Air vent

Abstract

This invention provides a multi-layer cone-shaped air diffuser that allows the direction of conditioned air to be arbitrarily switched according to the needs of occupants, while also preventing an increase in pressure loss and reducing noise, and offering easy maintenance. [Solution] The air diffuser 1 is a multi-layer cone type air diffuser 1 having at least an inner cone 11 and an outer cone 12, and blowing conditioned air CA into the room from the discharge opening 16. A chamber 20 with an open bottom is connected to the upper end 12a of the outer cone 12, an air intake port 22 for taking in conditioned air CA is provided on the upper surface of the chamber 20, a support part 30 for supporting and raising and lowering the inner cone 11 is provided inside the chamber 20, a motor for moving the inner cone 11 up and down is provided on the outer surface of the chamber 20, and the inner cone 11 and the motor are connected by a transmission mechanism 50.

Description

Technical Field

[0001] The present invention relates to a multi-layer cone-shaped air outlet that can arbitrarily switch the wind direction of air-conditioned air according to the needs of occupants in offices and other workplaces in office buildings.

Background Art

[0002] In a multi-layer cone-shaped air outlet, a technique for switching the wind direction (horizontal direction / vertical direction) from the blowing opening by raising and lowering the middle cone is known (for example, Patent Document 1). And this wind direction switching is generally performed manually, and in addition, there is also a known method of automatically switching by a sensor (a temperature-sensitive element such as a wax sensor or a shape memory alloy) that senses the temperature of the air-conditioned air and operates.

[0003] Also, a technique for connecting a motor inside the device to the middle cone and moving the middle cone up and down at a predetermined cycle by driving the motor, like the intermittent air blowing device described in Patent Document 2, is known. Note that Patent Document 2 describes that the up-and-down movement cycle of the middle cone can be arbitrarily set.

Prior Art Documents

Patent Documents

[0004] [

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, when manually switching the wind direction, the operator needs to directly move the middle cone up and down by hand, which becomes high-place work using a stepladder or the like and is dangerous. Furthermore, it takes a great deal of effort to perform switching operations on all of the plurality of air outlets installed in the room. [

[0006] Note: The patent number in the original text is replaced with **** in the translation for privacy reasons. You can replace it with the actual patent number according to the specific situation.Furthermore, while automatic switching can be achieved by using a temperature sensor that detects the temperature of the conditioned air, it only operates when switching between air conditioning modes (for example, horizontally during cooling and vertically during heating), and the switching occurs simultaneously, making it impossible to freely set individual airflow directions, such as vertical airflow during cooling. Moreover, in recent years, there has been a growing need for personal air conditioning, such as air conditioning only around seats.Considering this background, manual switching or automatic switching using sensors makes it difficult to meet the needs of individual occupants, thus creating a need for new air vents that can meet these recent needs.

[0007] On the other hand, while the intermittent air blowing device described in Patent Document 2 allows for arbitrary setting of the vertical movement cycle of the inner cone, the motor and other components are located inside the outer cone (cylindrical part). These components can act as obstacles, potentially increasing pressure loss or causing noise. Furthermore, the heat generated by the motor may affect the airflow. In addition, maintenance such as motor inspection and replacement is time-consuming.

[0008] Therefore, the present invention aims to provide a multi-layer cone-shaped air diffuser that can arbitrarily switch the direction of conditioned airflow according to the needs of occupants, prevent an increase in pressure loss, reduce noise, and is easy to maintain. [Means for solving the problem]

[0009] The air outlet according to the present invention is It is a multi-layer cone-type air diffuser having at least an inner cone and an outer cone, which blows conditioned air into the room from the outlet opening. A chamber with an open bottom is connected to the upper end of the outer cone. An air intake port for taking in conditioned air is provided on the upper surface of the chamber. A support part is provided within the chamber to support and raise / lower the central cone. A motor for moving the central cone up and down is provided on the outer surface of the chamber. The aforementioned cone and the motor are connected by a transmission mechanism.

[0010] With this configuration, the central cone can be raised and lowered by driving the motor to move the support part up and down. In addition, since the motor is located on the outside of the chamber, obstacles that obstruct the flow path inside the chamber can be reduced.

[0011] Furthermore, it is desirable that the air outlet be configured such that the motor is located on the outer surface and side of the chamber.

[0012] Furthermore, it is desirable that the air outlet be configured such that a fan is provided at the air intake to draw conditioned air into the chamber.

[0013] Furthermore, the transmission mechanism includes a rotating plate and an arm, The support portion has a rod that supports the central cone via a fixing member and a support member. One end of the arm is engaged with the support portion, The middle portion of the arm is engaged with the rod, It is preferable that the other end of the arm is engaged with the end of the rotating plate.

[0014] In addition, it is desirable that the air outlet be configured with a protruding member that extends inward beyond a vertical surface that extends vertically from the lower inner end of the frame. [Effects of the Invention]

[0015] The air outlet according to the present invention, with the above configuration, (1-1) By driving the motor, the central cone can be raised and lowered, making it easy to switch the direction of the conditioned air blown out from the outlet. This allows occupants to create a downward airflow directed towards them to feel the airflow, or to create a horizontal airflow when not needed to cool the entire room. (1-2) By installing the motor on the outside of the chamber, the number of obstacles (such as support parts and transmission mechanisms) that obstruct the airflow within the chamber can be reduced to the bare minimum, thereby suppressing the increase in pressure loss at the air outlet and the generation of noise caused by these obstacles. Furthermore, these obstacles do not affect the shape of the discharged airflow, and comfortable air conditioning can be supplied as desired by the occupants. (1-3) Because the motor is located on the outside of the chamber, maintenance work such as cleaning and replacing the motor can be easily performed.

[0016] (2) Furthermore, if the motor is built into the chamber, space will be required to accommodate the motor, increasing the height of the chamber. However, by not building the motor into the chamber and instead placing it on the outside and side of the chamber, the height of the chamber itself can be reduced, making installation possible even if the space above the ceiling where the air diffuser is to be installed is shallow.

[0017] Furthermore, by installing a fan at the air intake to draw conditioned air into the chamber, (3-1) A fan can draw conditioned air from the space above the ceiling into the air diffuser, and the airflow direction can be adjusted by a multi-layer cone before being supplied to the room. (3-2) Since the conditioned air is blown by a fan, the installation of ducts connecting the air conditioner and the air outlet is unnecessary, making ductless air conditioning possible. (3-3) Since stopping the fan operation also stops the airflow, it becomes possible to deliver conditioned air only to the necessary locations according to the needs of the occupants, thereby saving energy by cutting unnecessary power consumption while ensuring the comfort of the occupants.

[0018] (4) Furthermore, by having a transmission mechanism with a rotating plate and an arm, the rotational motion of the motor can be converted into vertical linear motion with a simple configuration of a rotating plate, an arm, and a rod. Therefore, the number of obstacles obstructing the flow path in the chamber can be reduced to the minimum necessary, and the increase in pressure loss at the air outlet and the generation of noise caused by obstacles can be suppressed.

[0019] (5) In addition, providing a protruding member enables the protruding member to suppress the diffusion of the blown air flow and generate an air flow that blows more downward when vertically blowing out (in a state where the middle cone rises by motor drive). As a result, it is possible to give a feeling of air to the occupants below the blowing opening, and more comfortable personal air conditioning can be realized.

Brief Description of the Drawings

[0020] [Figure 1] (i) is a front view showing an embodiment of the air outlet of the present invention, and (ii) is a rear view. [Figure 2] (i) is a bottom view showing an embodiment of the air outlet of the present invention, and (ii) is a plan view. [Figure 3] (i) is a right side view showing an embodiment of the air outlet of the present invention, and (ii) is a left side view. [Figure 4] It is a partial cutaway sectional view A-A of FIG. 1(i). [Figure 5] It is a partial cutaway sectional view B-B of FIG. 2(ii). [Figure 6] It is a view showing a state where the middle cone is raised based on FIG. 5. [Figure 7] It is a partially enlarged view of FIG. 6. [Figure 8] It is a partially enlarged view of the periphery of the arm shown in FIG. 5.

Embodiments for Carrying Out the Invention

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 8. The broken line arrows in FIGS. 5 to 7 indicate the flow of the air flow (air-conditioned air). For the same configurations as those already described, the same reference numerals are given in the drawings, and detailed descriptions thereof are omitted.

[0022] [Air outlet] First, the configuration of the air diffuser of the present invention will be described. The air diffuser of the present invention is a multi-layer cone type air diffuser having at least an inner cone and an outer cone, which blows conditioned air into the room from the discharge opening. In this embodiment, the air diffuser 1 is installed with the discharge opening 16 facing the room R (see Figures 5 and 6). In detail, a frame-shaped member 82 is installed within a grid partitioned by T-bars 81 arranged in a grid pattern that constitutes the system ceiling, and the air diffuser 1 is fixed on the T-bars 81 via the frame-shaped member 82 (see Figures 5 and 6). In this embodiment, the frame-shaped member 82 is made of painted sheet metal. The remaining part of the grid is fitted with a ceiling board 80. When the frame-shaped member 82 is placed on the T-bar 81, the short side and one of the long sides of the frame-shaped member 82 are supported by the T-bar 81. An L-shaped fitting (L-shaped bracket) is provided on the long side of the frame-shaped member 82 that is not resting on the T-bar 81, and the ceiling board 80 is placed on the remaining part of the grid and the L-shaped bracket.

[0023] Furthermore, the air outlet 1 is of the square anemone type, with a middle cone 11 and an outer cone 12 arranged concentrically, each inclined and widening toward the outer circumference (see Figures 1 and 2, etc.). In this embodiment, the middle cone 11 and outer cone 12 are aluminum extruded profiles. The outer shape of the middle cone 11 and outer cone 12 is square (see Figure 2(i)). In addition, a square-shaped pan member 13 is provided in the center of the middle cone 11. Note that the sizes of these are not particularly limited and can be arbitrarily modified in design, and their shapes are not limited to the square shown as an example.

[0024] Furthermore, a metal chamber 20 with an open bottom is connected to the upper end 12a of the outer cone 12 (see Figure 1). An air intake port 22 for taking in conditioned air CA is provided on the upper surface of the chamber 20 (see Figure 5).

[0025] Furthermore, a support section 30 is provided inside the chamber 20 to support and raise / lower the central cone 11 (see Figure 5).

[0026] Furthermore, a flow straightening member 14 is provided inside the chamber 20 to straighten the conditioned air CA taken in from the air intake port 22 (see Figures 4 and 5). Specifically, the flow straightening member 14 in this embodiment consists of flat plates arranged in a grid pattern, two vertically and two horizontally in a plan view (see Figure 4), and is installed at the air intake port 22 (the connection point between the fan 60 and the chamber 20, which will be described later), to straighten the swirling airflow generated by the fan 60. Therefore, the air diffuser 1 can straighten the conditioned air taken in from the air intake port 22 with the flow straightening member 14 and blow it out evenly from the discharge opening 16.

[0027] The configuration of the chamber 20 in this embodiment is as follows. <1> Height L1 of chamber 20 in front view (see Figure 1(i)): 100 mm <2> In plan view (see Figure 2(ii)), the dimensions of chamber 20 are L2 (vertical) × L3 (horizontal): 210 mm × 210 mm.

[0028] [Support part] The support portion 30 in this embodiment consists of a rod 31, a fixing member 32, a rotation stopper 33, a support member 34, a stay member 35, and an arm support member 36.

[0029] The rod 31 supports the central cone 11 at its lower end via a fixing member 32 and a support member 34 (see Figure 5). In this embodiment, the support member 34 supports the upper end of the central cone 11 by clamping it. The fixing member 32 is a flat, cylindrical member located approximately in the center of the support member 34. The rod 31 is also supported within the chamber 20 by engaging with an arm 52, which will be described later.

[0030] In this embodiment, two stay members 35 are provided at different heights, traversing the chamber 20 (see Figure 5). Furthermore, an arm support member 36 is provided, extending from one (lower) stay member 35 to the other (upper) stay member 35. Specifically, both ends of the arm support member 36 are provided so as to pass through the upper and lower stay members 35, respectively, thereby fixing the arm support member 36 so as not to move in the left-right and up-down directions.

[0031] In this embodiment, since a fixing member 32 is provided, the middle cone 11 maintains a horizontal position relative to the rod 31. Also, since the rod 31 moves up and down by passing through the stay member 35 when the middle cone 11 is raised and lowered, it can always maintain a vertical position. Therefore, the middle cone 11 does not tilt, and the flow path 161 between the middle cone 11 and the outer cone 12 does not become uneven (see Figure 7), and it is possible to prevent the conditioned air CA from being blown out from the discharge opening 16 in a biased direction.

[0032] Furthermore, in this embodiment, two anti-rotation devices 33 are provided on the support member 34 (see Figure 5). Specifically, the anti-rotation devices 33 are positioned around the fixing member 32 and are provided so as to penetrate the lower stay member 35, thereby preventing the central cone 11 from rotating around the rod 31. There are no particular restrictions on the number or shape of such anti-rotation devices 33 or stay members 35.

[0033] [motor] Meanwhile, a motor 40 for moving the central cone 11 up and down is mounted on the outer surface of the chamber 20 such that the motor shaft 40a is in a horizontal position (see Figures 1, 4, and 5). In this embodiment, the motor 40 is mounted on the outer surface and side of the chamber 20, and a motor cover 41 is attached over it. A rotating plate 51 is also provided on the motor shaft 40a, and the rotating plate 51 rotates when power is supplied to the motor 40. In this embodiment, a synchronous motor is used for the motor 40, but it is not limited to this as long as it can rotate the rotating plate 51.

[0034] Furthermore, in this embodiment, the mounting height of the motor cover 41 is set so that the upper end of the motor cover 41 is near the upper end of the chamber 20 (see Figures 1 and 3(i)), but the size and mounting position of the motor 40 and motor cover 41 can be modified as appropriate.

[0035] [Transmission mechanism] The air diffuser 1 connects the central cone 11 and the motor 40 via a support part 30 using a transmission mechanism 50 (see Figure 5). The transmission mechanism 50 in this embodiment consists of a rotating plate 51 and an arm 52.

[0036] The rotating plate 51 is disc-shaped and is installed to rotate around the motor shaft 40a. The rotating plate 51 is housed together with the motor 40 inside the motor cover 41 (see Figure 4).

[0037] One end 52a of the arm 52 is engaged with the arm support member 36 by a pin P1 (see Figures 5 and 8). The other end 52c of the arm 52 is engaged with the rotating plate 51 by a pin P3 fixed to the surface of the rotating plate 51. The middle portion 52b of the arm 52 is engaged with the rod 31 by a pin P2 fixed to the rod 31.

[0038] Here, one end 52a of the arm 52 is rotatably fixed to the arm support member 36, and the middle part 52b of the arm 52 is rotatably fixed to the rod 31. On the other hand, the other end 52c of the arm 52 has an opening 52s that extends in the longitudinal direction of the arm 52, and a pin P3 provided on the rotating plate 51 side is inserted into this opening and engages with it. Therefore, at the other end 52c of the arm 52, as the rotating plate 51 rotates, the pin P3 provided on the rotating plate 51 side moves within the opening 52s along the longitudinal direction of the arm 52. When the rotating plate 51 rotates, the pin P3 moves upward or downward with the rotating plate 51, but the movement of the pin P3 is restricted by the left edge of the opening 52s and it does not rotate any further (the range of movement of the pin P3 is restricted to within the opening 52s, so the rotating plate 51 can only rotate within a range of 180° to the right), and thus the rotation of the motor 40 is restricted. In short, this configuration restricts the motor 40 from rotating 360°.

[0039] With this configuration, the lever principle dictates that the engagement point between one end 52a of the arm 52 and the arm support member 36 is the "fulcrum," the engagement point between the middle portion 52b of the arm 52 and the rod 31 is the "point of application of force," and the engagement point between the other end 52c of the arm 52 and the rotating plate 51 is the "point of effort." As a result, the rotating plate 51 rotates, causing the portion of the rod at the point of application of force to rise or fall. Consequently, the central cone 11, which is supported by the rod 31 via the fixing member 32 and the support member 34, also rises or falls together with the rod 31.

[0040] [fan] The air diffuser 1 is equipped with a fan 60 at the air intake 22 that draws conditioned air CA into the chamber 20, and the fan 60 in this embodiment is an axial flow fan (see Figure 5). Therefore, conditioned air from the space above the ceiling can be drawn into the air diffuser 1 from the air intake 22, and the airflow direction can be adjusted by the multi-layer cone (middle cone 11, outer cone 12) before being supplied to the room. The type and size of the fan 60 can be arbitrarily selected depending on the application and the location where the air diffuser 1 is installed.

[0041] Furthermore, since the conditioned air CA is drawn into the air outlet 1 by the fan 60 and blown into the room R, the installation of a duct connecting the air conditioner (not shown) and the air outlet 1 is unnecessary, enabling ductless air conditioning. In addition, the fan 60 can be operated or stopped by a switch or wireless terminal such as a mobile phone, as described later, so that the conditioned air CA can be blown only where needed according to the needs of the occupants, thereby ensuring the comfort of the occupants while cutting unnecessary power consumption and saving energy.

[0042] In this embodiment, a control device 70 connected to the fan 60 and motor 40 via a control code 71 controls the on / off state and airflow adjustment of the fan 60, as well as the rotation of the motor 40 (see Figure 5). These controls can be performed by sending instructions to the control device 70 from a switch (not shown) installed in the room. Furthermore, by incorporating a wireless communication circuit into the control device 70, instructions can also be sent to the control device 70 wirelessly from a mobile terminal such as a smartphone.

[0043] [Protruding member] Furthermore, the air outlet 1 has a protruding member 15 that extends inward beyond a vertical surface 12c that extends vertically from the inner lower end of the frame 12b of the outer cone 12. In this embodiment, the frame-shaped member 82 forms an opening slightly smaller than the air outlet opening 16 at the location where the air outlet 1 is placed on the frame-shaped member 82, thereby forming the protruding member 15 that extends inward beyond the vertical surface 12c (see Figure 7). In this embodiment, the protruding member 15 is made of painted sheet metal, similar to the frame-shaped member 82. Of course, there are no particular restrictions on the material or shape of the protruding member 15 or the frame-shaped member 82, and they may be made of separate components.

[0044] [Air vent operation] Next, the operation of the air diffuser of the present invention will be described. With this configuration, the air diffuser of the present invention can raise and lower the central cone by driving a motor to move the support part up and down. Specifically, an occupant sends an instruction to the control device 70 from a switch or mobile terminal, etc., to operate the fan 60 and motor 40.

[0045] Here, as mentioned above, the air outlet 1 is installed with the outlet opening 16 facing the interior R. To make the airflow from the air diffuser 1 horizontal, the occupant operates a switch or the like to drive the motor 40, rotating the rotating plate 51 clockwise from the state shown in Figure 6. This causes the point of application (the engagement point between the middle part 52b of the arm 52 and the rod 31) to descend due to the aforementioned "lever principle," and the middle cone 11 descends together with the rod 31. The air diffuser 1 shown in Figure 5 is in the state where the middle cone 11 has descended due to the motor 40's drive (horizontal discharge). In this case, for example, conditioned air CA from the ceiling space is drawn into the chamber 20 by the fan 60, passes through the flow path between the middle cone 11 and the pan member 13, and the flow path 161 between the middle cone 11 and the outer cone 12, and is blown out horizontally from the discharge opening 16.

[0046] On the other hand, if the air outlet 1 is to be used for vertical discharge from the state shown in Figure 5, the occupant operates a switch or the like to drive the motor 40 (rotate it in the reverse direction) and rotate the rotating plate 51 counterclockwise. In this embodiment, the rotating plate 51 is rotated from a state where the engagement point between the other end 52c of the arm 52 and the rotating plate 51 is located approximately at the lower end of the rotating plate 51 (see Figure 5) to a state where it is located approximately at the upper end (see Figure 6).

[0047] In this case, the middle cone 11 rises together with the rod 31 due to the lever principle. Specifically, the point of application (the engagement point between the middle part 52b of the arm 52 and the rod 31) rises, causing the middle cone 11 to rise together with the rod 31. The air outlet 1 shown in Figure 6 is in the state where the middle cone 11 has risen due to the drive of the motor 40 (vertical discharge). In this case, the conditioned air CA passes through the flow path between the middle cone 11 and the pan member 13, and the flow path 161 between the middle cone 11 and the outer cone 12, and is blown out vertically from the discharge opening 16.

[0048] Therefore, as shown in Figure 6, the motor 40 drives the central cone 11 into a raised state (vertical discharge), and the conditioned air CA is blown out vertically from the discharge opening 16.

[0049] Furthermore, since the position where the rotation of the rotating plate 51 stops can be arbitrarily adjusted by the control of the motor 40, the height at which the central cone 11 is located in the air outlet 1 can be adjusted steplessly, and the direction of air conditioning air CA discharge can also be finely adjusted arbitrarily according to the preference of the occupants. In addition, a detection means (not shown) is provided to detect the position where the central cone 11 rises and performs vertical discharge, and the position where the central cone 11 descends and performs horizontal discharge, and by controlling the operation of the motor 40 with this detection means, the raising and lowering of the central cone 11 can be performed accurately.

[0050] For example, limit switches can be installed above and below the rotating plate 51 as detection means, and protrusions can be provided on the rotating plate 51. When the rotating plate 51 rotates, the protrusions press against the limit switches, stopping the rotation of the motor 40. The upper and lower limit switches then stop the motor 40 when the pin P3 is on the lower side of the rotating plate 51 (the horizontal blowing state shown in Figure 5) and when the pin P3 is on the upper side of the rotating plate 51 (the vertical blowing state shown in Figure 6). In this way, by stopping the rotation of the motor 40 with limit switches, the central cone 11 can be precisely stopped at the positions for horizontal and vertical blowing.

[0051] Here, the configuration of the transmission mechanism 50 in this embodiment is as follows (see Figure 8). <3> The distance L4 from the engagement point between one end 52a of arm 52 and the arm support member 36 to the engagement point between the middle portion 52b of arm 52 and the rod 31 is 52 mm. <4> The distance L5 from the engagement point between the intermediate portion 52b of arm 52 and rod 31 to the engagement point between the other end 52c of arm 52 and rotating plate 51 in the horizontal or vertical discharge state is 135 mm. To explain the "lever principle" in this configuration, the distance between the fulcrum and the point of force application is 187 mm (as above). <3> , <4> (See reference) The distance between the fulcrum and the point of application: 52 mm (see above) <3> Because it is longer than (see reference), it can convert the small force that rotates the rotating plate 51 into a larger force that moves the rod 31 up and down in a straight line. Therefore, even with a small motor, it is possible to raise and lower the central cone 11, thus reducing the power consumption of the motor.

[0052] Furthermore, under the condition that the vertical movement distance of the point of force due to the rotation of the rotating plate 51 is 36 mm, the vertical movement distance of the point of application becomes "10 mm". Therefore, the air diffuser 1 of this embodiment can sufficiently secure a vertical movement distance of 10 mm for the central cone 11 necessary for changing the airflow direction.

[0053] Thus, in this embodiment, when the motor 40 is driven, the transmission mechanism 50 causes the central cone 11 to be raised and lowered in conjunction with the vertical movement of the support part 30 (rod 31). Therefore, occupants can easily switch the direction of the conditioned air CA blown out from the outlet opening 16 of the air diffuser 1 (see Figures 5 and 6), and can generate a downward airflow directed towards the occupants to feel the airflow, or generate a horizontal airflow when not needed to cool the entire room.

[0054] In addition, since the motor 40 of the air diffuser 1 is installed on the outside of the chamber 20, the number of obstacles (such as the support part 30 and the transmission mechanism 50) that obstruct the flow path inside the chamber 20 can be reduced to the bare minimum, thereby suppressing the increase in pressure loss and noise generation at the air diffuser 1 caused by these obstacles. Furthermore, these obstacles do not affect the shape of the discharged airflow, and comfortable air-conditioned air CA as desired by the occupants can be supplied.

[0055] With respect to this obstacle, the transmission mechanism 50 of this embodiment has a configuration that includes a rotating plate 51 and an arm 52, and with a simple configuration of a rotating plate 51, an arm 52, and a rod 31, the rotational motion of the motor 40 can be converted into vertical linear motion. Therefore, the number of obstacles obstructing the flow path in the chamber can be reduced to the absolute minimum, and the increase in pressure loss at the air outlet 1 and the generation of noise caused by the obstacles can be suppressed.

[0056] In this embodiment, the motor 40 is not built into the chamber 20, but is provided on the outer surface and side of the chamber 20, therefore, <1> The height of the chamber 20 itself can be kept to the height shown. Therefore, installation is possible even if the ceiling space where the air diffuser 1 is installed is shallow. Furthermore, because there is more space above the fan 60, the conditioned air CA around the air diffuser 1 in the ceiling space can be efficiently drawn into the fan 60, improving the efficiency of the air conditioning.

[0057] Furthermore, since the motor 40 is located on the outer surface of the chamber 20, workers can easily perform maintenance tasks such as inspecting and replacing the motor 40.

[0058] Furthermore, since the air outlet 1 of this embodiment is provided with a protruding member 15 (see Figure 7), when air is blown vertically (see Figure 6), the protruding member 15 suppresses the diffusion of the blown airflow, enabling the stable generation of a more downward-facing vertical airflow. Therefore, it is possible to provide a sense of airflow to occupants below the blown opening 16, thereby realizing more comfortable personal air conditioning.

[0059] The air outlet 1 described above is merely an example of an air outlet according to the present invention, and the configuration of the present invention is not limited to the examples given, without departing from the spirit of the present invention. For example, the above <1> ~ <4> The size and shape of the components that make up the air vent, including the dimensions exemplified above, can be modified as needed.

[0060] Furthermore, although the air vent 1 according to this embodiment is a multi-layer cone-type air vent composed of an inner cone 11 and an outer cone 12, it is not limited to two layers of inner and outer cones, and the shape of the cone is not limited to the example shown. [Industrial applicability]

[0061] This invention allows for arbitrary switching of the airflow direction of conditioned air according to the needs of occupants, while also preventing an increase in pressure loss and reducing noise. Furthermore, it is an air diffuser that is easy to maintain, making it widely usable in various locations and facilities, and thus industrially useful. [Explanation of Symbols]

[0062] 1 Air outlet 11 Medium Cone 12 Outer cone 12a Upper end of the outer cone 12b Outer cone frame 12c vertical plane 13 Bread ingredients 14. Rectifying member 15. Protruding member 16 Outlet opening 161 Flow path between the inner cone and the outer cone 20 chambers 21 Aperture 22 Air intake 30 Support part 31 Rods 32 Fixing member 33 Anti-rotation device 34 Support Member 35 Stay member 36 Arm support member 40 motors 40a motor shaft 41 Motor cover 50 Transmission mechanism 51 Rotating Plate 51a Center of the rotating plate 52 Arms 52a One end of the arm 52b Middle section of the arm 52c Other end of arm 52s opening 60 fans 61 Fan intake 70 Control device 71 Control Code 80 Ceiling board 81 T-bar 82 Frame-shaped member P1, P2, P3 pins CA Air Conditioning R Indoor L1, L2, L3, L4, L5 Length

Claims

1. It is a multi-layer cone-type air diffuser having at least an inner cone and an outer cone, which blows conditioned air into the room from the outlet opening. A chamber with an open bottom is connected to the upper end of the outer cone. An air intake port for taking in conditioned air is provided on the upper surface of the chamber. A support part is provided within the chamber to support and raise / lower the central cone. A motor for moving the central cone up and down is provided on the outer surface of the chamber. An air outlet connecting the aforementioned central cone and the aforementioned motor by a transmission mechanism.

2. The air outlet according to claim 1, wherein the motor is provided on the outer surface and side of the chamber.

3. The air intake port according to claim 1, wherein a fan for drawing conditioned air into the chamber is provided at the air intake port.

4. The transmission mechanism has a rotating plate and an arm, The support portion has a rod that supports the central cone via a fixing member and a support member. One end of the arm is engaged with the support portion, The middle portion of the arm is engaged with the rod, The air outlet according to any one of claims 1 to 3, wherein the other end of the arm is engaged with the end of the rotating plate.

5. The air outlet according to claim 1, further comprising a protruding member that extends vertically from the inner lower end of the frame of the outer cone and protrudes inward beyond a vertical surface.

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