Air guide mechanism and air conditioner

Abstract

To provide an air guide mechanism capable of allowing temperature-controlled air to reach a distant place while reducing the possibility of dew condensation.SOLUTION: An air guide mechanism 300 for guiding air that has passed through a louver provided at an air outlet through which temperature-adjusted air is blown out includes a main body portion 310 having a guide plate side guide surface 311 that receives the air that has passed through the louver, and a plurality of vortex generation portions 320 that are erected upward from the guide plate side guide surface 311 and generate longitudinal vortices around an axis along a mainstream direction of the air.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an air guide mechanism and an air conditioning apparatus. [Background technology]

[0002] For example, Patent Document 1 discloses an outlet airflow control device in which a plurality of right-angled triangular vertical vortex generators are planted on the lower surface of an up-and-down airflow deflector installed in an outlet nozzle so that their bases are joined to the lower surface for the purpose of guiding the outlet airflow in the vertical direction. Here, the vertical vortex generators are structures that generate vertical vortices whose axes are in the same direction as the outlet airflow. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3198936 Summary of the Invention [Problem to be solved by the invention]

[0004] By generating vertical vortices, the temperature-adjusted air can be mixed with the surrounding air and travel far, but when a vortex generating unit is attached to a louver installed inside an outlet nozzle as in Patent Document 1, when the louver receives temperature-adjusted air (e.g., cold air), the cold air may mix with the surrounding air, causing condensation to form on the louver and / or components in its vicinity.

[0005] The present disclosure has been made in consideration of these circumstances, and aims to provide an air guide mechanism and an air conditioning device that can direct temperature-controlled air over long distances while reducing the possibility of condensation occurring. [Means for solving the problem]

[0006] In order to solve the above problems, the air guide mechanism and air conditioning apparatus of the present disclosure employ the following measures.

[0007] An air guide mechanism according to one aspect of the present disclosure is an air guide mechanism for guiding air that has passed through louvers provided at the outlet of an air conditioning device from which temperature-adjusted air is blown out, and comprises a main body having a guide surface that receives the air that has passed through the louvers, and a plurality of vortex generating sections that stand upright from the guide surface and generate vertical vortices around an axis along the main air flow direction.

[0008] An air conditioning apparatus according to one aspect of the present disclosure includes an air guide mechanism and the louver provided at the air outlet. [Effects of the Invention]

[0009] According to the present disclosure, it is possible to allow temperature-controlled air to reach long distances while reducing the possibility of condensation occurring. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a bottom perspective view of the air conditioning apparatus according to the embodiment of the present disclosure. [Figure 2] FIG. 2 is a side view seen from the direction of arrow A shown in FIG. [Figure 3] FIG. [Figure 4] FIG. 2 is a plan view of the main body and the vortex generating part as viewed from above. [Figure 5] 5 is a side view of the vortex generating part as seen from the direction of arrow B shown in FIG. 4. [Figure 6] 6 is a plan view of the vortex generating section as seen from the direction of arrow C shown in FIG. 5. [Figure 7] 6 is a plan view of the vortex generating section as seen from the direction of arrow C shown in FIG. 5 (showing the air flow). FIG. [Figure 8] FIG. 2 is a front view of the vortex generating section as seen from the front. [Figure 9] FIG. 4 is a front view of a plurality of vortex generating parts as viewed from the front. [Figure 10]FIG. 4 is a front view of a plurality of vortex generating parts as viewed from the front. [Figure 11] This is a graph summarizing the relationship between the width direction distance (vertical axis) and the average wind speed (horizontal axis) at positions 0.5 m, 1.0 m, 2.0 m, and 3.0 m in front of the air outlet. [Figure 12] This is a graph summarizing the relationship between the height from the floor (vertical axis) and the average wind speed (horizontal axis) at a position 2.0 m in front of the air outlet. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an air guide mechanism and an air conditioning apparatus according to an embodiment of the present disclosure will be described with reference to the drawings.

[0012] In the following description, the up-down direction refers to the direction from top to bottom or bottom to top, the front-to-back direction refers to the direction from front to back or back to front, and the left-to-right direction refers to the direction from left to right or right to left. The up-down direction, the front-rear direction, and the left-right direction are substantially perpendicular to one another. Furthermore, these directions are terms used for the sake of easy understanding of the explanation, and do not limit the actual posture of the product.

[0013] [Overall composition] The air conditioner 10 is, for example, a ceiling-mounted indoor unit that takes in indoor air, adjusts the temperature of the taken-in air, and supplies the temperature-adjusted air into the room. As shown in FIG. 1, the air conditioning device 10 includes a main body case 100 that houses equipment and components such as a motor, a fan, a heat exchanger, a bell mouth, and a drain pan (not shown), and a louver 200 and an air guide mechanism 300 provided at an air outlet 123 of the main body case 100.

[0014] The main body case 100 is a housing that is rectangular when viewed from below and has a space formed therein for accommodating devices and components. The main body case 100 is installed, for example, on the ceiling of a building.

[0015] The main body case 100 has a box-shaped cabinet 110 embedded in the ceiling and a top panel 120 attached to the bottom of the cabinet 110 and exposed to the ceiling surface. The top panel 120 has a panel body 121 formed as a rectangular frame and a grill 122 provided in the center of the panel body 121 .

[0016] The top panel 120 has four air outlets 123 formed therein. The air outlet 123 is an opening through which air that has passed through the heat exchanger (that is, air whose temperature has been adjusted) is blown out. The four air outlets 123 are arranged to surround the grille 122 in the left-right and front-rear directions. The number and arrangement of the air outlets 123 can be changed as appropriate.

[0017] As shown in FIGS. 1 and 2, each air outlet 123 is provided with a louver 200 and an air guide mechanism 300.

[0018] The louver 200 is a component for guiding the air blown out from the air outlet 123 and adjusting the direction of the air. As shown in Fig. 2, louver 200 has louver-side guide surface 201 that faces diagonally upward and forward. Louver-side guide surface 201 is a surface that receives air blown out from air outlet 123. The air that has been blown out from air outlet 123 and reaches louver-side guide surface 201 flows along louver-side guide surface 201. This adjusts the direction of the air blown out from air outlet 123. The louver 200 is rotatably attached to the main body case 100 and rotates around a louver-side rotation axis Cl extending in the left-right direction in Fig. 2 (a direction perpendicular to the up-down and front-back directions). Therefore, the louver 200 adjusts the direction of air in the up-down direction.

[0019] Air guide mechanism 300 is a component that guides the air that has passed through louver 200 (that is, the air whose direction has been adjusted by louver 200) and further adjusts the direction of the air. As shown in FIG. 3, the air guide mechanism 300 is a component that is generally U-shaped as a whole, and includes a main body portion 310, a vortex generating portion 320, and a support portion 330.

[0020] The support portion 330 is a generally U-shaped portion having two arms 331 arranged in parallel and a connection panel 332 disposed between the two arms 331. Each arm 331 is a portion extending in the front-rear direction, with a fulcrum portion 331a formed at the base end (rear end) and a connection panel 332 connected to the tip (front end). The connection panel 332 is a plate-like portion extending in the left-right direction, and both ends are connected to the ends of the arms 331 . The support part 330 is rotatably attached to the main body case 100 via the fulcrum parts 331a of each arm 331, and rotates around a guide mechanism side rotation axis Cg extending in the left-right direction in Fig. 2. The rotational movement of the support part 330 is linked to the rotational movement of the louver 200, for example. The support portion 330 is, for example, formed by integrally forming two arms 331 and a connection panel 332 as one component.

[0021] As shown in FIGS. 2 and 3, the main body 310 is attached to the upper surface of the connection panel 332 of the support part 330. As shown in Figures 2 to 5, the main body 310 is a plate-like part that is rectangular when viewed from above, with the left-right direction as the longitudinal direction (width direction), the front-rear direction as the lateral direction, and the up-down direction as the thickness direction.

[0022] The main body 310 is a plate-like portion that extends in the left-right direction. The main body 310 has an upwardly facing guide plate side guide surface 311. In other words, the upper surface of the main body 310 serves as the guide plate side guide surface 311. Guide plate side guide surface 311 is a surface that receives air that has passed through louver 200 (i.e., air whose direction has been adjusted by louver 200). Air that has passed through louver 200 and reached guide plate side guide surface 311 flows along guide plate side guide surface 311. This adjusts the direction of the air that has passed through louver 200. Specifically, the direction of the air that has passed through louver 200 faces upward (toward the ceiling) compared to when air guide mechanism 300 is not present. This prevents the air from directly hitting the user, reducing the feeling of a draft.

[0023] A plurality of vortex generating portions 320 are provided on the guide plate side guide surface 311. The multiple vortex generating sections 320 include, for example, vortex generating section 320A, vortex generating section 320B, vortex generating section 320C, and vortex generating section 320D. Hereinafter, when each vortex generating section is described separately, at least one of the reference symbols 320A, 320B, 320C, and 320D is used, and when each vortex generating section is described without distinction, the reference symbol 320 is used. Each vortex generating section 320 is a section for generating a longitudinal vortex around an axis along the main flow direction of air that has passed through the louver 200 . The vortex generating sections 320 are erected upward or obliquely upward from the guide plate side guide surface 311, and are arranged in a row at intervals in the width direction of the main body section 310. Each vortex generating section 320 may be formed integrally with the main body section 310 as a single part, or may be a separate part from the main body section 310 and connected and fixed to the main body section 310 .

[0024] [Configuration of vortex generator] The configuration of the vortex generating section 320 will now be described in detail.

[0025] 4 and 6, the shape of the vortex generating section 320 is a known airfoil shape when viewed from the direction in which it is erected (when viewed from above). Specifically, the shape of the vortex generating section 320 is an airfoil shape having a leading edge 321, a trailing edge 322, a pressure surface 323 that smoothly connects the leading edge 321 and the trailing edge 322, and a suction surface 324. Here, the pressure surface 323 is a surface that corresponds to the lower surface of the wing and generates a high-pressure region. Furthermore, the suction surface 324 is a surface that corresponds to the upper surface of the wing and generates a low-pressure region.

[0026] 7 and 8, when the air that has passed through the louver 200 reaches the leading edge 321 of the vortex generating section 320, the air is divided at the leading edge 321, with some of the air flowing along the ventral surface 323 and some of the air flowing along the rear surface 324. At this time, a high-pressure region is generated on the ventral surface 323 side, and a low-pressure region is generated on the rear surface 324 side. At the upper end surface (wing tip surface 325) of vortex generating section 320, air flows from the high-pressure region toward the low-pressure region. This air inflow overlaps with the airflow that has passed through louver 200 and the airflow along back surface 324, generating a longitudinal vortex. This principle is similar to that of the generation of wingtip vortices in an aircraft.

[0027] The blade tip surface 325 is preferably a plane that coincides with a plane that is substantially perpendicular to the direction in which the vortex generating section 320 is erected. This causes air to flow forcefully from the high pressure region to the low pressure region through the blade tip surface 325, making it easier for strong longitudinal vortices to occur.

[0028] By generating vertical vortices, the temperature-adjusted air can be mixed with the surrounding air and travel farther (improving its ability to travel in a straighter direction). Furthermore, the temperature-adjusted air can be diffused in the width direction and the up-down direction by the vertical vortex, which means that the temperature-adjusted air can reach a wide area. In addition, the vortex generating section 320, which is provided to mix the air and allow the air to reach a wide area, acts in a direction that obstructs the flow of air that has passed through the louver 200, but by making the vortex generating section 320 wing-shaped, air resistance can be reduced.

[0029] From the viewpoint of generating strong vertical vortices, it seems preferable to provide vortex generating portion 320 on louver-side guide surface 201 of louver 200, where air flows at a faster flow rate. However, when the vortex generating unit 320 is attached to the louver side guide surface 201 of the louver 200, when the louver 200 is exposed to cold air, the cold air may mix with the surrounding air, causing condensation to form on the louver 200 and / or components in its vicinity. Therefore, in this embodiment, the possibility of condensation occurring is reduced by generating vertical vortices using air (air that has passed through louver 200) that is at least warmer than the cool air before passing through louver 200. Furthermore, when vortex generating unit 320 is attached to louver-side guide surface 201 of louver 200, the air blown out from air outlet 123 diffuses in the width direction once it passes through louver 200. Some of the air that diffuses in the width direction cannot be received by guide-plate-side guide surface 311 of air guide mechanism 300 and instead hits the user directly.

[0030] The trailing edge 322 of the vortex generating portion 320 may be a sharp edge, or may be a rounded shape (R-shape) having a predetermined trailing edge radius. The trailing edge radius of the vortex generating section 320 is preferably set to, for example, 0.2 mm to T / 2 mm, where T is the maximum blade thickness (see FIG. 6).

[0031] [Vortex generator placement] The arrangement of the multiple vortex generating sections 320 will now be described in detail.

[0032] When the center line in the width direction of the main body portion 310 is defined as Lce, the vortex generating portions 320 are arranged symmetrically with respect to the center line Lce. Therefore, in the following description, the range AL on the left side of the center line Lce will be described in detail.

[0033] As shown in FIGS. 3 and 4, the plurality of vortex generating sections 320 are arranged in a row at intervals in the width direction of the main body section 310. 4, the multiple vortex generating parts 320 in this embodiment are arranged in the order of vortex generating part 320A, vortex generating part 320B, vortex generating part 320C, and vortex generating part 320D in the direction away from the center line Lce. However, the number of vortex generating parts 320 can be changed as appropriate.

[0034] In the following description, the term chord line 326 is used, and the chord line 326 is a straight line connecting the leading edge 321 and the trailing edge 322. In addition, in Figure 4, instead of the chord line 326, a line Lch, which is a line extending both ends of the chord line 326, is displayed. This is because if the chord line 326 were displayed in Figure 4, the chord line 326 would be short and difficult to see.

[0035] [[Direction in which the ventral surface of the vortex generator faces]] As shown in FIG. 4, each vortex generating section 320 has a chord line 326 (line Lch) inclined so that the pressure surface 323 faces at least upstream in the main air flow direction. By arranging them in this way, each vortex generating section 320 receives air mainly at its pressure surface 323. This makes it possible to further increase the pressure in the high-pressure region generated on the pressure surface 323 side. This increases the pressure difference between the high-pressure region and the low-pressure region, making it possible to generate stronger longitudinal vortices.

[0036] Two vortex generators are arranged adjacent to each other near the center of the width. As shown in FIGS. 4 and 9, two vortex generating sections 320A adjacent to each other near the center in the width direction of the main body section 310 are arranged so that their abdominal surfaces 323 face each other. With this arrangement, when two adjacent longitudinal vortices interfere with each other, the two longitudinal vortices strengthen each other's rotation, as shown in Fig. 9. This allows the temperature-adjusted air to reach a greater distance in the central region Rc, as shown in Fig. 4. Furthermore, the air in the outer region Ro is dragged by the air in the central region Rc due to its viscosity, and as a result, the temperature-adjusted air can reach a greater distance across the entire width direction. Of the two adjacent vortex generating parts 320A, one vortex generating part 320A is located in an area AL to the left of the center line Lce, and the other vortex generating part 320A is located in an area AR to the right of the center line Lce.

[0037] Here, the central region Rc refers to a region that exists in front of two adjacent vortex generation parts 320A near the center in the width direction of the main body part 310. In other words, the central region Rc is a region through which air flows that has passed through the two vortex generation parts 320A. On the other hand, the outer region Ro is a region that exists in front of the vortex generation parts 320 (320B, 320C, 320D) other than the vortex generation part 320A. In other words, the outer region Ro is a region through which air flows that has passed through the vortex generation parts 320B, 320C, 320D. In other words, the outer region Ro is a region that is located outside the central region Rc in the width direction. However, the boundary between the central region Rc and the outer region Ro does not have to be strict.

[0038] As shown in FIG. 9, two adjacent vortex generating parts 320A near the center in the width direction of the main body part 310 are arranged with a gap in the width direction so that the generated longitudinal vortices interfere with each other. By arranging them in this way, two adjacent longitudinal vortices come closer to each other, making it easier for them to interfere with each other.

[0039] Also, as shown in Figure 4, two adjacent vortex generating sections 320A near the center of the width direction of the main body 310 have inclined chord lines 326 (line Lch) so that the leading edges 321 are positioned outward of the trailing edges 322 in the width direction. By arranging them in this way, two adjacent longitudinal vortices move closer to each other, which makes it easier for the two adjacent longitudinal vortices to interfere with each other. 4, in the range AL to the left of the center line Lce, the chord line 326 (line Lch) of the vortex generating section 320A is inclined by -10 degrees with respect to the center line Lce, where clockwise is positive (+). Note that this angle is merely an example.

[0040] [[Vortex generators located outside the two adjacent vortex generators near the center]] As shown in FIG. 4, each of the vortex generating sections 320B, 320C, and 320D, which are arranged outside the two vortex generating sections 320, has an inclined chord line 326 such that the trailing edge 322 is positioned outside the leading edge 321 in the width direction. By arranging them in this way, the temperature-adjusted air can be efficiently diffused outward in the width direction, that is, the temperature-adjusted air can be efficiently delivered to a wide range. 4, in a range AL to the left of the center line Lce, the chord line 326 (line Lch) of the vortex generating section 320B is inclined by +10 degrees with respect to the center line Lce, and the chord lines 326 (line Lch) of the vortex generating sections 320C and 320D are inclined by +20 degrees with respect to the center line Lce. Note that these numerical values ​​regarding the angles are merely examples.

[0041] As shown in Fig. 4, each of the vortex generating parts 320B, 320C, and 320D is arranged with its pressure surface 323 facing outward. As shown in Fig. 10, the vortex generating parts 320B, 320C, and 320D are spaced apart in the width direction so that the generated longitudinal vortices do not interfere with each other. For example, the spacing is set to be at least greater than the spacing between the vortex generating parts 320A. By arranging them in this way, it is possible to prevent two adjacent longitudinal vortices from interfering with each other and canceling out each other's rotation. The reason why each vortex generating section 320B, 320C, 320D is positioned so that each ventral surface 323 faces outward is to achieve two things: (1) to receive air mainly at the ventral surface 323, and (2) to position the trailing edge 322 outward in the width direction than the leading edge 321.

[0042] [[Wingtip orientation]] As shown in FIG. 2, the tip surface 325 of the vortex generator 320 preferably coincides with a horizontal plane in certain cases. Here, the "predetermined case" refers to the case where the louver-side guide surface 201 of the louver 200 is closest to the horizontal plane within the movable range (rotation range) of the louver 200. However, the movable range of the louver 200 refers to the movable range during normal operation, and does not include the movable range while the louver 200 is stopped or during preparation for operation. In other words, the movable range of the louver 200 is the movable range that can be selected by an operator by operating the louver 200 during normal operation (for example, by operating the operation panel). This makes it possible to effectively generate vertical vortices when blowing air in a direction closest to the horizontal direction, that is, when it is desired to supply air far in the horizontal direction.

[0043] [effect] According to this embodiment, the following effects are achieved.

[0044] The air guide mechanism 300 includes a main body 310 having a guide-plate-side guide surface 311 that receives air that has passed through the louver 200, and a plurality of vortex generating units 320 that stand upright from the guide-plate-side guide surface 311 and generate vertical vortices around an axis along the main air flow direction. By generating vertical vortices, the temperature-adjusted air can be mixed with the surrounding air and spread over a long distance (improving linearity). Furthermore, by generating vertical vortices, the temperature-adjusted air can be diffused in the width direction and the up-down direction. In other words, the temperature-adjusted air can be spread over a wide area. Furthermore, since air guide mechanism 300 is intended to guide air that has passed through louver 200, air guide mechanism 300 guides air that is at least at a higher temperature than the air (cool air) before passing through louver 200. Therefore, compared to when vortex generating unit 320 is attached to louver 200, the possibility of condensation occurring can be reduced.

[0045] The shape of each vortex generating section 320 when viewed from the direction in which it is erected is wing-shaped, which makes it possible to reduce air resistance. Furthermore, the airfoil-shaped vortex generating section 320 efficiently generates a strong wingtip vortex, which can be used as a longitudinal vortex. Furthermore, the wing-shaped vortex generating unit 320 has lower air resistance and can generate longitudinal vortices more efficiently than, for example, a vortex generating unit that has a simple rectangular shape when viewed from the standing direction. Furthermore, the wing-shaped vortex generating unit 320 can generate stronger longitudinal vortices than, for example, a vortex generating unit that has a triangular shape when viewed from the standing direction.

[0046] Two adjacent vortex generating sections 320A near the center in the width direction are arranged so that their pressure surfaces 323 face each other. Therefore, when two adjacent longitudinal vortices interfere with each other, the two longitudinal vortices strengthen each other's rotation. This allows the temperature-adjusted air to reach a greater distance in the central region Rc. Furthermore, the air in the outer region Ro is dragged by the air in the central region Rc due to its viscosity, so that the temperature-adjusted air can reach a greater distance throughout the entire width direction.

[0047] Two adjacent vortex generating units 320A near the center in the width direction are spaced apart in the width direction so that the generated longitudinal vortices interfere with each other. The interference between the two adjacent longitudinal vortices further strengthens the rotation of each other. This allows the temperature-adjusted air to reach a greater distance in the central region Rc. Furthermore, the air in the outer region Ro is dragged by the air in the central region Rc due to its viscosity, resulting in the temperature-adjusted air reaching a greater distance across the entire width direction.

[0048] The two adjacent vortex generating sections 320A near the center in the width direction have inclined chord lines 326 so that the leading edge 321 is positioned outward of the trailing edge 322 in the width direction, which makes it easier for the two adjacent longitudinal vortices to interfere with each other and further strengthen their rotation. This allows the temperature-adjusted air to reach a greater distance in the central region Rc. Furthermore, the air in the outer region Ro is dragged by the air in the central region Rc due to its viscosity, so that the temperature-adjusted air can reach a greater distance across the entire width direction.

[0049] The chord lines 326 of the vortex generating sections 320B, 320C, and 320D arranged on the outside are inclined so that the trailing edges 322 are positioned further outward in the width direction than the leading edges 321, and this allows the temperature-adjusted air to be efficiently diffused outward in the width direction. In other words, the temperature-adjusted air can be efficiently spread over a wide area.

[0050] The vortex generating sections 320B, 320C, and 320D arranged on the outside are spaced apart in the width direction so that the generated longitudinal vortices do not interfere with each other, thereby preventing two adjacent longitudinal vortices from interfering with each other and canceling out each other's rotation.

[0051] Since the chord line 326 of each vortex generating section 320 is inclined so that the pressure surface 323 faces upstream in the main airflow direction, the air is received mainly by the pressure surface 323. This makes it possible to further increase the pressure in the high-pressure region. This increases the pressure difference between the high-pressure region and the low-pressure region, making it possible to generate stronger longitudinal vortices.

[0052] Here, we will explain experimental data using an air conditioning device 10 that employs the air guide mechanism 300 of this embodiment, and a comparative air conditioning device 10 that employs an air guide mechanism 300 that omits the vortex generating section 320.

[0053] 11 shows a graph summarizing the relationship between the widthwise distance (vertical axis) and the average wind speed (horizontal axis) at positions 0.5 m, 1.0 m, 2.0 m, and 3.0 m in front of the air outlet 123. Here, the widthwise distance is based on the center line Lce. According to Figure 11, no significant difference was observed in the average flow velocity in the central region Rc (for example, the region within a widthwise distance of 0.3 m) between the case where the vortex generating section 320 was present and the case where the vortex generating section 320 was absent. On the other hand, the average flow velocity in the outer region Ro (for example, a region where the widthwise distance exceeds 0.3 m) tended to be larger in the case "with vortex generating section 320" than in the case "without vortex generating section 320" the further forward the position was from the air outlet 123. This means that the generation of vertical vortices and the arrangement of vortex generating section 320 allowed the air to efficiently reach a wide range in the widthwise direction. 11 shows line L1 (with vortex generating section 320) and line L2 (without vortex generating section 320) connecting widthwise distances where the average wind speed is 0.3 m / s at each position in front of air outlet 123. Comparing line L1 and line L2, it can be seen that the range of widthwise distances where the average wind speed is 0.3 m / s is wider in the case where "with vortex generating section 320" than in the case where "without vortex generating section 320." Note that a wind speed of 0.3 m / s is the wind speed that is a guideline for when a person can feel the wind.

[0054] 12 shows a graph summarizing the relationship between the height (vertical axis) from the floor surface and the average wind speed (horizontal axis) at a position 2.0 m in front of the air outlet 123. Here, it is assumed that the air outlet 123 is installed at a height of 2.0 m from the floor surface. Comparing the height from the floor where the average wind speed is 0.3 m / s, it can be seen that the height from the floor where the average wind speed is 0.3 m / s is lower in the case "with vortex generating unit 320" than in the case "without vortex generating unit 320." This means that the generation of vertical vortices and the arrangement of vortex generating unit 320 efficiently diffuse the air over a wide area downward.

[0055] [Variation 1] The two adjacent vortex generating sections 320A near the center of the width of the main body 310 are arranged so that their ventral surfaces 323 face each other, but from the viewpoint that the two longitudinal vortices strengthen each other's rotation, the two vortex generating sections 320A may also be arranged so that their back surfaces 324 face each other.

[0056] [Variation 2] The main body portion 310 may be configured to be movable relative to the connecting panel 332 of the support portion 330 . For example, the main body 310 in FIG. 3 may be configured to rotate relative to the connection panel 332 about a rotation axis extending in the left-right direction.

[0057] [Variation 3] The vortex generator 320 may be configured to be movable relative to the main body 310 . 3 may be configured to rotate about a rotation axis extending in the vertical direction relative to the main body 310. In other words, the inclination angle of the chord line 326 may be variable.

[0058] [Variation 4] The connection panel 332 of the support section 330 and the main body section 310 do not need to be separate components, and the connection panel 332 and the main body section 310 may be integrated.

[0059] [Variation 5] The air conditioning device 10 may be of a type other than a ceiling-mounted type. For example, the air conditioning device 10 may be a wall-mounted indoor unit.

[0060] [Note] The air guide mechanism and air conditioning apparatus according to one embodiment of the present disclosure described above can be understood, for example, as follows.

[0061] The air guide mechanism (300) according to the first aspect of the present disclosure is an air guide mechanism for guiding air that has passed through louvers (200) provided at an air outlet (123) of an air conditioner (10) from which temperature-adjusted air is blown out, and includes a main body (310) having a guide surface (311) that receives the air that has passed through the louvers, and a plurality of vortex generating sections (320) that extend upward from the guide surface and generate vertical vortices around an axis along the main flow direction of the air.

[0062] The air guide mechanism includes a main body having a guide surface that receives air that has passed through the louvers, and a plurality of vortex generating units that extend upward from the guide surface and generate vertical vortices around an axis along the main air flow direction. By generating vertical vortices, the temperature-adjusted air can be mixed with the surrounding air and spread over a long distance (improving linearity). Furthermore, by generating vertical vortices, the temperature-adjusted air can be diffused in the width direction and the up-down direction. In other words, the temperature-adjusted air can be spread over a wide area. Furthermore, since the air guide mechanism is designed to guide the air that has passed through the louvers, the air guide mechanism guides air that is at least warmer than the air (cool air) before passing through the louvers. This reduces the possibility of condensation occurring compared to when the vortex generators are attached to the louvers.

[0063] In the air guide mechanism according to the second aspect of the present disclosure, in the first aspect, the shape of the vortex generating portion when viewed from the direction of upright installation is an airfoil shape having a leading edge (321) and a trailing edge (322), as well as a pressure surface (323) that generates a high-pressure region and a dorsal surface (324) that generates a low-pressure region.

[0064] The shape of each vortex generating section when viewed from the direction in which it is erected is wing-shaped, which makes it possible to reduce air resistance. Furthermore, a wingtip vortex can be generated by the vortex generating portion of the airfoil, and the wingtip vortex can be used as a longitudinal vortex.

[0065] In the air guide mechanism according to the third aspect of the present disclosure, in the second aspect, the multiple vortex generating sections are arranged at intervals in the width direction of the main body section, and two adjacent vortex generating sections near the center in the width direction are arranged so that their ventral surfaces or their back surfaces face each other.

[0066] Two adjacent vortex generating units near the center in the width direction are arranged so that their pressure surfaces or back surfaces face each other. Therefore, when two adjacent longitudinal vortices interfere with each other, the two longitudinal vortices strengthen each other's rotation. This allows the temperature-adjusted air to reach a greater distance in the center region (Rc). Furthermore, the air in the outer region (Ro) is dragged by the air in the center region due to its viscosity, so that the temperature-adjusted air can reach a greater distance across the entire width direction.

[0067] In the air guide mechanism according to the fourth aspect of the present disclosure, in the third aspect, two adjacent vortex generating sections near the center in the width direction are arranged at a distance in the width direction so that the generated longitudinal vortices interfere with each other.

[0068] Two adjacent vortex generating units near the center in the width direction are spaced apart in the width direction so that the generated longitudinal vortices interfere with each other. The interference between the two adjacent longitudinal vortices further strengthens the rotation of each other. This allows the temperature-adjusted air to reach a greater distance in the central region. Furthermore, the air in the outer regions is dragged by the air in the central region due to its viscosity, resulting in the temperature-adjusted air reaching a greater distance across the entire width direction.

[0069] The air guide mechanism according to the fifth aspect of the present disclosure is the third or fourth aspect, in which two adjacent vortex generating sections near the center in the width direction have inclined chord lines (326) so that the leading edges are positioned outward in the width direction relative to the trailing edges.

[0070] The chord lines of two adjacent vortex generators near the center in the width direction are inclined so that the leading edge is positioned further outward than the trailing edge in the width direction, which makes it easier for the two adjacent longitudinal vortices to interfere with each other and further strengthen their rotation. This allows the temperature-adjusted air in the central region to reach a greater distance. Furthermore, the air in the outer regions is dragged by the air in the central region due to its viscosity, so that the temperature-adjusted air can reach a greater distance across the entire width direction.

[0071] In the air guide mechanism according to a sixth aspect of the present disclosure, in any of the third to fifth aspects, each of the vortex generating sections arranged outside two adjacent vortex generating sections near the center in the width direction has a chord line inclined so that the trailing edge is positioned outside the leading edge in the width direction.

[0072] Each vortex generating section located outside two adjacent vortex generating sections near the center in the width direction has an inclined chord line so that its trailing edge is positioned outside its leading edge in the width direction, allowing the temperature-adjusted air to be efficiently diffused outward in the width direction, that is, allowing the temperature-adjusted air to reach a wide area efficiently.

[0073] The air guide mechanism according to the seventh aspect of the present disclosure is such that, in any of the third to sixth aspects, each of the vortex generating sections arranged outside two adjacent vortex generating sections near the center in the width direction is arranged so that each of the ventral surfaces faces the same direction and is arranged at intervals in the width direction so that the generated longitudinal vortices do not interfere with each other.

[0074] Each vortex generating section arranged outside two adjacent vortex generating sections near the center in the width direction is arranged at intervals in the width direction so that the generated longitudinal vortices do not interfere with each other, thereby preventing interference between two adjacent longitudinal vortices that would cancel out each other's rotations.

[0075] An air guide mechanism according to an eighth aspect of the present disclosure is any one of the second to seventh aspects, wherein the chord line of each of the vortex generating portions is inclined so that the pressure surface faces upstream in the main flow direction of the air.

[0076] The chord line of each vortex generator is inclined so that the pressure surface faces upstream in the main airflow direction, so that the pressure in the high-pressure region is mainly received by the pressure surface. This further increases the pressure difference between the high-pressure region and the low-pressure region, allowing for the generation of stronger longitudinal vortices.

[0077] An air conditioner according to a ninth aspect of the present disclosure includes the air guide mechanism according to any one of the first to eighth aspects, and the louver provided at the air outlet. [Explanation of symbols]

[0078] 10 Air conditioning equipment (indoor unit) 100 Main unit case 110 Cabinet 120 Top panel 121 Panel body 122 Grill 123 Air outlet 200 Louver 201 Louver side guide surface 300 Air guide mechanism 310 Main body 311 Guide board side guide surface 320(320A, 320B, 320C, 320D) Vortex generator 321 leading edge 322 Trailing edge 323 ventral surface 324 Back 325 Wing tip surface 326 Chord Line 330 Support Department 331 Arm 331a Fulcrum part 332 Connection Panel AL Left Range AR Right Range Cg Guide mechanism side rotation axis Cl Louver side rotation axis Lce center line Lch: Line along the chord line Rc central area Ro outer area T Maximum blade thickness

Claims

1. An air guide mechanism for guiding air that has passed through a louver provided at an air outlet of an air conditioner from which temperature-adjusted air is blown out, a main body having a guide surface for receiving air that has passed through the louvers; a plurality of vortex generating sections extending upward from the guide surface and configured to generate vertical vortices around an axis along a main flow direction of air; Equipped with Air guide mechanism.

2. The shape of the vortex generating portion as viewed from the direction of erection is an airfoil shape having a leading edge, a trailing edge, a pressure surface that generates a high-pressure area, and a back surface that generates a low-pressure area. The air guide mechanism of claim 1 .

3. The plurality of vortex generating portions are arranged at intervals in the width direction of the main body portion, Two adjacent vortex generating sections in the vicinity of the center in the width direction are arranged so that the ventral surfaces or the back surfaces face each other. The air guide mechanism of claim 2 .

4. Two adjacent vortex generating sections near the center in the width direction are spaced apart in the width direction so that the generated longitudinal vortices interfere with each other. The air guide mechanism of claim 3 .

5. The two vortex generating sections adjacent to each other near the center in the width direction have inclined chord lines such that the leading edges are positioned outward of the trailing edges in the width direction. The air guide mechanism of claim 3 .

6. Each of the vortex generating sections disposed outside two adjacent vortex generating sections near the center in the width direction has an inclined chord line such that the trailing edge is positioned outside the leading edge in the width direction. The air guide mechanism of claim 3 .

7. The vortex generating sections arranged outside two adjacent vortex generating sections near the center in the width direction are arranged so that the pressure surfaces face the same direction and are spaced apart in the width direction so that the generated longitudinal vortices do not interfere with each other. The air guide mechanism of claim 3 .

8. The chord line of each of the vortex generating portions is inclined so that the pressure surface faces upstream in the main flow direction of the air.

8. An air guide mechanism according to claim 2.

9. The air guide mechanism according to claim 1; The louver provided at the air outlet; Equipped with Air conditioning equipment.

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