-conditioned space (9). Each of the plurality of air blowing devices (3) has a housing (31), a straightening plate (32), and a driving mechanism (33). The housing (31) is formed in a box shape having an inner space (310), and has an intake port (31g) that feeds supply air into the inner space (310), an air blowing port (31h) for blowing out, as blowing air to the air-conditioned space (9), the supply air that has passed through the inner space (310), and a throttle part (31i) that narrows the inner space (310) toward the circumferential edge of the air blowing port (31h). The straightening plate (32) is disposed between the intake port (31g) and the air blowing port (31h). The driving mechanism (33) moves the straightening plate (32).

Description

ventilation system

The present disclosure relates to a ventilation system.

The air purifying device of Patent Document 1 includes a casing having an air inlet and an air outlet, and a guide plate is provided inside the casing. The guide plate is arranged approximately at the center of the casing, and a gap is provided between the guide plate and the peripheral plate of the casing to allow air to pass therethrough. Furthermore, a baffle plate is provided below the guide plate to cover the inner peripheral edge of the air outlet. The guide plate guides the air sent into the casing by the fan toward the circumferential plate and sends it toward the air outlet through the gap. An opening is formed at a position corresponding to the center of the mouth shape of the air outlet, and the baffle plate rectifies the flow of air toward the opening.

In recent years, there has been a need to adjust the flow of air within air-conditioned spaces.

Japanese Patent Application Publication No. 2006-112755

An object of the present disclosure is to provide a ventilation system that can freely adjust the flow of air within an air-conditioned space.

A ventilation system according to one aspect of the present disclosure includes a plurality of ventilation devices installed on the ceiling of an air-conditioned space. Each of the plurality of air blowers includes a housing, a current plate, and a drive mechanism. The casing is formed into a box shape having an internal space, and includes an intake port for feeding supply air into the internal space, and an intake port for blowing out the supply air that has passed through the internal space as blast air into the air-conditioned space. It has an air outlet and a constriction part that narrows the internal space toward the periphery of the air outlet. The baffle plate is arranged between the air inlet and the air outlet. The drive mechanism moves the current plate.

FIG. 1 is a block diagram showing the configuration of an air blowing system according to an embodiment. FIG. 2 is a perspective view showing the arrangement of a blower and an air conditioner included in the blower system. FIG. 3 is a perspective view showing the arrangement of a blower and an air conditioner included in the blower system. FIG. 4 is a side view showing a blower and an air conditioner included in the blower system. FIG. 5 is a perspective view showing a blower device included in the blower system. FIG. 6 is a perspective view showing a blower device included in the blower system. FIG. 7 is a plan view showing a rectifying plate included in the blower device. FIG. 8 is a partially cutaway side view showing the mounting structure of the rectifying plate same as above. FIG. 9A is a cross-sectional view showing the operation of the blower device as described above. FIG. 9B is a cross-sectional view showing another operation of the blower device as described above. FIG. 10 is a perspective view illustrating the stirring mode of the air blowing system. FIG. 11 is a perspective view showing the arrangement of a human sensor in the air blowing system. FIG. 12 is a perspective view illustrating the spot mode of the air blowing system. FIG. 13 is a block diagram showing the configuration of the ventilation system of the first modification. FIG. 14 is a block diagram showing the configuration of a second modified example of the ventilation system.

The present embodiment generally relates to a ventilation system. More specifically, the present disclosure relates to a blower system that includes a plurality of blowers.

Note that the embodiment described below is only an example of the embodiment of the present disclosure. The present disclosure is not limited to the following embodiments, and various changes can be made depending on the design etc. as long as the effects of the present disclosure can be achieved.

In addition, in the following description, unless otherwise specified, the X-axis, Y-axis, and Z-axis that are orthogonal to each other are defined in FIG. 5. For convenience, one of the two directions along the X axis is defined as the right direction, and the other direction is defined as the left direction. Furthermore, one direction out of both directions along the Y axis is defined as the front direction, and the other direction is defined as the rear direction. Furthermore, one direction among the two directions along the Z-axis is defined as an upward direction, and the other direction is defined as a downward direction. Note that the directions described above do not limit the actual usage of the ventilation system, but are used to facilitate understanding of the ventilation system.

(Embodiment)
(1) Outline of ventilation system FIG. 1 shows a block configuration of a ventilation system 1 of this embodiment. The ventilation system 1 is used, for example, in facilities such as office buildings, offices, stores, factories, or commercial facilities. Moreover, the ventilation system 1 may be used in a residential unit of an apartment complex, a detached house, or the like.

The ventilation system 1 includes a plurality of (four in FIG. 1) ventilation devices 3. The plurality of blower devices 3 are installed on the ceiling 91 of the air-conditioned space 9, as shown in FIGS. 2 and 3. Each of the plurality of air blowers 3 includes a housing 31, a rectifying plate 32, and a drive mechanism 33, as shown in FIG. The casing 31 is formed in a box shape with an internal space 310, and includes an intake port 31g for feeding supply air A11 (see FIG. 4) into the internal space 310, and a blowing air for supply air A11 that has passed through the internal space 310. A1 (see FIG. 4) includes an air outlet 31h for blowing air into the air conditioned space 9, and a constriction part 31i that narrows the internal space 310 toward the periphery of the air outlet 31h. The current plate 32 is arranged between the intake port 31g and the ventilation port 31h. The drive mechanism 33 moves the current plate 32.

The above-mentioned blower device 3 can make the blowing air A1 (see FIGS. 9A and 9B) a directional airflow by the rectifying plate 32 arranged between the air intake port 31g and the air blowing port 31h. Furthermore, the blowing device 3 can control the directivity of the blown air A1 by moving the rectifying plate 32 by the drive mechanism 33. Therefore, the ventilation system 1 including the plurality of ventilation devices 3 can freely adjust the flow of air within the air-conditioned space 9.

(2) Configuration of ventilation system As shown in FIGS. 1 to 3, the ventilation system 1 includes an air conditioner 2, four ventilation devices 3, a control device 4, a duct 5, a temperature detection section 6, and a person detection section 7. Equipped with

The four blowers 3 are installed on the ceiling 91 of the air-conditioned space 9, as shown in FIGS. 2 and 3. The air-conditioned space 9 has a rectangular box shape. The four blowers 3 are installed on the ceiling 91 at locations corresponding to the four vertices of a rectangle. That is, the four air blowers 3 are installed on the ceiling 91 so as not to be lined up on the same straight line. As shown in FIG. 4, the blower device 3 is attached to the ceiling 91 through the ceiling 91, and blows air A1 downward from the ceiling 91. In addition, when distinguishing the four air blowers 3, each of the four air blowers 3 is called

air blowers

3A, 3B, 3C, and 3D. In FIGS. 2 and 3, the

blowers

3A, 3B, 3C, and 3D are arranged counterclockwise in the order of 3A, 3B, 3C, and 3D when viewed from above.

The air conditioner 2 is installed on the ceiling 91 of the air conditioned space 9, as shown in FIGS. 2 and 3. The air conditioner 2 is installed on the ceiling 91 at a location surrounded by the four blowers 3. In FIGS. 2 and 3, the air conditioner 2 is arranged closer to the

blowers

3C and 3D than the

blowers

3A and 3B. The air conditioner 2 is attached to the ceiling 91 by penetrating the ceiling 91 as shown in FIG. 4, sucks air A2 in the air conditioned space 9, and supplies conditioned air with the temperature of the sucked air A2 adjusted to supply air A11. , and sends out the supply air A11 to the duct 5.

As shown in FIG. 2, the duct 5 is arranged in an attic space 92 above a ceiling 91. The air conditioner 2 and the blower 3 are connected to each other via a duct 5. The duct 5 has a cylindrical shape, and the supply air A11 flows through the duct 5. Each of the four blower devices 3 is connected to a duct 5, is supplied with supply air A11 from the duct 5, and blows out the supply air A11 that has passed through the internal space 310 into the air-conditioned space 9 as blast air A1.

The control device 4 adjusts the flow of air within the air-conditioned space 9 by individually controlling the four blowers 3. For example, the control device 4 controls the blower device 3 based on the detection results of the temperature detection section 6 and the person detection section 7.

(2.1) Air blower The air blower 3 includes a housing 31, a rectifying plate 32, and a drive mechanism 33, as shown in FIGS. 4 to 8. The drive mechanism 33 is provided in the housing 31, and the rectifying plate 32 is movably supported by the drive mechanism 33.

(2.1.1) Housing The housing 31 is formed into a hollow rectangular box shape mainly using a galvanized steel plate, and has a left surface (side surface) 31a, a right surface (side surface) 31b, a front surface (side surface) 31c, a rear surface ( A side surface) 31d, an upper end surface (first end surface) 31e, and a lower end surface (second end surface) 31f. The housing 31 has an internal space 310 surrounded by a left surface 31a, a right surface 31b, a front surface 31c, a rear surface 31d, an upper end surface 31e, and a lower end surface 31f. Note that the left surface 31a and the right surface 31b face each other in the left-right direction along the X-axis. The front surface 31c and the rear surface 31d face each other in the front-rear direction along the Y-axis. The upper end surface 31e and the lower end surface 31f are vertically opposed to each other along the Z-axis.

A cylindrical intake port 31g is provided at the center of the upper end surface 31e. The upper end of the intake port 31g is connected to the duct 5, and the lower end of the intake port 31g is spatially continuous with the internal space 310. Supply air A11 (see FIG. 4) sent from the air conditioner 2 to the duct 5 blows out from above into the internal space 310 of the housing 31 through the intake port 31g.

A rectangular opening is formed in the lower end surface 31f as an air outlet 31h. The air outlet 31h is a rectangular plane along the XY plane (a plane defined by the X axis and the Y axis), and the axial direction of the air outlet 31h is along the Z axis. A flange portion 31j that constitutes a constriction portion 31i is formed at the periphery of the air outlet 31h. The throttle part 31i narrows the portion of the internal space 310 on the side of the air outlet 31h so that the inner space 310 is narrowed toward the periphery of the air outlet 31h. Alternatively, the throttle portion 31i expands the internal space 310 from the periphery of the air outlet 31h to the outside of the air outlet 31h. The flange portion 31j, which is an example of the throttle portion 31i, extends in a flange shape along the XY plane from the lower ends of the left surface 31a, right surface 31b, front surface 31c, and rear surface 31d toward the air outlet 31h. In other words, the lower end surface 31f includes a flange portion 31j that serves as a constriction portion 31i and extends from the periphery of the air outlet 31h to the left surface 31a, right surface 31b, front surface 31c, and rear surface 31d.

In this embodiment, it is preferable that the left surface 31a, right surface 31b, front surface 31c, rear surface 31d, and flange portion 31j of the housing 31 are constructed of a single galvanized steel plate processed by sheet metal processing. Further, the left surface 31a, right surface 31b, front surface 31c, rear surface 31d, upper end surface 31e, and flange portion 31j of the housing 31 may be made of a single galvanized steel plate processed by sheet metal processing.

(2.1.2) Drive Mechanism The drive mechanism 33 includes an electric actuator 33a and a support guide 33b.

The electric actuator 33a is attached to the front side of the upper end surface 31e of the housing 31. The electric actuator 33a includes an electric motor, a ball screw extending left and right along the X-axis, a screw nut fitted into the ball screw, and a rod attached to the screw nut. The rotational force of the electric motor is transmitted to the ball screw, and the ball screw rotates about the axis of the ball screw as the rotation axis. The screw nut moves to the left along the X-axis when the ball screw rotates in one direction, and moves to the right along the X-axis when the ball screw rotates in the other direction. A rod is attached to the screw nut, and like the screw nut, the rod also moves along the X axis in accordance with the rotation of the ball screw.

An opening is formed in the upper end surface 31e of the housing 31 and extends along the X-axis, facing the electric actuator 33a. The upper ends of two rod-shaped supports, a first support and a second support, are connected to the rod of the electric actuator 33a. The lower ends of the first support and the second support are inserted into the internal space 310 through the opening in the upper end surface 31e and attached to the rectifying plate 32. For example, in FIG. 8, an opening 31k is formed on the upper end surface 31e of the housing 31 along the X axis. The first support 33c is inserted through the opening 31k, the upper end of the first support 33c is connected to the rod of the electric actuator 33a, and the lower end of the first support 33c is attached to the rectifying plate 32. A second support (not shown) is also attached to the current plate 32 in the same way as the first support 33c.

The support guide 33b is attached to the rear side of the upper end surface 31e of the housing 31. The support guide 33b includes a linear rail and a slider attached to the rail. The rail is attached so as to extend in the left-right direction along the X-axis. The slider linearly moves left and right along the rail. That is, the direction in which the rail extends is the same as the direction in which the electric actuator 33a is displaced. An opening is formed in the upper end surface 31e of the housing 31 so as to face the support guide 33b and extend along the X-axis. The upper end of a third support, which is one rod-shaped support, is connected to the slider of the support guide 33b. The lower end of the third support is inserted into the internal space 310 through the opening in the upper end surface 31e, and is attached to the current plate 32. A third support (not shown) is also attached to the current plate 32 in the same way as the first support 33c (see FIG. 8).

(2.1.3) Current Plate The current plate 32 is formed into a rectangular plate shape by resin molding made of polypropylene.

As shown in FIG. 7, the current plate 32 includes a first surface 32a and a second surface 32b facing each other in the thickness direction, the first surface 32a facing the upper end surface 31e, and the second surface 32b facing the lower end surface 31f. They are arranged in the internal space 310 so as to face each other. On the front side of the current plate 32, two

circular insertion holes

32c and 32d are formed side by side in the left-right direction. On the rear side of the current plate 32, one circular insertion hole 32e is formed in the middle in the left-right direction.

Then, the lower end of the first support body 33c of the electric actuator 33a contacts the first surface 32a of the current plate 32 so as to face the insertion hole 32c. The lower end of the second support body of the electric actuator 33a contacts the first surface 32a of the current plate 32 so as to face the insertion hole 32d. Further, the lower end of the third support member of the support guide 33b contacts the first surface 32a of the current plate 32 so as to face the insertion hole 32e. A screw hole is formed along the Z-axis at the lower end of each of the first to third supports, and three screws 35 (see FIG. 6) are inserted into the insertion holes 32c to 32e below the rectifying plate 32 ( from the second surface 32b side) and screwed into the respective screw holes of the first to third supports. As a result, the heads 35a of the screws 35 are locked to the second surface 32b, and the current plate 32 is sandwiched between the heads 35a of the three screws 35 and the lower ends of the first to third supports. , fixed to the first to third supports.

For example, in FIG. 8, the first support 33c is inserted through the opening 31k, and the upper end of the first support 33c is connected to the rod of the electric actuator 33a. The lower end of the first support body 33c is in contact with the first surface 32a of the current plate 32 so as to face the insertion hole 32c. Then, the screw 35 is inserted into the insertion hole 32c from below (the second surface 32b side) of the rectifying plate 32, and is screwed into the screw hole of the first support body 33c. As a result, the current plate 32 is sandwiched between the head 35a of the screw 35 and the lower end of the first support 33c.

Further, the lower end of the second support is in contact with the first surface 32a of the current plate 32 so as to face the insertion hole 32d, and the lower end of the third support is in contact with the first surface 32a of the current plate 32 so as to face the insertion hole 32e. The screws 35 come into contact with the first surface 32a and are screwed into respective screw holes of the second support body and the third support body (see FIG. 6).

Therefore, when the rod of the electric actuator 33a moves along the X-axis, the current plate 32 similarly slides along the X-axis. That is, the current plate 32 is slid by the drive mechanism 33 in a direction intersecting the Z-axis along the normal direction of the air outlet 31h.

(2.1.4) Installation of the blower device As shown in FIG. 4, the blower device 3 is embedded in the mounting hole 91a of the ceiling 91. As shown in FIGS. 5 and 6, two mounting brackets 34 arranged along the Y axis are attached to each of the left surface 31a and right surface 31b of the housing 31. As shown in FIGS. 5 and 6, two mounting brackets 34 arranged along the X axis are attached to each of the front surface 31c and the rear surface 31d. The mounting bracket 34 is made of metal such as aluminum or stainless steel and has an L shape, and is fixed to the back surface (upper surface) of the ceiling 91 in the attic space 92 with screws.

(2.1.5) Directivity of Blown Air As described above, the supply air A11 is supplied from the duct 5 to the internal space 310 of the housing 31 of the blower 3. From the air outlet 31h of the air blower 3, the supply air A11 that has passed through the internal space 310 is blown out downward as the air A1. Then, the drive mechanism 33 changes the sliding position of the rectifying plate 32, thereby adjusting the directivity of the blown air A1 blown out from the air outlet 31h.

Hereinafter, the directivity of the blown air A1 will be explained using FIGS. 9A and 9B. Note that the drive mechanism 33, mounting bracket 34, and screw 35 of the blower device 3 are omitted in FIGS. 9A and 9B.

In FIG. 9A, the sliding position of the baffle plate 32 is controlled to the center of the internal space 310. A gap is formed between the left end 32f of the current plate 32 and the left surface 31a of the housing 31, which constitutes the communication portion 311. Furthermore, a gap is formed between the right end 32g of the current plate 32 and the right surface 31b of the housing 31, which constitutes the communication portion 312. The width dimensions of the communicating

portions

311 and 312 along the X axis are the same. That is, a gap is formed on both the left and right sides of the rectifying plate 32 to connect the space on the first surface 32a side (the upper space of the housing 31) and the space on the second surface 32b side (the lower space of the housing 31). has been done. In this case, the supply air A11 supplied from the top to the bottom to the internal space 310 from the intake port 31g of the upper end surface 31e is directed to the leftward direction along the first surface 32a of the rectifying plate 32 and the rightward direction to the airflow F1. The airflow splits into the oncoming airflow F2. After passing through the communication portion 311 from above to below, the airflow F1 proceeds to the right between the second surface 32b of the current plate 32 and the flange portion 31j. After passing through the communication portion 312 from above to below, the airflow F2 advances to the left between the second surface 32b of the current plate 32 and the flange portion 31j. After the airflow F1 and the airflow F2 collide with each other, the airflow F1 and the airflow F2 become blown air A1 blown downward from the air outlet 31h. That is, the blown air A1 is blown out directly below the air outlet 31h. In other words, the directivity of the blown air A1 is generated directly below.

In FIG. 9B, the sliding position of the rectifier plate 32 is controlled to be biased to the right side of the internal space 310. A gap is formed between the left end 32f of the rectifying plate 32 and the left surface 31a of the housing 31, which constitutes the communication portion 313. Further, the right end 32g of the current plate 32 is in contact with the right surface 31b of the housing 31. That is, a gap is formed on the left side of the current plate 32 to connect the space on the first surface 32a side (the upper space of the casing 31) and the space on the second surface 32b side (the lower space of the casing 31). However, no gap is formed on the right side of the current plate 32 to connect the space on the first surface 32a side and the space on the second surface 32b side. In this case, the supply air A11 supplied from the top to the bottom into the internal space 310 from the intake port 31g of the upper end surface 31e becomes an airflow F3 heading leftward along the first surface 32a of the current plate 32. After passing through the communication portion 313 from above to below, the airflow F3 proceeds to the right between the second surface 32b of the current plate 32 and the flange portion 31j. The airflow F3 becomes the blown air A1 that is blown out diagonally to the lower right from the air outlet 31h. That is, the blown air A1 is blown out from the air outlet 31h in a diagonal lower right direction. In other words, the directivity of the blown air A1 is generated in the diagonal lower right direction.

Furthermore, when the sliding position of the baffle plate 32 is controlled to shift to the left side of the internal space 310, the blown air A1 is blown out from the air outlet 31h in the lower left diagonal direction, and the directivity of the blown air A1 is generated in the lower left diagonal direction. be done.

In this way, the drive mechanism 33 has communication parts (311, 313) that are gaps formed between the left side 31a of the housing 31 and the left end 32f of the current plate 32, and the communication portions (311, 313) that are gaps formed between the left side 31a of the housing 31 and the left end 32f of the current plate 32, and between the right side 31b of the housing 31 and the current plate. The rectifying plate 32 is slid so as to change the width dimension of the communication portion (312), which is the gap formed between the right end 32g of the rectifying plate 32 and the right end 32g of the rectifying plate 32. The air blower 3 can control the directivity of the air A1 blown out from the air outlet 31h by changing the sliding position of the rectifying plate 32. Moreover, the air blower 3 can easily control the directivity of the blown air A1 by adopting a simple configuration in which the rectifying plate 32 is slid.

Furthermore, by providing the flange 31j around the periphery of the air outlet 31h, the blower device 3 can make the blown air A1 blown out from the air outlet 31h into a directional airflow, compared to a case where the flange 31j is not provided. . That is, the collar portion 31j has a function of increasing the directivity of the blown air A1 blown out from the air outlet 31h, and the blower device 3 can concentrate the blown air A1 blown out from the air outlet 31h in a narrow range. In other words, the blown air A1 reaches only the targeted area and is less likely to diffuse into the surrounding area.

(2.2) Air Conditioner, Duct As shown in FIGS. 2 and 3, the air conditioner 2 is installed at a location surrounded by four blowers 3 on the ceiling 91. The air conditioner 2 is attached to the ceiling 91 by penetrating the ceiling 91, as shown in FIG. Then, the air conditioner 2 sucks the air A2 in the air conditioned space 9, generates conditioned air by adjusting the temperature of the sucked air A2, and sends the conditioned air to the duct 5 as supply air A11. The supply air A11 sent out to the duct 5 is supplied to the air blower 3, and the air blower 3 blows it out into the air-conditioned space 9 as the air A1. That is, the supply air A11 is sent into the internal space 310 from the air intake port 31g of the air blower 3, and is blown out from the air outlet 31h of the air blower 3 as the air A1. Thus, the air conditioner 2 has a function of cooling or heating the air conditioned space 9.

Therefore, the blowing system 1 can control the air-conditioned environment of the air-conditioned space 9 by blowing out the temperature-adjusted supply air A11 as the blowing air A1 into the air-conditioned space 9. Further, by connecting the blower device 3 to the duct 5, the supply air A11 can be easily supplied to the blower device 3.

The air conditioner 2 and each of the four blowers 3 are connected through a plurality of mutually independent ducts 5. The air conditioner 2 can adjust the amount of supply air A11 to each of the four blowers 3 for each blower 3. For example, it is possible to supply the supply air A11 to only one of the four blowers 3, or to make the supply amount of the supply air A11 to each of the four blowers 3 different from each other.

Note that the air conditioner 2 may generate, as the supply air A11, conditioned air in which not only the temperature but also humidity, cleanliness, fragrance, and at least one of the virus amount is adjusted.

(2.3) Temperature Detection Unit The temperature detection unit 6 detects the temperature distribution in the air-conditioned space 9. Specifically, the temperature detection unit 6 includes a plurality of temperature sensors 61 (see FIG. 3) attached to a plurality of locations within the air-conditioned space 9. The plurality of temperature sensors 61 are distributed and arranged in the upper and lower parts of the air-conditioned space 9, respectively. Then, the temperature detection unit 6 generates temperature distribution data including measurement data of temperatures measured by the plurality of temperature sensors 61. The temperature distribution data corresponds to the detection result of the temperature distribution in the air-conditioned space 9. The temperature detection unit 6 outputs temperature distribution data of the air-conditioned space 9 to the control device 4.

(2.4) Person Detection Unit The person detection unit 7 detects a person present in the air-conditioned space 9. Specifically, the human detection unit 7 includes a plurality of human sensors 71 (see FIG. 3) installed in the air-conditioned space 9. The plurality of human sensors 71 detect the presence or absence of a person in mutually different detection areas within the air-conditioned space 9 . The person detection unit 7 generates person detection data including detection results of each of the plurality of human sensors 71. The human detection data corresponds to the human detection result in the air-conditioned space 9. The person detection unit 7 outputs the person detection data of the air-conditioned space 9 to the control device 4 .

Note that the human sensor 71 is configured using at least one of a pyroelectric sensor, a radio wave sensor, an ultrasonic sensor, a camera, and the like.

(2.5) Control device The control device 4 preferably includes a computer system. That is, in the control device 4, a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit) reads and executes a program stored in a memory, thereby controlling some or all of the functions of the control device 4. is realized. The control device 4 includes a processor that operates according to a program as its main hardware configuration. The type of processor does not matter as long as it can implement a function by executing a program. A processor is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integration (LSI). Here, they are called IC or LSI, but the name changes depending on the degree of integration, and may be called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Field programmable gate arrays (FPGAs), which are programmed after the LSI is manufactured, or reconfigurable logic devices that can reconfigure the interconnections within the LSI or set up circuit sections within the LSI, may also be used for the same purpose. I can do it. A plurality of electronic circuits may be integrated on one chip or may be provided on a plurality of chips. The plurality of chips may be arranged in a concentrated manner or may be arranged in a dispersed manner.

Note that the control device 4 may be realized by either one computer device or a plurality of computer devices that cooperate with each other. Further, the control device 4 may be constructed as a cloud computing system.

The control device 4 controls the drive mechanism 33 of the blower device 3 by performing wired or wireless communication with the blower device 3. Note that the wired communication is, for example, wired communication via a twisted pair cable, a dedicated communication line, or a LAN (Local Area Network) cable. The wireless communication is, for example, wireless communication based on a standard such as Wi-Fi (registered trademark) or low power wireless that does not require a license (specified low power wireless).

Specifically, the control device 4 individually controls the drive mechanisms 33 of the four blower devices 3 based on the detection results of the temperature detection section 6 and the person detection section 7. Specifically, the control device 4 adjusts the sliding position of the rectifying plate 32 by controlling the position of the rod of the electric actuator 33a of the drive mechanism 33 of the blower device 3. That is, the control device 4 controls the position of the current plate 32 by controlling the position of the electric actuator 33a. Assuming that the position of the rectifying plate 32 along the X axis is the sliding position, the sliding position of the rectifying plate 32 is adjusted by the control device 4 controlling the position of the electric actuator 33a.

The control device 4 can switch control modes for controlling each drive mechanism 33 (a plurality of drive mechanisms 33) of the four blower devices 3. The control device 4 has a stirring mode and a spot mode as control modes. The stirring mode is a control mode that generates a vortex airflow B1 (see FIG. 10) in the air-conditioned space 9. The spot mode is a control mode in which the blown air A1 is concentrated in a part of the air-conditioned space 9. That is, the control device 4 can set stirring mode or spot mode as the control mode.

Furthermore, the control device 4 controls the air conditioner 2 by performing wired or wireless communication with the air conditioner 2. That is, the control device 4 can control the supply amount of the supply air A11 to each of the four blowers 3 for each blower 3.

Then, the control device 4 adjusts the air-conditioned environment of the air-conditioned space 9 by controlling the air conditioner 2 and the blower device 3.

Hereinafter, each of the stirring mode and spot mode will be explained. Note that the control mode may be switched manually by a human operation, or may be automatically switched based on schedule information or the like.

(2.5.1) Stirring Mode The control device 4 determines whether a bias (temperature unevenness) has occurred in the temperature distribution of the air-conditioned space 9 based on the temperature distribution data. For example, the control device 4 determines that temperature unevenness has occurred in the air-conditioned space 9 if the difference between the highest temperature and the lowest temperature in the air-conditioned space 9 is a certain value or more. Alternatively, if the standard deviation or variance of the plurality of temperatures measured by the plurality of temperature sensors 61 exceeds a predetermined threshold, the control device 4 determines that temperature unevenness has occurred in the air-conditioned space 9.

When the control device 4 determines that temperature unevenness has occurred in the air conditioned space 9 when the control mode is the stirring mode, the control device 4 controls the air conditioner so as to supply the supply air A11 to each of the four blowers 3. Control device 2. Furthermore, the control device 4 controls each of the four air blowers 3 so that the slide positions of the rectifier plates 32 of the four air blowers 3 are biased in the same direction (leftward or rightward in FIG. 9B) in the left-right direction of the respective housings 31. The drive mechanism 33 is controlled (see FIG. 9B).

Specifically, each rectifying plate 32 of the four air blowers 3 has a communication portion 313 on the side opposite to the side where the adjacent air blower 3 is located in the counterclockwise direction when viewed from above among the two adjacent air blowers 3. generate. That is, the baffle plate 32 slides counterclockwise when viewed from above toward the side where the adjacent blower device 3 is located, and creates the communication portion 313 on the opposite side in the sliding direction. As a result, the directivity of the air A1 blown out by each of the four blowers 3 is generated toward the adjacent blower 3 in a counterclockwise direction when viewed from above, as shown in FIG. As a result, a vortex airflow B1 that flows counterclockwise is generated in the air-conditioned space 9, the air in the air-conditioned space 9 is agitated by the vortex airflow B1, and temperature unevenness in the air-conditioned space 9 is suppressed.

Furthermore, each of the rectifying plates 32 of the four air blowers 3 creates a communication portion 313 on the opposite side of the two adjacent air blowers 3 from the side where the adjacent air blower 3 is located in the clockwise direction when viewed from above. You may. That is, the baffle plate 32 slides clockwise when viewed from above toward the side where the adjacent blower device 3 is located, and creates the communication portion 313 on the opposite side of the sliding direction. As a result, the directivity of the blown air A1 blown out by each of the four blowers 3 is generated clockwise to the side of the adjacent blower 3 when viewed from above. As a result, a vortex air current flowing clockwise is generated in the air conditioned space 9.

Here, the four blowers 3 are installed at locations corresponding to the four vertices of the rectangle on the ceiling 91, respectively. That is, the four air blowers 3 are installed on the ceiling 91 so as not to be lined up on the same straight line. As a result, the blower system 1 easily generates the vortex airflow B1 in the air-conditioned space 9 by the four blowers 3.

Note that the directivity of the blown air A1 blown out by each of the four blowers 3 may be generated on the side of the adjacent blower 3 in a clockwise direction when viewed from above. In this case, a vortex air current flowing clockwise is generated in the air-conditioned space 9.

In this way, the ventilation system 1 suppresses temperature unevenness in the air-conditioned space 9 in the stirring mode, so that the air-conditioned environment in the air-conditioned space 9 can be made comfortable.

(2.5.2) Spot Mode When the control mode is set to spot mode, the control device 4 determines an area in the air-conditioned space 9 to concentrate the blast air A1 based on the detection result of the person detection unit 7.

In this embodiment, as shown in FIG. 11, four human sensors 71 are installed in the air-conditioned space 9. Each of the four human sensors 71 uses a portion of the air-conditioned space 9 as a detection area R1 to R4. Each of the detection areas R1 to R4 is an area where the corresponding human sensor 71 can detect a person. The detection area R1 is set below the blower 3A. The detection area R2 is set below the blower device 3B. The detection area R3 is set below the blower 3C. The detection area R4 is set below the blower device 3D. That is, the detection area R1 corresponds to the blower 3A, the detection area R2 corresponds to the blower 3B, the detection area R3 corresponds to the blower 3C, and the detection area R4 corresponds to the blower 3D.

Based on the person detection data received from the person detection unit 7, the control device 4 determines whether a person is present in each of the detection areas R1 to R4.

When the control device 4 determines that a person is present in any of the detection areas R1 to R4 when the control mode is the spot mode, the control device 4 controls the air blower 3 corresponding to the detection area where the person is present. The air conditioner 2 is controlled so that the air conditioner 2 is supplied with the supply air A11 and is not supplied with the supply air A11 to the blower device 3 corresponding to the detection area where no person is present. Further, the control device 4 controls the drive mechanism so that the sliding position of the rectifying plate 32 of the air blower 3 corresponding to the detection area where a person is present among the detection areas R1 to R4 is located in the center of the internal space 310. 33 (see FIG. 9A). That is, the air blower 3 above the detection area blows air A1 directly below the air outlet 31h.

For example, in FIG. 12, among detection areas R1 to R4, people H1 and H2 exist in detection area R2, and person H3 exists in detection area R3. In this case, the control device 4 concentrates the blown air A1 on the detection areas R2 and R3. Specifically, the control device 4 supplies the supply air A11 to the

blowers

3B and 3C corresponding to the detection areas R2 and R3, and supplies the supply air A11 to the

blowers

3A and 3D corresponding to the detection areas R1 and R4. The air conditioner 2 is controlled to prevent this from happening. Furthermore, the control device 4 controls each drive mechanism 33 so that the sliding position of each rectifying plate 32 of the

air blowers

3B and 3C corresponding to the detection areas R2 and R3 is located at the center of the internal space 310. As a result, the blower device 3B blows out the air A1 directly below the blower port 31h of the blower device 3B, thereby adjusting the air-conditioned environment of the detection area R2 where the people H1 and H2 are present. Further, the blower device 3C blows air A1 directly below the blower port 31h of the blower device 3C to adjust the air conditioning environment of the detection area R3 where the person H3 is present.

In this way, in the spot mode, the blowing system 1 blows out the blowing air A1 only to the detection area where a person is present among the detection areas R1 to R4, so it is possible to save energy.

In addition, the blower device 3 makes the blowing air A1 a directional airflow and by controlling its directivity, it is possible to concentrate the blowing air A1 in a narrow area where one person (or a small number of people) is present. can. That is, when performing air conditioning control in spot mode, it becomes possible to narrow each detection area and adjust the air quality for each narrow detection area. Furthermore, it is also possible to change the direction in which the blower device 3 blows out the air A1. As a result, in the spot mode, the ventilation system 1 can provide a comfortable air-conditioned environment for each person even when a person moves within the air-conditioned space 9 or when a plurality of people are present in the air-conditioned space 9.

(3) First modified example FIG. 13 shows the configuration of a ventilation system 1A of a first modified example. The ventilation system 1A further includes an operation section 8. In addition, the same code|symbol is attached|subjected to the structure similar to the ventilation system 1, and description is abbreviate|omitted.

The operation unit 8 is a user interface device that receives user operations (user operations). For example, the operation unit 8 includes at least one of a switch, a touch panel, a keyboard, and a mouse that accept a user's manual operation (manual operation), and a microphone that accepts a user's voice operation (voice operation).

The user selects the control mode of the control device 4 by operating the operation unit 8. The operation unit 8 outputs an operation signal including information on the selected control mode to the control device 4. The control device 4 operates in a control mode based on the operation signal to control each drive mechanism 33 of the plurality of air blowers 3. For example, when the user selects the stirring mode by operating the operation unit 8, the control device 4 sets the control mode to the stirring mode, and controls each drive mechanism 33 of the plurality of blowers 3 in the stirring mode. Further, when the user selects the spot mode by operating the operation unit 8, the control device 4 sets the control mode to the spot mode and controls the drive mechanism 33 of each of the plurality of air blowers 3.

(4) Second Modification FIG. 14 shows the configuration of a second modification of the ventilation system 1B. The blower device 3 of the blower system 1B further includes a discharge device 36. In addition, the same code|symbol is attached|subjected to the structure similar to the ventilation system 1, and description is abbreviate|omitted.

The discharge device 36 is arranged on the inner surface of the intake port 31g. Then, the discharge device 36 adds an active ingredient to the supply air A11 supplied to the internal space 310 from the intake port 31g. As a result, the blown air A1 containing the active ingredient is blown downward from the air outlet 31h, and the blown air A1 containing the active ingredient is supplied to the air-conditioned space 9.

Specifically, the discharge device 36 has a pair of electrodes, and one of the pair of electrodes holds water. The discharge device 36 applies a voltage between the pair of electrodes to generate a discharge between the pair of electrodes, thereby generating radicals as an active ingredient and statically discharging the water held by the electrodes. Electro-atomize. Thus, the discharge device 36 generates nanometer-sized charged fine water particles containing radicals in the fine droplets of electrostatically atomized water. Radicals are not only useful for disinfecting, deodorizing, moisturizing, preserving freshness, and inactivating viruses, but also have useful effects in a variety of situations.

Furthermore, the discharge device 36 may generate a discharge between a pair of electrodes without holding water in the electrodes. In this case, the discharge device 36 generates air ions as an active ingredient by the discharge generated between the pair of electrodes.

Note that the discharge device 36 may be placed in the internal space 310.

(5) Third modification If the constriction part 31i of the blower device 3 is configured to narrow the portion of the internal space 310 on the side of the ventilation port 31h so that the internal space 310 is narrowed toward the periphery of the ventilation port 31h. good. For example, the constriction portion 31i may have a shape that gradually widens as the interior space 310 moves upward from the periphery of the air outlet 31h.

Furthermore, although the current plate 32 of the air blower 3 is a single plate member, a plurality of plate members may be used as the current plate instead of the current plate 32.

Furthermore, the sliding direction of the current plate 32 is not limited to the left-right direction along the X-axis. That is, the sliding direction of the current plate 32 may be a direction along a virtual line segment on the XY plane, for example, a front-rear direction along the Y-axis.

Furthermore, the sliding direction of the current plate 32 is not limited to one direction. That is, the current plate 32 slides independently in directions along two or more virtual line segments on the XY plane, for example, in the left-right direction along the X-axis and in the front-back direction along the Y-axis. It's okay.

Furthermore, the sliding direction of the current plate 32 is not limited to the direction perpendicular to the Z-axis, but may be any direction as long as it intersects with the Z-axis.

Further, the drive mechanism 33 of the blower device 3 may use other actuators such as a pneumatic actuator or a hydraulic actuator instead of the electric actuator 33a.

Further, the structure to which the air conditioner 2 and the blower device 3 are attached is not limited to the ceiling 91, but may be another structure such as a pedestal provided above the air conditioned space 9.

Furthermore, the number of blower devices 3 may be two or more. As long as the number of blowers 3 is two or more, the air-conditioned environment of the air-conditioned space 9 can be controlled in various control modes. For example, even if the number of blowers 3 is two, two blowers 3 arranged side by side in the first direction blow air in opposite directions to each other in a second direction perpendicular to or intersecting the first direction. By blowing out A1, it is possible to locally generate a vortex airflow in the air-conditioned space 9. That is, it is possible to generate a vortex airflow in stirring mode while suppressing the number of blowers 3. In the embodiment described above, the stirring mode and the spot mode are illustrated as control modes, but other control modes such as an individual mode in which two or more blowers are controlled independently and individually may be adopted. Good too.

Furthermore, if the number of air blowers 3 is three or more, it is preferable that the three or more air blowers 3 are installed on the ceiling 91 so that they are not lined up on the same straight line. For example, the three blowers 3 are installed at locations corresponding to the three vertices of a triangle on the ceiling 91, respectively. Furthermore, the five blowers 3 are installed at locations corresponding to five vertices of a pentagon on the ceiling 91, respectively. As a result, it becomes easier to generate the vortex airflow B1 in the air-conditioned space 9.

(6) Summary The ventilation system (1, 1A, 1B) of the first aspect according to the above-described embodiment includes a plurality of ventilation devices (3) installed on the ceiling (91) of the air-conditioned space (9). Each of the plurality of air blowers (3) includes a housing (31), a current plate (32), and a drive mechanism (33). The casing (31) is formed in a box shape with an internal space (310), and has an air intake port (31g) for feeding supply air (A11) into the internal space (310), through which air is supplied. An air outlet (31h) for blowing out the supplied air (A11) into the air-conditioned space (9) as blown air (A1), and a constriction part (31i) that narrows the internal space (310) toward the periphery of the air outlet (31h). ). The current plate (32) is arranged between the air intake port (31g) and the ventilation port (31h). The drive mechanism (33) moves the current plate (32).

The above-mentioned ventilation systems (1, 1A, 1B) can freely adjust the flow of air within the air-conditioned space (9).

In the first aspect, the air blowing system (1, 1A, 1B) of the second aspect according to the above-described embodiment sucks the air (A2) in the air-conditioned space (9), and adjusts the temperature of the sucked air (A2). It is preferable to further include an air conditioner (2) that generates conditioned air as supplied air (A11).

The above-mentioned ventilation systems (1, 1A, 1B) can control the air-conditioned environment of the air-conditioned space (9) by blowing out temperature-adjusted conditioned air as the blast air (A1).

In the third aspect of the ventilation system (1, 1A, 1B) according to the above-described embodiment, in the first or second aspect, the plurality of ventilation devices (3) are two or more ventilation devices (3). It is preferable that there be.

The above-mentioned ventilation systems (1, 1A, 1B) can control the air-conditioned environment of the air-conditioned space (9) in various control modes.

In the air blowing system (1, 1A, 1B) of the fourth aspect according to the above-described embodiment, in the first or second aspect, the plurality of air blowing devices (3) are three or more air blowing devices (3). It is preferable that there be.

In the ventilation system (1, 1A, 1B) of the fifth aspect according to the above-described embodiment, in the fourth aspect, three or more ventilation devices (3) are arranged on the ceiling ( 91).

The above-mentioned ventilation system (1, 1A, 1B) easily generates the vortex airflow (B1) in the air-conditioned space (9).

The air blowing system (1, 1A, 1B) of the sixth aspect according to the above-described embodiment includes a drive mechanism (33) for each of the plurality of air blowers (3) in any one of the first to fifth aspects. ) It is preferable to further include a control device (4) for controlling. The control device (4) controls each of the plurality of drive mechanisms (33) to generate a vortex airflow (B1) in the air-conditioned space (9).

The above-described air blowing system (1, 1A, 1B) can suppress temperature unevenness in the air-conditioned space (9) by the vortex air flow (B1).

In the sixth aspect, the ventilation system (1, 1A, 1B) of the seventh aspect according to the above-described embodiment may further include a temperature detection unit (6) that detects the temperature distribution of the air-conditioned space (9). preferable. The control device (4) controls each of the plurality of drive mechanisms (33) based on the detection result of the temperature detection section (6).

The above-described air blowing system (1, 1A, 1B) can generate a vortex airflow (B1) when the temperature distribution of the air-conditioned space (9) is uneven (temperature unevenness).

It is preferable that the air blowing system (1A) of the eighth aspect according to the above-described embodiment further includes an operation section (8) that outputs an operation signal according to a human operation in the sixth or seventh aspect. The control device (4) controls each of the plurality of drive mechanisms (33) based on the operation signal.

The above-mentioned air blowing system (1A) can generate the vortex airflow (B1) at any timing by manual operation by a person.

In the ventilation system (1, 1A, 1B) of the ninth aspect according to the above-described embodiment, in any one of the sixth to eighth aspects, the control device (4) controls the plurality of drive mechanisms (33). It is preferable to have a stirring mode and a spot mode as control modes for controlling the respective modes. The stirring mode is a control mode that generates a vortex airflow (B1) in the air conditioned space (9). The spot mode is a control mode in which the blown air is concentrated in a part of the air-conditioned space (9).

The above-mentioned air blowing system (1, 1A, 1B) can suppress temperature unevenness in the air-conditioned space (9) in the stirring mode, and can save energy in the spot mode.

In the ninth aspect, the ventilation system (1, 1A, 1B) of the tenth aspect according to the above-described embodiment further includes a person detection unit (7) that detects a person present in the air-conditioned space (9). is preferred. When the control mode is set to spot mode, the control device (4) determines an area in the air-conditioned space (9) to concentrate the blown air (A1) based on the detection result of the person detection section (7).

The above-mentioned ventilation systems (1, 1A, 1B) can provide a comfortable air-conditioned environment for each person.

In the air blowing system (1, 1A, 1B) of the eleventh aspect according to the above-described embodiment, in any one of the first to tenth aspects, the intake port (31g) allows the supply air (A11) to flow. Preferably, it is connected to the duct (5).

The above-mentioned ventilation systems (1, 1A, 1B) can easily supply conditioned air to the ventilation device (3).

In the air blowing system (1B) of the twelfth aspect according to the above-described embodiment, in any one of the first to eleventh aspects, each of the plurality of air blowing devices (3) generates an active ingredient by electric discharge. It is preferable to further include a discharge device (36). The air (A1) blown out from the air outlet (31h) contains an active ingredient.

The above-mentioned ventilation system (1B) can obtain useful effects such as deodorization, moisturizing, freshness preservation, and virus inactivation.

1, 1A, 1B Air blowing system 2 Air conditioner 3 Air blower 31 Housing 310 Internal space 31g Intake port 31h Air blowing port 31i Throttle section 32 Current plate 33 Drive mechanism 36 Discharge device 4 Control device 5 Duct 6 Temperature detection section 7 Person detection section 8 Operation unit 9 Air-conditioned space 91 Ceiling A1 Blow air A11 Supply air A2 Air B1 Vortex air flow

Claims

Equipped with multiple blowers installed on the ceiling of the air-conditioned space,
Each of the plurality of air blowers includes:
It is formed in a box shape having an internal space, and includes an intake port for feeding supply air into the internal space, an air outlet for blowing out the supply air that has passed through the internal space as blast air into the air-conditioned space, and a casing having a constriction portion that narrows the internal space toward the periphery of the air outlet;
a rectifier plate disposed between the air intake port and the air outlet;
An air blowing system comprising: a drive mechanism that moves the baffle plate.
The air blowing system according to claim 1, further comprising an air conditioner that sucks air in the air-conditioned space and generates conditioned air in which the temperature of the sucked air is adjusted as the supply air.
The air blowing system according to claim 1 or 2, wherein the plurality of air blowing devices are two or more air blowing devices.
The air blowing system according to claim 1 or 2, wherein the plurality of air blowing devices are three or more air blowing devices.
The ventilation system according to claim 4, wherein the three or more ventilation devices are installed on the ceiling so that they are not lined up on the same straight line.
further comprising a control device that controls the drive mechanism of each of the plurality of blowers,
The ventilation system according to claim 1, wherein the control device controls each of the plurality of drive mechanisms to generate a vortex airflow in the air-conditioned space.
further comprising a temperature detection unit that detects temperature distribution in the air-conditioned space,
The air blowing system according to claim 6, wherein the control device controls each of the plurality of drive mechanisms based on the detection result of the temperature detection section.
It further includes an operation section that outputs an operation signal according to human operation,
The ventilation system according to claim 6, wherein the control device controls each of the plurality of drive mechanisms based on the operation signal.
As a control mode in which the control device controls each of the plurality of drive mechanisms,
a stirring mode that generates the vortex airflow in the air-conditioned space;
The ventilation system according to claim 6, further comprising a spot mode in which the blown air is concentrated in a part of the air-conditioned space.
further comprising a person detection unit that detects a person present in the air-conditioned space,
The ventilation system according to claim 9, wherein the control device determines an area in which the blast air is concentrated in the air-conditioned space based on a detection result of the person detection unit when the control mode is set to the spot mode.
The air blowing system according to claim 1, wherein the air intake port is connected to a duct through which the supply air flows.
Each of the plurality of blower devices further includes a discharge device that generates the active ingredient by discharge,
The blowing system according to claim 1, wherein the blowing air blown out from the blowing port contains the active ingredient.