Blower device and blower system

Abstract

To provide a blower device which can expand functions and which can suppress increase in size, and to provide an air blowing system.SOLUTION: A blower device 1 includes a housing 13, a straightening plate 15, and a display surface G1. The housing 13 is formed into a box shape having an internal space 130, and it has: an intake port 13 for feeding air into the internal space 130; an air blowing port 13h for exhausting the air from the internal space 130; and a throttle part 13i for narrowing the internal space 130 toward the peripheral edge of the air blowing port 13h. The straightening plate 15 is arranged between the intake port and the air blowing port 13h. The display surface is positioned in the internal space 130, and displays a video toward the outside of the housing 13 from the air blowing port 13h. The intake port and the air blowing port 13h are opposing to each other. The straightening plate 15 is not supported from the air blowing port 13h side of the housing 13, but is supported on the intake port side of the housing 13.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a blower device and a blower system.

Background Art

[0002] The air purifying device of Patent Document 1 includes a casing having an air suction port and an air outlet, and a guide plate is provided inside the casing. The guide plate is disposed substantially at the center of the casing, and a gap through which air passes is provided between the guide plate and the peripheral plate of the casing. Further, a baffle plate that covers the inner peripheral edge of the air outlet is provided below the guide plate. The guide plate guides the air sent into the casing by the fan toward the peripheral plate while sending 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 air flow toward the opening.

[0003] In recent years, various devices have been added with functions other than their original functions to expand the functions of the devices. However, the devices tend to increase in size due to the addition of functions, and it is required to achieve both the expansion of functions and the suppression of size increase.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0005] An object of the present disclosure is to provide a blower device and a blower system that can expand functions and suppress size increase.

[0006] An air blower according to one aspect of the present disclosure comprises a housing, a rectifier plate, and a display surface. The housing is formed in the shape of a box having an internal space, and has an air intake port for supplying air to the internal space, an air outlet for expelling the air from the internal space, and a constriction portion that narrows the internal space toward the periphery of the air outlet. The rectifier plate is positioned between the air intake port and the air outlet. The display surface is located in the internal space and displays an image toward the outside of the housing from the air outlet. The air intake port and the air outlet face each other. The rectifier plate is not supported from the side of the housing toward the air outlet, but is supported on the side of the housing toward the air intake port.

[0007] A blowing system according to one aspect of the present disclosure comprises the blowing device described above and a projector device that projects the image onto the display surface. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a perspective view showing a blower according to an embodiment. [Figure 2] Figure 2 is an exploded perspective view showing the same blower device. [Figure 3] Figure 3 is another exploded perspective view showing the same blower device. [Figure 4] Figure 4 is a cross-sectional view showing the same blower device. [Figure 5] Figure 5 is another cross-sectional view showing the same blower device. [Figure 6] Figure 6 is a front view showing the same blower device. [Figure 7] Figure 7 is a rear view showing the same blower device. [Figure 8] Figure 8 is a left side view showing the same blower device. [Figure 9] Figure 9 is a right-side view showing the same blower device. [Figure 10] Figure 10 is a top view showing the same blower device. [Figure 11] Figure 11 is a bottom view showing the same blower device. [Figure 12]Fig. 12 is a diagram showing an installation example of the same air blower. [Figure 13] Fig. 13 is a cross-sectional view showing the air blower of the first modification example. [Figure 14] Fig. 14 is a block diagram showing the air blower of the second modification example. [Figure 15] Fig. 15 is a block diagram showing the air blower of the third modification example. [Figure 16] Fig. 16 is a cross-sectional view showing the same air blower. <00...​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Figure 32 is another cross-sectional view showing the same blower device. [Figure 33] Figure 33 is a block view of the same blower device. [Figure 34] Figure 34 is a block diagram showing the configuration of the environmental control system equipped with the same blower device. [Figure 35] Figure 35 is a conceptual diagram illustrating the operation of the environmental control system described above. [Modes for carrying out the invention]

[0009] This embodiment generally relates to a blower, a blower system, and an environmental control system. More specifically, this disclosure relates to a blower, a blower system, and an environmental control system comprising a rectifier plate.

[0010] The embodiments described below are merely examples of embodiments of this disclosure. This disclosure is not limited to the embodiments described below, and various modifications are possible depending on the design, etc., as long as the effects of this disclosure can be achieved.

[0011] Furthermore, in the following explanation, unless otherwise specified, the X, Y, and Z axes in Figure 1 are defined as mutually orthogonal. For convenience, one of the two directions along the X axis is defined as the right direction, and the other as the left direction. Also, one of the two directions along the Y axis is defined as the forward direction, and the other as the backward direction. Also, one of the two directions along the Z axis is defined as the upward direction, and the other as the downward direction.

[0012] (Embodiment) (1) Outline of the blower Figures 1-11 show the blower device 1 of this embodiment. The blower device 1 is used in facilities such as office buildings, offices, shops, factories, or commercial facilities. The blower device 1 may also be used in apartments in multi-unit dwellings, detached houses, etc.

[0013] As shown in Figure 12, the blower 1 is installed above the air-conditioned space 9. Above the air-conditioned space 9 is the building's ceiling 91. Multiple T-bars (framework) 92 arranged in a grid pattern are suspended from the ceiling 91 by suspension bolts 93. The multiple T-bars 92 arranged in a grid pattern form multiple rectangular grids 95 arranged in a grid pattern. The standard dimensions of the grid 95 are, for example, 600 mm x 600 mm. A system ceiling is constructed by placing ceiling panels and the like in each of the grids 95. The blower 1 is suspended from the ceiling 91 by a suspension device 94 and positioned in the grid 95. The blower 1 draws in air from within the air-conditioned space 9, rectifies the drawn-in air, and blows it back into the air-conditioned space 9.

[0014] As shown in Figures 1-11, the blower 1 comprises a housing 13, a rectifier plate 15, and a display surface G1. The housing 13 is formed in a box shape with an internal space 130, and has an air intake port 13g for supplying air to the internal space 130, an air outlet 13h for expelling air from the internal space 130, and a constriction portion 13i that narrows the internal space 130 toward the periphery of the air outlet 13h. The rectifier plate 15 is positioned between the air intake port 13g and the air outlet 13h. The display surface G1 is located in the internal space 130 and displays an image toward the outside of the housing 13 from the air outlet 13h.

[0015] The blower 1, having the above-described configuration, expands its functionality by having a display function that displays images in addition to its blowing function. Furthermore, in the blower 1, the display surface G1 is located in the internal space 130, and the image is displayed from the air outlet 13h toward the outside of the housing 13, thereby suppressing the increase in size that would occur if the display surface G1 were provided. In other words, the blower 1 can expand its functionality while suppressing an increase in size.

[0016] (2) Details of the blower As shown in Figures 2-5, the blower 1 comprises a cover 11, a blower 12, a housing 13, a mounting bracket 14, and a rectifier plate 15.

[0017] (2.1) Enclosure The housing 13 comprises a case 131 and a frame 132, which are mainly made of galvanized steel sheets.

[0018] Case 131 comprises a left wall 13a, a right wall 13b, a front wall 13c, a rear wall 13d, and an upper wall 13e. Each of the left wall 13a, right wall 13b, front wall 13c, rear wall 13d, and upper wall 13e is approximately rectangular in shape. The upper wall 13e forms the top surface of case 131. Each of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d extends downward from the four sides of the upper wall 13e, forming the side surfaces of the housing 13. The bottom surface of case 131 forms a rectangular opening 13f surrounded by the lower ends of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d. The left wall 13a and right wall 13b face each other in the left-right direction along the X-axis. The front wall 13c and rear wall 13d face each other in the front-back direction along the Y-axis. The upper wall 13e and the opening 13f are facing each other vertically along the Z-axis.

[0019] The frame 132 comprises a rectangular frame 132a and an edge portion 132b, and is attached to the bottom surface of the case 131 with screws or the like so as to surround the opening 13f on the bottom surface of the case 131.

[0020] The rectangular frame 132a is a rectangular frame formed from a flat plate. The rectangular frame 132a extends in a direction along the XY plane (a plane defined by the X and Y axes) so as to narrow the rectangular opening 13f formed by the lower ends of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d of the case 131. In other words, the rectangular frame 132a constitutes a throttling section 13i that narrows the internal space 130 toward the periphery of the air outlet 13h. The rectangular opening surrounded by the rectangular frame 132a (throttling section 13i) corresponds to the air outlet 13h.

[0021] The edge portion 132b extends diagonally downward from the outer edge of the rectangular frame 132a. The edge portion 132b extends diagonally downward from the lower ends of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d of the case 131.

[0022] The housing 13, comprising the case 131 and frame 132 described above, has an internal space 130 surrounded by a left wall 13a, a right wall 13b, a front wall 13c, a rear wall 13d, an upper wall 13e, a rectangular frame 132a, and an air outlet 13h. In other words, the housing 13 is formed in the shape of a hollow rectangular box with a rectangular air outlet 13h on its lower surface.

[0023] Two rectangular air intakes 13g are provided in the center of the upper wall 13e. The longer side of each air intake 13g is aligned with the X-axis, and the shorter side is aligned with the Y-axis. The two air intakes 13g are aligned along the Y-axis. The air intakes 13g spatially connect the space above the upper wall 13e to the internal space 130. The air blown out by the blower 12 passes through the air intakes 13g and is blown out from top to bottom into the internal space 130.

[0024] The air outlet 13h is a rectangular plane aligned with the XY plane (the plane defined by the X and Y axes), and the normal direction of this air outlet 13h is aligned with the Z axis. A rectangular frame 132a constituting a diaphragm 13i is formed around the periphery of the air outlet 13h. The diaphragm 13i narrows the internal space 130 toward the periphery of the air outlet 13h by constricting the portion of the internal space 130 that is on the air outlet 13h side. Alternatively, the diaphragm 13i expands the internal space 130 from the periphery of the air outlet 13h toward the outside of the air outlet 13h. In this embodiment, the diaphragm 13i extends flange-like along the XY plane toward the air outlet 13h from the lower ends of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d.

[0025] In other words, the housing 13 is formed in the shape of a box having an internal space 130, and has an air intake port 13g for supplying air to the internal space 130, an air outlet 13h for expelling air from the internal space 130, and a constricted portion 13i that narrows the internal space 130 toward the periphery of the air outlet 13h.

[0026] Furthermore, the housing 13 has an expanded space 134 in the internal space 130. The expanded space 134 is the upper space of the internal space 130, and its cross-section, when viewed from the direction along the X axis, is a truncated square pyramid shape. The expanded space 134 is a space that widens as it approaches the rectifier plate 15 in the internal space 130 from the air intake 13g. Specifically, the front wall 13c has an inclined wall 133c that is tilted backward at the upper part of the front wall 13c, and the rear wall 13d has an inclined wall 133d that is tilted forward at the upper part of the rear wall 13d. The expanded space 134 is formed by the inclined walls 133c and 133d.

[0027] The case 131 also includes a pair of mounting pieces 13k extending to the left from the left wall 13a and a pair of mounting pieces 13k extending to the right from the right wall 13b. The mounting pieces 13k are Y-shaped flat plates with their tips branched into two.

[0028] (2.2) Blower The blower 12 is a cross-flow fan that draws in air from above the housing 13 and expels it. The blower 12 is equipped with a cylindrical impeller 12a and is attached to the upper surface of the upper wall 13e of the housing 13 with screws or the like so that the rotation axis of the impeller 12a is aligned with the X axis. The blower 12 is located above the intake port 13g of the upper wall 13e, and the air expelled by the rotation of the impeller 12a flows into the internal space 130 through the intake port 13g.

[0029] The two blowers 12 are arranged side by side along the Y-axis, with the blower 12 closer to the front wall 13c designated as blower 121 and the blower 12 closer to the rear wall 13d designated as blower 122. The direction in which blower 121 and blower 122 expel air are opposite. Blower 121 expels air towards the front wall 13c (forward) (see arrow F1 in Figure 5), and blower 122 expels air towards the rear wall 13d (backward) (see arrow F2 in Figure 5).

[0030] The blower 12 is driven by AC or DC power supplied from a power system (not shown), and the impeller 12a rotates when the blower 12 is driven.

[0031] (2.3) Cover The cover 11 is a rectangular box shape with an opening 11a on its bottom surface and is mainly made of galvanized steel sheet. The cover 11 houses the housing 13 inside the cover 11 through the opening 11a and is attached to the housing 13 with screws or the like.

[0032] A pair of rectangular through holes 11b are formed in the right and left walls of the cover 11. The mounting piece 13k of the housing 13 is inserted into the through holes 11b to position the housing 13 relative to the cover 11.

[0033] Furthermore, a space is formed between the side of the cover 11 and the side of the housing 13, and between the bottom surface of the cover 11 and the top surface of the housing 13, which serves as an airflow path 136 from below the cover 11 to the blower 12 (see Figures 4 and 5). The airflow path 136 is maintained by a rod-shaped spacer 11c (see Figures 4 and 5) positioned between the bottom surface of the cover 11 and the top surface of the housing 13, which ensures a gap between the bottom surface of the cover 11 and the top surface of the housing 13. The rectangular frame-shaped inlet 136a (see Figures 4 and 5) of the airflow path 136 is formed along the entire periphery of the bottom surface of the cover 11. When the blower 12 operates, air is drawn in from below the cover 11 along the top surface of the edge 132b into the inlet 136a. The air that flows into the airflow path 136 from the inlet 136a is drawn into the blower 12 through the airflow path 136. The blower 12 draws in air through the flow path 136 and discharges it into the internal space 130 through the intake port 13g.

[0034] (2.4) Mounting bracket The mounting bracket 14 comprises a mounting plate 14a and four support members 14b. The mounting plate 14a is a rectangular flat plate. The support members 14b are rod-shaped, and the lower ends of the support members 14b are fixed to each of the four corners of the upper surface of the mounting plate 14a. The upper ends of the support members 14b are fixed to the lower surface of the upper wall 13e of the housing 13. That is, the mounting plate 14a is fixed to the lower surface of the upper wall 13e by the four support members 14b and is positioned in the internal space 130 of the housing 13. In the internal space 130, the mounting plate 14a is located below the two air intake ports 13g and faces the two air intake ports 13g along the Z-axis.

[0035] (2.5) Current plate The rectifier plate 15 is rectangular in shape and has a first surface 15a and a second surface 15b facing each other in the thickness direction. The rectifier plate 15 is attached to the lower surface of the mounting plate 14a with screws or the like so that the first surface 15a of the rectifier plate 15 is in contact with the lower surface of the mounting plate 14a. In other words, the rectifier plate 15 is positioned in the internal space 130 such that the first surface 15a faces the upper wall 13e and the second surface 15b faces the air outlet 13h.

[0036] A gap forming a communication portion 135 is created between the periphery of the rectifier plate 15 and the inner surfaces of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d of the housing 13. In other words, a rectangular frame-shaped communication portion 135 is formed on the outside of the rectifier plate 15, connecting the space on the first surface 15a side and the space on the second surface 15b side in the internal space 130. The communication portion 135 may be formed along the entire circumference of the periphery of the rectifier plate 15, or it may be formed along only a pair of sides that are opposite to each other along the X axis or Y axis.

[0037] The second surface 15b of the rectifier plate 15 is exposed below the housing 13 through the air outlet 13h. That is, the second surface 15b can be seen from below the blower 1 through the air outlet 13h. Therefore, the blower 1 has a display surface G1 on the second surface 15b. The display surface G1 constitutes a display area that displays images from the air outlet 13h toward the outside of the housing 13.

[0038] In this embodiment, the rectifier plate 15 is a display device 151. The display device 151 is rectangular in shape, with the top surface being the first surface 15a and the bottom surface being the second surface 15b. The second surface 15b of the display device 151 is provided with a light-emitting screen 151a that emits images, and the light-emitting screen 151a constitutes the display surface G1. In other words, the display device 151 also functions as the rectifier plate 15 and has the functions of both a rectifier plate 15 and a display surface G1.

[0039] (2.6) Air supply When the blower 12 is driven, the impeller 12a rotates, and the air blown out by the blower 12 passes through the intake port 13g and is blown from top to bottom into the internal space 130 of the housing 13. The air supplied downward from the intake port 13g flows along the first surface 15a of the rectifier plate 15 (display device 151) toward the communication section 135, passes through the communication section 135 from top to bottom, then proceeds between the second surface 15b of the rectifier plate 15 and the throttling section 13i toward the air outlet 13h, and is blown downward from the air outlet 13h. The air blown out from the air outlet 13h is supplied to the air-conditioned space 9 (see Figure 12).

[0040] Here, the blower 1 has a function to improve the directivity of the air blown out from the air outlet 13h by providing a throttling section 13i that narrows the internal space 130 toward the periphery of the air outlet 13h, compared to a blower without the throttling section 13i. In other words, the blower 1 can suppress excessive diffusion of the air blown out from the air outlet 13h and make the air blown out from the air outlet 13h a concentrated airflow.

[0041] Furthermore, the blower 1 has multiple air intake ports 13g (two in this embodiment), and by having the air being sent into the internal space 130 from the multiple air intake ports 13g in different directions, the air blown downward from the air outlet 13h can be made into a surface airflow.

[0042] Specifically, as shown by arrow F1 in Figure 5, the air discharged by blower 121 into the internal space 130 flows along the first surface 15a of the rectifier plate 15 toward the front wall 13c, passes through the communication section 135 from top to bottom, and then flows along the second surface 15b of the rectifier plate 15 toward the rear wall 13d. Similarly, as shown by arrow F2 in Figure 5, the air discharged by blower 122 into the internal space 130 flows along the first surface 15a of the rectifier plate 15 toward the rear wall 13d, passes through the communication section 135 from top to bottom, and then flows along the second surface 15b of the rectifier plate 15 toward the front wall 13c. The air flowing from blower 121 along arrow F1 and the air flowing from blower 122 along arrow F2 collide below the second surface 15b of the rectifier plate 15 (near the center of the second surface 15b in the front-to-back direction) and is blown downward from the air outlet 13h. At this time, below the second surface 15b of the rectifier plate 15, the air flowing along arrow F1 and the air flowing along arrow F2 move toward each other (in opposite directions) and collide. As a result, the air blown downward from the air outlet 13h becomes a surface airflow, allowing air to be blown out with a more uniform airflow over a wide area below the blower 1.

[0043] Furthermore, the internal space 130 has an expanded space 134 (see Figure 5) that widens as it approaches the rectifier plate 15 from the air intake 13g, thereby suppressing the formation of a dead zone in the internal space 130 where almost no air flows.

[0044] Specifically, the air supplied from the intake port 13g to the internal space 130 from top to bottom consists not only of an airflow that flows directly downward from the intake port 13g and collides with the first surface 15a of the rectifier plate 15, but also of an airflow that gradually expands along the expansion space 134 from the intake port 13g as it flows downward and collides with the first surface 15a of the rectifier plate 15. Since the expansion space 134 gradually expands as it moves downward, a dead zone where almost no air flows is less likely to occur in the upper part of the internal space 130. In other words, the expansion space 134 has a shape that cuts off the upper corner of the internal space 130, making it less likely for a dead zone to occur in the internal space 130. Therefore, the blower 1 can reduce the pressure loss of air in the internal space 130 and improve the blowing efficiency.

[0045] Furthermore, it is preferable that the amount of air discharged from the air outlet 13h fluctuates with 1 / f fluctuation. Specifically, the blower 12 fluctuates the amount of air discharged into the internal space 130 through the air intake 13g with 1 / f fluctuation by varying the rotational speed of the impeller 12a. As a result, the blower 1 can fluctuate the amount of air discharged from the air outlet 13h with 1 / f fluctuation. Then, people inside the air-conditioned space 9 (see Figure 12) can feel a natural breeze due to the airflow that fluctuates with 1 / f fluctuation, and can relax.

[0046] (2.7)Display The blower 1 is equipped with a display device 151 as a rectifier plate 15. The display device 151 is a liquid crystal display device or an organic EL display device, etc. The display device 151 has a light-emitting screen 151a that emits an image, and the light-emitting screen 151a constitutes the display surface G1. A person in the air-conditioned space 9 can see the image displayed on the light-emitting screen 151a through the air outlet 13h.

[0047] The display device 151 is driven by AC or DC power supplied from a power system (not shown). The display device 151 receives video data via wired or wireless communication and displays the video based on the video data on the light-emitting screen 151a. The wireless communication is preferably a wireless communication conforming to standards such as Wi-Fi®, Bluetooth®, ZigBee®, or unlicensed low-power wireless (specified low-power wireless). Alternatively, the display device 151 may be configured to allow the attachment and detachment of a portable external storage device such as a USB memory or SD memory card, and may play back video data stored in the portable external storage device and display the video on the light-emitting screen 151a.

[0048] The image displayed on the light-emitting screen 151a of the display device 151 that constitutes the display surface G1 is preferably an image that has a relaxing effect on people. An image that has a relaxing effect on people is, for example, an environmental image of nature such as mountains, forests, woods, the sky, stars, the moon, twilight, sunlight filtering through trees, a bonfire, or the sea. Alternatively, an image that has a relaxing effect on people may be a healing image in which the colors and shapes change. People in the air-conditioned space 9 (see Figure 12) can relax by looking at the display surface G1.

[0049] Furthermore, the air blower 1 can further enhance the relaxation effect on people in the air-conditioned space 9 (see Figure 12) by displaying images that have a relaxing effect on people on the display surface G1 while fluctuating the amount of air discharged from the air outlet 13h with 1 / f fluctuations.

[0050] The blower 1 has the function of blowing air into the air-conditioned space 9 and the function of displaying images to the air-conditioned space 9, as described in (2.6) and (2.7). Therefore, by displaying an image on the display surface G1, the blower 1 creates a feeling in the viewer that they should move downwards from the blower 1. The person who moves downwards from the blower 1 will feel relaxed by the airflow blown out from the blower 1, especially the airflow that fluctuates with 1 / f fluctuations, and the environmental image displayed on the display surface G1.

[0051] (2.8) Standard dimensions The blower 1 is positioned on a rectangular grid 95 formed by a plurality of T-bars 92 arranged in a grid pattern as shown in Figure 12. Therefore, it is preferable that the outer dimensions of the frame 132 of the housing 13 correspond to the standard dimensions of the grid 95.

[0052] The standard dimensions of the grid 95 are, for example, 600mm x 600mm. In this case, the frame 132 is preferably a square frame, and is formed to be slightly smaller than the outer dimensions of 600mm x 600mm. Therefore, when the blower 1 is fitted into the grid 95, the incongruity of the frame 132 fitting into the grid 95 is minimized, and the aesthetic appearance of the system ceiling can be improved.

[0053] (2.9) Selection of a blower Furthermore, if multiple blowers 1 are installed, it is preferable that each blower 1 performs the following operations.

[0054] The operator selects one of the multiple blowers 1 by operating the terminal device 8, and the terminal device 8 transmits a device selection signal containing the identification information (device identification information) of the selected blower 1. In each of the multiple blowers 1, if the device identification information contained in the device selection signal received by the communication unit 16 matches the device identification information of its own device, the display device 151 flashes the image displayed on the light-emitting screen 151a (display surface G1).

[0055] Therefore, the blower 1 can notify the operator of its presence. As a result, the operator can easily find the blower 1 they are looking for among multiple blowers 1.

[0056] (3) First modified example The first modified blower device 1A further includes a discharge device 2, as shown in Figure 13.

[0057] The discharge device 2 is positioned in the flow path 136. In Figure 13, the discharge device 2 is positioned in the flow path 136 between the side of the cover 11 and the side of the housing 13. The discharge device 2 adds the active ingredient to the air flowing through the flow path 136 toward the blower 12. The blower 12 draws in the air containing the active ingredient through the flow path 136 and discharges the air containing the active ingredient into the internal space 130. As a result, the air containing the active ingredient is rectified by the rectifier plate 15 and then blown downward from the air outlet 13h, supplying the air containing the active ingredient to the air-conditioned space 9 (see Figure 12).

[0058] Specifically, the discharge device 2 has a pair of electrodes, and water is held in one of the electrodes. By applying a voltage between the pair of electrodes, the discharge device 2 generates a discharge between the electrodes, thereby generating radicals as an active ingredient and electrostatically atomizing the water held in the electrodes. Thus, the discharge device 2 generates nanometer-sized charged fine water droplets containing radicals in the electrostatically atomized water. Radicals are the basis for various useful effects, not only in sterilization, deodorization, moisturizing, preservation, and virus inactivation.

[0059] Alternatively, the discharge device 2 may generate a discharge between the pair of electrodes without retaining water in the electrodes. In this case, the discharge device 2 generates air ions as an active ingredient through the discharge generated between the pair of electrodes.

[0060] The discharge device 2 may be configured to be positioned opposite at least one inner surface of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d. For example, the discharge device 2 may be configured to be positioned opposite each of the inner surfaces of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d, or to be positioned opposite each of the inner surfaces of the front wall 13c and rear wall 13d.

[0061] (4) Second variation Figure 14 shows the block configuration of the second modified blower device 1B. The blower device 1B is the blower device 1 of the embodiment with an additional communication unit 16 and control unit 17. Note that the block configuration shown in Figure 14 is a diagram specifically for explaining the operation of the blower device 1B, and does not show all the components of the blower device 1B.

[0062] The blower 1B further comprises two blowers 12 and a display device 151, as well as a communication unit 16 and a control unit 17. The control unit 17 includes a blower control unit 17a and a video switching unit 17b.

[0063] The communication unit 16 has at least a wireless communication interface function for receiving wireless signals. The wireless communication is preferably a wireless communication conforming to standards such as Wi-Fi, Bluetooth, ZigBee, or unlicensed low-power wireless communication (specified low-power wireless communication). The communication unit 16 may not only receive wireless signals but also transmit them.

[0064] The control unit 17 preferably includes a computer system. That is, in the control unit 17, some or all of the functions of the control unit 17 are realized by a processor, such as a CPU (Central Processing Unit) or MPU (Micro Processing Unit), reading and executing a program stored in memory. The control unit 17 primarily includes a processor that operates according to the program as its hardware configuration. The type of processor is not limited as long as it can realize its functions by executing a program. The processor consists of one or more electronic circuits, including a semiconductor integrated circuit (IC) or an LSI (Large Scale Integration). Here, we refer to them as ICs and LSIs, but the name changes depending on the degree of integration; they may also be called system LSIs, VLSIs (Very Large Scale Integrations), or ULSIs (Ultra Large Scale Integrations). Field-programmable gate arrays (FPGAs), which are programmed after the LSI is manufactured, or reconfigurable logic devices that allow for the reconfiguration of internal junction relationships or the setup of internal circuit compartments, can also be used for the same purpose. Multiple electronic circuits may be integrated on a single chip or provided on multiple chips. Multiple chips may be arranged in a cluster or distributed.

[0065] The airflow control unit 17a controls the amount of air discharged from each of the two blowers 12 by individually controlling the operation of each of the two blowers 12.

[0066] The video switching unit 17b switches the video displayed on the light-emitting screen 151a (display surface G1) of the display device 151 to one of several videos. For example, the display device 151 accesses an external video database and selects one video from a large number of videos stored in the video database to display on the light-emitting screen 151a. The video switching unit 17b then instructs the display device 151 to display the video. The display device 151 displays the instructed video on the light-emitting screen 151a.

[0067] Then, the control unit 17 controls the two blowers 12 and the display device 151 based on the control signals received by the communication unit 16.

[0068] Specifically, the operator managing the blower 1B carries a terminal device 8. The terminal device 8 is, for example, a tablet, a smartphone, or a dedicated terminal. By operating the terminal device 8, the operator transmits various control signals to the communication unit 16 of the blower 1B. Examples of various control signals include blower control signals, video control signals, and blower mode control signals. As an example, the terminal device 8 displays a web browser screen or an application screen, and the operator transmits various control signals from the terminal device 8 by operating the browser screen or the application screen.

[0069] The airflow control signal is a control signal used to control the amount of air blown by the blower 1B. When the communication unit 16 of the blower 1B receives the airflow control signal, the airflow control unit 17a adjusts the amount of air discharged from each of the two blowers 12 by individually controlling the operation of each of the two blowers 12 based on the airflow control signal.

[0070] The fan mode control signal is a control signal for controlling the fan mode of the fan 12. The two fans 12 provided in the fan device 1B can operate in one of a predetermined number of fan modes. In this embodiment, the number of fan modes used is a first fan mode, a second fan mode, and a third fan mode. The first fan mode is a fan mode in which the two fans 12 operate individually. The second fan mode is a fan mode in which the two fans 12 operate synchronously with each other. The third fan mode is a fan mode in which at least one of the two fans 12 draws air from the internal space 130 through the air intake 13g. In this case, the fan control unit 17a selects one of the multiple fan modes based on the fan mode instruction signal and operates the two fans 12 in the selected fan mode.

[0071] The first blowing mode is a blowing mode in which the two blowers 12 operate independently. When the two blowers 12 are operating in the first blowing mode, the operator can individually adjust the amount of air discharged from each of the two blowers 12 by operating the terminal device 8.

[0072] The second blower mode is a blower mode in which the two blowers 12 operate in synchronous manner. When the two blowers 12 are operating in the second blower mode, the amount of air discharged from each of the two blowers 12 is adjusted in synchronous manner according to a predetermined pattern. For example, when blowers 121 and 122 are periodically varying their airflow, the timing of when the airflow of blower 121 is at its maximum coincides with the timing of when the airflow of blower 122 is at its minimum, and the timing of when the airflow of blower 121 is at its minimum coincides with the timing of when the airflow of blower 122 is at its maximum, thus synchronizing the operation of blowers 121 and 122. Alternatively, the operation of blowers 121 and 122 can be synchronized so that the timing when the airflow of blower 121 reaches its maximum coincides with the timing when the airflow of blower 122 reaches its maximum, and the timing when the airflow of blower 121 reaches its minimum coincides with the timing when the airflow of blower 122 reaches its minimum.

[0073] The third blowing mode is a blowing mode in which at least one of the two blowers 12 draws air from the internal space 130 through the air intake 13g. The blower 12 can draw air from the internal space 130 through the air intake 13g by reversing the rotation direction of the impeller 12a. Therefore, in the third blowing mode, the impellers 12a of blowers 121 and 122 are reversed, and blowers 121 and 122 draw air from the internal space 130. Alternatively, one of the blowers 121 or 122 may rotate its impeller 12a in the forward direction to expel air into the internal space 130, while the other blower 121 or 122 reverses its impeller 12a to draw air from the internal space 130.

[0074] The video control signal is a control signal that instructs the display device 151 to display an image on the light-emitting screen 151a. For example, the video control signal instructs the display device 151 to display one of the many video data stored in the video database. When the communication unit 16 of the blower 1B receives the video control signal, the video switching unit 17b instructs the display device 151 to display an image based on the video control signal. The display device 151 downloads the instructed image from the video database and displays it on the light-emitting screen 151a.

[0075] Therefore, by further comprising a communication unit 16, a blower control unit 17a, and a video switching unit 17b, the blower 1B can perform blower operation and display operation in response to the operation of an external terminal device 8.

[0076] Furthermore, the blower 1B can flexibly change the blowing operation pattern by operating in one of several blowing modes.

[0077] (5) Third variation Figure 15 shows the block configuration of the third modified blower device 1C. The blower device 1C is the blower device 1B of the second modified example, with the addition of an opening / closing member 3 and an opening / closing control unit 17c. Note that the block configuration shown in Figure 15 is a diagram specifically for explaining the operation of the blower device 1C, and does not show all the components of the blower device 1C.

[0078] The opening / closing member 3 is a flat, plate-shaped flap, and is driven to open and close by a motor or cylinder (not shown). As shown in Figures 16 and 17, the opening / closing member 3 is attached to the inner surfaces of the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d of the housing 13, respectively, and is configured to rotate (displace) between an open state that opens the communication portion 135 and a closed state that closes the communication portion 135. The communication portion 135 corresponds to the gap between the periphery of the rectifier plate 15 and the inner surface of the housing 13. Figures 16 and 17 show the opening / closing members 3 attached to the front wall 13c and rear wall 13d.

[0079] The control unit 17 of the blower 1C further comprises an opening / closing control unit 17c. The opening / closing control unit 17c controls the opening and closing operation of the opening / closing member 3 by controlling the driving means of the opening / closing member 3. The opening / closing control unit 17c controls the airflow direction of the air blown out from the air outlet 13h by controlling the opening and closing operation of the opening / closing member 3.

[0080] For example, as shown in Figure 16, the opening / closing control unit 17c opens the opening / closing members 3 attached to the left wall 13a, right wall 13b, front wall 13c, and rear wall 13d, respectively. In this case, the air blown out from the air outlet 13h becomes a surface airflow (downflow surface airflow) blown directly below the air outlet 13h (see arrows F1 and F2 in Figure 16).

[0081] Furthermore, as shown in Figure 17, the opening / closing control unit 17c opens the opening / closing member 3 attached to the front wall 13c, and closes the opening / closing members 3 attached to the left wall 13a, the right wall 13b, and the rear wall 13d. In this case, air flows through the communication section 135 along the front wall 13c, but not through the communication sections 135 along the left wall 13a, the right wall 13b, and the rear wall 13d. Therefore, the air blown out from the air outlet 13h blows from the front to the rear of the air outlet 13h (see arrow F3 in Figure 17).

[0082] As described above, the blower 1C can control the direction of the air blown out from the air outlet 13h by providing an opening / closing member 3.

[0083] (6) Fourth variation Figure 18 shows the block configuration of the fourth modified blower 1D. The blower 1D is the blower 1B of the second modified example, further equipped with a rectifier plate drive unit 41, an opening / closing member 42, and a lifting / lowering control unit 17d. Note that the block configuration shown in Figure 18 is a diagram specifically for explaining the operation of the blower 1D, and does not show all the components of the blower 1D.

[0084] The rectifier plate drive unit 41 moves the rectifier plate 15 up and down along the Z-axis using a drive means such as a motor or cylinder (see Figures 19 and 20). In other words, the rectifier plate drive unit 41 moves the rectifier plate 15 along the opposing direction between the intake port 13g and the outlet port 13h.

[0085] The opening / closing member 42 is a flat flap and is driven to open and close by a motor or cylinder (not shown). As shown in Figures 19 and 20, the opening / closing member 42 is a rectangular frame 132a configured to rotate relative to the edge 132b of the frame 132. When the opening / closing member 42 is closed and aligned horizontally (along the XY plane), the opening / closing member 42 (rectangular frame 132a) functions as a throttling portion 13i. When the opening / closing member 42 rotates downward and opens, the periphery of the opening 13f of the case 131 becomes the periphery of the air outlet 13h. That is, the opening / closing member 42 is attached to each of the four sides of the edge 132b of the frame 132 and is configured to rotate (displace) between an open state that opens the periphery of the opening 13f and a closed state that closes the periphery of the opening 13f and functions as a throttling portion 13i. Figures 19 and 20 show the opening and closing members 42 attached to the front and rear edges of the rectangular frame-shaped edge portion 132b.

[0086] The control unit 17 of the blower 1D further comprises a lifting control unit 17d. The lifting control unit 17d controls the lifting and lowering operation of the rectifier plate drive unit 41 and the opening and closing operation of the opening and closing member 42 by controlling the drive means. The lifting control unit 17d controls the airflow range of the air blown out from the air outlet 13h by controlling the lifting and lowering operation of the rectifier plate drive unit 41 and the opening and closing operation of the opening and closing member 3.

[0087] For example, in Figure 19, the lifting control unit 17d moves the rectifier plate 15 to its upper limit position and closes the opening / closing member 42. In this case, the rectifier plate 15 is located within the internal space 130 and the opening / closing member 42 functions as a throttling section 13i, so that the blower 1D can prevent the air blown out from the air outlet 13h from diffusing too much. In other words, the blower 1D can create a concentrated airflow from the air outlet 13h.

[0088] Furthermore, in Figure 20, the lifting control unit 17d moves the rectifier plate 15 to its lower limit position and opens the opening / closing member 42. In this case, the rectifier plate 15 descends to below the air outlet 13h and is located outside the internal space 130, and the opening / closing member 42 opens the periphery of the opening 13f, so that the blower 1D diffuses the air blown out from the air outlet 13h. In other words, the blower 1D can make the air blown out from the air outlet 13h into a diffused airflow.

[0089] (7) Fifth variation Figures 21-29 show the fifth modified example of the blower device 1E.

[0090] As shown in Figures 21-23, the blower 1E includes a projection plate 152 as a rectifier plate 15, instead of a display device 151. The projection plate 152 is rectangular in shape, with its upper surface being the first surface 15a and its lower surface being the second surface 15b. A projection surface 152a is provided on the lower surface of the projection plate 152. The projection surface 152a is the surface onto which the image is projected via the air outlet 13h, and constitutes the display surface G1. Preferably, the projection surface 152a is covered with a screen fabric that reflects the projected image, for example.

[0091] Figure 30 shows a ventilation system VS1 equipped with a blower 1E. In addition to the blower 1E, the ventilation system VS1 also includes a projector device 7. The projector device 7 is positioned on the floor or a stand in the air-conditioned space 9. The projector device 7 projects an image toward the projection surface 152a (display surface G1) of the blower 1E, which is installed above the air-conditioned space 9.

[0092] People inside the air-conditioned space 9 can view the image projected onto the projection surface 152a through the air outlet 13h.

[0093] The projector device 7 accesses an external video database, selects one video from a large number of videos stored in the video database, and projects it onto the projection surface 152a. Preferably, the operator transmits a video control signal to the projector device 7 by operating the terminal device 8. Upon receiving the video control signal, the projector device 7 downloads the instructed video from the video database and projects the downloaded video onto the projection surface 152a.

[0094] The blower 1E having the above configuration can reduce the dimensions along the Z-axis (height dimension) by including a projection plate 152 instead of a display device 151. In other words, the blower 1E can further suppress the increase in size while having a display function that displays images in addition to the blowing function.

[0095] (8) Sixth variation The blower 1F shown in Figures 31 and 32 is the blower 1E of the fifth modified example, with an additional light source 5 added.

[0096] The light source 5 is positioned above the projection plate 152A (rectifier plate 15) in the internal space 130, facing the first surface 15a of the projection plate 152A. The light source 5 is, for example, a long, rod-shaped bar light and is equipped with multiple solid-state light-emitting elements such as LEDs (Light Emitting Diodes), organic ELs (Organic Electro Luminescence, OELs), or laser diodes. In the blower 1F, the longitudinal direction of each of the three light sources 5 is aligned along the Y-axis, and the three light sources 5 are aligned along the X-axis. The light sources 5 are lit by AC power or DC power supplied from a power system (not shown) and emit illumination light downwards.

[0097] In the blower unit 1F, the upper surface of the projection plate 152A is the first surface 15a, and the lower surface of the projection plate 152A is the second surface 15b. The projection plate 152A causes light incident on the first surface 15a to be emitted from the second surface 15b. The projection plate 152A also reflects light incident on the second surface 15b. In other words, the projection plate 152A functions as a light-transmitting plate for light incident on the first surface 15a and as a reflector for light incident on the first surface 15a. Therefore, the illumination light emitted from the light source 5 passes through the projection plate 152A and is emitted from the projection surface 152a (display surface G1), and is irradiated downward from the air outlet 13h. Furthermore, because the projection plate 152A also functions as a diffuser, the illumination light emitted from the projection surface 152a (display surface G1) becomes diffused light, which can improve the relaxation effect of the illumination light. In other words, the blower 1F is located in the internal space 130 and further includes a light source 5 that emits illumination light. The illumination light is emitted from the display surface G1 towards the air outlet 13h, and the illumination light emitted from the display surface G1 becomes diffused light.

[0098] Furthermore, the projection plate 152A functions as a reflector for light incident on the first surface 15a, so that the first surface 15a becomes the projection surface 152a (display surface G1).

[0099] Figure 33 shows the block configuration of the blower 1F. The control unit 17 of the blower 1F comprises a blower control unit 17a, a lighting control unit 17e, and an operating mode switching unit 17f. Note that the block configuration shown in Figure 33 is a diagram specifically for explaining the operation of the blower 1F, and does not show all the components of the blower 1F.

[0100] The lighting control unit 17e controls the lighting and extinguishing of the light source 5 by instructing the light source 5 on its lighting state. In other words, the light source 5 is turned on or off by the lighting control unit 17e. Furthermore, if the light source 5 is a dimmable light source, the light source 5 is dimmed by the lighting control unit 17e. Furthermore, if the light source 5 is a color-adjustable light source, the color-adjustable light source 5 is color-adjusted by the lighting control unit 17e.

[0101] The operation mode switching unit 17f selects one of several operation modes, including a video mode that displays an image on the display surface G1 and an illumination mode that emits illumination light from the display surface G1, according to the operation mode signal.

[0102] The operator selects a desired operating mode from several operating modes by operating the terminal device 8, and the terminal device 8 transmits an operating mode signal to the blower 1F indicating the selected operating mode. When the communication unit 16 of the blower 1B receives the operating mode signal, the operating mode switching unit 17f switches the operating mode of the blower 1F to the operating mode indicated by the operating mode signal.

[0103] Specifically, the lighting control unit 17e controls the light source 5 to turn off when it is instructed to select the video mode. Meanwhile, the projector device 7 also receives the operation mode signal and, when instructed to select the video mode, projects an image onto the projection surface 152a (display surface G1). In other words, in video mode, the light source 5 is turned off and an image is displayed on the projection surface 152a.

[0104] Furthermore, the lighting control unit 17e controls the lighting of the light source 5 when instructed to select a lighting mode. Meanwhile, the projector device 7 also receives an operation mode signal and, when instructed to select a lighting mode, stops projecting images onto the projection surface 152a (display surface G1). In other words, in lighting mode, the light source 5 is lit, and no image is displayed on the projection surface 152a.

[0105] Note that the operating modes are not limited to the video mode and lighting mode described above. The operating modes may be other than the video mode and lighting mode, and there may be three or more selectable operating modes.

[0106] Furthermore, the lighting control unit 17e may control the light source 5 according to the airflow generated by the blower 1.

[0107] For example, the light source 5 is dimmed or color-adjusted according to the airflow rate of the blower 1. Specifically, the greater the airflow rate of the blower 1, the greater the output of the illumination light from the light source 5. Alternatively, the greater the airflow rate of the blower 1, the closer the illumination light from the light source 5 is to red, and the less airflow rate of the blower 1, the closer the illumination light from the light source 5 is to blue.

[0108] Furthermore, in the first modified example of (3) described above, if the discharge device 2 is operating and the air blown out from the blower 1 contains the active ingredient, the illumination light from the light source 5 is color-adjusted to irradiate the air-conditioned space 9 with, for example, blue illumination light.

[0109] (9) Seventh variation The images displayed on display surface G1 may be images other than environmental images and healing images.

[0110] For example, the video displayed on the display surface G1 is a video that notifies the status of a person located below the blower 1 using messages, symbols, or colors. In this case, the management system, including the blower 1, acquires identification information (person identification information) of the person located below the blower 1 and displays a video on the display surface G1 that notifies the status of the person corresponding to the acquired person identification information. Based on schedule information, images captured by cameras in the air-conditioned space 9, and information from information terminals carried by the person, the management system performs authentication processing for people in the air-conditioned space 9 and status determination processing for people in the air-conditioned space 9, and manages the status of people in association with person identification information.

[0111] Examples of a person's state include being on the phone, in a remote meeting, on a break, and working. In this case, a person inside the air-conditioned space 9 can easily be aware of the state of the people around them and take appropriate action (such as talking to them, being quiet, or moving) according to the state of those around them.

[0112] Furthermore, the images displayed on the display surface G1 may also be messages directed to people within the air-conditioned space 9. For example, images such as a message of welcome, a message notifying of an emergency, a message notifying of business communications, and a message notifying of news may be displayed on the display surface G1.

[0113] (10) Variation 8 Each of the above-mentioned controls, such as airflow control, video switching, wind direction control, wind area control, fan mode switching, operation mode switching, and lighting control, may be manually controlled by a smartphone, tablet terminal, or operating device installed on the wall of the air-conditioned space 9, or automatically controlled using various sensors installed in the air-conditioned space 9. The sensors include human body detection sensors (infrared sensors, camera image sensors, or thermal image sensors, etc.), temperature sensors, humidity sensors, air quality sensors, and carbon dioxide sensors. Furthermore, each of the above-mentioned controls may be coordinated control depending on the status of other equipment (air conditioning equipment, lighting equipment, etc.).

[0114] Furthermore, the rectifier plate 15 may be configured to move along the XY plane. In this case, the rectifier plate 15 can be moved along the XY plane within the internal space 130 by a drive mechanism such as an electric actuator, and the sliding position of the rectifier plate 15 on the XY plane can be made variable. By changing the sliding position of the rectifier plate 15, the directionality of the air blown out from the air outlet 13h of the blower 1, 1A-1F can be controlled.

[0115] Furthermore, the aperture portion 13i may be configured to narrow the internal space 130 toward the periphery of the air outlet 13h by narrowing the portion of the internal space 130 toward the periphery of the air outlet 13h. For example, the aperture portion 13i may have a shape that gradually widens the internal space 130 as it moves upward from the periphery of the air outlet 13h.

[0116] Furthermore, although the rectifier plate 15 is a single plate member, multiple plate members may be used as the rectifier plate.

[0117] Furthermore, the structure to which the blower 1, 1A-1F is attached is not limited to the ceiling 91, but may be other structures such as a frame provided above the air-conditioned space 9.

[0118] Furthermore, the above-described embodiments and each of the modified configurations can be combined as appropriate, and the effects of each configuration can be obtained similarly.

[0119] (11) Environmental adjustment system Figure 34 is a block diagram of the environmental control system ES1. The environmental control system ES1 comprises a blower 1G and a control system CS1. Preferably, the environmental control system ES1 further comprises an imaging device C1. The blower 1G is either one of the blowers 1, 1A-1F, or a combination of at least two of the functions of blowers 1, 1A-1F.

[0120] The blower 1G is installed above the air-conditioned space 9. The blower 1G discharges air from the air outlet 13h into the air-venting area R1 below it, creating an airflow in the air-venting area R1. The blower 1G can also display images on the display surface G1, allowing users H1 in the air-venting area R1 and people H2 in the air-conditioned space 9 to see the images.

[0121] The imaging device C1 images at least a portion of the air-conditioned space 9, including the air-blowing area R1, and outputs the captured image to the control system CS1. The captured image is preferably a color or black and white video, but it may also be a still image.

[0122] When the control system CS1 receives an image captured by the imaging device C1, it performs airflow control and image control based on the captured image. Airflow control involves controlling the air blower 1G to control the air discharged from the air outlet 13h toward the airflow area R1. Image control involves controlling the air blower 1G or the projector device 7 (see Figure 30) to control the image displayed on the display surface G1.

[0123] Specifically, the control system CS1 estimates the actions and states of user H1 in the air-ventilation area R1 and person H2 in the air-conditioned space 9 based on the captured images. The control system CS1 estimates the actions and states of user H1 and person H2 as they appear in the captured images using a learning model constructed by machine learning, such as deep learning. The learning model is preferably constructed by deep learning using FCN (Fully Convolutional Networks) or CNN (Convolutional Neural Network). The machine learning uses the captured images for training and the actions and states of user H1 and person H2 as training data. The learning model may also use other algorithms such as Support Vector Machines. When analyzing the images captured by the imaging device C1, software equipped with a predetermined image processing algorithm is used as such image processing software. This software is not limited to being built into the imaging device C1 or an interface near the imaging device C1, but may also rely on external AI (artificial intelligence) connected to the control system CS1 for image processing and analysis technology.

[0124] The control system CS1 then performs airflow control and video control based on the estimated results of the actions and states of at least one of user H1 and person H2.

[0125] In other words, the environmental control system ES1 further includes an imaging device C1 that images user H1 located in the airflow area R1. The control system CS1 switches the image displayed on the display surface G1 according to the results of analyzing user H1's actions or state from the images captured by the imaging device C1. The control system CS1 also controls the air discharged from the air outlet 13h toward the airflow area R1 according to the results of analyzing user H1's actions or state from the images captured by the imaging device C1.

[0126] In the following explanation, assuming that the air-conditioned space 9 is a free-address working space in an office, the air conditioning control and video control of the control system CS1 in the air-conditioned space 9 will be described using Figure 35. In this case, the ventilation area R1 is the space where users work or take breaks, and office furniture such as desks and chairs are installed in the ventilation area R1.

[0127] The control system CS1 operates in one of the control modes of stages ST1-ST6 shown in Figure 35. Stages (11.1) Selection Stage ST1 and (11.2) Preparation Stage ST2 allow, for example, the user to choose any available seat on the office floor and sit down to work. Stages (11.3) Concentration Stage ST3, (11.4) Casual Conversation Stage ST4, and (11.5) Creative Stage ST5 aim to improve work productivity while incorporating relaxing scenes. Furthermore, Stage (11.6) Cleaning Stage ST6 incorporates measures to prevent infectious diseases, for example.

[0128] (11.1) Select Stage ST1 When the state of the airflow area R1 reaches a specific condition, the control system CS1 displays a video on the display surface G1 recommending the use of the airflow area R1 as a form of video control.

[0129] Specifically, once cleaning of the airflow area R1 is completed in the cleaning stage ST6 described later (corresponding to a specific state of the airflow area R1), the control system CS1 switches the control mode to the selection stage ST1. When the control system CS1 sets the control mode to the selection stage ST1, it displays on the display surface G1 that the user may use the airflow area R1. The image displayed on the display surface G1 in the selection stage ST1 is, for example, an image of a message such as "Available," and an image in a color (for example, blue) that allows the user to intuitively recognize that the airflow area R1 is available for use.

[0130] In this modified example, user H1 sits in the airflow area R1 of the blower 1G, which has a sign on its surface G1 indicating that it may be used. Once user H1 is seated in the airflow area R1, they begin working. Therefore, user H1 can easily recognize the available space and feel a sense of security.

[0131] A fan 1G is installed above user H1, who is seated in the ventilation area R1. User H1 can adjust the strength and direction of the airflow from fan 1G by running an application pre-installed on their tablet, smartphone, or laptop computer. User H1 can also switch the image displayed on the fan 1G's display surface G1 to their preferred image by running the application. Furthermore, user H1 can set the content of the message displayed on the fan 1G's display surface G1.

[0132] (11.2) Preparation Stage ST2 In the selection stage ST1, the control system CS1 switches its control mode from the selection stage ST1 to the preparation stage ST2 when the time spent by user H1 in the ventilation area R1 exceeds a time threshold. In the preparation stage ST2, the control system CS1 starts a ventilation operation as ventilation control, causing air to be discharged from the air outlet 13h of the ventilation device 1G when the time spent by user H1 in the ventilation area R1 exceeds a time threshold.

[0133] In this modified example, the imaging device C1 images at least a portion of the air-conditioned space 9, including the ventilation area R1. When the control system CS1 receives the image from the imaging device C1, it measures the elapsed time since the user H1 sat down in the ventilation area R1 based on the image. When the elapsed time reaches a time threshold, the control system CS1 controls the ventilation device 1G to expel air from the ventilation port 13h of the ventilation device 1G.

[0134] In the preparation stage ST2, the environmental adjustment system ES1 generates airflow in the ventilation area R1, thereby supporting user H1, who is about to start work in the ventilation area R1, in concentrating their attention.

[0135] Furthermore, if the control system CS1 detects, based on the captured image, that a user H1 seated in the ventilation area R1 has performed a predetermined specific action (for example, raising one hand), it may control the ventilation device 1G to start the ventilation operation of the ventilation device 1G.

[0136] Furthermore, the control system CS1 may use other-person detection means, such as a pyroelectric sensor, to detect users within the air-blowing area R1, and measure the time that user H1 is staying in the air-blowing area R1.

[0137] (11.3) Concentration Stage ST3 In the preparation stage ST2, the control system CS1 detects the state of user H1 based on the captured image. When user H1 is in a specific state, the control system CS1 switches the control mode from the preparation stage ST2 to the centralization stage ST3. In the centralization stage ST3, the control system CS1 displays a video on the display surface G1 indicating that it is cutting off communication with user H1 as a video control.

[0138] In order to reduce the risk of infectious diseases these days, people are increasingly avoiding in-person meetings and using web conferencing instead. When people are sitting in their seats and participating in a web conference, it is often difficult for onlookers to tell whether they are in a meeting or if it is okay to talk to them, leading to frequent interruptions and causing inconvenience for those participating in the web conference. To prevent this problem, it is conceivable to display a message on the ceiling indicating that interruptions are not permitted. Therefore, the Concentration Stage ST3 attempts to improve work productivity and efficiency by preventing interruptions that often occur during web conferences.

[0139] For example, when the control system CS1 is in a meeting, it displays a video on the display screen G1 informing user H1 that communication with H1 is being cut off. At this time, the display screen G1 will show a message such as, "I am in a remote meeting. Please do not speak to me."

[0140] Furthermore, the control system CS1 may also be equipped with an access control function for the air-conditioned space 9. In this case, the control system CS1 has pre-stored information on people who are permitted to enter the air-conditioned space 9, and when it identifies a person who has entered the air-conditioned space 9, it can read the address information of an information terminal such as a tablet or smartphone that the person is carrying. Then, based on the captured image, if the control system CS1 detects a person H2 approaching user H1, it sends a message to the information terminal carried by person H2, such as, "User H1 is in a remote meeting. Please do not speak to user H1."

[0141] Therefore, user H1 can concentrate without being disturbed by those around them.

[0142] (11.4) Casual chat stage ST4 In the centralized stage ST3, the control system CS1 detects the state of user H1 based on the captured image. If user H1's state is not a specific state, the control system CS1 switches the control mode from the centralized stage ST3 to the casual conversation stage ST4. In the casual conversation stage ST4, the control system CS1 displays a video on the display surface G1 indicating that communication with user H1 is possible, as a form of video control.

[0143] For example, if the control system CS1 is not in a meeting, it will display a video on the display screen G1 indicating that communication with user H1 is possible as a video control. At this time, a message such as "Welcome" will be displayed on the display screen G1.

[0144] Furthermore, the control system CS1 may also be equipped with an access control function for the air-conditioned space 9. In this case, the control system CS1 has in advance stored information on people who are permitted to enter the air-conditioned space 9, and when it identifies a person who has entered the air-conditioned space 9, it can read the address information of an information terminal such as a tablet or smartphone that the person is carrying. Then, based on the captured image, when the control system CS1 detects a person H2 approaching user H1, it sends a message such as "User H1 is available to communicate." to the information terminal carried by person H2.

[0145] Therefore, people H2 around user H1 can communicate with user H1 without interfering with user H1.

[0146] (11.5) Creative Stage ST5 In the concentration stage ST3 or the casual conversation stage ST4, the control system CS1 detects the state of user H1 based on the captured image. When user H1 performs a specific action, the control system CS1 switches the control mode from the concentration stage ST3 or casual conversation stage ST4 to the creative stage ST5. In the creative stage ST5, the control system CS1 displays an image on the display surface G1 that has a relaxing effect on user H1 as part of the video control.

[0147] For example, user H1 may slouch and gaze up at the ceiling, lost in thought. Therefore, if user H1 continues to gaze up at the ceiling for a predetermined period of time, the control system CS1 displays an image on the display surface G1 that has a relaxing effect on user H1. The relaxing image could be an environmental image depicting nature, such as mountains, forests, woods, the sky, stars, the moon, sunset, sunlight filtering through trees, a bonfire, or the sea. Alternatively, the relaxing image could be a healing image with changing colors and shapes. By viewing the display surface G1, user H1 can relax and refresh themselves.

[0148] Furthermore, it is preferable that the control system CS1 operating in the creative stage ST5 varies the amount of air discharged from the air outlet 13h of the blower 1G with 1 / f fluctuation. User H1 can feel a natural breeze from the airflow that fluctuates with 1 / f fluctuation, allowing them to relax and refresh.

[0149] (11.6) Washing stage ST6 In the concentration stage ST3, the casual conversation stage ST4, or the creative stage ST5, the control system CS1 detects the state or actions of user H1 based on the captured images. When user H1 leaves the airflow area R1, the control system CS1 switches the control mode from the concentration stage ST3, the casual conversation stage ST4, or the creative stage ST5 to the cleaning stage ST6. In the cleaning stage ST6, the control system CS1 cleans the airflow area R1 by causing air to be discharged from the air outlet 13h of the blower 1G toward the airflow area R1 as part of the airflow control.

[0150] The control system CS1 blows air from the blower 1G onto the desks and chairs in the airflow area R1, blowing away dust, debris, and other contaminants attached to them. Therefore, when the user H1 leaves the airflow area R1, the control system CS1 cleans the airflow area R1, keeping it clean.

[0151] Furthermore, it is preferable that the blower 1G is equipped with the discharge device 2 (see Figure 13) of the first modified example described above. In this case, the blower 1G can generate active ingredients such as radicals, nanometer-sized charged fine particles of water containing radicals, or air ions using the discharge device 2, and can add these active ingredients to the air blown into the blowing area R1. As a result, it becomes possible to disinfect desks and chairs within the blowing area R1.

[0152] Furthermore, the control system CS1 operating in the cleaning stage ST6 displays on the display surface G1 that the air blowing area R1 is being cleaned. The image displayed on the display surface G1 in the cleaning stage ST6 is, for example, an image with colors that allow the user to intuitively recognize that the air blowing area R1 is unavailable. In this case, when the air blowing area R1 is being cleaned, it is preferable for the control system CS1 to control the image color by making it a complementary or opposite color to the surrounding colors of the display surface G1. As a result, the image displayed on the display surface G1 can be made more prominent, allowing the user H1 to easily recognize the space being cleaned and feel a sense of security.

[0153] Furthermore, the control system CS1 operating in the cleaning stage ST6 may display a message such as "Cleaning in progress" on the display surface G1.

[0154] (11.7) Flow of each stage Basically, the control mode of the control system CS1 completes one cycle by transitioning in the following order: Selection Stage ST1 → Preparation Stage ST2 → Focus Stage ST3 → Casual Conversation Stage ST4 → Creation Stage ST5 → Cleaning Stage ST6. However, after Preparation Stage ST2, the system may transition to any of Focus Stage ST3, Casual Conversation Stage ST4, or Creation Stage ST5. Furthermore, the number of times each of Focus Stage ST3, Casual Conversation Stage ST4, and Creation Stage ST5 is executed in one cycle is not limited to a specific number of times.

[0155] In other words, it is sufficient to transition from the cleaning stage ST6 to the selection stage ST1, and the order of the concentration stage ST3, the small talk stage ST4, and the creation stage ST5, as well as the number of times each of the concentration stage ST3, the small talk stage ST4, and the creation stage ST5 is executed, is not limited to a specific form.

[0156] (11.8) Gestures The control system CS1 may determine the start and end of at least one of the above-described stages based on the gestures (actions) of user H1.

[0157] Specifically, the control system CS1 determines the gestures performed by user H1 based on the images captured by the imaging device C1. The gestures performed by user H1 are predetermined and correspond to the start or end of each stage. Each of the multiple gestures is a distinct action from the others. For example, the gesture corresponding to the start of the preparation stage ST2 is "raising one hand". The gesture corresponding to the start of the creative stage ST5 is "clapping both hands behind the head". The gesture corresponding to the start of the washing stage ST6 is "waving one hand".

[0158] (12) Summary The first embodiment of the blower (1, 1A-1F) according to the above-described embodiment comprises a housing (13), a rectifier plate (15), and a display surface (G1). The housing (13) is formed in the shape of a box having an internal space (130), and has an air intake port (13g) for supplying air to the internal space (130), an air outlet (13h) for expelling air from the internal space (130), and a constriction portion (13i) that narrows the internal space (130) toward the periphery of the air outlet (13h). The rectifier plate (15) is positioned between the air intake port (13g) and the air outlet (13h). The display surface (G1) is located in the internal space (130) and displays an image toward the outside of the housing (13) from the air outlet (13h).

[0159] The aforementioned blower devices (1, 1A-1F) can have their functions expanded while keeping their size down.

[0160] In the second embodiment of the blower (1, 1A-1F) according to the embodiment, in the first embodiment, the amount of air discharged from the air outlet (13h) is preferably fluctuated with 1 / f fluctuation, and the image is preferably an image that has a relaxing effect on people.

[0161] The aforementioned air blowers (1, 1A-1F) can provide a natural breeze through airflow that fluctuates with 1 / f fluctuations, allowing people to relax.

[0162] In the third embodiment of the blower (1, 1A-1F) according to the embodiment, the blower (2) further comprises a discharge device (2) that generates an active ingredient by discharge in the first or second embodiment, and it is preferable that the air discharged from the air outlet (13h) contains the active ingredient.

[0163] The aforementioned blower devices (1, 1A-1F) can provide useful effects such as deodorization, moisturizing, freshness preservation, and virus inactivation.

[0164] In the fourth embodiment of the blower (1, 1A-1F), it is preferable that the blower (12) that supplies air to the air intake (13g) is further provided in any one of the first to third embodiments.

[0165] The aforementioned ventilation device (1, 1A-1F) does not require receiving air from the air conditioning system via ducts, thus eliminating the need for piping work. As a result, installation of the ventilation device (1, 1A-1F) on ceilings and other locations can be easily performed.

[0166] In the fifth embodiment of the blower (1, 1A-1F), the blower (1, 1A-1F) comprises a plurality of blowers (12) in the fourth embodiment, and it is preferable that the plurality of blowers (12) operate in one of a plurality of blowing modes. The plurality of blowing modes include a first blowing mode, a second blowing mode, and a third blowing mode. In the first blowing mode, the plurality of blowers (12) operate individually. In the second blowing mode, the plurality of blowers (12) operate synchronously with each other. In the third blowing mode, at least one of the plurality of blowers (12) draws air from the internal space (130) through the intake port (13g).

[0167] The aforementioned blower devices (1, 1A-1F) can improve convenience by operating in a blower mode that meets human needs.

[0168] In the sixth embodiment of the blower device (1, 1A-1F), it is preferable that in any one of the first to fifth embodiments, a frame (132) surrounding the air outlet (13h) is further provided. The frame (132) is placed in a grid (95) which is composed of a plurality of frameworks (92) arranged in a lattice pattern. The outer dimensions of the frame (132) are in accordance with the standard dimensions of the grid (95).

[0169] The aforementioned blower devices (1, 1A-1F) can improve ease of installation.

[0170] In the seventh embodiment of the blower (1, 1A-1F) according to the embodiment, in any one of the first to sixth embodiments, it is preferable that the internal space (130) has an expanded space (134) that widens as it approaches the rectifier plate (15) from the intake port (13g).

[0171] The aforementioned blowers (1, 1A-1F) can reduce air pressure loss in the internal space (130) and improve blowing efficiency.

[0172] The eighth embodiment of the blower (1, 1A-1F) preferably further comprises a blower control unit (17a) in any one of the first to seventh embodiments that controls the amount of air discharged from the air outlet (13h) in accordance with the received blower control signal.

[0173] The aforementioned blower devices (1, 1A-1F) can improve convenience through blower control.

[0174] In the ninth embodiment of the blower (1, 1A-1F), it is preferable that in any one of the first to eighth embodiments, the blower further comprises a video switching unit (17b) that switches the video displayed on the display surface (G1) in accordance with the received video control signal.

[0175] The aforementioned blower devices (1, 1A-1F) can be made more convenient by switching between video feeds.

[0176] In the tenth embodiment of the blower (1F), it is preferable that in any one of the first to ninth embodiments, a light source (5) is further provided which is arranged in the internal space (130) and emits illumination light. The illumination light is emitted from the display surface (G1) toward the air outlet (13h), and the illumination light emitted from the display surface (G1) is diffuse light.

[0177] The aforementioned blower (1F) can have its functions further expanded.

[0178] In the 11th embodiment of the blower (1F), it is preferable that the blower (1F) further comprises an operation mode switching unit (17f) that selects one of a plurality of operation modes, including an image mode that displays an image on the display surface (G1) and an illumination mode that emits illumination light from the display surface (G1), in accordance with the received operation mode signal.

[0179] The aforementioned blower (1F) can be made more convenient by switching its operating mode.

[0180] In the 12th embodiment of the blower (1, 1A-1F), in any one of the first to 11th embodiments, when a device selection signal is received to select at least one blower from a plurality of blowers, it is preferable that the image displayed on the display surface (G1) flashes if the device selection signal selects the device itself.

[0181] The aforementioned blowers (1, 1A-1F) can notify others of their presence.

[0182] In the thirteenth embodiment of the blower (1, 1A-1F) according to the embodiment, it is preferable that in any one of the first to twelfth embodiments, there are multiple intake ports (13g), and the directions in which air is supplied from the multiple intake ports (13g) into the internal space (130) are different from each other.

[0183] The aforementioned blowers (1, 1A-1F) can create a surface airflow from the air outlet (13h).

[0184] In the 14th embodiment of the blower (1, 1A-1F), it is preferable that the blower (1, 1A-1F) further comprises an opening / closing member (3) in any one of the first to 13 embodiments. The opening / closing member (3) is configured to be displaceable between an open state that opens at least a portion of the gap between the periphery of the rectifier plate (15) and the inner surface of the housing (13) and a closed state that closes at least a portion of the gap.

[0185] The aforementioned blower devices (1, 1A-1F) can control the direction of the air blown out from the air outlet (13h).

[0186] In the 15th embodiment of the blower (1, 1A-1F), it is preferable that in any one of the first to 14th embodiments, a rectifier plate drive unit (41) moves the rectifier plate (15) along the opposing direction between the intake port (13g) and the outlet port (13h).

[0187] The aforementioned blowers (1, 1A-1F) can control the airflow area of ​​the air blown out from the air outlet (13h).

[0188] In the sixteenth embodiment of the blower (1, 1A-1D), it is preferable that in any one of the first to fifteenth embodiments, the blower (151) further comprises a display device (151) located in the internal space (130) and having a light-emitting screen (151a) that emits an image. The display surface (G1) is the light-emitting screen (151a).

[0189] The aforementioned blower devices (1, 1A-1D) can implement a display function without using a projector or similar device.

[0190] In the 17th embodiment of the blower (1, 1A-1D), in the 16th embodiment, the display device (151) is preferably plate-shaped and also serves as a rectifier plate (15).

[0191] The aforementioned blower devices (1, 1A-1D) can be simplified in structure.

[0192] In the 18th embodiment of the blower (1E, 1F), in any one of the first to 15 embodiments, the display surface (G1) is preferably a projection surface (152a) on which an image is projected via the air outlet (13h).

[0193] The aforementioned blowers (1E, 1F) can be made even smaller.

[0194] In the 19th embodiment of the blower (1, 1A-1F), in any one of the first to 18th embodiments, it is preferable that the rectifier plate (15) has a first surface (15a) facing the intake port (13g) and a second surface (15b) facing the outlet port (13h). The display surface (G1) is provided on the second surface (15b).

[0195] The aforementioned blower devices (1, 1A-1F) can have their functions expanded while keeping their size down.

[0196] The 20th embodiment of the blower system (VS1) comprises one blower device (1E, 1F) of any one of the first to 19 embodiments and a projector device (7) that projects an image onto a display surface (G1).

[0197] The aforementioned ventilation system (VS1) extends the functionality of the ventilation devices (1E, 1F) while suppressing the need to increase the size of the ventilation devices (1E, 1F).

[0198] An environmental control system (ES1) according to the 21st embodiment comprises a blower (1G) of any one of the first to 19 embodiments installed above the air-conditioned space (9), and a control system (CS1). The control system (CS1) performs airflow control, which controls the air discharged from the air outlet (13h) toward the airflow area (R1) below the blower (1G), and video control, which controls the video displayed on the display surface (G1).

[0199] The above-described environmental control system (ES1) can extend the functionality of the blower (1G) while suppressing the need to increase the size of the blower (1G).

[0200] In the 22nd embodiment of the environmental adjustment system (ES1), in the 21st embodiment, it is preferable that the control system (CS1) displays a video on the display surface (G1) as video control, indicating that the use of the air-blowing area (R1) is recommended when the state of the air-blowing area (R1) reaches a specific state.

[0201] The aforementioned environmental adjustment system (ES1) allows the user (H1) to easily recognize available space.

[0202] In the 23rd embodiment of the environmental adjustment system (ES1), in the 21st embodiment, it is preferable that the control system (CS1) initiates a fan operation to expel air from the air outlet (13h) as fan control when the time spent by the user (H1) in the fan area (R1) exceeds a time threshold.

[0203] The aforementioned environmental adjustment system (ES1) can help users (H1) who are about to start working in the ventilation area (R1) to concentrate by generating airflow in the ventilation area (R1).

[0204] In the 24th embodiment of the environmental adjustment system (ES1), in the 21st embodiment, it is preferable that the control system (CS1) displays an image on the display surface (G1) as video control to indicate that communication with the user (H1) is being cut off when the state of the user (H1) present in the air supply area (R1) is in a specific state.

[0205] In the aforementioned environmental adjustment system (ES1), the user (H1) can concentrate without being disturbed by those around them.

[0206] In the environmental adjustment system (ES1) of the 25th embodiment, in the 24th embodiment, it is preferable that the control system (CS1) sends a message to an information terminal carried by a person (H2) approaching the air supply area (R1) informing them that communication with the user (H1) is being cut off when the user (H1) is in a specific state.

[0207] In the aforementioned environmental adjustment system (ES1), the user (H1) can concentrate without being disturbed by the people around them (H2).

[0208] In the environmental adjustment system (ES1) of the 26th embodiment, in the 24th or 25th embodiment, the control system (CS1) preferably displays an image on the display surface (G1) as video control to indicate that communication with the user (H1) is possible, unless the user's (H1) state is in a specific state.

[0209] The aforementioned environmental adjustment system (ES1) allows people (H2) around the user (H1) to communicate with the user (H1) without interfering with the user (H1).

[0210] In the environmental adjustment system (ES1) of the 27th embodiment, in the 26th embodiment, it is preferable that the control system (CS1) sends a message to an information terminal carried by a person (H2) approaching the air supply area (R1) indicating that communication with the user (H1) is possible, unless the user (H1) is in a specific state.

[0211] The aforementioned environmental adjustment system (ES1) allows people (H2) around the user (H1) to communicate with the user (H1) without interfering with the user (H1).

[0212] In the environmental adjustment system (ES1) of the 28th embodiment, in the 21st embodiment, it is preferable that the control system (CS1) displays an image on the display surface (G1) that has the effect of relaxing the user (H1) when the user (H1) present in the air supply area (R1) performs a specific action, as a video control.

[0213] The aforementioned environment adjustment system (ES1) can refresh the user (H1).

[0214] In the environmental conditioning system (ES1) of the 29th embodiment, in the 21st embodiment, the control system (CS1) preferably cleans the air-blowing area (R1) by causing the air outlet (13h) to discharge air toward the air-blowing area (R1) as an air-blowing control when a user (H1) present in the air-blowing area (R1) leaves the air-blowing area (R1).

[0215] The aforementioned environmental control system (ES1) can keep the ventilation area (R1) clean.

[0216] In the 30th embodiment of the environmental conditioning system (ES1), in the 29th embodiment, when the air blowing area (R1) is being cleaned, the control system (CS1) preferably sets the color of the image to be the complementary or opposite color of the color surrounding the display surface (G1) as video control.

[0217] The aforementioned environmental adjustment system (ES1) can make the image displayed on the display surface (G1) stand out.

[0218] In the 31st embodiment of the environmental adjustment system (ES1), it is preferable that in any one of the 21st to 30th embodiments, an imaging device (C1) further comprises an imaging device (C1) that images a user (H1) present in the air-blowing area (R1). The control system (CS1) switches the image displayed on the display surface (G1) according to the result of analyzing the user's (H1) actions or state from the image captured by the imaging device (C1).

[0219] The aforementioned environmental control system (ES1) can easily grasp the actions or status of users (H1) present in the ventilation area (R1). [Explanation of symbols]

[0220] 1, 1A-1G blower 13 cabinets 13g air intake 13h Air vent 13i Aperture section 130 Interior space 132 Frame 134 Extended Space 12 Blower 15 Rectifier plate 15a 1st page 15b Side 2 151 Display device 151a Light-emitting screen 152a Projection surface 17a Air blower control unit 17b Video switching section G1 display surface 2 Discharge device 3 Opening and closing member 41 Rectifier plate drive unit 5 light source 7. Projector equipment 92 T-bar (framework) 95 grid VS1 Blower System ES1 Environmental Adjustment System CS1 Control System C1 Imaging device R1 Airflow Area H1 User H2 people

Claims

1. A housing formed in the shape of a box having an internal space, having an air intake for supplying air to the internal space, an air outlet for expelling the air from the internal space, and a constricted portion that narrows the internal space toward the periphery of the air outlet, A rectifier plate is positioned between the air intake port and the air outlet port, The enclosure comprises a display surface located in the aforementioned internal space and displaying an image from the air outlet toward the outside of the enclosure, The intake port and the outlet port face each other. The rectifier plate is not supported from the side of the housing where the air outlet is located, but is supported from the side of the housing where the air intake is located. Blower.

2. The amount of air discharged from the aforementioned air outlet fluctuates with 1 / f fluctuations. The aforementioned video is a video that has a relaxing effect on people. A blower according to claim 1.

3. The device further includes a discharge device that generates active ingredients through electrical discharge, The air discharged from the aforementioned air outlet contains the aforementioned active ingredient. A blower according to claim 1 or 2.

4. The system further comprises a blower that supplies the air to the air intake. A blower according to claim 1 or 2.

5. The system is equipped with multiple blowers, The aforementioned multiple blowers operate in one of the multiple blowing modes, The aforementioned multiple airflow modes are: A first blowing mode in which the multiple blowers operate individually, A second blowing mode in which the aforementioned multiple blowers operate in synchronous manner, At least one of the plurality of blowers blows the air from the intake port into the internal space A third airflow mode that sucks in air, and The blower according to claim 4.

6. The frame surrounding the aforementioned air outlet is further provided, The aforementioned frame is arranged in a grid composed of multiple frameworks arranged in a lattice pattern. The outer dimensions of the frame are in accordance with the standard dimensions of the grid. A blower according to claim 1 or 2.

7. The aforementioned internal space has an expanding space that widens as it approaches the rectifier plate from the intake port. A blower according to claim 1 or 2.

8. The system further includes a blower control unit that controls the amount of air discharged from the air outlet in response to a received blower control signal. A blower according to claim 1 or 2.

9. The system further includes a video switching unit that switches the video displayed on the display surface in accordance with the received video control signal. A blower according to claim 1 or 2.

10. The interior space is further equipped with a light source that emits illumination light, The illumination light is emitted from the display surface toward the air outlet. The illumination light emitted from the display surface is diffuse light. A blower according to claim 1 or 2.

11. The system further includes an operating mode switching unit that selects one of a plurality of operating modes, including a video mode for displaying the image on the display surface and an illumination mode for emitting illumination light from the display surface, in response to a received operating mode signal. The blower according to claim 10.

12. When a device selection signal is received to select at least one blower from multiple blowers, if the device selection signal selects the current device, the image displayed on the display surface flashes. A blower according to claim 1 or 2.

13. Having multiple air intake ports, The directions in which the air is sent from the plurality of intake ports into the internal space are different from each other. A blower according to claim 1 or 2.

14. Further equipped with opening and closing members, The opening / closing member is configured to be displaceable between an open state, which opens at least a portion of the gap between the periphery of the rectifier plate and the inner surface of the housing, and a closed state, which closes at least a portion of the gap. A blower according to claim 1 or 2.

15. The internal space is further provided with a display device having a light-emitting screen that emits the image, The display surface is the light-emitting screen. A blower according to claim 1 or 2.

16. The display device is plate-shaped and also serves as the rectifier plate. The blower according to claim 15.

17. The display surface is a projection surface on which the image is projected via the air outlet. A blower according to claim 1 or 2.

18. The rectifier plate has a first surface facing the intake port and a second surface facing the air outlet, The display surface is provided on the second surface. A blower according to claim 1 or 2.

19. A blower according to claim 1 or 2, The system includes a projector device that projects the aforementioned image onto the display surface. Ventilation system.

Images