JP5640738B2 - Air outlet structure for air conditioner - Google Patents

Description

  The present invention relates to an air conditioner air outlet structure, and more particularly, to a configuration for changing the air direction in an air conditioner air outlet provided with an air outlet for blowing conditioned air.

  Conventionally, there is a suspended ceiling type air conditioner as disclosed in Patent Document 1 (Japanese Utility Model Publication No. 61-101314). At the air outlet of this ceiling suspended air conditioner, a horizontal control plate pivotally supported by the blowout flow path, a shielding plate that rotates independently of the horizontal control plate on the upper surface of the blowout flow path, A fluid guide plate having a jet guide curved surface directed downward on the lower surface of the blowing channel is provided. And in this blower outlet structure, the conditioned air can be blown out horizontally by rotating the shielding plate and the horizontal control plate in the horizontal direction. Moreover, in this blower outlet structure, by turning the shielding plate and the horizontal control plate downward, the conditioned air can be turned along the jet guide curved surface, and the conditioned air can be blown downward.

  Patent Document 2 (Japanese Patent No. 4194487) describes a fluid distributor that distributes a fluid flow in a duct into two. In this fluid distribution device, a movable wall is provided that can switch between a state where it is flush with the side wall and a state where it protrudes inside the side wall at the branching position of the suction port and the two discharge ports. Yes. In this distribution structure, the fluid can be made to flow toward the first discharge port connected to the movable wall by positioning the movable wall so as to be flush with the side wall. Further, in this distribution structure, the fluid is turned along the surface facing the movable wall by projecting the movable wall to the inside of the side wall, and the fluid is directed to the second discharge port connected to the surface facing the movable wall. Can be shed.

  The former air outlet structure and the latter distribution structure perform conditioned air wind direction control and fluid flow distribution control by turning conditioned air and fluid flow by operating a shielding plate and a movable wall.

  However, in the latter distribution structure, the movable wall protrudes to the inside of the side wall depending on the state of the fluid flow up to the branching position between the suction port and the two discharge ports (for example, the fluid flow is in a laminar flow state). Even if the operation is performed, the fluid cannot be turned along the surface facing the movable wall, and as a result, the fluid may not flow toward the second discharge port.

  On the other hand, in the former outlet structure, unlike the latter distribution structure, not only the shielding plate but also the horizontal control plate is operated, so that the conditioned air is turned along the jet guide curved surface. The conditioned air can be blown downward, but the presence of the horizontal control plate increases the pressure loss of the conditioned air. In addition, in order to blow all the conditioned air downward, two movable parts, a shielding plate and a horizontal control plate, are required, resulting in a complicated structure and an increase in cost.

  Thus, in the former blower outlet structure and the latter distribution structure, the direction of the conditioned air and the fluid flow cannot be reliably turned only by the operation of the protruding member such as the shielding plate or the movable wall.

  An object of the present invention is to make it possible to reliably turn the conditioned air in a wind direction only by operating a projecting member in an air conditioner blowout structure including a blowout flow path for blowing out conditioned air.

The air-conditioning apparatus outlet structure according to the first aspect is an air-conditioning apparatus outlet structure provided with an outlet passage for blowing out conditioned air, and the outlet of the outlet passage has a large degree of curvature in a sectional view. The flow path width is widened by forming the guide wall and the facing wall facing the guide wall and having a small degree of curvature. The blowing channel is provided with a projecting member that can project into the blowing channel from the opposing wall side. It is located on the upstream side of the projecting member in the blowout flow path. In the cross-sectional view, the flow path width is reduced or the part of the substantially same flow path width is the upstream portion, and the flow path width is enlarged in the cross-sectional view. In this case, the upstream guide wall side surface is provided with a turbulence generating portion that turbulently flows the conditioned air flowing along the upstream guide wall side surface. Yes. And in this blower outlet structure, the 1st blowing state which makes the wind direction of conditioned air the wind direction along a guide wall only by switching of the protrusion of a protrusion member, or a non-projection, and the wind direction of conditioned air are made into the wind direction along an opposing wall It can switch to the 2nd blowing state . Here, the guide wall is curved in a convex shape toward the outlet flow path side, and compared with the curvature radius in the curved portion near the boundary between the upstream portion and the downstream portion, the curved portion on the downstream side from the curved portion near the boundary. Is formed so that the length of the downstream portion in the flow direction is shorter than that in the case where the guide wall is formed only by the curvature radius of the curved portion on the downstream side. .

  In this blower outlet structure, when the projecting member is not projected from the opposing wall side into the blowout flow path, the conditioned air flowing from the upstream portion to the downstream portion adheres to the opposing wall due to inertia and is deflected to the guide wall side. Hateful. At this time, the conditioned air flowing along the surface of the guide wall on the downstream side of the turbulent flow part is turbulent due to separation / reattachment in the turbulent flow part, but the inertia of the inflowing conditioned air Therefore, it is hard to be deflected to the guide wall side. Thereby, the wind direction of the conditioned air blown out from the blow-out flow path becomes the second blow-out state that is the wind direction along the opposing wall. On the other hand, in this blower outlet structure, when the projecting member is projected from the opposing wall side into the blowout flow path, the wind direction of the conditioned air flowing from the upstream portion to the downstream portion is deflected in a direction in which the projecting member is separated from the opposing wall. It becomes easy to be done. In addition, at this time, since the turbulent portion is provided on the surface on the guide wall side in the upstream portion, the conditioned air flowing along the guide wall is turbulent by the turbulent portion, and thereby the guide wall Along with this, entrainment of ambient air into the conditioned air is promoted, and negative pressure is generated near the guide wall due to vortex generation. For this reason, the conditioned air flowing from the upstream part to the downstream part tends to flow along the guide wall on the downstream side by the operation of the projecting member and the Coanda effect by the turbulent part, and thereby the wind direction of the conditioned air is It will be in the 1st blowing state which is the wind direction along a guide wall.

  That is, in this blower outlet structure, the turbulent flow portion is provided together with the projecting member, and the wind direction of the conditioned air can be reliably turned only by operating the projecting member. In addition, unlike the horizontal control plate employed in the conventional outlet structure, this turbulent flow-generating part is a part provided on the surface on the upstream guide wall side, which increases the pressure loss of conditioned air. It is hard to let you. Further, since the two moving parts of the shielding plate and the horizontal control plate as in the conventional blowout structure are not required, the structure can be simplified and the cost can be reduced.

  Thus, in this blower outlet structure, the wind direction of conditioned air can be reliably turned only by operation of a protrusion member.

  In the air outlet structure for an air conditioner according to the second aspect, in the air outlet structure according to the first aspect, the turbulent flow portion starts to expand the channel width by the guide wall and the opposing wall in the outlet channel. It is provided on the surface upstream of the position and on the guide wall side.

  For example, if the turbulent flow section is provided at a position downstream of the position where the expansion of the flow path width begins, the reattachment of the flow separated at the turbulent flow section is slightly insufficient, and the turbulent flow section is separated from the guide wall. However, here, the turbulent flow section is provided on the surface upstream of the position where the expansion of the flow path width starts and on the surface on the guide wall side. The direction of the conditioned air can be changed more reliably when the member is protruded from the opposing wall.

  The blower outlet structure for an air conditioner according to a third aspect is the blower outlet structure according to the first or second aspect, wherein the turbulent flow portion projects from the surface on the guide wall side of the upstream portion into the blowout flow path. It is a convex part.

  In this blower outlet structure, separation of the conditioned air can surely occur on the surface of the upstream guide wall side, thereby effectively promoting the turbulent flow of the conditioned air.

  The air outlet structure for an air conditioner according to a fourth aspect is the air outlet structure according to the first or second aspect, wherein the turbulent flow portion is formed of a recess formed on the surface of the upstream guide wall. It is a dent.

  In this blower outlet structure, an increase in the pressure loss of the conditioned air due to the presence of the turbulent portion can be suppressed.

  As described above, according to the present invention, the following effects can be obtained.

  In the air-conditioning apparatus outlet structure according to the first aspect, the air direction of the conditioned air can be reliably turned only by operating the protruding member.

  In the air outlet structure for an air conditioner according to the second aspect, the turbulent flow of the conditioned air and the diversion of the wind direction of the conditioned air when the protruding member protrudes from the opposing wall can be more reliably generated.

  In the air conditioner outlet structure according to the third aspect, the turbulent flow of the conditioned air can be effectively promoted.

  In the air conditioner outlet structure according to the fourth aspect, an increase in the pressure loss of the conditioned air due to the presence of the turbulent flow portion can be suppressed.

It is sectional drawing of the duct type indoor unit as 1st Embodiment of the air conditioning apparatus by which the blower outlet structure for air conditioning apparatuses concerning this invention was employ | adopted. FIG. 13 is an enlarged view of a portion A in FIGS. 1, 11, and 12, and is a cross-sectional view illustrating a protruding member and a driving mechanism thereof. FIG. 13 is an enlarged view of a portion B in FIGS. 1, 11, and 12, and is a cross-sectional view showing a convex portion as a turbulent portion. It is a schematic diagram which shows the blower outlet structure using the protrusion member and convex part concerning this invention, Comprising: It is a figure which shows a 2nd blowing state. It is a schematic diagram which shows the blower outlet structure using the protrusion member and convex part concerning this invention, Comprising: It is a figure which shows the mechanism which turns to the 1st blowing state. It is a schematic diagram which shows the blower outlet structure using the protrusion member and convex part concerning this invention, Comprising: It is a figure which shows a 1st blowing state. It is a figure which shows the modification (cross-sectional shape) of a convex-shaped part. It is a modification which shows the blower outlet structure which used the recessed part as a turbulent flow part, Comprising: It is a figure corresponded in FIG. It is a figure which shows the modification (shape which cannot be expressed only by a cross section) of a convex part and a concave part. It is sectional drawing of the ceiling hanging type indoor unit as 2nd Embodiment of the air conditioning apparatus by which the blower outlet structure for air conditioning apparatuses concerning this invention was employ | adopted. It is sectional drawing of the ceiling embedded type indoor unit as 3rd Embodiment of the air conditioning apparatus by which the blower outlet structure for air conditioning apparatuses concerning this invention was employ | adopted.

  Hereinafter, an embodiment of an indoor unit as an air conditioner in which an air conditioner outlet structure according to the present invention is employed will be described with reference to the drawings. In addition, the specific structure of the blower outlet structure for air conditioning apparatuses concerning this invention is not restricted to the following embodiment and its modification, It can change in the range which does not deviate from the summary of invention.

(1) First Embodiment <Configuration>
FIG. 1 is a cross-sectional view of a duct-type indoor unit 1 as a first embodiment of an air conditioner that employs an air conditioner outlet structure according to the present invention. FIG. 2 is an enlarged view of a portion A in FIG. 1, and is a cross-sectional view showing the protruding member 6 and its driving mechanism 7. FIG. 3 is an enlarged view of a portion B in FIG. 1, and is a cross-sectional view showing a convex portion 8 as a turbulent portion. FIG. 4 is a schematic view showing a blowout structure using the protruding member 6 and the convex portion 8 according to the present invention, and is a view showing a second blowing state. FIG. 5 is a schematic view showing a blowout structure using the protruding member 6 and the convex portion 8 according to the present invention, and is a view showing a mechanism for turning to the first blown state. FIG. 6 is a schematic view showing a blow-out structure using the protruding member 6 and the convex portion 8 according to the present invention, and is a view showing a first blowing state.

  The duct type indoor unit 1 is installed in the ceiling space in the air-conditioned room, and mainly includes a duct type indoor unit main body 1a, a blowout duct 1b, and a blowout unit 1c.

  The duct-type indoor unit main body 1a is installed in a space behind the ceiling (shown by a two-dot chain line in FIG. 1) in the air conditioning room, and is a unit for cooling and heating the air conditioning room. The duct type indoor unit 1 a mainly includes a casing 2, a heat exchanger 3, and a blower fan 4.

  In the rear part of the casing 2, a suction opening 2 a that is connected to a suction duct (not shown) and sucks air in the air-conditioned room is formed. A blowing opening 2c for blowing conditioned air is formed in the front portion of the casing 2 so as to face substantially forward.

  The blower fan 4 is a sirocco fan and is disposed in the casing 2. The blower fan 4 is disposed on the upstream side of the heat exchanger 3 with respect to the air flow from the suction opening 2a to the blowout opening 2c. The blower fan 4 sucks air into the casing 2 from the suction opening 2a and generates an airflow that blows out from the blowout opening 2c. The blower fan 4 blows out the conditioned air generated in the heat exchanger 3 from the blowout port 2b of the blowout unit 1c through the blowout flow path 5 formed by the blowout duct 1b connected to the blowout opening 2c and the blowout unit 1c.

  The heat exchanger 3 is a fin-and-tube heat exchanger having a substantially rectangular cross section, and is disposed in the casing 2. The heat exchanger 3 generates conditioned air by cooling the air sucked from the suction opening 2a during cooling and heating the air during heating.

  The blowout flow path 5 is a flow path for sending the conditioned air generated by the heat exchanger 3 to the blowout outlet 2b, and is formed by the blowout duct 1b and the blowout unit 1c as described above. That is, here, the blowout flow path 5 is formed not in the duct type indoor unit main body 1a in which the heat exchanger 3 and the blower fan 4 are housed, but in the blowout duct 1b and the blowout unit 1c connected to the downstream side thereof. Yes. The blowout flow path 5 has an upstream part 51 and a downstream part 52 in a sectional view.

  The upstream portion 51 is a portion on the upstream side from the boundary points O1 and O2 between the upstream portion 51 and the downstream portion 52 in the blowout flow path 5. The upstream part 51 has a contracted flow part 51a having a curved cross-sectional shape so that the conditioned air is contracted as it goes downstream. The curved surface of the contracted portion 51a has a sine curve or a cubic curve.

  The downstream portion 52 is a portion of the outlet flow channel 5 where the downstream flow channel width is expanded from the boundary points O1 and O2 between the upstream portion 51 and the downstream portion 52. The downstream portion 52 includes a guide wall 53 and an opposing wall 54 that faces the guide wall 53 in a cross-sectional view.

  The guide wall 53 is a wall having a large degree of curvature, and extends from the substantially horizontal direction to the downward direction. It is curved in a convex shape toward the outlet channel 5 side. Further, the guide wall 53 is formed so that the radius of curvature in the downstream portion is larger than the portion in the vicinity of the boundary point O1 compared to the radius of curvature in the portion in the vicinity of the boundary point O1 between the upstream portion 51 and the downstream portion 52. Has been. Here, a portion of the guide wall 53 near the boundary point O1 between the upstream portion 51 and the downstream portion 52 is defined as a first wall portion 53a, and a curvature radius in the first wall portion 53a is defined as a curvature radius R1. Further, a portion downstream of the first wall portion 53a, which is a portion near the boundary point O1, is a second wall portion 53b, and a curvature radius at the second wall portion 53b is a curvature radius R2. That is, the curvature radius R2 is larger than the curvature radius R1. The upstream end portion of the guide wall 53 is generally smoothly connected to the curved surface of the contracted portion 51 a of the upstream portion 51.

  The opposing wall 54 is a wall surface with a small degree of curvature and extends in a substantially horizontal direction. For this reason, the downstream portion 52 has a shape in which the channel width is enlarged by a convex curve of the one side wall surface (in this case, the guide wall 53) toward the outlet channel 5 side in a cross-sectional view. become.

  Further, the blowing unit 1c is provided with a projecting member 6 that can project into the blowing channel 5 from the opposing wall 54 side in the vicinity of the boundary point O2 between the upstream portion 51 and the downstream portion 52. The protruding member 6 is a plate-like member, and is inserted into a protruding hole 55 formed in the vicinity of the boundary point O2 between the upstream portion 51 and the downstream portion 52 of the blowout flow path 5 in a cross-sectional view. That is, the upstream portion 51 is a portion located on the upstream side of the projecting member 6 in the blowing flow path 5, and the downstream portion 52 is a portion located on the downstream side of the projecting member 6 in the blowing flow path 5. is there. The guide wall 53 and the opposing wall 54 form a downstream portion 52. Here, the projecting member 6 can be switched between projecting into the blowout flow path 5 and non-projecting by a rack / pinion type drive mechanism 7. The drive mechanism 7 includes a rack gear 61 formed on the protruding member 6, a pinion gear 62 that meshes with the rack gear 61, and a drive motor 63 that drives the pinion gear 62. As a drive mechanism for driving the protruding member 6, a drive mechanism of another system may be adopted instead of the rack / pinion drive mechanism 7 as described above.

  Furthermore, in the blowing unit 1c, the flow of conditioned air flowing along the surface of the upstream portion 51 on the guide wall 53 side on the surface of the upstream portion 51 on the guide wall 53 side (here, the curved surface of the contracted portion 51a). Convex part 8 is provided as a turbulent part for turbulent flow. The convex portion 8 is formed integrally with the surface of the upstream portion 51 on the guide wall 53 side, or is fixed to the surface of the upstream portion 51 on the guide wall 53 side, and blows out from the surface of the upstream portion 51 on the guide wall 53 side. This is a portion protruding into the flow path 5. Unlike the projecting member 6, the projecting portion 8 is incapable of being driven in a state of projecting into the blowing channel 5 at all times.

<Operation and features>
Operation | movement of the duct type indoor unit 1 of this embodiment is demonstrated using FIGS.

  First, the air outlet structure of the duct type indoor unit 1 of the present embodiment will be described.

  In the air outlet structure of the duct type indoor unit 1, in the case where the protruding member 6 is not protruded from the opposing wall 54 side into the outlet flow path 5, the conditioned air flowing from the upstream portion 51 to the downstream portion 52 is caused by inertia to oppose the opposing wall. 54, it is difficult to be deflected to the guide wall 53 side. At this time, the conditioned air flowing along the surface of the guide wall 53 on the downstream side of the convex portion 8 is turbulent due to separation / reattachment at the convex portion 8 as the turbulent portion. Since the inertia of the inflowing conditioned air is superior, it is difficult to be deflected toward the guide wall 53 side. Thereby, the wind direction of the conditioned air blown out from the blow-out flow path 5 becomes the second blow-out state that is the wind direction along the facing wall 54. On the other hand, in the air outlet structure of the duct type indoor unit 1, when the protruding member 6 is protruded into the outlet flow path 5 from the opposing wall 54 side, the wind direction of the conditioned air flowing from the upstream portion 51 to the downstream portion 52 is changed. It becomes easy to be deflected in the direction of peeling from the facing wall 54 by the protruding member 6. In addition, at this time, since the convex portion 8 is provided on the surface of the upstream portion 51 on the guide wall 53 side, the conditioned air flowing along the guide wall 53 is separated from the guide wall 53 by the convex portion 8 and separated and re-applied. It adheres and becomes turbulent (refer to part C in FIG. 5), thereby entraining the surrounding air into the conditioned air along the guide wall 53 (see part D in FIG. 5). In the vicinity of 53, negative pressure is generated due to the generation of vortices (see portion E in FIG. 5). For this reason, the conditioned air flowing from the upstream portion 51 to the downstream portion 52 tends to flow along the downstream guide wall 54 due to the operation of the protruding member 6 and the Coanda effect by the convex portion 8. Is in the first blowing state that is the wind direction along the guide wall 53 (see FIG. 6).

  Thus, in this duct type indoor unit 1, the projecting member 6 and the convex portion 8 as a turbulent flow portion are provided, and the wind direction of the conditioned air can be reliably turned only by operating the projecting member 6. It can be done. In addition, unlike the horizontal control plate employed in the conventional air outlet structure, the convex portion 8 is a portion provided on the surface of the upstream portion 51 on the guide wall 53 side, so that the pressure loss of the conditioned air Is difficult to increase. Further, since the two moving parts of the shielding plate and the horizontal control plate as in the conventional blowout structure are not required, the structure can be simplified and the cost can be reduced.

  And in this duct type indoor unit 1, since it is preferable to blow out conditioned air in a horizontal direction during cooling, the air flow direction X along the opposing wall 54 is such that the protruding member 6 is not protruded from the opposing wall 54 side. Two blowing states are obtained (see FIGS. 1 and 4). Moreover, since it is preferable to blow out conditioned air vertically downward at the time of heating, the protruding member 6 is protruded from the opposing wall 54 side so that the first blowing state that is the wind direction Y along the guide wall 53 is obtained. (See FIGS. 1 and 6).

  As described above, in the air outlet structure of the duct type indoor unit 1, the wind direction of the conditioned air can be reliably turned only by operating the protruding member 6.

  For example, when the convex part 8 as a turbulent flow part is provided in the downstream position rather than the position where the expansion of the flow path width by the guide wall 53 and the opposing wall 54 starts in the blowing flow path 5. However, there is a concern that the reattachment of the flow separated at the convex portion 8 becomes slightly insufficient and separates from the guide wall 53, but here, the convex portion 8 is positioned beyond the position where the expansion of the flow path width starts. Since it is provided on the surface on the upstream side and on the guide wall 53 side, the turbulent flow of the conditioned air and the change in the wind direction of the conditioned air when the protruding member 6 protrudes from the opposing wall 54 are more reliably generated. Be able to.

  In addition, here, the turbulent flow portion is the convex portion 8 that protrudes from the surface on the guide wall 53 side of the upstream portion 51 into the blowout flow path 5, so on the surface on the guide wall 53 side of the upstream portion 51, The separation of the conditioned air can surely occur, and thereby the turbulence of the conditioned air can be effectively promoted.

  Moreover, in this duct type indoor unit 1, as shown in FIGS. 4 to 6, the radius of curvature R1 in the portion (here, the first wall portion 53a) near the boundary point O1 between the upstream portion 51 and the downstream portion 52 is set. In comparison, the guide wall 53 is formed so that the radius of curvature R2 in the downstream portion (here, the second wall portion 53b) of the portion near the boundary point O1 is increased. Thereby, in this duct type indoor unit 1, the length L of the downstream portion 52 in the flow direction of the conditioned air can be reduced as much as possible while suppressing separation of the conditioned air from the guide wall 53. The turning angle of the wind direction can be increased. However, when it is not necessary to shorten the length L of the downstream portion 52 in the flow direction of the conditioned air, the radius of curvature of the guide wall 53 may be single.

<Modification>
In the air outlet structure of the duct-type indoor unit 1 of the above embodiment, the substantially rectangular convex portion 8 is adopted as the turbulent flow portion in a sectional view, but as shown in FIG. The shape may be a substantially rectangular shape with a rounded tip, or a substantially circular shape.

  Further, as shown in FIG. 8, as the turbulent flow portion, a dent portion 9 made of a dent formed on the surface on the guide wall 53 side of the upstream portion 51 may be employed instead of the convex portion 8. Here, as the cross-sectional shape of the recessed portion 9, various recessed shapes such as a bowl shape, a columnar shape, or a pyramid shape can be adopted. As a result, the conditioned air flowing along the guide wall 53 is turbulent by the generation of peeling bubbles (see F part in FIG. 8), and only by operating the protruding member 6 as in the case where the convex part 8 is adopted. The wind direction of the conditioned air can be reliably changed. And compared with the case where the convex-shaped part 8 is employ | adopted as a turbulent flow part, the increase in the pressure loss of conditioned air can further be suppressed.

  Furthermore, the turbulent flow portions do not need to have the same shape in the depth direction in a cross-sectional view. For example, as shown in FIG. 9, when the convex portion 8 is adopted, a sawtooth shape or a gap tooth shape or the like may be used in the depth direction. A plurality of dents may be arranged.

(2) 2nd Embodiment In the said 1st Embodiment and its modification, the blower outlet structure using the protrusion member 6 and the turbulent flow part (the convex-shaped part 8 or the recessed part 9) is employ | adopted for the duct type indoor unit 1. FIG. However, as shown in FIG. 10, an air outlet structure using the projecting member 6 and the turbulent flow portion (the convex portion 8 or the concave portion 9) may be employed in the ceiling suspended indoor unit 101. .

<Configuration>
The suspended ceiling type indoor unit 101 is installed on the ceiling surface of the air conditioning room, and is a unit for cooling and heating the air conditioning room. The ceiling suspended indoor unit 1 mainly includes a casing 102, a heat exchanger 103, and a blower fan 104.

  A suction port 102 a for sucking air in the air-conditioned room is formed in the rear part of the casing 102. A blower outlet 102b for blowing out conditioned air is formed at the front portion of the casing 102 so as to face substantially forward.

  The blower fan 104 is a sirocco fan and is disposed in the casing 102. The blower fan 104 is disposed on the upstream side of the heat exchanger 103 with respect to the air flow from the suction port 102a to the blower port 102b. The blower fan 104 sucks air into the casing 102 from the suction port 102a, and generates an airflow that blows out from the blowout port 102b. The blower fan 104 blows out the conditioned air generated in the heat exchanger 103 from the blower outlet 102 b through the blowout flow path 5.

  The heat exchanger 103 is a fin-and-tube heat exchanger having a substantially rectangular cross section, and is disposed in the casing 102. The heat exchanger 103 generates conditioned air by cooling the air sucked from the suction port 102a during cooling and heating it during heating.

  The blowout flow path 5 is a flow path for sending the conditioned air generated by the heat exchanger 103 to the blowout opening 102b. The blowout flow path 5 has an upstream part 51 and a downstream part 52 in a sectional view. The upstream portion 51 is a portion on the upstream side from the boundary points O1 and O2 between the upstream portion 51 and the downstream portion 52, similarly to the duct type indoor unit 1 of the first embodiment. However, here, unlike the upstream part 51 of the duct type indoor unit 1 of the first embodiment, the upstream part 51 has substantially the same flow path width. In addition, since the structure of the blowing flow path 5 except the upstream part 51 is the same as that of the blowing flow path 5 of the duct type indoor unit 1 of the said 1st Embodiment, description is abbreviate | omitted here.

  In addition, the ceiling-suspended indoor unit 101 is provided with a projecting member 6 that can project from the facing wall 54 into the blowout flow path 5 in the vicinity of the boundary point O2 between the upstream portion 51 and the downstream portion 52. Yes. Furthermore, on the surface of the upstream portion 51 on the guide wall 53 side, a turbulent flow portion (here, the convex portion 8) that turbulently flows the conditioned air flowing along the surface of the upstream portion 51 on the guide wall 53 side. Is provided. In addition, since the structure of the protrusion member 6 and a turbulent flow part is the same as that of the protrusion member 6 and the turbulent flow part of the duct type indoor unit 1 of the said 1st Embodiment, description is abbreviate | omitted here.

<Operation and features>
In the ceiling-suspended indoor unit 101 of the present embodiment, as in the duct-type indoor unit 1 of the first embodiment, it is preferable to blow out conditioned air in the horizontal direction during cooling. It is made not to protrude from the side, and the 2nd blowing state which is the wind direction X along the opposing wall 54 is obtained. Moreover, since it is preferable to blow out conditioned air vertically downward at the time of heating, the protruding member 6 is protruded from the opposing wall 54 side so that the first blowing state that is the wind direction Y along the guide wall 53 is obtained. .

  Also in such a ceiling suspended indoor unit 101 of the present embodiment, the same operational effects as those of the ducted indoor unit 1 of the first embodiment can be obtained. In addition, in FIG. 10, although the example which employ | adopted the convex-shaped part 8 as a turbulent flow part is shown in figure, the recessed part 9 may be employ | adopted as a turbulent flow part, and the said 1st As in the modified example of the embodiment, various shapes may be employed as the turbulent flow unit.

(3) Third Embodiment In the first and second embodiments and the modifications thereof, the air outlet structure using the protruding member 6 and the turbulent flow portion (the convex portion 8 or the concave portion 9) is a duct-type indoor unit. As shown in FIG. 11, the air outlet structure using the protruding member 6 and the turbulent flow portion (the convex portion 8 or the concave portion 9) is embedded in the ceiling. You may employ | adopt for the recessed type indoor unit 201. FIG.

<Configuration>
The ceiling-embedded indoor unit 201 is installed on the ceiling surface in the air conditioning room, and is a unit for cooling and heating the air conditioning room. The ceiling-embedded indoor unit 201 mainly includes a casing 202, a heat exchanger 203, and a blower fan 204.

  The casing 202 includes a casing main body 211 and a decorative panel 212 attached to the lower surface of the casing main body 211. A suction port 202a for sucking air in the air-conditioned room is formed in the approximate center of the decorative panel 212 in plan view. The decorative panel 212 is formed with an air outlet 202b for blowing out conditioned air so as to surround the air inlet 202a and face substantially downward.

  The blower fan 204 is a turbo fan and is disposed in the casing 202. The blower fan 204 is disposed on the upstream side of the heat exchanger 203 with respect to the air flow from the suction port 202a to the blowout port 202b. The blower fan 204 sucks air into the casing 202 from the suction port 202a and generates an airflow that blows out from the blowout port 202b. The blower fan 204 blows out conditioned air generated in the heat exchanger 203 from the blower outlet 202b through the blowout flow path 5.

  The heat exchanger 203 is a fin-and-tube heat exchanger having a substantially rectangular cross section, and is arranged in the casing 202 so as to surround the blower fan 204. The heat exchanger 203 generates conditioned air by cooling the air sucked from the suction port 202a at the time of cooling and heating at the time of heating.

  The blowout flow path 5 is a flow path for sending conditioned air generated by the heat exchanger 203 to the blowout opening 202b. The blowout flow path 5 has an upstream part 51 and a downstream part 52 in a sectional view. However, here, the configuration of the blowout flow path 5 is different in that the facing wall 54 is curved. Except for this point, the duct-type indoor unit 1 of the first and second embodiments or the Since it is the same as the blowout flow path 5 of the ceiling suspended indoor unit 101, the description thereof is omitted here.

  The ceiling-embedded indoor unit 201 has a projecting member 6 that can project into the outlet channel 5 from the opposing wall 54 side in the vicinity of the boundary point O2 between the upstream section 51 and the downstream section 52. Yes. Furthermore, on the surface of the upstream portion 51 on the guide wall 53 side, a turbulent flow portion (here, the convex portion 8) that turbulently flows the conditioned air flowing along the surface of the upstream portion 51 on the guide wall 53 side. Is provided. In addition, the structure of the protrusion member 6 and the turbulent flow part is the same as the structure of the protrusion member 6 and the turbulent flow part of the duct type indoor unit 1 and the ceiling suspended indoor unit 101 of the first and second embodiments. Therefore, the description is omitted here.

<Operation and features>
Unlike the duct-type indoor unit 1 and the ceiling-suspended indoor unit 101 of the first and second embodiments, the ceiling-embedded indoor unit 201 of the present embodiment is an air outlet 202b that faces substantially downward. The guide wall 53 is formed so as to extend from the lower direction toward the substantially horizontal direction, and the opposing wall 54 is formed so as to extend substantially in the lower direction. And since it is preferable to blow out conditioned air in the horizontal direction during cooling, the protruding member 6 is protruded from the opposing wall 54 side so that the first blowing state that is the wind direction Y along the guide wall 53 is obtained. . Moreover, since it is preferable that the conditioned air be blown vertically downward during heating, the projecting member 6 is not projected from the facing wall 54 side so that the second blowing state that is the wind direction X along the facing wall 54 is obtained. ing.

  Also in the ceiling-embedded indoor unit 201 of this embodiment, the same operational effects as those of the duct-type indoor unit 1 and the suspended ceiling indoor unit 101 of the first and second embodiments can be obtained. In addition, in FIG. 11, although the example which employ | adopted the convex-shaped part 8 as a turbulent flow part is shown in figure, you may employ | adopt the recessed part 9 as a turbulent flow part, and the said 1st As in the modified example of the embodiment, various shapes may be employed as the turbulent flow unit.

  The present invention can be widely applied to an air-conditioning apparatus outlet having an outlet passage for blowing out conditioned air.

DESCRIPTION OF SYMBOLS 1 Duct type indoor unit 5 Blowing flow path 6 Protruding member 8 Convex part (turbulent flow part)
9 dent (turbulent flow)
51 Upstream part 53 Guide wall 54 Opposite wall 101 Ceiling suspended indoor unit 201 Ceiling embedded indoor unit

Japanese Utility Model Publication No. 61-101314 Japanese Patent No. 4194487

Claims (4)

In the air outlet structure for an air conditioner provided with a blowout passage (5) for blowing out conditioned air,
In the sectional view, the outlet of the blowout flow path has a flow path width by forming a guide wall (53) having a large degree of curvature and an opposing wall (54) facing the guide wall and having a small degree of curvature. Is expanding,
The blowing channel is provided with a projecting member (6) that can be projected into the blowing channel from the opposite wall side,
It is located upstream of the projecting member in the outlet channel, and in the cross-sectional view, the channel width is reduced or a portion having substantially the same channel width is defined as the upstream portion (51) . In the case where the portion where the channel width is widened is the downstream portion (52), the flow of conditioned air flowing along the guide wall side surface of the upstream portion is formed on the surface of the upstream portion on the guide wall side. Turbulent parts (8, 9) for turbulent flow are provided,
A first blowing state in which the wind direction of the conditioned air is a wind direction along the guide wall only by switching between the protruding and non-projecting of the protruding member, and a second blowing in which the wind direction of the conditioned air is a wind direction along the opposing wall Can be switched between
The guide wall is convexly curved toward the outlet flow path side, and is more downstream than the curved portion near the boundary compared to the radius of curvature at the curved portion near the boundary between the upstream portion and the downstream portion. The length of the downstream portion in the flow direction is shortened so that the radius of curvature at the curved portion is increased and the guide wall is formed only by the radius of curvature at the curved portion on the downstream side. Formed,
Air outlet structure.   The turbulent flow section (8, 9) is upstream of the position where the flow path width starts to be expanded by the guide wall (53) and the opposing wall (54) in the blowing flow path, and on the guide wall side. The blower outlet structure of Claim 1 provided in the surface of this. The turbulent flow portion is a convex portion (8) that protrudes into the blowing channel (5) from the surface of the upstream portion (51) on the guide wall (53) side.
The air outlet structure according to claim 1 or 2. The turbulent flow portion is a dent portion (9) made of a dent formed on the surface of the upstream portion (51) on the guide wall (53) side.
The air outlet structure according to claim 1 or 2.

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