Air conditioning blower outlet device

Abstract

To provide an air outlet device for air conditioning which has a simple structure and can keep a constant air quantity of air blowed from a personal nozzle even if a supply amount of supplied conditioned air changes.SOLUTION: An air outlet device 100 for air conditioning includes: a chamber 2 having a duct connection port 1; a pan member 9 which is disposed close to a lower surface 2a of the chamber 2; an ambient air outlet part 3 provided along a peripheral edge part 9a of the pan member 9; and a personal air outlet part 4 disposed in an area enclosed by the peripheral edge part 9a. In the chamber 2, a personal side passage 5 which guides conditioned air introduced thereinto to the personal air outlet part 4, ambient side passages 6 which guide the conditioned air to the ambient air outlet part 3, a differential pressure damper unit 10 which partitions the personal side passage 5 from the ambient side passages 6 and keeps an internal pressure in the chamber 2 at a predetermined value; and a switching mechanism 20 which distributes the conditioned air to the personal air outlet part 4 side and the ambient air outlet part 3 side at an upstream side of the personal air outlet part 4 are provided.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an air conditioning outlet device that is installed in the ceiling of a building to blow conditioned air supplied from an air conditioner into the building, and is capable of ambient air conditioning and personal air conditioning. [Background technology]

[0002] While various structures and functions have been proposed for air conditioning outlet devices that are installed in the ceiling of a building to blow conditioned air supplied from an air conditioner into the building and can perform ambient and personal air conditioning, one example related to the present invention is the outlet device described in Patent Document 1.

[0003] The air outlet device described in Patent Document 1 is equipped with an airflow guide section at the opening of the air outlet body that guides the airflow of conditioned air in multiple directions, and also includes a guide nozzle for localized discharge and a blower fan, allowing the user to select between a state in which conditioned air is locally discharged from the guide nozzle by the operation of the blower fan, and a state in which conditioned air is widely diffused mainly by the airflow guide section. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2015-215102 [Overview of the project] [Problems that the invention aims to solve]

[0005] The air outlet device described in Patent Document 1 has a structure in which a fan is individually provided for each personal nozzle to control the amount of air blown out from the personal nozzle, and the amount of air blown out from each personal nozzle can be individually controlled. In addition, it is equipped with a shielding part that switches the airflow in the flow path, and the flow path is switched depending on whether the personal nozzle is used or not, so the structure is complex and the manufacturing process is complicated.

[0006] Therefore, the problem that the present invention aims to solve is to provide an air conditioning outlet device that can perform ambient air conditioning and personal air conditioning, has a simple structure, and can maintain a constant airflow rate from a personal nozzle even when the amount of conditioned air supplied from the air conditioner changes. [Means for solving the problem]

[0007] The air conditioning outlet device according to the present invention is an air conditioning outlet device that is placed in the ceiling of a building to blow conditioned air supplied from an air conditioner into the building, The system comprises a chamber having a duct connection port for introducing conditioned air supplied from an air conditioner via a duct, a pan member positioned near the bottom of the chamber, an ambient discharge section provided along the periphery of the pan member, and a personal discharge section positioned within the area enclosed by the periphery of the bottom of the chamber, The chamber is characterized by being provided with a personal side flow path for guiding the conditioned air introduced into the chamber to the personal outlet, an ambient side flow path for guiding the conditioned air to the ambient outlet, a differential pressure damper unit that separates the personal side flow path and the ambient side flow path and operates when the pressure inside the chamber reaches a predetermined value to maintain the pressure inside the chamber at the predetermined value, and a switching mechanism with a changeable distribution ratio that distributes the conditioned air to the personal outlet side and the ambient outlet side upstream of the personal outlet.

[0008] With this configuration, ambient air conditioning can be performed while also providing personal air conditioning, and the airflow rate of conditioned air flowing to the personal air outlet can be increased or decreased by the switching mechanism. Furthermore, even if the airflow rate of conditioned air supplied from the air conditioner to the air conditioning outlet device according to the present invention changes, a predetermined airflow rate can be maintained from the personal air outlet, thereby improving the comfort of personal air conditioning. Specifically, when the pressure inside the chamber reaches a predetermined value, the airflow rate from the personal air outlet can be controlled within the range of maximum to minimum, and when the pressure inside the chamber is below the predetermined value, the airflow rate from the personal air outlet is maintained.

[0009] In the air conditioning outlet device, the differential pressure damper unit may include a casing disposed within the chamber with its upper opening facing the duct connection port and its lower opening connected to the upper surface of the pan member; vanes capable of opening and closing a vent opening provided in the peripheral wall of the casing; and a pressure adjusting weight that keeps the vent opening closed by the vanes until the pressure inside the chamber reaches a predetermined value, and then opens the vent opening to maintain the pressure inside the chamber at the predetermined value.

[0010] With this configuration, the airflow rate of conditioned air blown out from the personal outlet can be set to a predetermined value by adjusting the pressure adjustment weight, and the airflow rate of conditioned air blown out from the personal outlet can be kept constant even if the airflow rate of conditioned air supplied from the air conditioner to the conditioned outlet device changes.

[0011] In the aforementioned air conditioning outlet device, the casing of the differential pressure damper unit has a rectangular cylindrical shape with a horizontal cross-sectional area decreasing toward the personal air outlet, and ventilation openings are provided in two opposing peripheral walls of the casing, and the blades are attached to blade arms that are pivotally supported in a hanging manner at positions closer to the other peripheral wall of the casing, so as to be able to swing toward and toward the ventilation openings. Weight arms are pivotally supported so that they rotate in conjunction with the swinging of the aforementioned blade arms and their upper ends protrude from the upper surface of the casing, and these weight arms are erected at positions closer to the other peripheral wall portions of the casing, and a pair of these weight arms are connected by a weight bar. The pressure-regulating weight can be provided on the flat portion of the blade and on the weight bar.

[0012] With this configuration, the casing has a rectangular cylindrical shape with a decreasing horizontal cross-sectional area towards the personal discharge section, which allows for a suitable range of motion for the differential pressure damper unit's blades from the moment they begin to open until they contact the inner surface of the chamber. This allows the differential pressure damper unit to be housed within a chamber with limited space.

[0013] Furthermore, by providing pressure-adjusting weights on the flat surface of the blades and on the weight bar, the operating pressure of the differential pressure damper unit can be properly adjusted. Specifically, by providing a link mechanism between the blades and the weight arm of the differential pressure damper unit, and making the distance from the pivot point of the weight arm to the pressure-adjusting weight longer than the distance from the pivot point to the link mechanism, it is possible to ensure a large oscillation of the weight at the top of the weight arm in response to the oscillation of the blades (allowing the top of the weight arm to oscillate significantly in response to small oscillations of the blades). As a result, even a small and lightweight weight can close the blades with great force, and it is possible to prevent the blades from opening at a pressure below the operating pressure of the differential pressure damper unit.

[0014] In the aforementioned air conditioning outlet device, the air receiving portion of the blades of the differential pressure damper unit can be positioned in the area where the conditioned airflow, which has been distributed to the ambient flow path by the switching mechanism, strikes.

[0015] With this configuration, the conditioned air distributed to the ambient side directly hits the air-receiving portion of the differential pressure damper unit's blades, thereby biasing the differential pressure damper unit's movement in the opening direction as the pressure rises in the chamber, and thus improving the reliability of the differential pressure damper unit's opening operation.

[0016] In the air-conditioning outlet device, a motor for operating the switching mechanism, a receiving unit for receiving a wireless signal for starting the motor, and a control means for transmitting the signal received by the receiving unit to the motor can be provided.

[0017] With such a configuration, the blowing air volume of the air-conditioned air from the personal blowing section can be wirelessly controlled from a remote location, improving convenience. Note that the opening degree control of the switching mechanism by the motor can be two-way control of fully open or fully closed, step control for setting the air volume in each stage, or stepless control for arbitrarily setting the air volume.

Effect of the Invention

[0018] According to the present invention, an air-conditioning outlet device that can perform ambient air conditioning and personal air conditioning, has a simple structure, and can keep the blowing air volume from the personal nozzle constant even when the supply amount of the air-conditioned air supplied from the air conditioner changes can be provided.

Brief Description of the Drawings

[0019] [Figure 1] It is a partially omitted plan view showing an air-conditioning outlet device according to an embodiment of the present invention. [Figure 2] It is a partially omitted front view of the air-conditioning outlet device shown in FIG. 1. [Figure 3] It is a partially omitted bottom view of the air-conditioning outlet device shown in FIG. 1. [Figure 4] It is a partially omitted right side view of the air-conditioning outlet device shown in FIG. 1. [Figure 5] It is a partially omitted vertical cross-sectional view taken along line A-A in FIG. 1. [Figure 6] It is a partially omitted vertical cross-sectional view taken along line B-B in FIG. 1. [Figure 7] It is a partially omitted vertical cross-sectional view taken along line C-C in FIG. 1. [Figure 8] It is a partially omitted horizontal cross-sectional view taken along line D-D in FIG. 2 <000011os>This is a partially omitted vertical cross-sectional view of the vanes in Figure 7 when they are in the fully closed position. [Figure 10] Figure 7 is a partially omitted vertical cross-sectional view of the blade in an intermediate state. [Figure 11] Figure 7 is a partially omitted vertical cross-sectional view showing the blades in the fully extended position. [Modes for carrying out the invention]

[0020] Hereinafter, an air conditioning outlet device 100, which is an embodiment of the present invention, will be described based on Figures 1 to 11.

[0021] As shown in Figures 1 to 9, the air conditioning outlet device 100 is positioned in the ceiling of a building to blow conditioned air supplied from an air conditioner (not shown) into the building. The air conditioning outlet device 100 includes a chamber 2 having a duct connection port 1 for introducing conditioned air supplied from the air conditioner via a duct, a pan member 9 positioned near the lower surface 2a of the chamber 2, an ambient outlet 3 provided along the peripheral edge 9a of the pan member 9, and a plurality of personal outlets 4 arranged within the area surrounded by the peripheral edge 9a of the pan member 9. As shown in Figures 3 and 5, the ambient outlet 3 is located between the peripheral edge 2b of the lower surface 2a of the chamber 2 and the peripheral edge 9a of the pan member 9.

[0022] Chamber 2 is provided with a personal-side flow path 5 that guides the conditioned air introduced into Chamber 2 to the personal outlet 4, an ambient-side flow path 6 that guides the conditioned air to the ambient outlet 3, a differential pressure damper unit 10 that separates the personal-side flow path 5 and the ambient-side flow path 6 and operates when the pressure inside Chamber 2 reaches a predetermined value to maintain the pressure inside Chamber 2 at that predetermined value, and a switching mechanism 20 with a changeable distribution ratio that distributes the conditioned air to the personal outlet 4 side and the ambient outlet 3 side upstream of the personal outlet 4.

[0023] As shown in Figures 5 to 7, a packing 8 is provided between the upper edge 11g of the casing 11 of the differential pressure damper unit 10 and the inner circumferential surface of the chamber 2, thereby airtightly separating the personal side flow path 5 and the ambient side flow path 6. The upper opening 11a of the casing 11 faces the duct connection port 1, and the lower opening 11b of the casing 11 is connected to the upper surface 9b of the pan member 9 (see Figure 6). All of the conditioned air supplied into the chamber 2 flows into the casing 11 and is then distributed to the personal side flow path 5 and the ambient side flow path 6.

[0024] As shown in Figures 3, 5, 7, and 8, the switching mechanism 20 comprises a cylindrical ventilation member 28 arranged upright inside the casing 11, a partition wall 29 that divides the ventilation member 28 vertically, and a shaft 21 rotatably supported at the center of the partition wall 29. Multiple fan-shaped openings 29a are provided in the partition wall 29 at symmetrical positions on either side of the shaft 21, and shutters 22 that open and close these openings 29a are fixed to the shaft 21. The upper surface of the shutters 22 has a semi-conical shape that widens in diameter from the shaft 21 toward the inner circumferential surface of the ventilation member 28.

[0025] In the ventilation member 28, multiple openings 26 are provided in the region above the partition wall 29, arranged symmetrically with respect to the shaft 21. The openings 26 of the ventilation member 28 and the openings 29a of the partition wall 29 are positioned so that their phases differ by 90 degrees around the shaft 21, so that the openings 26 of the ventilation member 28 are located outside the portion of the partition wall 29 where there are no openings 29a. Each of the multiple openings 26 is provided in a position opposite to the ventilation openings 12 of the casing 11 and the air receiving portion of the blades 13 of the differential pressure damper unit 10, which will be described later.

[0026] The shafts 21, 21 of the multiple switching mechanisms 20 are each rotatable independently. When the shafts 21 are rotated forward or backward, the shutters 22 rotate together, causing the opening 26 of the ventilation member 28 and the opening 29a of the partition wall 29 to open and close in a coordinated manner. Specifically, when the shafts 21 are rotated forward to set the shutters 22 to fully open the opening 26 of the ventilation member 28, the opening 29a of the partition wall 29 becomes fully closed. Furthermore, when the shafts 21 are rotated backward from the fully closed state, the opening 26 of the ventilation member 28 narrows continuously from the fully open state to the fully closed state, and consequently, the opening 29a of the partition wall 29 expands continuously from the fully closed state to the fully open state.

[0027] A discharge nozzle 24 is tiltably attached to the lower end of a shaft 21 that protrudes downward from the bulkhead 29 via a universal joint 25 and a support shaft 30. The discharge nozzle 24 is formed of a bottomless bowl-shaped main body 24a and a short cylindrical rim portion 24b that is connected downward from the main body 24a, and both ends of the support shaft 30 are rotatably fixed to the inner circumferential surface of the main body 24a.

[0028] The differential pressure damper unit 10 comprises a casing 11 positioned inside the chamber 2 with its upper opening 11a facing the duct connection port 1 and its lower opening 11b connected to the upper surface 9b of the pan member 9; a vane 13 capable of opening and closing a vent 12 provided in the casing 11; and a pressure adjustment weight 14 (see Figure 6) that keeps the vane 13 closed until the pressure inside the chamber 2 reaches a predetermined value. A pressure adjustment weight 15 is also positioned on the outer surface of the flat portion of the vane 13. The functions of the pressure adjustment weights 14 and 15 will be described later.

[0029] The casing 11 of the differential pressure damper unit 10 has a rectangular cylindrical shape in which the horizontal cross-sectional area continuously decreases toward the personal outlet 4. Ventilation openings 12 are provided in two opposing peripheral wall sections 11c and 11d of the casing 11, and blades 13 are attached to blade arms 16 that are pivotally supported in a hanging manner near the other two peripheral wall sections 11e and 11f of the casing 11, allowing them to swing toward and away from the ventilation openings 12. Flat plate-shaped support members 27 are attached in a hanging manner to the four corners of the upper region inside the casing 11, and the upper ends of the blade arms 16 are pivotally attached to the support members 27 via a pivot point 16a. The air receiving portion of the blades 13 is positioned opposite the opening 26 of the ventilation member 28.

[0030] As shown in Figure 9, a weight arm 17 is tiltably mounted on a support member 27 attached to another peripheral wall portion 11f within the casing 11 via a pivot point 17a. Although not shown, a weight arm 17 is also tiltably mounted on a support member 27 attached to another peripheral wall portion 11e within the casing 11 via a pivot point 17a.

[0031] The weight arm 17 is connected to the blade arm 16 via a link 19 and is pivotally supported so as to rotate in the opposing directions of the peripheral wall portions 11c and 11d in conjunction with the swing of the blade arm 16. The upper end of the weight arm 17 is pivotally supported at a pivot point 17a so as to protrude from the upper opening 11a of the casing 11. The weight arms 17, 17 facing each other in the opposing directions of the two peripheral wall portions 11e and 11f are each connected by a weight bar 18, and a pressure adjustment weight 14 is attached to the longitudinal center of each weight bar 18. The weight arms 17, 17 facing each other in the opposing directions of the two peripheral wall portions 11c and 11d are connected by an L-shaped interlocking member 7.

[0032] Next, the functions, effects, etc. of the air conditioning outlet device 100 will be explained based on Figures 9 to 11. Below, the maximum airflow volume from the personal outlet 4 is 30 m³. 3Let's explain the case where the setting is / h (where the vanes 13 of the differential pressure damper unit 10 are set to open when the pressure in chamber 2 reaches 30 Pa).

[0033] As shown in Figures 8 and 9, when the shutters 22, 22 of the differential pressure damper unit 10 are fully open and the pressure inside the chamber 2 of the air conditioning outlet device 100 is less than 30 Pa, the vent 12 of the casing 11 of the differential pressure damper unit 10 is closed by the blades 13. This is because the force acting on the pressure adjustment weight 14 (see Figure 6) provided on the weight bar 18, which causes the blades 13 to come into contact with the vent 12, is greater than the force acting on the pressure adjustment weight 15, which tries to return the blades 13 to a vertical position.

[0034] In this state, the amount of conditioned air flowing to the personal outlet 4 can be increased or decreased by changing the opening degree of the shutter 22 using the switching mechanism 20. When the opening degree of the shutter 22 is narrowed to reduce the amount of conditioned air flowing to the personal outlet 4, the pressure inside the casing 11 rises to 30 Pa. At this point, the blades 13 of the differential pressure damper unit 10 open the vent 12, allowing conditioned air to flow to the ambient outlet 3, and the pressure inside the chamber 2 is maintained at 30 Pa.

[0035] Next, as shown in Figure 10, when the airflow rate of conditioned air supplied from the air conditioner increases and the pressure in the chamber 2 of the air conditioning outlet device 100 reaches 30 Pa, and exceeds the closing force of the blades 13 on the vent 12 due to gravity acting on the pressure adjustment weight 14 (see Figure 6) provided on the weight bar 18, the blades 13 tilt away from the vent 12, the vent 12 becomes open, and the airflow rate from the personal outlet 4 becomes 30 m³ 3 The pressure is maintained at / h, and any excess flows to the ambient outlet 3. In this state, the opening of the blades 13 is controlled by the balance between the pressure in the chamber 2 and the gravity acting on the pressure regulating weights 14 (see Figure 6) and 15.

[0036] Next, as shown in Figure 11, when the airflow rate of conditioned air supplied from the air conditioner increases further, the multiple blades 13 move as far away from the vents 12 as possible, and all of the vents 12 become almost fully open. In this state, the opening of the blades 13 is controlled by the balance between the pressure in the chamber 2 and the gravity acting on the pressure regulating weight 15.

[0037] Thus, the air conditioning outlet device 100 can perform both ambient and personal air conditioning simultaneously. By changing the opening degree of the shutter 22 using the switching mechanism 20, the airflow rate of conditioned air flowing to each personal outlet 4 can be changed from 0 to 30 m³. 3 The airflow rate can be increased or decreased within the range of / h. Furthermore, even if the airflow rate of the conditioned air supplied from the air conditioner to the air conditioning outlet device 100 changes, a predetermined airflow rate can be maintained from the personal outlet 4, thereby improving the comfort of personal air conditioning. Specifically, when the pressure inside the chamber 2 reaches 30 Pa, the airflow rate from the personal outlet 4 is 0-30 m³. 3 It can be controlled within the range of / h, and if the pressure in chamber 2 is less than 30 Pa, it will be the airflow volume from the personal outlet 4.

[0038] In the above example, the airflow rate of the conditioned air supplied from the air conditioner to the air conditioning outlet device 100 is within a predetermined range (60 m 3 / h (with both personal air outlets 4,4 open, airflow rate 30m³) 3 (Airflow that can secure / h) ~150m 3 The airflow from the personal air outlet 4 can be kept constant at / h (the airflow at which the blades 13 of the differential pressure damper unit 10 are fully open when the two personal air outlets 4, 4 are closed).

[0039] In the air conditioning outlet device 100, the differential pressure damper unit 10 includes a casing 11 positioned inside the chamber 2 with its upper opening 11a facing the duct connection port 1 and its lower opening 11b surrounding the upstream side of the personal outlet 4; vanes 13 capable of opening and closing vents 12 provided in the peripheral wall portions 11c and 11d forming the casing 11; and pressure adjusting weights 14 and 15 that keep the vanes 13 closed to the vents 12 until the pressure inside the chamber 2 reaches a predetermined value (for example, 30 Pa), and then open the vents 12 to maintain the pressure inside the chamber 2 at the predetermined value.

[0040] Therefore, by adjusting the pressure adjustment weights 14 and 15, the airflow rate of the conditioned air blown out from the personal outlet 4 can be set to a predetermined value, and even if the airflow rate of the conditioned air supplied from the air conditioner to the conditioned outlet device 100 changes, the airflow rate of the conditioned air blown out from the personal outlet 4 can be kept constant.

[0041] Furthermore, because the casing 11 has a rectangular cylindrical shape in which the horizontal cross-sectional area continuously decreases toward the personal outlets 4,4, it is possible to adequately secure the range of motion of the vanes 13 of the differential pressure damper unit 10 from when the vanes 13 begin to open until they contact the inner surface of the chamber 2, and the differential pressure damper unit 10 can be housed in the chamber 2, which has limited space.

[0042] Furthermore, by providing a pressure adjustment weight 15 on the flat surface of the blade 13 and a pressure adjustment weight 14 on the weight bar 18, the operating pressure of the differential pressure damper unit 10 can be properly adjusted. Specifically, by providing a link 19 between the blade arm 16 and the weight arm 17 of the blade 13 of the differential pressure damper unit 10, and making the distance from the pivot point 17a of the weight arm 17 to the pressure adjustment weight 14 longer than the distance from the pivot point 17a to the link 19, it is possible to ensure a large oscillation of the pressure adjustment weight 14 at the top of the weight arm 17 in response to the oscillation of the blade 13 (allowing the top of the weight arm 17 to oscillate significantly in response to a small oscillation of the blade 13). As a result, even a small and lightweight weight can close the blade 13 with a large force, and it is possible to prevent the blade 13 from opening at a pressure below the operating pressure of the differential pressure damper unit 10.

[0043] As shown in Figures 10 and 11, when the chamber 2 reaches the operating pressure and the blades 13 begin to open, and when they open beyond the position where the plane direction of the blades 13 is vertical, the pressure adjustment weights 15 on the plane of the blades 13 maintain a load in the direction of closing the open blades 13, thereby keeping the amount of air blown out from the personal outlets 4,4 constant. For example, if the operating pressure is 30 Pa, the blades 13 will not open when the pressure in the chamber 2 is 25 Pa, and as the amount of conditioned air increases, the blades 13 will open to maintain the pressure in the chamber 2 at 30 Pa, thereby keeping the amount of air blown out from the personal outlets 4,4 constant.

[0044] Furthermore, in the air conditioning outlet device 100, the conditioned air distributed to the ambient flow path 6 directly hits the air receiving portion of the vane 13 of the differential pressure damper unit 10, thereby biasing the differential pressure damper unit 10 to move in the opening direction as the pressure rises in the chamber 2, thus improving the reliability of the opening operation of the differential pressure damper unit 10.

[0045] Further, the weight arms 17, 17 facing each other in the direction facing the partition walls 11c, 11d of the differential pressure damper unit 10 are connected by a linkage member 7, and the blades 13, 13 on both sides are interlocked to always have the same opening degree, thereby preventing unevenness in the air volume blown out from the ambient side flow path 6. Further, the air conditioning outlet device 100 can maintain a constant air volume blown out from the personal outlets 4, 4 without consuming power.

[0046] A link 19 is provided between the blade arm 16 of the blade 13 and the weight arm 17, and the positions of the weight arm 17 and the pressure adjusting weight 14 (see FIG. 6) above the weight arm 17 are shifted toward the central side of the vertical cross section of the differential pressure damper unit 10 (the direction in which the weight arms 17, 17 on both sides approach each other), so that the weight arms 17, 17 can operate without contacting the inner surface of the casing 11 and can be accommodated in the chamber 2 with limited space.

[0047] When the amount of conditioned air supplied to the air conditioning outlet device 100 decreases, the opening degree of the blade 13 of the differential pressure damper unit 10 decreases, so the flow path of the air passing through the ventilation port 12 becomes narrower. However, thereby, even when the amount of conditioned air decreases, the flow velocity of the conditioned air passing through the ventilation port 12 from the differential pressure damper unit 10 and heading toward the ambient blowing portion 3 increases, and the diffusibility of the air flow blown out from the ambient blowing portion 3 can be maintained.

[0048] As described above, the case where the air volume blown out from the personal blowing portion 4 is up to 30 m 3 / h (when the blades 13 of the differential pressure damper unit 10 are set to open when the pressure in the chamber 2 reaches 30 Pa) has been described. However, when it is desired to increase the maximum air volume from the personal blowing portion 4 (for example, when it is desired to be 40 m 3 / h), it can be dealt with by setting the pressure in the chamber 2 to 53 Pa. However, since there is a concern about an increase in noise from the air conditioning outlet device 100 when the pressure in the chamber 2 exceeds 50 Pa, it is desirable to set it within the range of 15 Pa to 50 Pa.

[0049] The air conditioning outlet device 100 includes a motor 23 that operates the switching mechanism 20, a receiving unit (not shown) that receives a wireless signal to start the motor 23, and a control means that transmits the signal received by the receiving unit to the motor 23. Therefore, the amount of conditioned air blown out from the personal outlet 4 can be wirelessly controlled from a distance, offering excellent convenience. The opening degree control of the shutter 22 of the switching mechanism 20 by the motor 23 can be either fully open or fully closed, or in stages (for example, 30m). 3 / h,20m 3 / h,10m 3 / h,0m 3 It can perform four-stage control (of / h) or stepless control.

[0050] The air conditioning outlet device 100 described with reference to Figures 1 to 11 is merely an example of an air conditioning outlet device according to the present invention, and the air conditioning outlet device according to the present invention is not limited to the air conditioning outlet device 100 described above. [Industrial applicability]

[0051] The air conditioning outlet device according to the present invention can be widely used as a component of air conditioning systems in buildings such as office buildings. [Explanation of symbols]

[0052] 1. Duct connection port 2 Chambers 2a Bottom side 2b,9a Peripheral area 3 Ambient air outlet 4. Personal air outlet 5. Personal side channel 6 Ambient side flow path 7 Interlocking Member 8. Packing 9 Bread ingredients 9b Top side 10 Differential pressure damper unit 11 Casing 11a Upper opening 11b Lower opening 11c,11d,11e,11f Surrounding wall part 11g upper edge 12 Ventilation holes 13 feathers 14,15 Pressure adjustment weights 16-wing arm 17 Weight Arm 16a,17a fulcrum 18 Weight bars 19 links 20 Switching mechanism 21 Axis 22 shutters 23 Motor 24 Discharge nozzles 24a Main body 24b Mouth rim 25 Universal joint 26,29a opening 27 Support Member 28 Ventilation components 29 Bulkhead 30 Spindle 100 Air conditioning outlet device

Claims

1. An air conditioning outlet device, which is installed in the ceiling of a building to blow conditioned air supplied from an air conditioner into the building, A chamber having a duct connection port for introducing conditioned air supplied from an air conditioner via a duct, a pan member positioned near the bottom of the chamber, an ambient discharge section provided along the periphery of the pan member, and a personal discharge section positioned within the area enclosed by the periphery of the bottom of the chamber, Equipped with, The chamber is provided with a differential pressure damper unit and a switching mechanism that can change the distribution ratio for distributing the conditioned air between the personal outlet and the ambient outlet upstream of the personal outlet. A packing is provided between the upper edge of the differential pressure damper unit and the inner circumferential surface of the chamber, so that all of the conditioned air flowing into the chamber flows into the differential pressure damper unit. The differential pressure damper unit comprises a personal side flow path that guides the conditioned air introduced into the chamber to the personal outlet, an ambient side flow path that guides the conditioned air to the ambient outlet, and a partition between the personal side flow path and the ambient side flow path. The damper unit operates when the pressure in the space above the packing within the chamber reaches a predetermined value and maintains the pressure at that predetermined value. The differential pressure damper unit comprises a casing disposed within the chamber with its upper opening facing the duct connection port and its lower opening connected to the upper surface of the pan member; vanes capable of opening and closing vents provided in the peripheral wall forming the casing; and a pressure adjustment weight that keeps the vents closed by the vanes until the pressure reaches a predetermined value, and then opens the vents to maintain the pressure at the predetermined value. The ambient side passage can be formed between the peripheral wall and the inner surface of the chamber, and when the vanes are closed and in contact with the peripheral wall, the ambient side passage is closed. An air conditioning outlet device characterized in that, as the pressure increases and the blades move away from the peripheral wall, the conditioned air in the chamber can flow out from the ambient outlet via the ambient side flow path.

2. The casing of the differential pressure damper unit has a rectangular cylindrical shape with a horizontal cross-sectional area decreasing toward the personal air outlet, and the vents are provided in two opposing peripheral walls of the casing, and the blades are attached to blade arms that are pivotally supported in a hanging manner near the other two peripheral walls of the casing, so as to be able to swing toward and toward the vents. Weight arms are pivotally supported so that they rotate in conjunction with the swinging of the aforementioned blade arms and their upper ends protrude from the upper surface of the casing, and these weight arms are erected at positions closer to the other peripheral wall portions of the casing, and a pair of these weight arms are connected by a weight bar. The air conditioning outlet device according to claim 1, wherein the pressure adjusting weight is provided on the flat portion of the blade and the weight bar.

3. The air conditioning outlet device according to claim 1, wherein the air receiving portion of the blades of the differential pressure damper unit is positioned in a portion that is struck by the conditioned airflow distributed to the ambient side flow path by the switching mechanism.

4. The air conditioning outlet device according to claim 2, wherein the air receiving portion of the blades of the differential pressure damper unit is positioned in a portion that is struck by the conditioned airflow distributed to the ambient side flow path by the switching mechanism.

5. An air conditioning outlet device according to any one of claims 1 to 4, comprising: a motor for operating the switching mechanism; a receiving unit for receiving a wireless signal for starting the motor; and a control means for transmitting the signal received by the receiving unit to the motor.

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