Fluid control device, fluid control method, and program

Abstract

A fluid control device according to the present invention is a fluid control device for controlling the flow of a first fluid on the basis of content, the fluid control device being provided with a variable air volume device. The variable air volume device has: a shutter which is provided on a flow path in which the first fluid flows, and which adjusts the flow of the first fluid by opening / closing with respect to the flow path of the first fluid; and a control unit which controls the degree of opening / closing of the shutter on the basis of the content.

Description

Fluid control device, fluid control method, and program

[0001] The present technology relates to a fluid control device for controlling a flow of a fluid, a fluid control method, and a program.

[0002] There are examples in which airflow (fluid) is used to enhance the sense of realism of audiovisual content. Airflow is generally generated by an airflow generating device using a rotor or a compressor, and some airflow generating devices are capable of changing the degree of diffusion or convergence of the airflow. By changing the degree of diffusion or convergence of the airflow, the reach of the airflow can be controlled, and high controllability can be said to provide excellent spatial resolution of the airflow. For example, Patent Document 1 discloses an airflow generating device equipped with rotors and capable of changing the degree of diffusion or convergence of the airflow.

[0003] Patent Document 1 discloses a blower that includes an axial fan and straightening blades, and that can change the degree of diffusion or convergence of the airflow by changing the position of the straightening blades.

[0004] JP 2016-070110 A

[0005] However, in the configuration described in Patent Document 1, when tactile presentation using a fluid is performed for the purpose of enhancing the realism of audiovisual content, the only parameter for controlling the wind speed is the rotational speed of the fan, and it is difficult to change the wind speed quickly because it is affected by inertia due to changes in the rotational speed.

[0006] In view of the above circumstances, an object of the present technology is to provide a fluid control device, a fluid control method, and a program that can achieve high temporal resolution of fluid (e.g., regarding the temporal responsiveness of all parameters such as air volume, wind speed, diffusion range, direction, etc.).

[0007] To achieve the above object, a fluid control device according to one aspect of the present technology is a fluid control device that controls a flow of a first fluid based on content, and includes an air volume variable device. The air volume variable device is provided in a flow path through which the first fluid flows and includes a shutter that adjusts the flow of the first fluid by opening and closing the flow path of the first fluid, and a control unit that controls the opening and closing degree of the shutter based on the content.

[0008] The shutter has a closed state in which it covers a surface perpendicular to the flow direction of the first fluid when viewed from the flow direction of the first fluid, and an open state in which it is inclined relative to the flow path, and the control unit may control the closed state and the open state of the shutter based on the content.

[0009] The device may further include a blower having a housing portion having an intake surface that sucks in the first fluid, a discharge surface that discharges the sucked in first fluid, and a ventilation path that connects the intake surface and the discharge surface, and a fan that is provided in the ventilation path and generates a fluid flow from the intake surface to the discharge surface.

[0010] The shutter may be provided on the intake surface side or the discharge surface side of the housing part.

[0011] The nozzle may further include a rectifying mechanism provided in the housing for controlling the direction and diffusion range of the airflow discharged from the ejection surface.

[0012] The control unit may control the rotation speed of the fan based on the content.

[0013] The control unit may vary the opening and closing speed of the shutter while the shutter is being driven.

[0014] When changing the shutter from an open state to a closed state, the control unit may drive the shutter from the open state to the closed state at a first speed for a predetermined time, and after the predetermined time, drive the shutter to the closed state at a second speed slower than the first speed.

[0015] The air flow rate varying device may further include a hot / cold source provided on the intake surface side, and the second fluid generated by heating or cooling the hot / cold source to a predetermined temperature may be discharged to the discharge surface side.

[0016] The control unit may control the degree to which the shutter is opened or closed based on scene conditions.

[0017] The air volume varying device may be a fan, the shutter may be a rotor of the fan, and the control unit may adjust the fluid flow rate by changing a pitch angle of the rotor.

[0018] The first fluid may be air.

[0019] The air volume varying device may further include a shutter drive source and a shutter angle changing mechanism that transmits the force of the shutter drive source and changes the degree to which the shutter opens and closes with respect to the flow path.

[0020] The air volume variable device further includes a belt section that is movably arranged along the outer peripheral surface of the housing section, a belt drive section that controls the movement of the belt section, and a shutter rotation section that is connected to the belt section along the outer peripheral surface of the housing section and rotates around a direction perpendicular to the outer peripheral surface of the housing section as the belt section moves, and the shutter rotation section may be connected to the shutter and rotate to open and close the shutter.

[0021] The air volume adjusting device may further include a receiving unit that receives a control signal based on the content, and the control unit may control the degree of opening or closing of the shutter based on the control signal.

[0022] The control signal may be a signal conforming to the DMX512 standard.

[0023] In order to achieve the above object, a fluid control method according to one embodiment of the present technology is a fluid control method in which the flow of a first fluid is controlled by a fluid control device based on content, and the degree of opening and closing of a shutter, which is provided on a flow path through which the first fluid flows and opens and closes the flow path of the first fluid to adjust the flow of the first fluid, is controlled based on the content.

[0024] In order to achieve the above object, a program according to one form of the present technology is a program for controlling the flow of a first fluid based on content, and causes a computer to execute a step of controlling, based on the content, the degree of opening and closing of a shutter that is provided on a flow path through which the first fluid flows and that adjusts the flow of the first fluid by opening and closing the flow path of the first fluid.

[0025] [Correction based on Rule 91 08.08.2024] A perspective view of a fluid control device according to a first embodiment of the present technology. A cross-sectional view of the fluid control device, where (A) shows a state in which the shutter is closed, and (B) shows a state in which the shutter is open. A diagram showing the rotation axis of the shutter, where (A) is a front view of the shutter, and (B) is a diagram in which the rotation axis of the shutter passes through the center of the outer periphery of the shutter's shielding portion in the left diagram, and passes through the edge of the outer periphery of the shutter's shielding portion in the right diagram. A block diagram of a control unit. A block diagram related to data reception by the control unit. A diagram showing a modified example of the shutter, where (A) shows a state in which the shielding portion is rectangular, and (B) shows a state in which the shielding portions have overlapping steps. 10A and 10B are diagrams showing modified examples of the shutter, in which (A) the shielding portion opens and closes by rotating around a single point, (B) the shielding portion slides relative to the ejection surface, and (C) the shielding portion opens and closes by squeezing into a circular shape. 10B are diagrams of a fluid control device according to a second embodiment of the present technology, in which (A) is a diagram seen from the shutter side, and (B) is a diagram seen from the side. 10C are diagrams showing modified examples of the belt portion, in which (A) the shielding portion is rigid, and (B) the shielding portion is flexible, and (C) is a diagram showing the shutter in a closed state on the left and the shutter in an open state on the right. 10C are diagrams showing modified examples of the belt portion, in which (A) the first connecting portions are connected to different belt portions, and in which (B) the first connecting portions are connectable to different belt portions, and (C) is a cross-sectional view of the first connecting portion. 10A and 10B are diagrams of a fluid control device according to a third embodiment of the present technology, in which (A) is a perspective view of a fluid control device having a rectifying mechanism, (B) is a diagram of a fluid control device without a rectifying mechanism with the shutter in an open state, (C) is a diagram of a fluid control device without a rectifying mechanism with the shutter inclined at a predetermined angle, (D) is a diagram of a fluid control device having a rectifying mechanism with the shutter in an open state, and (E) is a diagram of a fluid control device having a rectifying mechanism with the shutter inclined at a predetermined angle. 10B are diagrams of an air volume variable device according to a fourth embodiment of the present technology, in which (A) is a diagram of a closed state due to a spring provided on the shutter, and (B) is a diagram of a shutter with a spring provided on the shutter in an open state due to air flow.10A and 10B are diagrams illustrating control of the rotation speed of a fan according to a fifth embodiment of the present technology, where (A) is a diagram illustrating a case where the rotation speed of a fan propeller is constant, and (B) is a diagram illustrating a case where the rotation speed of the fan propeller changes with the opening and closing of a shutter. 10B are diagrams illustrating opening and closing angles of a shutter according to a sixth embodiment of the present technology, where (A) is a diagram illustrating the opening and closing angles of the shutter, (B) is a diagram illustrating the opening and closing angles of the shutter according to a first embodiment, and (C) is a first diagram illustrating the opening and closing angles of the shutter according to this embodiment. 10C are diagrams illustrating opening and closing angles of a shutter according to the sixth embodiment, where (A) is a second diagram illustrating the opening and closing angles of the shutter, (B) is a third diagram illustrating the opening and closing angles of the shutter, and (C) is a fourth diagram illustrating the opening and closing angles of the shutter. 10D are diagrams illustrating a state where the shutter is closed, where (A) is a diagram illustrating a state where the rotation axis is disposed at the center of the shielding part, and (B) is a diagram illustrating a state where the rotation axis is disposed offset from the center of the shielding part. 10A and 10B are diagrams of a blower device according to a seventh embodiment of the present technology, where (A) is a front view of the blower device, and (B) is a perspective view of the blower device. FIG. 10B is a plan view of a fan. FIG. 10C is a diagram of a blower device, where (A) is a plan view of the blower device, and (B) is a diagram of the fan moved in one direction, and (C) is a diagram of the fan moved in the other direction. FIG. 10B is a cross-sectional view of the blower device, where (A) is a cross-sectional view of the blower device, and (B) is a cross-sectional view of the fan moved in one direction, and (C) is a cross-sectional view of the fan moved in the other direction. FIG. 10C is a front view of a blower device, where (A) is a front view of the blower device, and (B) is a front view of the fan moved in one direction, and (C) is a front view of the fan moved in the other direction. FIG. 10D is a diagram of a fluid control device according to an eighth embodiment of the present technology, as seen from the side. FIG. 10E is a cross-sectional view of the fluid control device according to the eighth embodiment of the present technology. 10A and 10B are diagrams of a fluid control device according to an eighth embodiment of the present technology, where (A) is a diagram seen from above and (B) is a diagram seen from the shutter side. 10B are diagrams of a fluid control device according to a ninth embodiment of the present technology, where (A) is a diagram seen from the shutter side. 10C are diagrams of a fluid control device according to the ninth embodiment of the present technology, where (A) is a diagram seen from above and (B) is a diagram seen from the shutter side. 10C are diagrams of a fluid control device according to the ninth embodiment of the present technology, where (A) is a diagram seen from above.

[0026] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0027] First Embodiment A fluid control device 1 according to a first embodiment of the present technology will be described. FIG. 1 is a perspective view of the fluid control device 1 according to the first embodiment, and FIG. 2 is a cross-sectional view of the fluid control device 1, where (A) shows a state in which a shutter 20 is closed, and (B) shows a state in which the shutter 20 is open. FIG. 3 is a diagram showing a rotation axis of the shutter 20, where (A) is a front view of the shutter 20, and (B) is a diagram in which, in the left figure, the rotation axis 22 of the shutter 20 passes through the center of the outer periphery of the shielding portion 21 of the shutter 20, and in the right figure, the rotation axis 22' of the shutter 20 passes through the end of the outer periphery of the shielding portion 21 of the shutter 20. FIG. 4 is a block diagram of a control unit 30. As shown in these figures, the fluid control device 1 includes an air volume variable device 10 and an air blower 100. In this embodiment, the fluid control device 1 is installed on a floor surface, but the present invention is not limited thereto and may be installed on a wall surface or hung from a ceiling. In each drawing, the X-axis, Y-axis, and Z-axis indicate three axial directions that are orthogonal to each other.

[0028] In this embodiment, the fluid control device 1 is used when a tactile sensation using a fluid is presented for the purpose of enhancing the sense of realism of audiovisual content. For example, if the fluid control device 1 is installed in a movie theater, wind is presented to a user watching a movie in sync with an explosion scene, for example. The content referred to here may be, in addition to the above-mentioned movie, a game, a video such as a television, a movie, a comic, a magazine, a book such as a picture book (including paper media and e-books), music, or even wind itself (wind that feels like being in a summer resort or a desert), but is not limited thereto. Furthermore, in this embodiment, air (gas) is used as the fluid (first fluid), but the present invention is not limited thereto and may include mist.

[0029] 1 and 2, the blower device 100 has a housing 101 and a fan 110. The housing 101 has an intake surface 101B that draws in air W, an outlet surface 101A that discharges the drawn air W, and an air passage 101C that connects the intake surface 101B and the outlet surface 101A. The fan 110 is provided in the air passage 101C and generates an air flow that flows from the intake surface 101B to the outlet surface 101A.

[0030] In this embodiment, the blower device 100 has a cylindrical shape, but of course, this is not limited thereto and may have any shape, for example, a polygonal shape, as long as it can accommodate the fan 110. Furthermore, the length of the ventilation passage 101C, which is the flow path through which air flows, is not particularly limited. Separate filters or the like may be provided on the intake surface 101B and the discharge surface 101A to prevent dust from entering. Furthermore, in this embodiment, an axial flow fan is used as the fan 110, but of course, this is not limited thereto and a centrifugal fan or a sirocco fan may also be used.

[0031] As shown in FIG. 2 , the fan 110 has three rotor blades (propellers) 111. Each rotor blade 111 is connected to a fan rotation shaft (not shown) and rotates by the fan rotation shaft. The rotation of the rotor blades 111 generates the airflow described above. The fan rotation shaft is arranged parallel to the direction along (parallel to) the flow path. In this embodiment, the fan 110 has three rotor blades 111, but the number is not limited to three and may be five.

[0032] (Air volume variable device) As shown in Figures 1 and 2, the air volume variable device 10 is provided on a flow path through which air W flows, and has a shutter 20 that adjusts the flow of air W (including air flow rate (fluid flow rate), wind speed (flow velocity), wind direction, etc.) by opening and closing the flow path of the air W, a control unit 30 that controls the degree of opening and closing (opening and closing angle) of the shutter 20 based on content, a support mechanism 40 for attaching to the blower device 100, a shutter drive source 50, and a shutter angle change mechanism 60.

[0033] As shown in FIGS. 1 and 2 , the shutter 20 is disposed opposite the ejection surface 101 (fan 110). The shutter 20 also has multiple shielding portions 21, which are blades formed in a roughly fan shape. In this embodiment, the number of shielding portions 21 is six, but of course this is not limited to six and may be one or eight. The shutter 20 is roughly circular when viewed from the ejection surface 101A side. As shown in FIGS. 2A and 2B , the shutter 20 is configured to be movable between a closed state in which it covers a surface perpendicular to the air flow direction, and an open state inclined relative to the flow path. The shutter 20 also has a shutter rotation shaft 22 for each of the multiple shielding portions 21, and the shutter 20 is rotated around the shutter rotation shaft 22 by the control unit 30 (described later). Covering the perpendicular surfaces means covering 80%, 85%, 90%, 95%, or 100% of the surface. In particular, in this embodiment, the closed state is a state perpendicular to the flow path (the direction of flow from the intake surface 101B to the discharge surface 101A, the direction perpendicular to the discharge surface 101A), but as described above, it is not limited to being completely perpendicular.

[0034] 1, the support mechanism 40 is provided on the discharge surface 101A (housing 101) and is disposed so that the center of the shutter 20 overlaps the center of the discharge surface 101A. The support mechanism 40 uses a frame or the like and is fixed to the shutter 20 and the discharge surface 101A (housing 101) with screws or the like. In this embodiment, the air volume variable device 10 is provided opposite the discharge surface 101A, which prevents the size of the fluid control device 1 from becoming large.

[0035] Regarding the opening and closing of the shutter 20, the shutter rotation axis 22 may be provided at a position connecting the apex of the sector of the shielding portion 21 and the center of the outer periphery, as shown on the left side of Figure 3(B), or the shutter rotation axis 22' may be provided at a position connecting the apex of the sector of the shielding portion 21 and the end of the outer periphery (one side of the sector), as shown on the right side of Figure 3(B).

[0036] 3, the shutter 20 rotates around the shutter rotation axis 22, thereby opening and closing the shutter 20 (shielding portion 21) relative to the ejection surface 101A. This adjusts the air flow (for example, air flow rate, air speed, and wind direction) presented to the user.

[0037] The direction in which the shutter rotation shaft 22 rotates is not particularly limited, and it may rotate so as to tilt counterclockwise as shown in Fig. 3(B) (second row from the top in Fig. 3(B)), or it may rotate so as to tilt clockwise (third row from the top in Fig. 3(B)). When the shutter rotation shaft 22 is tilted in the forward direction (for example, the second row from the top in Fig. 3(B)) relative to the vortex (rotation) of the air W generated by the fan 110, the airflow can be diffused, and when the shutter rotation shaft 22 is tilted in the reverse direction (for example, the third row from the top in Fig. 3(B)) relative to the vortex (rotation) of the air W generated by the fan 110, the airflow can be converged.

[0038] The air volume variable device 10 further includes a shutter drive source 50 and a shutter angle change mechanism 60 that transmits the force (rotational power) of the shutter drive source 50 in a direction parallel to the air flow direction (a direction perpendicular to the discharge surface 101A or the intake surface 101B, and also the direction in which air is exhausted from the fan 110) and changes the opening / closing angle of the shutter 20 relative to the flow path. The shutter drive source 50 generates rotational power that changes the opening / closing angle (pitch angle (angle of rotation (tilt) about the Y-axis direction in FIG. 2 )) of the shielding portion 21. The shutter angle change mechanism 60 is connected to the shutter rotation shaft 22 and moves in a direction parallel to the direction of air flow W, thereby transmitting the force to the shutter rotation shaft 22 that is oriented perpendicular to that direction and rotating the shielding portion 21. In other words, the shutter angle change mechanism 60 is a mechanism that rotates the rotation shaft 22 that extends in a direction perpendicular to the discharge surface 101A, based on the force that moves in the direction perpendicular to that direction. A servo motor can be used as the shutter drive source 50. These mechanisms will be described in detail in the seventh embodiment. In the seventh embodiment, the shutter drive source 50 corresponds to a pitch drive source 114A, which will be described later, and the shutter angle change mechanism 60 corresponds to a pitch angle change mechanism 115A. In this embodiment, the force of the shutter drive source 50 is parallel to the direction of air flow (the direction perpendicular to the discharge surface 101A or the intake surface 101B, and the direction in which air is exhausted from the fan 110), but this is not limiting.

[0039] For example, if there is an explosion scene in three seconds in a movie, the control unit 30 controls the shutter 20 to open after three seconds. Of course, this is not limiting, and the control unit 30 controls the opening and closing angle of the shutter 20 based on the conditions of the scene. As shown in Fig. 4, the control unit 30 has an acquisition unit 31, a signal generation unit 32, and a memory 33. Fig. 5 is a block diagram related to data reception by the control unit 30.

[0040] The acquisition unit 31 acquires a wind indication packet (control signal) transmitted from an external device. In this embodiment, the wind indication packet is received as data conforming to the DMX (Digital Multiplex) 512 communication protocol, but the communication protocol is not limited to this. Data may be transmitted and received via a wired connection or wirelessly.

[0041] The signal generating unit 32 generates a drive signal for driving the shutter driving source 50 based on the contents of the wind presentation packet acquired by the acquiring unit 31 , and transmits the drive signal to the shutter driving source 50 .

[0042] Here, the wind presentation packet is composed of a header section at the beginning where control information is described, followed by a payload section which is the main body of data to be sent. The control information (contents written in the header section) includes the direction of the wind to be presented to the user (presentation direction), the distance up to which the wind is to be presented (presentation distance), the range up to which the wind is to be presented (presentation range (diffusion range)), the strength of the presented wind (wind speed, number of rotations of the fan 110) (presentation intensity), changes over time in the strength of the presented wind, the timing at which the wind is presented to the user (presentation timing), whether to stop presenting the wind, the wind cycle, etc.

[0043] The contents included in the header section do not need to be all of the above and may be selected as appropriate. Furthermore, the presentation direction may include a presentation pattern and a period. The presentation pattern is not limited to presenting wind from left to right, but includes various other wind presentation patterns such as up and down, circular, and figure-eight patterns, and is not limited to the above examples. Furthermore, the period of the fan 110 and the shutter 20 may be a value that results in uniform movement, uniform circular movement, or non-uniform movement (variable movement speed).

[0044] The presented distance may also include a presented pattern and a period. The presented pattern may include a width (length) of forward and backward movement. The period of the fan 110 and the shutter 20 may be a value that moves forward and backward at a constant or non-constant speed over the aforementioned forward and backward length (presented distance).

[0045] The presentation range may also include a presentation pattern and a period. The presentation pattern may include a size that varies from large to small. The period of the fan 110 and the shutter 20 may be a value that changes the size at a constant or non-uniform speed.

[0046] The presentation intensity may also include a presentation pattern and a period. The presentation pattern may include the magnitude of wind speed (wind strength), etc. The periods of the fan 110 and the shutter 20 may be values ​​that change the magnitude of the wind speed (wind strength) at a uniform or non-uniform speed.

[0047] Furthermore, the timing of outputting the presentation waveform after receiving the wind presentation packet does not have to be immediately after receiving it, but may be after waiting for the time indicated by the presentation timing.

[0048] The payload section may also contain signal waveforms for presenting wind to the user (for example, time series data or drive waveforms for one or more fans 110 and shutter 20). The DMX512 and the control unit 30 are connected to each other via wire or wirelessly so that they can communicate with each other. The waveforms presented in the payload section may also be a combination of data for the shutter 20, data for the motor of the fan 110, etc., and the amounts of data may be the same or different.

[0049] The memory 33 stores programs for the control unit 30 to execute the above-described processes, and specifications of the fan 110 and the shutter 20 (such as maximum rotation speed, wind speed, and wind direction that can be displayed).

[0050] Here, the DMX512 communication protocol is often used to control fans and lights used at events, etc. By using the DMX512 communication protocol, the shutter 20 can be controlled using the same communication protocol.

[0051] Furthermore, the destination address in the header section may be a destination address for an arbitrary group other than an individual fluid control device 1, or a destination address for all fluid control devices 1 (if there are multiple fluid control devices 1). This eliminates the need to generate wind indication packets individually. Furthermore, wind indication packets may be transmitted by broadcast, which allows for efficient transmission to each group or to all fluid control devices 1.

[0052] Furthermore, when transmitting a wind indication packet, abstract data such as wind speed and diffusion rate may be transmitted, and the receiving side (fluid control device 1 side) may convert this data into specific control data while checking it against its own specification information, or the transmitting side may transmit specific control data directly. For example, if the transmitting side transmits data indicating the wind speed as the maximum wind speed, the receiving side will check its own specification and convert it into data indicating 10 meters per minute if the maximum wind speed is 10 meters per minute.

[0053] The specification information may be transmitted from the transmitting side to the fluid control device 1 in advance or simultaneously with transmission, or may be pre-stored on the fluid control device 1. Alternatively, the transmitting side may read out specification information previously stored in the fluid control device 1 and transmit specific control data based on that information.

[0054] In addition to the above, when the shutter 20 is opened and closed to present wind to the user, it takes time from the time the shutter 20 is opened until the wind is presented to the user. In this case, the timing of opening and closing the shutter 20 may be controlled based on the distance between the fluid control device 1 and the user.

[0055] For example, suppose there is a scene in a movie where an explosion occurs in three seconds. In this case, the tactile stimuli presented to the user include vibrations, loud noises, etc. in addition to the wind blast. Even if the shutter 20 is opened three seconds after the explosion scene, the wind presented to the user will be presented a little later, and the timing at which the vibrations and loud noises are presented to the user will differ from the timing at which the wind is presented.

[0056] Therefore, when information is acquired indicating that wind should be presented to the user after three seconds, the timing for opening the shutter 20 is controlled to be advanced by a predetermined time based on the distance between the fluid control device 1 and the user (pre-stored in the memory unit 33) and the wind speed. This allows the timing to be synchronized with other tactile stimuli (vibration, sound). Of course, the timing is not limited to three seconds, but can be any number of seconds, and is not limited to explosion scenes. Furthermore, the timing for playing vibration, explosion (sound), etc., can be delayed based on information such as wind speed. While vibration and sound are given as examples here, the present invention is not limited to these, and any tactile stimuli, such as scent, pressure sensation, force sensation, electrical stimulation, hot and cold, etc., can be used.

[0057] [Shutter Operation Flow] Here, for example, a case will be described in which the content is a movie scene in which an explosion occurs in three seconds. First, the fan 110 is rotating at 1500 rpm, and the shutter 20 is closed ( FIG. 2A ). Here, the content design (content written out as data) of "in three seconds, the fan 110 will blow air at 1500 rpm for three seconds" is converted to DMX and transmitted from an external device. The transmitted data conforming to the DMX512 communication protocol (a wind indication packet indicating that in three seconds, the fan 110 will blow air at 1500 rpm for three seconds) is acquired by the acquisition unit 31 of the control unit 30. The signal generation unit 32 then converts the acquired data into parameters that can be used to drive the shutter drive source 31, generating a drive signal (to blow air from the fan 110 at 1500 rpm for three seconds). Then, three seconds after the data acquisition, the drive signal is transmitted to the shutter drive source 31. Power is transmitted to the shutter angle change mechanism 60 by the shutter drive source 50, and the shielding portion 21 is set to the open state (tilted) (FIG. 2(B)). Of course, a drive signal may be transmitted after three seconds, or a drive signal that will activate after three seconds may be transmitted. In this embodiment, the design is converted into DMX and converted into parameters on the control unit 30 side, but this is not limited to this. The design may be converted into parameters on the transmitting side, the parameters may be converted into DMX, and then transmitted to the fluid control device 1, and the received DMX may be converted into parameters.

[0058] That is, the fluid control device 1 does not change the wind presented to the user by changing the rotation speed of the fan 110, but instead presents wind to the user by opening and closing the shutter 20. This makes it possible to realize a fluid control device 1 with higher time resolution than the rotation speed of the fan 110 (that is, it can immediately provide a predetermined wind volume and wind speed to the user, stop presenting wind to the user at a predetermined timing, and quickly respond to the time responsiveness of all parameters such as the diffusion range and direction of the fluid (wind)).

[0059] In this embodiment, the shutter 20 is provided so as to face the ejection surface 101A side, but of course, this is not limitative, and the shutter 20 may be provided so as to face the intake surface 101B side.

[0060] <Modification 1-1> Next, a modification of the present technology will be described. In the present embodiment, the shielding portion 21 has a shape of multiple sectors, but of course this is not limited to this, and the shielding portion 21A may also have a rectangular shape. Figure 6 is a diagram showing a modification of the shutter 20, in which (A) shows the shielding portion 21A has a rectangular shape, and (B) shows a state in which the shielding portion 21B has overlapping step portions 211B.

[0061] As shown in Fig. 6A, rectangular shielding portions 21A are arranged in one direction. As shown in Fig. 6A, the shielding portions 21A have a rotation axis 22 on the long axis of the rectangular shape, and by rotating around the rotation axis 22, the shutter 20A can be opened and closed.

[0062] 6(B), one shielding portion 21B has a step portion 211B that overlaps with the other shielding portion 21B in the closed state (the state on the left in FIG. 6(B)). This makes it possible to prevent wind from coming out from the gap between the shielding portions 21B when the shutter 20 is in the closed state.

[0063] <Modification 1-2> Next, a modification of the present technology will be described. In the present embodiment, the shutter 20 is opened and closed by the shielding portion 21 being inclined with respect to the ejection surface 101A, but of course this is not limited to this. The shutter 20 may be opened and closed by the shielding portion 21C sliding in a direction horizontal to the ejection surface 101A. Figure 7 is a diagram showing a modification of the shutter, in which (A) is a diagram showing the shielding portion 21C opening and closing by rotating around one point, (B) is a diagram showing the shielding portion 21D sliding with respect to the ejection surface 101A, and (C) is a diagram showing the shielding portion 21E opening and closing by squeezing into a circular shape.

[0064] As shown in Fig. 7A, the rotation axis 22 is positioned so as to overlap the ejection surface 101A when viewed from a direction perpendicular to the ejection surface 101A, and the shutter 20C is opened and closed by moving about the rotation axis 22 in a plane parallel to the ejection surface 101A. As shown in Fig. 7B, the shielding portion 21D opens and closes the shutter 20D by moving (sliding) parallel to the ejection surface 101A in a plane parallel to the ejection surface 101A. Furthermore, as shown in Fig. 7C, the shielding portion 21E opens and closes the shutter 20E by deforming in a circular shape toward the center of the ejection surface 101A in a plane parallel to the ejection surface 101A.

[0065] Second Embodiment Next, a second embodiment of the present technology will be described. 8A and 8B are diagrams of a fluid control device 1F according to a second embodiment of the present technology, where (A) is a diagram seen from the shutter 20 side, and (B) is a diagram seen from the side. Hereinafter, configurations different from the first embodiment will be mainly described, and configurations similar to those in the first embodiment will be denoted by the same reference numerals, and descriptions thereof will be omitted or simplified.

[0066] The fluid control device 1F differs from the first embodiment in the configuration of the air volume variable device 10F. As a different configuration, the air volume variable device 10F has a belt unit 70 that is provided along the outer peripheral surface 101D of the housing unit 101 and is movable along the outer peripheral surface 101D of the housing unit 101, a belt drive unit 80 that controls the movement of the belt unit 70, a shutter rotation unit 90 that is connected to the belt unit 70 along the outer peripheral surface 101D of the housing unit 101 and rotates about a direction perpendicular to the outer peripheral surface 101D of the housing unit 101 as the belt unit 70 moves, and a roller unit 71 that is provided along the outer peripheral surface 101D and that smooths the movement of the belt unit 70.

[0067] The belt drive unit 80 enables movement along the outer peripheral surface 101D of the belt unit 70. Since the shutter 20F is opened and closed based on the distance traveled by the belt unit 70, the distance (range) traveled by the belt unit 70 is not particularly limited and can be set arbitrarily. The belt drive unit 80 is driven by, for example, a motor, and the motor is controlled by the control unit 30 described above.

[0068] The shutter rotating portion 90 has a first connecting portion 93 connected to the belt portion 70, a rotating portion 91 that rotates the shutter 20F (rotation axis 22 of the shielding portion 21F) around a direction perpendicular to the outer surface 101D, and a second connecting portion 92 that connects the rotating portion 91 and the first connecting portion 93.

[0069] The first connecting portion 93 is connected to the belt portion 70 and moves in the circumferential direction as the belt portion 70 moves in the circumferential direction along the outer peripheral surface 101D. The second connecting portion 92 also has a mechanism that transmits the movement of the first connecting portion 93 to the rotating portion 91. In other words, the second connecting portion 92 is a link mechanism that converts the circumferential movement of the first connecting portion 93 into a force in a direction that rotates the rotating portion 91. The rotating portion 91 rotates around a direction perpendicular to the outer peripheral surface 101D due to the force received from the second connecting portion 92.

[0070] Shielding portion 21F rotates around rotation shaft 22 and tilts relative to ejection surface 101A, thereby opening and closing shutter 20F. By providing a mechanism for driving shielding portion 21F (belt portion 70, belt driving portion 80, shutter rotating portion 90) on outer peripheral surface 101D, it is possible to reduce the burden on the mechanism for driving shielding portion 21F even if housing portion 101 (shielding portion 21F) becomes larger.

[0071] <Modification 2-1> Next, a modification of the present technology will be described. In the second embodiment, there was one belt portion 70, but in this modification, there are two belt portions 70. Fig. 9 is a diagram showing a modification of the belt portion 70, in which (A) the shielding portion 21F is a rigid body, (B) the shielding portion 21F is a flexible body, and (C) is a diagram showing a state in which the shutter 20F is closed on the left and a state in which the shutter 20F is open on the right.

[0072] The belt portion 70 has a first belt portion 70A and a second belt portion 70B. The first belt portion 70A and the second belt portion 70B are arranged parallel to each other along the outer peripheral surface 101D. The shutter 20F has a foldable hinge H (passive hinge) between the two shielding portions 21F, and a fixing portion 94 that fixes the shutter 20F to the first belt portion 70A is provided on the side of one of the shielding portions 21F, and a first connecting portion 93 that connects the shutter 20F to the second belt portion 70B is provided on the side of the other shielding portion 21F.

[0073] Additionally, the second connection portion 92F connecting the other shielding portion 21F and the first connection portion 93 moves the shielding portion 21F in the direction of the moved first connection portion 93 as the second belt portion 70B moves. That is, as shown in Fig. 9C , by moving the second belt portion 70B toward the fixing portion 94 from a state in which the shutter 20F is closed (left diagram in Fig. 9C ), the two shielding portions 21F move to close, and the shutter 20F becomes an open state (right diagram in Fig. 9C ).

[0074] 9(A), when the shielding portion 21F is made of a rigid body, it may be made bendable using a hinge H or the like. Alternatively, as shown in FIG. 9(B), the shielding portion 21F may be made of a flexible body such as an elastic body, in which case it can be bent and stretched without using a hinge H.

[0075] <Modification 2-2> Next, a modification of the present technology will be described. In this modification, the belt units 70 may be configured to grip different belt units 70. Fig. 10 is a diagram showing a modification of the belt unit 70, in which (A) the first connection portions 93 are connected to different belt units 70, (B) the first connection portions 93 are connectable to different belt units 70, and (C) is a cross-sectional view of a first connection portion 93G.

[0076] In the above-described embodiment, the same belt portion 70 (for example, the second belt portion 70B) is grasped (connected), but in this modified example, each shielding portion 21 may be configured to grasp a different belt portion 70A, 70B.

[0077] As shown in FIGS. 10B and 10C, the first connecting portion 93 may be configured to be able to select which belt portion 70A, 70B to grip.

[0078] This allows the opening / closing angle and the speed of change of each shielding portion 21 to be individually controlled by controlling which belt portion 70 the shielding portion 21 of each shutter 20 grasps. In other words, one shielding portion 21 grasps the first belt portion 70A, and the other shielding portion 21 grasps the second belt portion 70B. When the belts are moved in the same direction, they tilt in the same direction, which makes it easier to straighten the flow of wind. Conversely, when the belts are moved in opposite directions, they tilt in opposite directions, which makes it easier to create turbulence. Depending on which belt portion 70A, 70B is grasped, the wind presented to the user can be expressed in a variety of ways. Of course, the number of belt portions 70 is not limited to two, and may be three or more.

[0079] Third Embodiment Next, a third embodiment of the present technology will be described. 11 is a diagram of a fluid control device 1H according to a third embodiment of the present technology, in which (A) is a diagram of the fluid control device 1 without the rectifying mechanism 200 in an open state with the shutter 20, (B) is a diagram of the fluid control device 1 without the rectifying mechanism 200 in a state in which the shutter 20 is tilted at a predetermined angle, (C) is a diagram of the fluid control device 1H with the rectifying mechanism 200 in an open state with the shutter 20, and (D) is a diagram of the fluid control device 1H with the rectifying mechanism 200 in a state in which the shutter 20 is tilted at a predetermined angle. Below, configurations different from the first embodiment will be mainly described, and configurations similar to those in the first embodiment will be denoted by the same reference numerals, and description thereof will be omitted or simplified.

[0080] The fluid control device 1H further includes a rectifying mechanism 200 that is provided in the housing 101 and controls the direction of the air flow discharged from the ejection surface 101A. As shown in FIG. 11(D), the rectifying mechanism 200 controls the air W discharged from the ejection surface 101A so that it flows in a predetermined direction. The rectifying mechanism 200 has a hollow shape, and the hole diameter, as viewed from the ejection surface 101A side, becomes smaller as it moves away from the ejection surface 101A. This allows the air W to be discharged in the desired direction.

[0081] 11(C), when the shutter 20 is tilted at a predetermined angle, the air W flows in the tilted direction. However, by providing a rectifying mechanism 200 (nozzle), the air W can be discharged in a desired direction even when the shutter 20 is tilted at a predetermined angle, as shown in FIG. 11(E). Furthermore, by providing the rectifying mechanism 200, the diffusion range of the air W can be further controlled.

[0082] <Modification 3-1> Next, a modification of the present technology will be described. In this modification, the flow straightening mechanism 200 has a structure in which the shutter 20 is not visible from the discharge side. Fig. 12 shows a fluid control device 1I provided with the flow straightening mechanism 200.

[0083] The straightening mechanism 200A has an inlet 201A through which the air W discharged from the discharge surface 101A flows in, an outlet 202A through which the air W flowing in from the inlet 201A flows out, and a flow passage 203A that connects the inlet 201A and the outlet 202A and through which the shutter 20 is not visible from the outlet 202A.

[0084] In this embodiment, the flow path 203A is configured to be approximately L-shaped and curved, so that the shutter 20 is not visible from the outlet 202A. This allows the user to hide the shutter 20.

[0085] <Fourth embodiment> Next, a fourth embodiment of the present technology will be described. Figure 13 is a diagram of an air volume variable device 10J according to a fourth embodiment of the present technology, in which (A) is a diagram showing the shutter 20 in a closed state due to a spring B provided on the shutter 20, and (B) is a diagram showing the shutter 20 provided with the spring B in an open state due to the flow of air W. Below, configurations different from the first embodiment will be mainly described, and configurations similar to those in the first embodiment will be assigned the same reference numerals, and descriptions thereof will be omitted or simplified.

[0086] The air volume variable device 10J has a spring B that is provided between the shutter 20 and the discharge surface 101A and exerts an elastic force in a direction that closes the shutter 20. As shown in Figures 13A and 13B, when the wind speed (wind pressure) of the air W is smaller than the elastic force of the spring, the shutter 20 is in a closed state, and when the wind speed (wind pressure) of the air W is greater than the elastic force of the spring, the shutter 20 is in an open state. In other words, the spring B always applies a force that keeps the shutter 20 in a closed state, and the fan 110 is rotated, and the wind speed is adjusted by the control unit 30 based on the elastic force of the spring B, thereby adjusting the opening / closing angle of the shutter 20.

[0087] Fifth Embodiment Next, a fifth embodiment of the present technology will be described. Fig. 14 is a diagram illustrating control of the rotation speed of the fan 110 according to the fifth embodiment of the present technology, in which (A) is a diagram illustrating a case in which the rotation speed of the propeller 111 of the fan 110 is constant, and (B) is a diagram illustrating a case in which the rotation speed of the propeller 111 of the fan 110 changes in accordance with the opening and closing of the shutter 20. Below, configurations different from the first embodiment will be mainly described, and configurations similar to those in the first embodiment will be assigned similar reference numerals, and descriptions thereof will be omitted or simplified.

[0088] In this embodiment, the control unit 30 may control not only the opening / closing angle of the shutter 20 but also the rotation speed of the fan 110. Here, the control unit 30 controls the rotation speed per unit time of the fan 110 based on the content.

[0089] As shown in Fig. 14A, if the fan 110 is rotating regardless of whether the shutter 20 is open or closed, for example, even if a quiet scene is desired to be presented to the user, the user will be presented with noise caused by the rotation of the fan 110. However, as shown in Fig. 14B, by controlling the rotation speed of the fan 110 in accordance with the opening and closing of the shutter 20, it is possible to reduce the noise caused by the rotation of the fan 110. Furthermore, by suppressing the rotation speed of the fan 110, it is possible to further reduce power consumption.

[0090] Here, the memory 33 may store parameters for the opening / closing angle of the shutter 20 and the rotation speed of the fan 110 according to the content, which allows the control unit 30 to control the opening / closing angle of the shutter 20 and the rotation speed of the fan 110 based on the content.

[0091] <Sixth Embodiment> Next, a sixth embodiment of the present technology will be described. Fig. 15 is a diagram of the opening and closing angle of the shutter 20 in the sixth embodiment of the present technology, where (A) is a diagram of the shutter 20 in a closed state, (B) is a diagram showing the opening and closing angle of the shutter 20 in the first embodiment, and (C) is a diagram showing the opening and closing angle of the shutter 20 in this embodiment. Fig. 16 is a diagram of the opening and closing angle of the shutter 20 in the sixth embodiment, where (A) is a second diagram showing the opening and closing angle of the shutter 20, (B) is a third diagram showing the opening and closing angle of the shutter 20, and (C) is a fourth diagram showing the opening and closing angle of the shutter 20. Below, configurations different from the first embodiment will be mainly described, and configurations similar to those in the first embodiment will be assigned the same reference numerals, and descriptions thereof will be omitted or simplified.

[0092] 15(A) and (B), even if the control unit 30 sends a control signal to close the opening / closing angle (pitch angle) of the shutter 20 at a constant speed (solid line portion in FIG. 15), the actual opening / closing angle can be suddenly closed due to wind pressure or the like, resulting in a distinctive sound (a "clack"). Therefore, the control unit 30 controls the speed at which the shutter 20 is closed. In other words, when closing the shutter 20, the control unit 30 drives the shutter 20 from the open state to the closed state at a first speed for a predetermined time, and after the predetermined time, closes the shutter 20 at a second speed slower than the first speed (see FIG. 15(C)).

[0093] This reduces the distinctive sound that occurs immediately before the shutter 20 closes. Control of the opening / closing angle of the shutter 20 is not limited to Fig. 15(C), and as shown in Fig. 16(A), a control signal may be temporarily sent to open the shutter 20 midway. Furthermore, as shown in Fig. 16(B), after controlling to close the shutter 20 for a predetermined time, the control may be suspended for a certain period of time before starting control to close the shutter 20 again.

[0094] As shown in FIG. 16C, these controls may be performed not only when the shutter 20 is closed, but also at the moment when the angle of the shutter 20 switches between positive and negative.

[0095] In the above-described embodiment, the control unit 30 controls the speed at which the shutter 20 is closed during operation, but of course this is not limited to this and the control unit 30 may also control the speed at which the shutter 20 is opened. Furthermore, the control unit 30 controls the speed at which the shutter 20 is closed so as to slow down, but it may also control the speed from a slow speed to a fast speed. Of course, this is not limited to when the shutter 20 is closed, and the control unit 30 may also control the shutter 20 so as to go from a slow speed to a fast speed when the shutter 20 is opened. Furthermore, the control of the opening and closing speed of the shutter 20 is not limited to the control unit 30, but may be performed by another physical mechanism.

[0096] <Modification 6-1> Next, a modification of the present technology will be described. In this modification, the rotation shaft 22 is offset to reduce the unique sound that occurs when the shutter 20 is closed. Figure 17 is a diagram showing a state in which the shutter 20 is closed, where (A) is a diagram in which the rotation shaft 22 is disposed at the center of the shielding portion 21, and (B) is a diagram in which the rotation shaft 22 is disposed offset from the center of the shielding portion 21.

[0097] The area of ​​the shutters 20 that receives the air W when multiple shutters 20 are closed will be described. As shown in Figure 17(A) , when the rotation shaft 22 is provided (symmetrically) so as to pass through the center of the surface that receives the air W, the shutter 20 on the right that receives a force in the closing direction receives more air W than the shutter 20 on the left that receives a force in the opening direction. In this case, the shutters 20 close with force, producing a distinctive sound.

[0098] 17(B), when the rotation axis 22 is provided so as to pass through a position offset from the center of the surface receiving the air W, the shutter 20 on the left side that receives a force in the opening direction has a larger area receiving the air W than the shutter 20 on the right side that receives a force in the closing direction. In this case, the force of the air W (wind force) can be prevented from causing the shutters 20 to close forcefully.

[0099] Seventh Embodiment Next, a seventh embodiment of the present technology will be described. Fig. 18 is a diagram of a blower device 100A according to a sixth embodiment of the present technology, where (A) is a front view of the blower device 100A and (B) is a perspective view of the blower device 100A. Fig. 19 is a plan view of a fan 110A. Fig. 20 is a diagram of the blower device 100A, where (A) is a plan view of the blower device 100A, (B) is a view in which the fan 110A has been moved in one direction, and (C) is a view in which the fan 110A has been moved in the other direction. Fig. 21 is a cross-sectional view of the blower device 100A, where (A) is a cross-sectional view of the blower device 100A, (B) is a cross-sectional view in which the fan 110A has been moved in one direction, and (C) is a cross-sectional view in which the fan 110A has been moved in the other direction. 22A and 22B are front views of the blower 100A, where (A) is a front view of the blower 100A, (B) is a front view of the blower 110A with the fan 110A moved in one direction, and (C) is a front view of the fan 110A with the fan moved in the other direction. The following description will mainly focus on configurations that differ from the first embodiment, and configurations that are similar to those in the first embodiment will be denoted by the same reference numerals and descriptions thereof will be omitted or simplified.

[0100] [Regarding the Fan Configuration] In this embodiment, the fan 110A itself functions as the air volume variable device 10. In other words, the rotor 111A of the fan 110 functions as the shutter 20 described above. The fan 110A may be configured to be able to change its pitch angle (the angle of rotation (tilt) around the Y axis). As shown in these figures, the fan 110A includes rotor 111A, a rotary drive source 112A, a rotary shaft 113A, a pitch drive source 114A, and a pitch angle change mechanism 115A.

[0101] As shown in Figures 18(A) and (B), four rotors 111A are provided. Each rotor 111A is connected to a rotary shaft 113A and rotated by the rotary shaft 113A. The pitch angle of each rotor 111A is changed by a pitch angle change mechanism 115A. The shape and number of rotors 111A are not particularly limited. A rotary drive source 112A generates rotational power. A general motor can be used as the rotary drive source 112A. The rotary shaft 113A has a longitudinal direction in the X direction and connects the rotors 111A to the rotary drive source 112A. The rotary shaft 113A is rotated by the rotary drive source 112A, causing the rotors 111A to rotate.

[0102] As shown in Figures 20(A) to 20(C), two pitch drive sources 114A are provided, which generate rotational power to change the pitch angle of the rotor 111A. A servo motor can be used as the pitch drive source 114A. The pitch angle change mechanism 115A is separate from the rotation of the rotary shaft 113A and transmits the force of the pitch drive source 114A in a direction parallel to the axial direction (X direction) of the rotary shaft 113A, thereby changing the pitch angle of the rotor 111A. The control unit 30 also controls the pitch drive source 114A to change the pitch angle of the rotor 111A and adjust the air flow rate.

[0103] Specifically, the pitch angle change mechanism 115A includes an arm 116A, a movable part 117A, a sliding shaft 118A, and a handle 119A. One end of the arm 116A is fixed to the output shaft of the pitch drive source 114A, and the other end is rotatably connected to the movable part 117A. As a result, the arm 116A moves the movable part 117A along the axial direction (X direction) of the rotation shaft 113A by rotation of the pitch drive source 114A. The movable part 117A is connected to the arm 116A and the sliding shaft 118A, and moves along the axial direction (X direction) of the rotation shaft 113A by the arm 116A, sliding the sliding shaft 118A in the same direction (X direction).

[0104] The sliding shaft 118A rotates together with the rotating shaft 113A and slides along the axial direction (X direction) of the rotating shaft 113A by the movable part 117A. A bearing is provided between the movable part 117A and the sliding shaft 118A, so that the rotation of the sliding shaft 118A is separated from the movement caused by the movable part 117A. One handle 119A is provided for each rotor 111A.

[0105] The handle 119 and the rotors 111 are connected and rotate around the center of rotation. A protrusion 119a is provided at a position spaced from the center of rotation of the handle 119A. The sliding shaft 118A is provided with the same number of recesses (not shown) as the number of handles 119A, and the protrusions 119a are inserted into the recesses. As a result, when the sliding shaft 118A slides due to the driving of the pitch drive source 114A, the handles 119A and the rotors 111A rotate around the center of rotation C, and the pitch angle of each rotor 111A changes.

[0106] FIGS. 20A to 20C are schematic diagrams showing changes in the pitch angle of the fan 110A. In FIG. 21, the distances G1 to G3 between one end 113a of the rotating shaft 113 and the movable part 117 are shown, as well as the pitch angle A and airflow R. In the state shown in FIG. 20A, the movable part 117A is in a predetermined position, and the distance between one end of the rotating shaft 113A and the movable part 117A is G1, as shown in FIG. 21A. At this time, the pitch angle A of the rotor 111A is 0°, and the blade surface is perpendicular to the axial direction (X direction) of the rotating shaft 113A, as shown in FIGS. 20A, 21A, and 22A. In this state, no airflow is generated even when the rotor 111A is rotated.

[0107] As shown in Fig. 20(B), when pitch drive source 114A is driven and arm 116A is rotated as shown by the arrow, movable part 117A and sliding shaft 118A move away from rotation drive source 112A along the axial direction (X direction) of rotation shaft 113A as shown by the arrow in Fig. 20(B) and Fig. 21(B). As shown in Fig. 21(B), distance G2 between one end 113a of rotation shaft 113A and movable part 117A is larger than distance G1, and the difference is, for example, 3 mm.

[0108] This movement of the sliding shaft 118A rotates the handle 119A, causing the rotor 111A to rotate as shown by the arrow in Fig. 21(B). As a result, the pitch angle A becomes positive as shown in Figs. 21(B) and 22(B), and the blade surface of the rotor 111A is inclined with respect to the axial direction (X direction) of the rotation shaft 113A. In this state, when the rotor 111A is rotated, an airflow R is generated and sent out from the fan 110, as shown in Fig. 21(B). The pitch angle A is, for example, +65°.

[0109] Next, as shown in Figure 20(C), when pitch drive source 114A is driven and arm 116A is rotated as shown by the arrow, movable part 117A and sliding shaft 118A move toward rotation drive source 112A along the axial direction (X direction) of rotation shaft 113A as shown by the arrows in Figures 20(C) and 21(C). As shown in Figure 21(C), distance G3 between one end 113a of rotation shaft 113A and movable part 117A is smaller than distance G1, and the difference is, for example, 3 mm.

[0110] This movement of the sliding shaft 118A rotates the handle 119A, causing the rotor 111A to rotate as shown by the arrow in Fig. 21(C). As a result, as shown in Figs. 21(C) and 22(C), the pitch angle A becomes negative, and the blade surface of the rotor 111A is inclined with respect to the axial direction (X direction) of the rotation shaft 113A. In this state, when the rotor 111A is rotated, an airflow R is generated that is sucked into the fan 110A, as shown in Fig. 21(B). The pitch angle A is, for example, -65°.

[0111] The pitch angle change mechanism 115A has the above-described configuration. However, the configuration of the pitch angle change mechanism 115A is not limited to the above, and may be any mechanism that transmits the force of the pitch drive source 114A in a direction parallel to the axial direction (X direction) of the rotation shaft 113A, separate from the rotation of the rotation shaft 113A, and changes the pitch angle of the rotor 111A. For example, the pitch angle change mechanism 115A may be one that uses a feed screw that generates linear motion when rotated.

[0112] As described above, the fan 110A can change the pitch angle of the rotor 111A independently of the rotation of the rotor 111A. This allows the fan 110A to quickly control the airflow velocity (including the presence or absence of airflow). Specifically, the fan 110A can instantly generate an airflow by changing the pitch angle while the rotor 111A is rotating at a constant speed with the pitch angle set to 0°. With a typical fan, when the rotor is stopped and no airflow is being generated, and the rotor is rotated to generate an airflow, it takes time for the rotation speed to increase, making it difficult to instantly generate an airflow. Similarly, when changing the airflow velocity, the fan 110A can instantly change the flow velocity by changing the pitch angle, but a typical fan takes time to change the rotation speed and cannot instantly change the flow velocity.

[0113] By making the pitch angle of the fan 110A variable, the flow velocity of the airflow can be controlled quickly, and the time resolution of the airflow can be increased. Therefore, the fluid control device 1F can achieve a high time resolution of the airflow (that is, by controlling the pitch drive source 114A with the control unit 30, the pitch angle of the rotor 111A can be changed, and the flow velocity can be changed at high speed).

[0114] Eighth Embodiment Next, an eighth embodiment of the present technology will be described. Fig. 23 is a diagram of a fluid control device 1K according to an eighth embodiment of the present technology, as seen from the side. Fig. 24 is a cross-sectional view of the fluid control device 1K according to the eighth embodiment of the present technology. Fig. 25 is a diagram of the fluid control device 1K according to the eighth embodiment of the present technology, where (A) is a diagram as seen from above and (B) is a diagram as seen from the shutter 20F side. Below, configurations different from the second embodiment will be mainly described, and configurations similar to those in the second embodiment will be assigned similar reference numerals, and descriptions thereof will be omitted or simplified.

[0115] The fluid control device 1K differs from the second embodiment in the configuration of the air volume variable device 10K. The air volume variable device 10K includes a belt 70K provided along the outer peripheral surface 101D of the housing 101 and movable along the outer peripheral surface 101D of the housing 101, a belt drive unit 80 that controls the movement of the belt 70K, and a shutter rotation unit 90K that is connected to the belt 70 along the outer peripheral surface 101D of the housing 101 and rotates about a direction perpendicular to the outer peripheral surface 101D of the housing 101 as the belt 70 moves. In this embodiment, the shutter rotation unit 90K in particular has a different configuration from the second embodiment. In this embodiment, the opening and closing of the shutter 20F is controlled by two belts (a first belt 701K and a second belt 702K) described below.

[0116] The belt drive unit 80 enables each of the belts 70K to move along the outer circumferential surface 101D. Because the shutter 20F is opened and closed based on the distance traveled by the belt 70K, the distance (range) traveled by the belt 70K is not particularly limited and can be set arbitrarily. The belt drive unit 80 is driven by, for example, a motor, and the motor is controlled by the above-mentioned control unit 30. In this embodiment, because there are two belts 70K, two belt drive units 80 are used.

[0117] The shutter rotating unit 90K has a pulley 901K connected to the belt unit 70K, a first shaft 902K (shaft) provided on the pulley 901K, a first gear 903K provided on the first shaft 902K and to which the rotation of the pulley 901K is transmitted via the first shaft 902K, and a second gear 904K connected to the shutter 20F and which rotates around a direction perpendicular to the outer surface 101D of the housing unit 101 by transmitting the rotation of the first gear 903K.

[0118] Furthermore, the shutter rotating unit 90K has a second shaft 905K that connects the second gear 904K and the shutter 20F and transmits the rotation of the second gear 904K to the shutter 20F, a support member 906K that is provided on the outer surface 101D of the housing unit 101 and supports the above-mentioned pulley 901K, the first shaft 902K, and the second shaft 905K, and a first bearing B1, a second bearing B2, and a third bearing B3 that are provided (fixed) to the support member 906K and support the first shaft 902K and the second shaft 905K.

[0119] As shown in Figure 24, the support member 906K has: a support surface portion 9063K provided on the outer peripheral surface 101D of the housing portion 101 and having a surface (curved surface) roughly parallel to the outer peripheral surface 101D; a first support plate portion 9061K provided approximately perpendicular to the support surface portion 9063K (along the Z-axis direction) and supporting one end of the first shaft 902K that is on the first gear 903K side (shutter 20F side); and a second support plate portion 9062K provided approximately perpendicular to the support surface portion 9063K (along the Z-axis direction) and supporting the other end of the first shaft 902K that is on the opposite side of the first gear 903K side (shutter 20F side) of the first shaft 902K (the side opposite the first support plate portion 9061K in the X-axis direction).

[0120] The first support plate 9061K has a first hole 90611K through which the first shaft 902K can be inserted in the X-axis direction. The first hole 90611K is provided with the first bearing B1 described above, which rotatably supports the first shaft 902K.

[0121] The second support plate 9062K has a second hole 90621K through which the first shaft 902K can be inserted in the X-axis direction. The second hole 90621K is provided with the second bearing B2 described above, which rotatably supports the first shaft 902K.

[0122] The support surface portion 9063K also has a hole portion 90631K through which the second shaft 905K passes. The hole portion 90631K is provided with the third bearing B3 described above and rotatably supports the second shaft 905K.

[0123] 25(A) and (B), the shutter rotation unit 90K further includes a plurality of belt rotation units 91K on both sides of the pulley 901K when viewed from the shutter 20F side (when viewed from the X-axis direction). The plurality of belt rotation units 91K are cylindrical and centered in the X-axis direction, and are provided so as to be connected to the first support plate unit 9061K and the second support plate unit 9062K. In other words, as shown in FIGS. 25(A) and (B), the plurality of belt rotation units 91K are provided parallel to the first shaft 902K.

[0124] Here, in this embodiment, the shutter rotating portion 90K1 provided in the middle of the plurality of shutter rotating portions 90K shown in FIG. 25A will be described as an example.

[0125] As shown in Figures 23 and 25A, the belt unit 70K has a first belt 701K provided on the shutter 20F side and a second belt 702K provided on the opposite side of the first belt 701K from the shutter 20F side, and each is driven by the belt drive unit 80. In this embodiment, the belt unit 70K is provided in an annular shape along the outer circumferential surface 101D of the housing unit 101. Here, an annular shape means a loop, or a shape that forms a closed loop. In this embodiment, the belt unit 70K is a closed loop, but of course, this is not limited to this and may be an open loop (i.e., the belt unit 70K is not closed in a loop shape, but may be, for example, tethered to a part of the outer circumferential surface 101D).

[0126] The first belt 701K and the second belt 702K are timing belts, and have projections and recesses formed on the outer peripheral surface 101D of the housing 101.

[0127] The pulley 901K includes a first pulley 9011K connected to the first belt 701K and a second pulley 9012K connected to the second belt 702K. The first pulley 9011K is an idling pulley that is rotatably disposed around the first shaft 902K and rotates around a direction parallel to the axial direction of the first shaft 902K. The first pulley 9011K does not rotate the first shaft 902K. In other words, even if the first belt 701K is driven, the first pulley 9011K rotates idly around the first shaft 902K, and therefore the first shaft 902K does not rotate.

[0128] On the other hand, the second pulley 9012K is a timing pulley that is fixedly provided around the first shaft 902K and rotates around a direction parallel to the axial direction of the first shaft 902K. The first shaft 902K is also rotated by the second pulley 9012K. In other words, when the second belt 702K is driven, the unevenness of the second pulley 9012K engages with the unevenness of the second belt 702K, causing the second pulley 9012K to rotate, and the rotation is transmitted to the first shaft 902K, causing the first shaft 902K to rotate.

[0129] As shown in FIG. 25B , the belt rotation units 91K provided on both sides of the second pulley 9012K are configured to apply tension to the second belt 702K, and the second belt 702K passes through the belt rotation unit 91K on the outer peripheral surface 101D side of the housing 101. The belt rotation units 91K are located closer to the outer peripheral surface 101D than the second pulley 9012K in the direction perpendicular to the outer peripheral surface 101D of the housing 101. In other words, as shown in FIG. 25B , the second belt 702K has a convex shape when the shutter rotation unit 90K1 is viewed from the shutter 20F side. In this embodiment, the concave portions of the second pulley 9012K and the convex portions of the second belt 702K, and the convex portions of the second pulley 9012K and the concave portions of the second belt 702K, are engaged with each other, and the number of such engagements is five. Of course, this is not a limitation, and two or three meshings are also possible. Furthermore, with regard to the way in which the second belt 702K is engaged with the second pulley 9012K, as shown in FIG. 25(B), the angle d at which the second belt 702K meshes with the second pulley 9012K is approximately 60 degrees. This makes it possible to prevent the second belt 702K from slipping relative to the second pulley 9012K. Of course, this is not a limitation, and it is sufficient if the angle d is 90 degrees or less.

[0130] On the other hand, as shown in FIG. 25B, the belt rotation units 91K provided on both sides of the first pulley 9011K are provided so as to be located on the outer circumferential surface 101D side of the housing unit 101 with respect to the first belt 701K.

[0131] That is, in the shutter rotating portion 90K1, the first shaft 902K is not rotated by the first belt 701K, but the first shaft 902K can be rotated by the second belt 702K.

[0132] 25A, the shutter rotation portions 90K2 provided on both sides of the shutter rotation portion 90K1 are different from the shutter rotation portion 90K1. That is, in the shutter rotation portion 90K2, a first pulley 9011K', which is a timing pulley, is connected to the first belt 701K, and a second pulley 9012K', which is an idling pulley, is connected to the second belt 702K. As a result, in the shutter rotation portion 90K2, the first shaft 902K is rotated by the drive of the first belt 701K, and the shutter 20F opens and closes.

[0133] In this embodiment, the positions of the first pulley 9011K and the first pulley 9011K' of the shutter rotation unit 90K (which belt unit 70K they are connected to, and the positions of the timing pulley and the idling pulley) are alternated. This allows the shutters 20F to be opened and closed to be controlled, as the shutters 20F to be opened and closed differ depending on the belt unit 70K being driven. In other words, it is possible to mix some of the shutters 20F that open and some that remain closed, and it is possible to control the amount, direction, etc. of the fluid presented to the user.

[0134] In this embodiment, the first pulleys 9011K and the second pulleys 9012K are arranged alternately, but of course this is not limited to this and they may be arranged two by two alternately or randomly. This increases the variety of opening and closing patterns of the shutter 20F, making it possible to freely control the amount and direction of the fluid presented to the user.

[0135] In this embodiment, the belt unit 70K is a closed loop. This eliminates the restriction on the opening and closing angle of the shutter 20F caused by the belt drive unit 80, making it possible to control the amount and direction of the fluid presented to the user.

[0136] In this embodiment, it is determined in advance which shutter rotation part 90K the belt part 70K will drive, but of course this is not limited to this, and it is also possible to select which shutter rotation part 90K the belt part 70K will be attached to using a clip or the like.

[0137] Ninth Embodiment Next, a ninth embodiment of the present technology will be described. Fig. 26 is a diagram of a fluid control device 1L according to the ninth embodiment of the present technology, as seen from the shutter side. Fig. 27 is a diagram of the fluid control device 1L according to the ninth embodiment of the present technology, as seen from the top side. Hereinafter, configurations different from the eighth embodiment will be mainly described, and configurations similar to those in the eighth embodiment will be assigned similar reference numerals, and descriptions thereof will be omitted or simplified.

[0138] The fluid control device 1L differs from the eighth embodiment in the configuration of the air volume variable device 10L. The air volume variable device 10L includes a belt 70L provided along the outer peripheral surface 101D of the housing 101 and movable along the outer peripheral surface 101D of the housing 101, a belt drive unit 80 that controls the movement of the belt 70L, and a shutter rotation unit 90L that is connected to the belt 70L along the outer peripheral surface 101D of the housing 101 and rotates about a direction perpendicular to the outer peripheral surface 101D of the housing 101 as the belt 70L moves. In this embodiment, the shutter rotation unit 90L in particular has a different configuration from the eighth embodiment. In this embodiment, the opening and closing of the shutter 20F is controlled by two belts (a first belt 701L and a second belt 702L) described below.

[0139] The belt drive unit 80 enables the second belt 702L of the belt unit 70L to move along the outer circumferential surface 101D. Since the shutter 20F is opened and closed based on the distance traveled by the second belt 702L, the distance (range) traveled by the second belt 702L is not particularly limited and can be set arbitrarily. The belt drive unit 80 is driven by, for example, a motor, and the motor is controlled by the above-mentioned control unit 30.

[0140] The shutter rotating portion 90L has a pulley 901L connected to the belt portion 70L, a first shaft 902L provided on the pulley 901L, a first gear 903L provided on the first shaft 902L and to which the rotation of the pulley 901L is transmitted via the first shaft 902L, and a second gear 904L connected to the shutter 20F and which rotates around a direction perpendicular to the outer surface 101D of the housing portion 101 by transmitting the rotation of the first gear 903L.

[0141] Furthermore, the shutter rotating unit 90L has a second shaft 905L that connects the second gear 904L and the shutter 20F and transmits the rotation of the second gear 904L to the shutter 20F, a support member 906L that is provided on the outer surface 101D of the housing unit 101 and supports the above-mentioned pulley 901L, the first shaft 902L, and the second shaft 905L, and a first bearing B1, a second bearing B2, and a third bearing B3 that are provided (fixed) to the support member 906L and support the first shaft 902L and the second shaft 905L.

[0142] The support member 906L also has a hole 90631L through which the second shaft 905L passes. The hole 90631L is provided with the third bearing B3 described above and rotatably supports the second shaft 905L.

[0143] 26 and 27, the shutter rotation unit 90L further includes a plurality of belt rotation units 91L on both sides of the pulley 901L when viewed from the shutter 20F side. The plurality of belt rotation units 91L are provided so as to be connected to the first support plate unit 9061L and the second support plate unit 9062L. In other words, as shown in FIGS. 26 and 27, the plurality of belt rotation units 91L are provided parallel to the first shaft 902L.

[0144] Here, in this embodiment, the shutter rotating parts 90L1 and 90L2 provided in the middle of the plurality of shutter rotating parts 90L shown in FIGS. 26 and 27 will be described as an example.

[0145] As shown in FIGS. 26 and 27 , the belt unit 70L includes a first belt 701L provided on the shutter 20F side and a second belt 702L provided on the opposite side of the first belt 701L from the shutter 20F side, and the second belt 702L is driven by the belt drive unit 80. In this embodiment, the belt unit 70L is provided in an annular shape along the outer circumferential surface 101D of the housing 101. The first belt 701L is driven based on the drive of the second belt 702L. Here, the annular shape refers to a loop, or a shape that forms a closed loop. In this embodiment, the first belt 701L and the second belt 702L are closed loops, but this is not limiting, and the second belt 702L may be an open loop (i.e., the second belt 702L is not closed in a loop shape, but may be tethered to a portion of the outer circumferential surface 101D, for example).

[0146] 26 and 27 , in this embodiment, the driving force of the belt drive unit 80 is transmitted to the first belt 701L via the first pulley 9011L of the shutter rotation unit 90L1 and the first pulley 9011L' of the shutter rotation unit 90L2 (the first pulleys 9011L and 9011L' are attached inside the first belt 701L). In other words, as described above, the first belt 701L is a closed loop, and is wound around the first pulley 9011L and the first pulley 9011L' with sufficient tension to prevent the first belt 701L from slackening. The first belt 701L is also a timing belt, and is provided with concaves and convexes that mesh with concaves and convexes that are gears provided on the circumferential surfaces of the first pulleys 9011L and 9011L'.

[0147] The pulley 901L includes a first pulley 9011L connected to the first belt 701L and a second pulley 9012L connected to the second belt 702L. The first pulley 9011L will be described later.

[0148] The second pulley 9012L is a timing pulley that is fixedly mounted around the first shaft 902L and rotates around a direction parallel to the axial direction of the first shaft 902L. The first shaft 902L is rotated by the second pulley 9012L. In other words, when the second belt 702L is driven, the unevenness of the second pulley 9012L engages with the unevenness of the second belt 702L, causing the second pulley 9012L to rotate, and the rotation is transmitted to the first shaft 902L, causing the first shaft 902L to rotate.

[0149] 26, the belt rotation portions 91L provided on both sides of the second pulley 9012L are arranged to apply tension to the second belt 702L, and the second belt 702L passes through the portion of the belt rotation portion 91L that is closer to the outer peripheral surface 101D of the housing 101. The belt rotation portions 91L are each located closer to the outer peripheral surface 101D than the second pulley 9012L in the direction perpendicular to the outer peripheral surface 101D of the housing 101. In other words, as shown in FIG. 26, the second belt 702L has a convex shape when the shutter rotation portion 90L1 is viewed from the shutter 20F side.

[0150] The first pulley 9011L is fixed to the first shaft 902L and rotates about a direction parallel to the axial direction of the first shaft 902L. The first shaft 902L is rotated by the second pulley 9012L. In other words, when the second belt 702L is driven, the unevenness of the second pulley 9012L engages with the unevenness of the second belt 702L, causing the second pulley 9012L to rotate, and the rotation is transmitted to the first shaft 902L. The first pulley 9011L then rotates in conjunction with the rotating first shaft 902L. At this time, the first belt 701L described above also rotates.

[0151] 26, the shutter rotation section 90L2 provided on one side (adjacent position) is different from the shutter rotation section 90L1. That is, in the shutter rotation section 90L2, the second pulley 9012L' is connected to the second belt 702L, but the second pulley 9012L' is an idling pulley. Therefore, even if the second belt 702L is driven, the second pulley 9012L' does not rotate the first shaft 902L'.

[0152] Here, similar to the first pulley 9011L of the shutter rotating unit 90L1, the first pulley 9011L' of the shutter rotating unit 90L2 is fixed to the first shaft 902L' and rotates around a direction parallel to the axial direction of the first shaft 902L'. The first pulley 9011L also rotates the first shaft 902L'. That is, the second belt 702L is driven, and the irregularities of the second pulley 9012L engage with the irregularities of the second belt 702L, causing the second pulley 9012L to rotate, and the rotation is transmitted to the first shaft 902L. The first pulley 9011L then rotates in conjunction with the rotating first shaft 902L. At this time, the first belt 701L described above also rotates. The first belt 701L rotates the first pulley 9011L', which in turn rotates the first shaft 902L', thereby controlling the opening and closing of the shutter 20F connected to the shutter rotating portion 90L2.

[0153] In this embodiment, the positions of the first pulley 9011L and the first pulley 9011L' of the shutter rotating unit 90L (the positions of the timing pulley and the idle pulley) are alternated, that is, the first pulley 9011L' can be driven in synchronization with the driving of the first pulley 9011L.

[0154] In this embodiment, the first pulleys 9011L and 9011L' are arranged alternately, but of course this is not limiting and the first pulleys 9011L and 9011L' may be arranged alternately in pairs or randomly, which increases the variety of opening and closing patterns of the shutter 20F.

[0155] In this embodiment, the first belt 701L is a closed loop. This eliminates the limitation on the opening and closing angle of the shutter 20F caused by the belt drive unit 80, allowing for free control of the amount and direction of the fluid presented to the user. Furthermore, because the first belt 701L is a closed loop, the shutter 20F can rotate continuously in the same direction without any limitation on the number of rotations. This allows the shutter structure to open and close at high speed, allowing for control of intermittent air flow / stop.

[0156] Furthermore, the directions in which the first gears 903L and 903L' are rotated by the first belt 701L may be the same as each other or may be opposite to each other. This makes it possible to further control the amount and direction of the fluid presented to the user. Furthermore, the mechanism for controlling the direction in which the first gears 903L and 903L' are rotated is not limited to the mechanism described above, and various other mechanisms may be used.

[0157] In this embodiment, the first belt 701L is used to drive the shutter rotation units 90L2 that are not driven by the second belt 702L, but of course this is not limited to this, and all of the shutter rotation units 90L may be driven using only one belt. In other words, in this embodiment, all of the second pulleys 90L of the shutter rotation units 90L are timing pulleys.

[0158] <Other Modifications> In addition to the above embodiments, a hot / cold source may be mounted on the intake surface 101B. A space for storing air (second fluid) heated or cooled by the hot / cold source may be provided. By configuring this space to be in communication with the intake surface 101B in conjunction with the opening and closing of the shutter 20, hot or cold air can be quickly presented to the user. The type of air that can be stored in this space is not limited to hot or cold air; it may also be smoke or scented air. Furthermore, the rotor 111 of the fan 110 or the shielding portion 21 of the shutter 20 itself may be provided with a Peltier element for controlling temperature. This also allows the user to be presented with hot or cold air. In addition to the Peltier element, any other substance, material, or element, such as aluminum foil, an odor-absorbing substance, or a decomposing substance, may be attached. Furthermore, the material of the shutter 20 is not particularly limited and may be, for example, metal or resin.

[0159] In the above-described embodiment, the material, composition, and configuration of the flow rectifying mechanism 200 (nozzle) are not particularly limited, and it may be, for example, hose-shaped or bellows-shaped.

[0160] Furthermore, in this embodiment, the control of opening and closing a single shutter 20 has been described, but of course, the present invention is not limited to this, and multiple shutters or shutters of multiple types (such as fans 110 with different shapes of rotor blades 111) may be combined. Furthermore, the multiple shutters may be driven by the same motor, or by different motors, or may be partially linked.

[0161] Furthermore, in the above-described modified example, an example of a combination of the fan 110 and a hot / cold source has been described, but of course, the present invention is not limited to this, and the hot / cold source alone may be used.

[0162] The present technology can also be configured as follows.

[0163] (1) A fluid control device that controls a flow of a first fluid based on content, comprising: an air volume variable device having a shutter that is provided on a flow path through which the first fluid flows and that adjusts the flow of the first fluid by opening and closing with respect to the flow path of the first fluid, and a control unit that controls the degree of opening and closing of the shutter based on the content. (2) The fluid control device according to (1), wherein the shutter has a closed state that covers a surface perpendicular to the flow direction of the first fluid as viewed from the flow direction of the first fluid, and an open state that is inclined with respect to the flow path, and the control unit controls the closed state and the open state of the shutter based on the content. (3) The fluid control device according to (1) or (2), further comprising: a housing having an intake surface that sucks in the first fluid, a discharge surface that discharges the sucked first fluid, and an air passage connecting the intake surface and the discharge surface, and a blower having a fan provided in the air passage and generating a fluid flow from the intake surface to the discharge surface. (4) The fluid control device according to (3), wherein the shutter is provided on the intake surface side or the discharge surface side of the housing. (5) The fluid control device according to (3), further comprising: a rectifying mechanism provided on the housing and controlling the direction and diffusion range of the air flow discharged from the discharge surface. (6) The fluid control device according to (3), wherein the control unit controls the number of rotations of the fan based on the content. (7) The fluid control device according to any one of (1) to (6), wherein the control unit varies the opening and closing speed of the shutter while the shutter is being driven. (8) The fluid control device according to (7), wherein, when changing the shutter from an open state to a closed state, the control unit drives the shutter from the open state to the closed state at a first speed for a predetermined time, and after the predetermined time, changes the shutter to the closed state at a second speed slower than the first speed.(9) The fluid control device according to any one of (1) to (8), further comprising a hot / cold source provided on the intake surface side, wherein the air volume variable device discharges a second fluid generated by heating or cooling the hot / cold source to a predetermined temperature to the discharge surface side. (10) The fluid control device according to any one of (1) to (9), wherein the control unit controls the degree of opening and closing of the shutter based on scene conditions. (11) The fluid control device according to any one of (1) to (10), wherein the air volume variable device is a fan, the shutter is a rotor of the fan, and the control unit adjusts the flow of the first fluid by changing the pitch angle of the rotor. (12) The fluid control device according to any one of (1) to (11), wherein the first fluid is air. (13) The fluid control device according to (3), wherein the air volume variable device further includes a shutter drive source and a shutter angle change mechanism that transmits the force of the shutter drive source and changes the degree of opening and closing of the shutter relative to the flow path. (14) The fluid control device according to (3), wherein the air volume variable device further includes a belt portion movably provided along the outer peripheral surface of the housing portion, a belt drive portion that controls the movement of the belt portion, and a shutter rotation portion that is connected to the belt portion along the outer peripheral surface of the housing portion and rotates about a direction perpendicular to the outer peripheral surface of the housing portion as the belt portion moves, and the shutter rotation portion is connected to the shutter and opens and closes the shutter by rotation of the shutter rotation portion. (15) The fluid control device according to any one of (1) to (14), wherein the air volume variable device further includes a receiving portion that receives a control signal based on the content, and the control portion controls the degree of opening and closing of the shutter based on the control signal. (16) The fluid control device according to (15) above, wherein the control signal is a signal conforming to the DMX512 standard.(17) A fluid control method for controlling a flow of a first fluid by a fluid control device based on content, comprising controlling, based on the content, an opening / closing degree of a shutter provided in a flow path through which the first fluid flows and adjusting the flow of the first fluid by opening and closing with respect to the flow path of the first fluid. (18) A program for controlling the flow of a first fluid based on content, comprising a step of causing a computer to execute, based on the content, a step of controlling, based on the content, an opening / closing degree of a shutter provided in a flow path through which the first fluid flows and adjusting the flow of the first fluid by opening and closing with respect to the flow path of the first fluid. (19) The fluid control device according to (14), wherein the shutter rotation unit has: a pulley connected to the belt unit, a shaft provided on the pulley, a first gear provided on the shaft and to which rotation of the pulley is transmitted via the shaft, and a second gear connected to the shutter and to which rotation of the first gear is transmitted so as to rotate about a direction perpendicular to an outer circumferential surface of the housing unit. (20) The fluid control device according to (15) above, wherein the first gear and the second gear are each constituted by a bevel gear. (21) The fluid control device according to (19) or (20) above, wherein the pulley includes a timing pulley, and the belt portion includes a timing belt.

[0164] REFERENCE SIGNS LIST 1... Fluid control device 10... Air volume variable device 20... Shutter 21... Shielding section 30... Control section 40... Support mechanism 100... Air blower 101... Housing section 110... Fan 111... Rotating blades W... Air

Claims

1. A fluid control device that controls the flow of a first fluid based on content, comprising: a shutter provided on a flow path through which the first fluid flows, the shutter adjusting the flow of the first fluid by opening and closing with respect to the flow path of the first fluid; and a control unit that controls the degree of opening and closing of the shutter based on the content. A fluid control device comprising a variable air volume device.

2. The fluid control device according to claim 1, wherein the shutter has a closed state covering a plane orthogonal to the flow direction of the first fluid as viewed from the flow direction of the first fluid and an open state inclined with respect to the flow path, and the control unit controls the closed state and the open state of the shutter based on the content. A fluid control device.

3. The fluid control device according to claim 1, further comprising: a housing portion having an intake surface that sucks in the first fluid, an exhaust surface that discharges the sucked first fluid, and a ventilation path that connects the intake surface and the exhaust surface; and a blower device having a fan provided in the ventilation path and generating a fluid flow from the intake surface toward the exhaust surface. A fluid control device.

4. The fluid control device according to claim 3, wherein the shutter is provided on the intake surface side or the exhaust surface side of the housing portion. A fluid control device.

5. The fluid control device according to claim 3, further comprising a rectifying mechanism provided in the housing portion and controlling the direction and diffusion range of the air flow discharged from the exhaust surface. A fluid control device.

6. The fluid control device according to claim 3, wherein the control unit controls the rotational speed of the fan based on the content. A fluid control device.

7. The fluid control device according to claim 1, wherein the opening and closing speed of the shutter is variable during the driving of the shutter. A fluid control device.

8. The fluid control device according to claim 7, wherein when the control unit closes the shutter from the open state, the control unit drives the shutter to close at a first speed for a predetermined time from the open state so as to be in the closed state, and after the predetermined time, closes the shutter at a second speed slower than the first speed. A fluid control device.

9. The fluid control device according to claim 3, further comprising a temperature control source provided on the intake surface side, wherein the air volume variable device discharges the second fluid generated by heating or cooling the temperature control source to a predetermined temperature to the discharge surface side.

10. The fluid control device according to claim 1, wherein the control unit controls the opening degree of the shutter based on the conditions of the scene.

11. The fluid control device according to claim 1, wherein the air volume variable device is a fan, the shutter is the rotating blade of the fan, and the control unit adjusts the flow of the first fluid by changing the pitch angle of the rotating blade.

12. The fluid control device according to claim 1, wherein the first fluid is air.

13. The fluid control device according to claim 3, wherein the air volume variable device further includes a shutter drive source and a shutter angle change mechanism that transmits the force of the shutter drive source and changes the opening degree of the shutter with respect to the flow path.

14. The fluid control device according to claim 3, wherein the air volume variable device further includes a belt portion movably provided along the outer peripheral surface of the housing portion, a belt drive portion that controls the movement of the belt portion, and a shutter rotation portion connected to the belt portion along the outer peripheral surface of the housing portion and rotating about a direction orthogonal to the outer peripheral surface of the housing portion as the belt portion moves, and the shutter rotation portion is connected to the shutter and opens and closes the shutter as the shutter rotation portion rotates.

15. The fluid control device according to claim 1, wherein the air volume variable device further includes a receiving unit that receives a control signal based on the content, and the control unit controls the opening degree of the shutter based on the control signal.

16. The fluid control device according to claim 15, wherein the control signal is a signal in the DMX512 standard.

17. A fluid control method for controlling the flow of a first fluid by a fluid control device based on content, the method comprising controlling the degree of opening and closing of a shutter provided on a flow path through which the first fluid flows and adjusting the flow of the first fluid by opening and closing the shutter with respect to the flow path of the first fluid based on the content.

18. A program for controlling the flow of a first fluid based on content, the program causing a computer to execute a step of controlling the degree of opening and closing of a shutter provided on a flow path through which the first fluid flows and adjusting the flow of the first fluid by opening and closing the shutter with respect to the flow path of the first fluid based on the content.

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