Blower and Blower System

Abstract

To provide an air blowing device that can realize both reduction of weight and securing of strength, and an air blowing system.SOLUTION: An air blowing device (3) comprises a housing (3A) and a straightening plate (3B). The housing (3A) is formed in a box shape comprising an internal space (30b), and comprises an air supply port (321b) for supplying air into the internal space (30b), and an air blowing port (30a) for discharging air to the outside of the internal space (30b). The straightening plate (3B) is arranged between the air supply port (321b) and the air blowing port (30a). The housing (3A) comprises: a frame (31) formed of metal, and comprising at least one through hole (311b or 312a); and a closing body (32) formed of resin, and closing the at least one through hole (311b or 312a) of the frame (31).SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] The air purifying device of Patent Document 1 includes a casing having an air inlet and an air outlet, and a guide plate is provided inside the casing. The guide plate is disposed at approximately the center of the casing, and a gap is provided between the guide plate and the peripheral plate of the casing to allow air to pass through. Furthermore, a baffle plate that covers the inner periphery of the air outlet is provided below the guide plate. The guide plate guides 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 straightens the air flow toward the opening. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-112755 A Summary of the Invention [Problem to be solved by the invention]

[0004] Air conditioners such as the air purifier of Patent Document 1 are installed in a structure such as a ceiling. For such air conditioners, it is required to achieve both light weight and strength in order to ensure ease of installation and stable function as an air conditioner.

[0005] An object of the present disclosure is to provide a blower device and a blower system that can achieve both weight reduction and sufficient strength. [Means for solving the problem]

[0006] The blower device according to one aspect of the present disclosure includes a housing, a straightening vane, and a drive mechanism. The housing is formed in a box shape having an internal space, and has an air inlet for feeding air into the internal space and an air outlet for blowing air into the internal space. Air-conditioned space The airflow adjusting device has an air outlet for discharging the air to the outside. The airflow adjusting device is disposed between the air intake port and the air outlet. The driving mechanism adjusts the airflow adjusting device. , in a direction intersecting the axial direction of the air outlet The housing has a frame formed of metal and having at least one through hole, and a blocking body formed of resin and blocking the at least one through hole of the frame. The driving mechanism moves the straightening plate. In the intersecting direction It has an electric actuator that moves it.

[0007] An air blowing system according to one embodiment of the present disclosure includes the above-mentioned air blowing device that expels first air as the air from an air outlet into an air-conditioned space, and a chamber device that draws in air from the air-conditioned space as second air, draws in air from outside as third air, and generates air mixed with the second air and the third air as the first air. Effect of the Invention

[0008] As described above, the present disclosure has an effect of realizing both weight reduction and ensuring strength. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a side view showing a configuration of an air blowing system including an air blowing device according to an embodiment. [Diagram 2] FIG. 2 is a perspective view showing a blower device included in the blower system. [Diagram 3] FIG. 3 is a cross-sectional view showing the blower device of the same. [Figure 4] FIG. 4 is an exploded perspective view showing the blower device of the same. [Diagram 5] Fig. 5A is a plan view showing a top plate frame included in the blower device of the same Fig. 5B is a plan view showing a frame body frame included in the blower device of the same ... [Figure 6] FIG. 6 is a perspective view showing the blower device of the first modified example of the above embodiment. [Figure 7] FIG. 7 is a plan view showing a top plate frame included in the blower device of the second modified example. [Figure 8] FIG. 8 is a plan view showing a top plate frame included in the blower device of the third modified example. [Figure 9] FIG. 9 is a diagram showing the configuration of an airflow control system using the above-mentioned blowing system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present disclosure relates generally to a blower device and a blower system, and more particularly to a blower device and a blower system including a straightening vane.

[0011] The embodiment described below is merely an example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0012] In the following description, unless otherwise specified, an X-axis, a Y-axis, and a Z-axis that are orthogonal to each other are defined in FIG. 2. For convenience, one of the two directions along the X-axis is defined as the rightward direction, and the other as the leftward direction. In addition, one of the two directions along the Y-axis is defined as the forward direction, and the other as the backward direction. In addition, one of the two directions along the Z-axis is defined as the upward direction, and the other as the downward direction.

[0013] (Embodiment) (1) Overview of the ventilation system 1 shows the configuration of a ventilation system 1 according to the present embodiment. The ventilation system 1 is used in facilities such as office buildings, offices, stores, factories, and commercial facilities. The ventilation system 1 may also be used in apartment buildings, detached houses, and the like.

[0014] The air blowing system 1 is attached to a ceiling 91 of the air-conditioned space 9. In this case, the ceiling 91 corresponds to a structure to which the air blowing system 1 is attached.

[0015] The air blowing system 1 includes an air blowing device 3, a chamber device 4, a duct 5, and a controller K1. The controller K1 drives the chamber device 4 to control the operation of the chamber device 4. The chamber device 4 draws in air in the air-conditioned space 9 as the second air A2. Furthermore, the chamber device 4 is connected to an external air passage 2 such as a duct arranged in the ceiling space 92 above the ceiling 91, and receives the third air A3 sent from an air conditioning facility (not shown) through the external air passage 2. The chamber device 4 then generates air obtained by mixing the second air A2 and the third air A3 as the first air A1. The air blowing device 3 and the chamber device 4 are connected to each other through a duct 5, and the chamber device 4 supplies the first air A1 to the air blowing device 3 by flowing the first air A1 into the duct 5. The air blowing device 3 blows out the first air A1 supplied from the duct 5 into the air-conditioned space 9.

[0016] The third air A3 is conditioned air generated by an air conditioning system, and is air in which at least one of temperature, humidity, and cleanliness has been adjusted. That is, the ventilation system 1 generates the first air A1 by mixing the second air A2 and the third air A3, so that the first air A1 includes conditioned air. The conditioned air may be air to which a fragrance has been added or to which the amount of viruses has been reduced.

[0017] (2) Configuration of the blower As shown in FIGS. 1 to 4, the air blower 3 includes a housing 3A and a straightening plate 3B.

[0018] 1, the blower 3 is embedded in a mounting hole 91a in a ceiling 91. In order to embed the housing 3A of the blower 3 in the mounting hole 91a in the ceiling 91, the size of the mounting hole 91a is slightly larger than the size of the housing 3A. As a result, a gap is generated between the outer periphery of the housing 3A embedded in the mounting hole 91a and the periphery of the mounting hole 91a. Therefore, in order to hide the gap generated in the ceiling 91, a frame 36 is attached to the housing 3A. The frame 36 has a rectangular frame shape and is attached to the lower end of the housing 3A.

[0019] (2.1) Housing The housing 3A includes a frame 31 and a blocking body 32, and is formed in a hollow rectangular box shape. A rectangular opening is formed as an air outlet 30a on the bottom surface of the housing 3A. The air outlet 30a is a rectangular flat surface along the XY plane (a plane defined by the X-axis and the Y-axis), and the axial direction of the air outlet 30a is along the Z-axis.

[0020] (2.1.1) Frame The frame 31 is formed from a galvanized steel plate, and includes a top plate frame 311 and a frame body frame 312 .

[0021] (2.1.1.1) Top frame The tabletop frame 311 is a square plate-like frame corresponding to the upper surface of the frame 31. As shown in Fig. 5A, the tabletop frame 311 has a circular insertion hole 311a formed in the center of the square metal sheet, and four through holes 311b of the same shape formed around the insertion hole 311a. Each of the four through holes 311b is formed in a range extending from each of the four corners of the tabletop frame 311 to just before the insertion hole 311a. The above-mentioned insertion holes 311a and through holes 311b are preferably lightening holes formed by sheet metal processing or press processing.

[0022] The top frame 311, in which the insertion holes 311a and through holes 311b are formed, is integrally provided with a square rectangular frame 311c having four sides and a beam portion 311d formed inside the rectangular frame 311c. The beam portion 311d is formed in a substantially + shape that connects each side of the rectangular frame 311c to each other.

[0023] The beam portion 311d is integrally provided with an annular plate-shaped annular portion 311e and a connecting portion 311f that connects the annular portion 311e and the rectangular frame 311c. The annular portion 311e is located at the center of the rectangular frame 311c and surrounds the insertion hole 311a. That is, the inside of the annular portion 311e becomes the insertion hole 311a. The connecting portion 311f connects the outer periphery of the annular portion 311e to the centers of the four sides of the rectangular frame 311c at 90 degree intervals. The through hole 311b is surrounded by the annular portion 311e, the connecting portion 311f, and the rectangular frame 311c. As a result, the four through holes 311b are formed in a lattice pattern arranged in the left-right direction along the X axis and the front-rear direction along the Y axis.

[0024] (2.1.1.2) Frame The frame 312 is a rectangular frame corresponding to the side surfaces (left, right, front, and rear) of the frame 31, and is formed by bending a metal plate. The upper end of the frame 312 is attached to the periphery of the top frame 311 by caulking or screwing.

[0025] As shown in Fig. 5B, two rectangular through holes 312a are formed side by side in the circumferential direction of the frame body frame 312 on each of the four faces of the frame body frame 312. That is, the frame body frame 312 having four faces is provided with eight rectangular through holes 312a. Note that the above-mentioned through holes 312a are preferably lightening holes produced by sheet metal processing or press processing.

[0026] The frame 312 having the above-mentioned through hole 312a formed therein is integrally provided with a rectangular frame 312b formed along the outer periphery of each face of the frame 312, and a rectangular beam portion 312c connecting the centers of two opposing sides of the rectangular frame 312b in the vertical direction.

[0027] The upper and lower surfaces of the frame body frame 312 are open. A square frame-shaped flange portion 312d extends from the lower side of the rectangular frame 312b of the frame body frame 312 toward the inside of the frame body frame 312. The flange portion 312d is preferably formed integrally with the rectangular frame 312b by bending a metal plate. The opening on the lower surface of the frame body frame 312, the four sides of which are surrounded by the flange portion 312d, becomes the air outlet 30a of the housing 3A.

[0028] (2.1.2) Obstruction body The closure body 32 includes a top panel 321 and a frame panel 322 .

[0029] The top panel 321 includes a flat portion 321a, an air supply port 321b, and a cylindrical body 321c.

[0030] The flat plate portion 321a and the air supply port 321b are integrally formed from hard polystyrene foam. Specifically, the flat plate portion 321a is a square plate-shaped panel that corresponds to the upper surface of the blocking body 32, and closes the through-hole 311b of the top plate frame 311. A cylindrical air supply port 321b with both ends open is formed in the center of the flat plate portion 321a.

[0031] The cylinder 321c is a cylindrical cylinder made of polypropylene (PP) resin. The cylinder 321c is insert-molded into the air inlet 321b so as to be coaxial with the air inlet 321b. The outer diameter of the cylinder 321c is smaller than that of the air inlet 321b, and the outer circumferential surface of the cylinder 321c is in contact with the inner circumferential surface of the air inlet 321b. The upper end of the cylinder 321c protrudes upward from the upper end of the air inlet 321b. A ring-shaped flange 321d (see FIG. 3) is integrally provided on the outer circumferential surface of the lower end of the cylinder 321c, and the flange 321d functions as a stopper that prevents the cylinder 321c from coming off the air inlet 321b. The upper end side of the cylinder 321c is fitted into the end of the duct 5 (see FIG. 3).

[0032] The frame panel 322 is made of hard polystyrene foam and is a square frame corresponding to the side surfaces (left, right, front, and rear) of the blocking body 32, and has four side walls 322a corresponding to the left, right, front, and rear surfaces, respectively. The frame panel 322 closes the through hole 312a of the frame frame 312. The upper end of the frame panel 322 is in close contact with the lower surface of the top panel 321.

[0033] (2.2) Current plate The current plate 3B is formed in the shape of a square flat plate by resin molding using polypropylene as a material.

[0034] The current plate 3B has a first surface 33a and a second surface 33b that face each other in the thickness direction, and is disposed in the housing 3A. The lower ends of cylindrical supports 33c are attached to the four corners of the current plate 3B, and the supports 33c are fixed to a rectangular frame 311c of the top plate frame 311.

[0035] (2.3) Blower In the blower 3, the housing 3A and the flow straightening plate 3B are combined as follows.

[0036] The top panel 321 is disposed relative to the top frame 311 such that the upper surface of the top panel 321 contacts the lower surface of the top frame 311. That is, the through hole 311b of the top frame 311 is blocked by the top panel 321. At this time, the air intake port 321b of the top panel 321 passes through the insertion hole 311a of the top frame 311 from bottom to top, and the air intake port 321b and the cylinder 321c protrude upward from the top frame 311.

[0037] The current plate 3B is located below the top panel 321, and the upper ends of the four supports 33c of the current plate 3B pass through insertion holes (not shown) at the four corners of the top panel 321 and are fixed to fixing parts 311g (see FIG. 5) at the four corners of the rectangular frame 311c by screws, rivets, etc. At this time, it is preferable that the flat part 321a of the top panel 321 is sandwiched between the supports 33c and the top frame 311.

[0038] The upper end of the frame panel 322 is attached to the lower surface of the top panel 321 by crimping, gluing, welding, screwing, or the like. In other words, the top panel 321 and the frame panel 322 form a rectangular box-shaped closure 32, and the top opening of the frame panel 322 is covered by the top panel 321.

[0039] The frame body panel 322 is fitted into the frame body frame 312 from above so that the inner peripheral surface of the frame body frame 312 contacts the outer peripheral surface of the frame body panel 322. In other words, the through hole 312a of the frame body frame 312 is blocked by the frame body panel 322. The upper end of the frame body frame 312 is attached to the periphery of the top plate frame 311 by caulking or screwing, etc.

[0040] The lower end of the frame panel 322 abuts against the upper surface of the flange 312d of the frame frame 312. The lower opening of the frame panel 322 is narrowed by the flange 312d, and the square opening inside the flange 312d becomes the air outlet 30a. In this way, the flange 312d constituting the narrowing portion is formed on the periphery of the air outlet 30a. The narrowing portion narrows the part of the internal space 30b on the air outlet 30a side so as to narrow the internal space 30b toward the periphery of the air outlet 30a. The flange 312d, which is an example of a narrowing portion, extends in a flange-like shape along the XY plane from the lower end of the rectangular frame 312b toward the air outlet 30a. That is, the flange 312d extends from the periphery of the air outlet 30a to the lower end of the rectangular frame 312b.

[0041] If the space surrounded by the top panel 321 and the frame panel 322 is defined as an internal space 30b of the housing 3A, then a straightening plate 3B is housed in the internal space 30b. A first surface (upper surface) 33a of the straightening plate 3B faces the top panel 321, and a second surface (lower surface) 33b of the straightening plate 3B faces the air outlet 30a.

[0042] A gap constituting a communication portion 30c (see FIG. 3) is generated between the inner surface of the side wall 322a of the frame panel 322 and the periphery of the current plate 3B. That is, on the outside of the current plate 3B, the communication portion 30c is formed to connect the space on the first surface 33a side and the space on the second surface 33b side in the internal space 30b.

[0043] Then, the first air A1 flowed into the duct 5 from the chamber device 4 is supplied from the duct 5 to the internal space 30b of the housing 3A through the cylinder 321c and the air supply port 321b. The first air A1 supplied from the air supply port 321b to the internal space 30b from top to bottom flows along the first surface 33a of the straightening plate 3B, passes through the communication portion 30c from top to bottom, advances between the second surface 33b of the straightening plate 3B and the flange portion 312d toward the air outlet 30a, and is blown out downward from the air outlet 30a.

[0044] A flange 312d is formed on the periphery of the air outlet 30a. By providing the flange 312d on the periphery of the air outlet 30a, the air blowing device 3 can make the first air A1 blown out from the air outlet 30a a directional airflow, compared to a case where the flange 312d is not provided. That is, the flange 312d has a function of increasing the directivity of the first air A1 blown out from the air outlet 30a, and the air blowing device 3 can concentrate the first air A1 blown out from the air outlet 30a in a narrow range. In other words, the first air A1 reaches only the targeted area, and the diffusion to the surroundings is reduced.

[0045] The above-mentioned blower 3 includes a frame 31 having through holes 311b and 312a formed by hollowing out a galvanized steel plate. That is, the frame 31 is made of galvanized steel plate to ensure strength, while being lightweight by hollowing out. The blocking body 32 is made of hard polystyrene foam to ensure both weight reduction and strength. In the housing 3A, the frame 31 covers the outer surface of the blocking body 32, and both weight reduction and strength of the housing 3A are achieved. Therefore, the blower 3 using the housing 3A can achieve both weight reduction and strength.

[0046] As a result, the burden of constructing and mounting the air blowing device 3 is reduced, and additional devices such as the above-mentioned chamber device 4 can be easily added.

[0047] In addition, the blower 3 embedded in the ceiling 91 is supported by, for example, a frame of the ceiling 91. Therefore, even if the duct 5 is connected to the obstruction body 32 instead of the frame 31 as shown in FIG. 3, an excessive load is not applied to the obstruction body 32.

[0048] Furthermore, if sufficient strength can be ensured with only the framework frame 312, the frame 31 does not need to include the tabletop frame 311.

[0049] (3) First Modification A blower 3-1 of a first modified example is shown in Fig. 6. The blower 3-1 includes a drive mechanism 34. The drive mechanism 34 includes an electric actuator 34a and a support guide 34b.

[0050] The electric actuator 34a is attached to the front side of the upper surface of the housing 3A. The electric actuator 34a includes an electric motor, a ball screw extending in the left-right direction along the X-axis, a screw nut fitted into the ball screw, and a rod attached to the screw nut. The rotational force of the electric motor is transmitted to the ball screw, and the ball screw rotates around the axis of the ball screw as the rotation axis. When the ball screw rotates in one direction, the screw nut moves leftward along the X-axis, and when the ball screw rotates in the other direction, the screw nut moves rightward along the X-axis. A rod is attached to the screw nut, and the rod also moves along the X-axis in response to the rotation of the ball screw, similar to the screw nut.

[0051] An opening (not shown) is formed in the upper surface of the housing 3A, facing the electric actuator 34a and extending along the X-axis. The upper end of at least one rod-shaped first support is connected to the rod of the electric actuator 34a. The lower end of the first support is inserted into the internal space 30b through the opening of the housing 3A and attached to the straightening plate 3B.

[0052] The support guide 34b is attached to the rear side of the upper surface of the housing 3A. The support guide 34b includes a linear rail and a slider attached to the rail. The rail is attached so as to extend in the left-right direction along the X-axis. The slider moves linearly in the left-right direction along the rail. That is, the extension direction of the rail is the same as the displacement direction of the electric actuator 34a. An opening (not shown) is formed on the upper surface of the housing 3A, facing the support guide 34b and extending along the X-axis. The upper end of at least one rod-shaped second support is connected to the slider of the support guide 34b. The lower end of the second support is inserted into the internal space 30b through the opening of the housing 3A and attached to the straightening plate 3B.

[0053] The controller K1 (see FIG. 1) controls the position of the electric actuator 34a. That is, the position of the rod of the electric actuator 34a is controlled by the controller K1.

[0054] The drive mechanism 34 slides the straightening plate 3B in the left-right direction along the X-axis so as to change a communicating portion, which is a gap formed between the left surface of the obstructing body 32 and the left end of the straightening plate 3B in the internal space 30b, and a communicating portion, which is a gap formed between the right surface of the obstructing body 32 and the right end of the straightening plate 3B. The blower 3-1 can control the directionality of the first air A1 blown out from the blower port 30a by changing the sliding position of the straightening plate 3B.

[0055] In blower device 3-1, in order to attach drive mechanism 34 to the upper surface of housing 3A, frame 31 includes top plate frame 311A ​​instead of top plate frame 311 of blower device 3 described above. Top plate frame 311A ​​is required to have a strength sufficient to withstand the weight of drive mechanism 34, while also being lightweight.

[0056] Therefore, the top plate frame 311A ​​has four through holes 311h and four through holes 311i formed around a circular insertion hole 311a formed in the center of a square metal sheet, as shown in Fig. 6. The above-mentioned through holes 311h and through holes 311i are preferably lightening holes formed by metal sheet processing or press processing.

[0057] The four through holes 311h are arranged in two rows and two columns with the insertion hole 311a between them. That is, of the four through holes 311h, two through holes 311h face the other two through holes 311h in the left-right direction along the X-axis with the insertion hole 311a between them. The through holes 311h are substantially rectangular, and one side facing the insertion hole 311a is arc-shaped along the periphery of the insertion hole 311a.

[0058] Of the four through holes 311i, two through holes 311i are aligned along the front side of the top frame 311A, and the other two through holes 311i are aligned along the rear side of the top frame 311A. The through holes 311i are rectangular in shape and are elongated in the left-right direction along the X-axis.

[0059] The top frame 311A ​​having the insertion holes 311a and the through holes 311h and 311i is integrally provided with a square rectangular frame 311c having four sides and beams 311j formed inside the rectangular frame 311c. The beams 311j are formed in a lattice shape connecting the sides of the rectangular frame 311c to each other.

[0060] Specifically, the beam portion 311j is integrally provided with an annular plate-shaped ring portion 311e and a connecting portion 311k. The ring portion 311e is located at the center of the rectangular frame 311c and surrounds the insertion hole 311a. The connecting portion 311k connects the outer periphery of the ring portion 311e to the centers of the left and right sides of the rectangular frame 311c at 180 degree intervals. Furthermore, the connecting portion 311k directly connects the left and right sides of the rectangular frame 311c. Furthermore, the connecting portion 311k also extends in the front-rear direction along the Y-axis.

[0061] The electric actuator 34a and the support guide 34b are attached to the connecting portion 311k. That is, the connecting portion 311k has an insertion hole (not shown) extending along the X-axis facing the electric actuator 34a as a hole through which a first support of the electric actuator 34a is inserted. Also, the connecting portion 311k has an insertion hole (not shown) extending along the X-axis facing the support guide 34b as a hole through which a second support of the support guide 34b is inserted.

[0062] As described above, the controller K1 of the blower 3-1 controls the position of the rectifying vane 3B (the position of the electric actuator 34a). At this time, it is preferable that the controller K1 receives an external signal and controls the position of the rectifying vane 3B based on this external signal. That is, the controller K1 can adjust the slide position of the rectifying vane 3B to the center in the left-right direction of the internal space 30b, the right side in the left-right direction of the internal space 30b, or the left side in the left-right direction of the internal space 30b in response to the external signal. Note that the slide position of the rectifying vane 3B may be displaceable in four or more steps or continuously in an infinitely stepless manner, instead of the three steps of the center, right side, and left side of the internal space 30b.

[0063] The external signal is, for example, a signal output by an operating device installed on a wall surface of the air-conditioned space 9. The operating device has at least one of a push button, a slide knob, a touch panel, etc., operated by the caretaker as an operating unit, and the operating unit is operated corresponding to the slide position of the air straightening plate 3B. The operating device outputs an external signal according to the operation of the operating unit to the controller K1. In this case, the caretaker operates the operating unit according to the position of the person present in the air-conditioned space 9. In other words, the air blower 3-1 can generate a comfortable air-conditioned environment for each person in the air-conditioned space 9 by manually operating the operating device.

[0064] Furthermore, the external signal may be, for example, a signal output by a human body detection sensor installed in the air-conditioned space 9. The human body detection sensor includes an infrared sensor, a camera image sensor, a thermal image sensor, or the like, detects the position of a person in the air-conditioned space 9, and outputs the detection result to the controller K1 as an external signal. In this case, the controller K1 automatically controls the slide position of the air straightening plate 3B according to the position of the person in the air-conditioned space 9. That is, the air blower 3-1 can generate a comfortable air-conditioned environment for each person in the air-conditioned space 9 by automatic control using the human body detection sensor.

[0065] (4) Second Modification In the blower device 3-1 of the first modified example described above, a top panel frame 311B shown in FIG. 7 may be provided instead of the top panel frame 311A.

[0066] The top plate frame 311B has two through holes 311m of the same shape and four through holes 311n of the same shape around a circular insertion hole 311a formed in the center of a square metal sheet. Note that the above-mentioned through holes 311m and 311n are preferably lightening holes formed by sheet metal processing or press processing.

[0067] The two through holes 311m face each other in the left-right direction along the X axis with the insertion hole 311a therebetween. The through hole 311m has a rectangular shape that is long in the front-rear direction along the Y axis.

[0068] Of the four through holes 311n, two through holes 311n are aligned along the front side of the top frame 311B, and the other two through holes 311n are aligned along the rear side of the top frame 311B. The through holes 311n are rectangular in shape and are elongated in the left-right direction along the X-axis.

[0069] The top frame 311B in which the insertion holes 311a and the through holes 311m and 311n are formed is integrally provided with a rectangular frame 311c having a square shape with four sides and a beam portion 311o formed inside the rectangular frame 311c. The beam portion 311o is formed in a lattice shape connecting each side of the rectangular frame 311c to each other.

[0070] The electric actuator 34a is attached along the left-right direction between the front through-hole 311n and the insertion hole 311a on the upper surface of the tabletop frame 311B. The tabletop frame 311B has an insertion hole (not shown) that faces the electric actuator 34a and extends along the X-axis as a hole through which the first support of the electric actuator 34a is inserted.

[0071] The support guide 34b is attached along the left-right direction between the rear through-hole 311n and the insertion hole 311a on the upper surface of the top frame 311B. The top frame 311B has an insertion hole (not shown) that faces the support guide 34b and extends along the X-axis as a hole through which the second support body of the support guide 34b is inserted.

[0072] (5) Third Modification In the blower device 3-1 of the first modified example described above, a top panel frame 311C shown in FIG. 8 may be provided instead of the top panel frame 311A.

[0073] The top plate frame 311C includes a through hole 311p formed in the center of a square metal plate, and two through holes 311r. Note that the above-mentioned through holes 311p and 311r are preferably lightening holes formed by metal plate processing or press processing.

[0074] The through hole 311p has a rectangular shape that is long in the left-right direction along the X-axis, and is formed in the center of the top frame 311C in the front-rear direction.

[0075] The two through holes 311r face each other in the front-rear direction along the Y axis, with the through hole 311p in between. The through hole 311r has a rectangular shape that is long in the left-right direction along the X axis.

[0076] The top frame 311C in which the through holes 311p and 311r are formed is integrally provided with a square rectangular frame 311c having four sides and a beam portion 311s formed inside the rectangular frame 311c. The beam portion 311s is formed in a beam shape that connects the left and right sides of the rectangular frame 311c to each other.

[0077] The electric actuator 34a is attached along the left-right direction on the upper surface of the tabletop frame 311C between the front through-hole 311r and the front edge of the through-hole 311p. In the tabletop frame 311C, an insertion hole (not shown) is formed facing the electric actuator 34a and extending along the X-axis as a hole through which the first support of the electric actuator 34a is inserted.

[0078] The support guide 34b is attached along the left-right direction on the upper surface of the top frame 311C between the rear through-hole 311r and the rear side of the through-hole 311p. In the top frame 311C, an insertion hole (not shown) is formed facing the support guide 34b and extending along the X-axis as a hole through which the second support body of the support guide 34b is inserted.

[0079] (6) Airflow control system FIG. 9 shows an airflow control system 8 using the above-mentioned air blowing system 1.

[0080] In addition to the air blowing system 1, the airflow control system 8 includes a plurality of floor ventilation devices 71, an air conditioning unit 72, an external air passage 2, and a return air passage 21.

[0081] Each of the multiple floor ventilators 71 is embedded in the floor 93 of the air-conditioned space 9 and draws in the air in the air-conditioned space 9 as the fourth air A4. The fourth air A4 drawn in by each of the multiple floor ventilators 71 is supplied to the air conditioning equipment 72 through the return air passage 21. By providing the multiple floor ventilators 71, the airflow control system 8 can draw in the fourth air A4 more strongly than when the multiple floor ventilators 71 are not provided. As a result, the airflow control system 8 can increase the amount of ventilation per unit time in the air-conditioned space 9 and quickly replace the air in the air-conditioned space 9.

[0082] The air conditioning equipment 72 adjusts at least one of the temperature, humidity, and cleanliness of the fourth air A4, and sends it to the external air passage 2 as the third air A3. The third air A3 is conditioned air generated by the air conditioning equipment 72. Note that the conditioned air may be air to which a fragrance has been added or to which the amount of viruses has been reduced.

[0083] The air supply system 1 draws in air within the air-conditioned space 9 as the second air A2. Furthermore, the air supply system 1 receives the third air A3 sent out from the air conditioning equipment 72 via the external air passage 2. Then, the air supply system 1 blows a mixture of the second air A2 and the third air A3 into the air-conditioned space 9 as the first air A1.

[0084] In particular, the air blowing system 1 including the air blowing device 3-1 of any one of the first to third modified examples described above can blow out the first air A1, which has been adjusted in at least one of temperature, humidity, cleanliness, fragrance, and virus quantity, by controlling the directionality of the first air A1 as a directional airflow and concentrating it into a small area where one (or a small number of) people are present. That is, when performing zone control of air conditioning in the air-conditioned space 9, it becomes possible to narrow each zone and adjust the air quality for each narrow zone. It also becomes possible to change the position of the zone in the air-conditioned space 9. As a result, the airflow control system 8 can provide a comfortable air-conditioned environment for each person H1, H2 in the air-conditioned space 9.

[0085] Here, in the above-mentioned first to third modified examples, the direction of the first air A1 sent by the air blowing system 1 to the person H2 on the right side in FIG. 9 corresponds to a first state in which the straightening vane 3B is located at approximately the center in the left-right direction. Also, the direction of the first air A1 sent by the air blowing system 1 to the person H1 on the left side in FIG. 9 corresponds to a second state in which the straightening vane 3B is located on either one side in the left-right direction, not at approximately the center in the left-right direction. The switching control of the straightening vane 3B between the first state and the second state may be either manual control by an operating device installed on the wall surface of the air-conditioned space 9, or automatic control using a human body detection sensor (such as an infrared sensor, a camera image sensor, or a thermal image sensor) installed in the air-conditioned space 9. The human body detection sensor detects the positions of the people H1 and H2 relative to the air blowing system 1 (such as directly below, to the right, or to the left of the air blowing system 1).

[0086] Further, for the automatic control of the straightening vane 3B, an authentication system (not shown) that performs an authentication process when a person enters the air-conditioned space 9 may be used. The authentication system determines whether or not a person is permitted to enter the air-conditioned space 9 by using, for example, a card reader or a biometric authentication device, and manages entry and exit from the air-conditioned space 9. The air supply system 1 automatically controls the straightening vane 3B by using the authentication result of the authentication system. For example, the persons H1 and H2 who are permitted to enter the air-conditioned space 9 by the authentication system, the positions of the seats of the persons H1 and H2, and the air supply systems 1 near the seats are paired and associated with each other. Then, the air supply system 1 controls the position of the straightening vane 3B of each air supply system 1 so that the first air A1 is directed toward each seat of the persons H1 and H2.

[0087] At this time, it is preferable that the air supply system 1 holds data on the preferred air quality of each of the people H1 and H2 in advance, and reflects the preferred air quality of each of the people H1 and H2 in the first air A1 blown out by each air supply system 1. That is, the air supply system 1 individually controls the quality of the first air A1 blown out by each air supply system 1 so that the air quality is the preferred air quality of each of the people H1 and H2. For example, the person H1 prefers warm air rather than cold air because he or she has poor circulation, and also wants to relax with a favorite fragrance. Therefore, the air supply system 1 near the person H1 blows warm air containing the person H1's favorite fragrance as the first air A1. Furthermore, the person H2 does not have any preference regarding air quality if the temperature in the air-conditioned space 9 is, for example, 25 degrees or lower, such as in winter. However, person H2 is sensitive to heat, and therefore desires cool, dry air at a temperature of 24 degrees or less when the temperature in the air-conditioned space 9 exceeds 25 degrees, for example, as in summer. Therefore, when the temperature in the air-conditioned space 9 exceeds 25 degrees, the air supply system 1 near person H2 blows cool, dry air at a temperature of 24 degrees or less, which is preferred by person H2, as the first air A1. Such control of air quality is realized by the computer of the air supply system 1 executing a program created in advance.

[0088] Furthermore, if there is only one air supply system 1 in the air-conditioned space 9, the single air supply system 1 controls the first air A1 for the two people H1 and H2 as follows. When the air supply system 1 blows the first air A1 to the two people H1 and H2, the air supply system 1 performs direction switching control such that the air supply direction of the first air A1 is alternately directed toward the person H1 for a predetermined time, then toward the person H2 for a predetermined time, and then toward the person H1 for a predetermined time again. At this time, as described above, the preferred air quality of each of the people H1 and H2 may be alternately reflected in the first air A1 as individual control that reflects the personal preferences of each of the people H1 and H2 in the first air A1.

[0089] Furthermore, one air blowing system 1 may fix the blowing direction of the first air A1 for the two people H1 and H2, without performing direction switching control to switch the blowing direction of the first air A1. In this case, the air blowing system 1 may reflect only the air quality commonly preferred by the two people H1 and H2 in the first air A1. Alternatively, if there is no common air quality preference for the two people H1 and H2, a predetermined standard air quality may be reflected in the first air A1.

[0090] (7) Other modifications The frame 31 may be formed of metals other than galvanized steel, such as aluminum, iron, or stainless steel.

[0091] The blocking body 32 may be formed of a material having a lower density than the frame 31, such as a resin other than hard polystyrene foam or wood.

[0092] Although a flange 312d is formed as a narrowing portion on the periphery of the air outlet 30a, the narrowing portion is not limited to the flange 312d. The narrowing portion may have a configuration that narrows the portion of the internal space 30b on the air outlet 30a side so as to narrow the internal space 30b toward the periphery of the air outlet 30a. For example, the narrowing portion may be shaped to gradually narrow the internal space 30b as it proceeds downward toward the periphery of the air outlet 30a.

[0093] Although the current plate 3B is a single plate member, a plurality of plate members may be used as the current plate instead of the current plate 3B.

[0094] In the blower device 3-1 of the first to third modified examples described above, the sliding direction of the rectifying vane 3B is not limited to the left-right direction along the X-axis. That is, the sliding direction of the rectifying vane 3B may be a direction along an imaginary line segment on the XY plane, for example, a front-rear direction along the Y-axis. In addition, the sliding direction of the rectifying vane 3B is not limited to a direction perpendicular to the Z-axis, and may be any direction intersecting the Z-axis.

[0095] Furthermore, the structure to which the air blowing system 1 is attached is not limited to the ceiling 91, but may be another structure such as a stand provided above the air-conditioned space.

[0096] Moreover, the drive mechanism 34 may use other actuators, such as a pneumatic actuator or a hydraulic actuator, instead of the electric actuator 34a.

[0097] (8) Summary The air blower (3) of the first aspect according to the embodiment described above includes a housing (3A) and a straightening vane (3B). The housing (3A) is formed in a box shape having an internal space (30b) and includes an air inlet (321b) for feeding air into the internal space (30b) and an air outlet (30a) for expelling air to the outside of the internal space (30b). The straightening vane (3B) is disposed between the air inlet (321b) and the air outlet (30a). The housing (3A) has a frame (31) formed of metal and having at least one through hole (311b, 311h, 311i, 311m, 311n, 311p, 311r, 312a), and a blocking body (32) formed of resin and blocking the at least one through hole (311b, 311h, 311i, 311m, 311n, 311p, 311r, 312a) of the frame (31).

[0098] The above-described air blower (3) can achieve both weight reduction and sufficient strength.

[0099] In the first aspect, the air blower (3) in the second aspect according to the above-described embodiment preferably has a plurality of through holes (311b, 311h, 311i, 311m, 311n, 311p, 311r, 312a).

[0100] The above-described air blower (3) can be made even lighter.

[0101] In the second aspect of the blower device (3) of the third aspect according to the above-described embodiment, it is preferable that the multiple through holes (311b, 311h, 311i, 311m, 311n, 311p, 311r, 312a) are aligned along at least one direction.

[0102] In the above-described air blower (3), the beams formed by the plurality of through holes (311b, 311h, 311i, 311m, 311n, 311p, 311r) form a lattice shape, which makes it easier to ensure the strength of the frame (31).

[0103] In the fourth aspect of the blower device (3) according to the above-mentioned embodiment, in any one of the first to third aspects, it is preferable that the frame (31) comprises a metal plate having at least one through hole (311b, 311h, 311i, 311m, 311n, 311p, 311r, 312a) formed therein.

[0104] The above-described air blower (3) makes it easier to ensure the strength of the frame (31).

[0105] In the blower device (3) of the fifth aspect according to the above-mentioned embodiment, in the fourth aspect, it is preferable that the metal plate is a galvanized steel plate.

[0106] The above-described air blower (3) makes it easier to ensure the strength of the frame (31).

[0107] In the sixth aspect of the blower device (3) according to the above-mentioned embodiment, in any one of the first to fifth aspects, the blocking body (32) is preferably formed using hard polystyrene foam as the resin.

[0108] The above-described air blower (3) can achieve both a reduction in weight of the blocking body (32) and an ensured strength.

[0109] In the seventh aspect of the air blower (3) according to the above-described embodiment, in any one of the first to sixth aspects, it is preferable that the air blower (3) further includes a drive mechanism (34) for moving the current vane (3B).

[0110] The above-mentioned blower (3) can control the directionality of the blown air.

[0111] The air blowing system (1) of the eighth aspect according to the above-mentioned embodiment includes any one of the first to seventh air blowing devices (3) that blows out a first air (A1) as air from an air outlet (30a) to an air-conditioned space (9), and a chamber device (4). The chamber device (4) draws in air from the air-conditioned space (9) as the second air (A2), draws in air from the outside as the third air (A3), and generates air that is a mixture of the second air (A2) and the third air (A3) as the first air (A1).

[0112] The above-described air blowing system (1) can achieve both weight reduction and strength of the air blower (3).

[0113] In the air blowing system (1) of the ninth aspect according to the above-mentioned embodiment, in the eighth aspect, it is preferable that the first air (A1) contains conditioned air.

[0114] The above-mentioned ventilation system (1) is capable of adjusting the air quality. [Explanation of symbols]

[0115] 1. Air Blower System 3. Blower 3A Case 3B Rectifier plate 30a Air outlet 30b Internal space 31 Frame 311b, 311h, 311i, 311m, 311n, 311p, 311r, 312a through hole 32 Obstruction body 321b Air supply port 34 Drive mechanism 4. Chamber Apparatus 9 Air-conditioned space A1 No. 1 Air A2 2nd Air A3 3rd Air

Claims

1. a housing formed in a box shape having an internal space, the housing having an air intake port for feeding air into the internal space and an air outlet for discharging the air into an air-conditioned space outside the internal space; A rectifying plate disposed between the air inlet and the air outlet; a drive mechanism that moves the air straightening plate in a direction intersecting an axial direction of the air outlet; Equipped with The housing includes: a frame formed of metal and having at least one through hole; a blocking body formed of resin and blocking the at least one through hole of the frame, The drive mechanism includes an electric actuator that moves the straightening plate in the intersecting direction. Blower device.

2. The through holes are provided in a plurality The blower device of claim 1.

3. The plurality of through holes are aligned along at least one direction. The blower device according to claim 2.

4. The frame includes a metal plate having the at least one through hole formed therein. The blower device according to any one of claims 1 to 3.

5. The metal plate is a galvanized steel plate. The blower device according to claim 4.

6. The blocking body is formed by using hard polystyrene foam as the resin.

6. The blower device according to claim 1.

7. a blower device according to any one of claims 1 to 6, which blows out a first air as the air from the blower port into an air-conditioned space; a chamber device that draws in air in the air-conditioned space as second air, draws in air from the outside as third air, and generates air obtained by mixing the second air and the third air as the first air. Ventilation system.

8. The first air includes conditioned air. The ventilation system of claim 7.

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