WO2011040519A1

WO2011040519A1 - Air conditioning device

Info

Publication number: WO2011040519A1
Application number: PCT/JP2010/067070
Authority: WO
Inventors: 正史鎌田; 亨繁澤; 隆造外島; 宜伸津村; 正弘柱尾
Original assignee: ダイキン工業株式会社
Priority date: 2009-09-30
Filing date: 2010-09-30
Publication date: 2011-04-07
Also published as: JP5011427B2; JP2011094948A

Abstract

The outlet flow path (5) of a wall-hung indoor unit (1) has, in a cross-sectional view thereof, an upstream section (51) and a downstream section (52) which has an expanding flow path width. The downstream section (52) has a guide wall (53) which is curved to a large extent and a facing wall (54) which faces the guide wall (53) and is curved to a small extent. The wall-hung indoor unit (1) is provided with a protrusion member (6) which can be caused to protrude to the inside of the outlet flow path (5) from the facing wall (54) side. The switching between a first blowing state in which conditioned air is caused to flow in the direction along the guide wall (53) and a second blowing state in which the conditioned air is caused to flow in the direction along the facing wall (54) is performed by switching the protrusion member (6) between a protruding state and a non-protruding state. The guide wall (53) is convex to the outlet flow path (5) side.

Description

Air conditioner

The present invention relates to an air conditioner, and more particularly, to a configuration for changing a wind direction in an air conditioner provided with a blow-out passage for blowing out conditioned air.

Conventionally, there is a wall-hanging type air conditioner as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2009-145008). This air conditioner has a flap for changing the wind direction in the vertical direction of the conditioned air blown out through the blowout flow path.

In the conventional air conditioner described above, in order to minimize the draft feeling to the user in the air-conditioned room, it is required to control the conditioned air to be blown out horizontally during cooling and to blow out the conditioned air vertically downward during heating. Has been.
However, since the above control request has a large turning angle in the vertical direction of the conditioned air, if this control request is performed by controlling the flap, the pressure loss of the conditioned air increases, and the shape of the flap, etc. can be improved. I need it. For this reason, the power consumption of the fan for blowing conditioned air increases, and the structure for changing the wind direction of conditioned air becomes complicated.
SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner equipped with a blow-off channel for blowing out conditioned air, while suppressing an increase in pressure loss of the conditioned air and a complicated structure for changing the direction of the conditioned air, while reducing the air direction of the conditioned air. The purpose is to ensure that the change can be made with a large turning angle.

An air conditioner according to a first aspect of the present invention is an air conditioner provided with a blow-off channel for blowing out conditioned air. The blow-off channel has an upstream part and a downstream part with an enlarged flow path width in a sectional view. is doing. The downstream portion includes a guide wall having a large degree of curvature and an opposing wall facing the guide wall and having a small degree of curvature. This air conditioner has a projecting member that can project into the outlet channel from the opposing wall side. In this air conditioning apparatus, the first blowing state in which the wind direction of the conditioned air is the wind direction along the guide wall and the wind direction of the conditioned air is the wind direction along the opposing wall by switching the projecting member to the projecting or non-projecting state. It is possible to switch between two blowout states. In addition, the guide wall is curved in a convex shape toward the outlet channel. Here, the “curvature” in the facing wall includes not only a curved shape but also a straight shape.
In this air conditioner, when the projecting member is not projected into the outlet channel from the opposing wall side, 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. 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 air conditioner, 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 peels from the opposing wall. It becomes easy to be done. For this reason, the conditioned air flowing from the upstream portion to the downstream portion tends to flow along the guide wall due to the Coanda effect, whereby the wind direction of the conditioned air becomes the first blowing state that is the wind direction along the guide wall. . And in the wind direction changing structure used for this air conditioner, since the projecting member as described above is used, it is difficult to affect the increase in the pressure loss of conditioned air, and the structure is simple. Compared to the wind direction change structure using the flaps of this type, it is possible to suppress the increase in the pressure loss of the conditioned air and the complexity of the structure for changing the conditioned air wind direction. Can be done at an angle.

In addition, since the guide wall has a large degree of curvature, the opposing wall has a small degree of curvature. Therefore, when the projecting member is not projected into the outlet channel from the opposing wall side, the conditioned air flows from the upstream portion to the downstream portion. However, it is difficult to peel off from the opposing wall, and the second blowing state is easily maintained. In addition, since the guide wall is convexly curved toward the outlet flow path side, when the protruding member is protruded into the outlet flow path from the opposing wall side, the conditioned air deflected in the direction of peeling from the opposing wall is It is easy to get along the guide wall and the first blowing state is easily obtained. For this reason, in the wind direction changing structure used for this air conditioner, since the above-mentioned blowing flow path is used, switching between the first blowing state and the second blowing state can be performed reliably.
Thus, in this air conditioning apparatus, it is possible to reliably change the wind direction of the conditioned air at a large turning angle while suppressing an increase in the pressure loss of the conditioned air and a complicated structure for changing the wind direction of the conditioned air. it can.

An air conditioner according to a second aspect of the present invention is the air conditioner according to the first aspect of the present invention, wherein the guide wall is larger than the radius of curvature at the portion near the boundary between the upstream portion and the downstream portion than at the portion near the boundary. The radius of curvature in the downstream portion is formed to be large.
Increasing the radius of curvature of the guide wall makes it easier for the conditioned air to adhere to the downstream side of the guide wall in the downstream portion, but the conditioned air is attracted to the guide wall by the Coanda effect without causing the protruding member to protrude. There is a possibility of being blown out. Further, the length of the downstream portion in the flow direction becomes longer. On the other hand, if the radius of curvature of the guide wall is reduced, the Coanda effect on the guide wall side when the projecting member is not projected is less likely to occur, so the switching between the first blowing state and the second blowing state can be performed reliably. And although the length of the flow direction of a downstream part becomes short, conditioned air becomes easy to peel from a guide wall as it goes downstream.

Therefore, in this air conditioner, the guide wall is formed so that the radius of curvature in the portion near the boundary between the upstream portion and the downstream portion is larger than the radius of curvature in the portion near the boundary. Yes.
As a result, in this air conditioner, it is possible to increase the turning angle of the conditioned air in the direction of flow while suppressing separation of the conditioned air from the guide wall, and to reduce the length of the downstream flow direction as much as possible. it can.

An air conditioner according to a third aspect is the air conditioner according to the first or second aspect, wherein the tangent line of the guide wall and the tangent line of the upstream portion connected to the guide wall at the boundary between the upstream portion and the downstream portion. Does not match.
If the tangent of the guide wall and the tangent of the upstream wall connected to the guide wall coincide with each other at the boundary between the upstream part and the downstream part, the conditioned air can be guided by the Coanda effect without projecting the projecting member. There is a possibility of being drawn into the wall and becoming the first blowout state. Further, the length of the downstream portion in the flow direction becomes longer.
Therefore, this air conditioner is configured such that the tangent of the guide wall does not coincide with the tangent of the upstream wall connected to the guide wall at the boundary between the upstream portion and the downstream portion.
Thereby, in this air conditioning apparatus, switching between the first blowing state and the second blowing state can be performed more reliably, and the length of the downstream conditioned air in the flow direction can be shortened.

An air conditioner according to a fourth aspect of the present invention is the air conditioner according to any one of the first to third aspects of the invention, wherein the projecting member is a boundary between the upstream portion and the downstream portion when projecting into the blowout flow path. It is provided to be arranged in the vicinity.
In this air conditioner, since the airflow direction of the conditioned air by the projecting member can be deflected from the vicinity of the boundary between the upstream portion and the downstream portion, the airflow direction of the conditioned air by the projecting member can be changed. Deflection in the direction of peeling from the facing wall can be reliably performed.
Thereby, in this air conditioning apparatus, the protrusion distance from the opposing wall side of a protrusion member can be made small, and the increase in the pressure loss of conditioned air can further be suppressed.

An air conditioner according to a fifth aspect of the present invention is the air conditioner according to any one of the first to fourth aspects of the present invention, wherein the outlet channel is upstream of the position where the protruding member protrudes into the outlet channel. A rectifying member is provided on the surface.
When the wind direction of the conditioned air in the upstream portion is inclined obliquely toward the guide wall with respect to the opposing wall, the conditioned air easily flows along the guide wall without causing the protruding member to protrude from the opposing wall. The wind direction of the conditioned air may become a wind direction close to the first blowing state. Further, when the flow velocity distribution of the conditioned air in the upstream portion is a flow velocity distribution in which the flow velocity on the facing wall side is small, even if the protruding member protrudes from the facing wall side, the conditioned air wind direction is separated from the facing wall. It is difficult to be deflected and the wind direction of the conditioned air may be close to the second blowing state. Thus, the change in the wind direction of the conditioned air by the protruding member may be insufficient due to the influence of the wind direction and flow velocity distribution of the conditioned air in the upstream portion.

Therefore, in this air conditioner, the rectifying member is provided in the outlet flow channel upstream of the position where the protruding member protrudes into the outlet flow channel.
Thus, in this air conditioner, the conditioned air can be rectified so that the air direction of the conditioned air is along the opposing wall and the velocity distribution of the conditioned air is a flow velocity distribution with less bias. The wind direction can be changed reliably.

It is sectional drawing of the wall-hanging type indoor unit as 1st Embodiment of the air conditioning apparatus concerning this invention. FIG. 18 is an enlarged view of a portion A in FIGS. 1, 9, and 12 to 17 and is a cross-sectional view showing a protruding member and its driving mechanism. It is a schematic diagram which shows the wind direction change structure using the protrusion member concerning this invention, Comprising: It is a figure which shows a 2nd blowing state. It is a schematic diagram which shows the wind direction change structure using the protrusion member concerning this invention, Comprising: It is a figure which shows a 1st blowing state. It is a schematic diagram which shows the wind direction change structure of the comparative example when the curvature degree of an opposing wall is enlarged, Comprising: It is a figure which shows the state which cannot control a 1st blowing state and a 2nd blowing state. It is a schematic diagram which shows the wind direction change structure of the comparative example in the case of increasing the degree of curvature of the opposing wall, and is a diagram showing a second blowing state (when projecting members are provided on the opposing wall side and the guide wall side). It is a schematic diagram which shows the wind direction change structure using the protrusion member concerning this invention, Comprising: It is a figure which shows a 1st blowing state (when the curvature radius of a guide wall is made into single and made small). It is a schematic diagram which shows the wind direction change structure using the protrusion member concerning this invention, Comprising: It is a figure which shows a 1st blowing state (when the curvature radius of a guide wall is made single and enlarged). It is a figure which shows the wall-hanging type indoor unit of the modification 1 of 1st Embodiment, Comprising: It is a figure equivalent to FIG. It is sectional drawing of the wall-hanging type indoor unit of the modification 2 of 1st Embodiment. It is a schematic diagram which shows the wind direction change structure using the protrusion member concerning this invention, Comprising: It is a figure which shows a 2nd blowing state (when a rectification | straightening member is provided). It is a schematic diagram which shows the wind direction change structure using the protrusion member concerning this invention, Comprising: It is a figure which shows a 1st blowing state (when a rectification member is provided). It is sectional drawing of the wall-hanging type indoor unit of the modification 3 of 1st Embodiment. It is sectional drawing of the wall-hanging type indoor unit of the modification 4 of 1st Embodiment. It is sectional drawing of the ceiling suspension type indoor unit as 2nd Embodiment of the air conditioning apparatus concerning this invention. It is sectional drawing of the ceiling suspended | suspended type indoor unit of the modification of 2nd Embodiment. It is sectional drawing of the ceiling embedded type indoor unit as 3rd Embodiment of the air conditioning apparatus concerning this invention. It is sectional drawing of the ceiling embedded type indoor unit of the modification of 3rd Embodiment. It is sectional drawing of the duct air conditioning system as 4th Embodiment of the air conditioning apparatus concerning this invention. It is sectional drawing of the duct air conditioning system of the modification of 4th Embodiment.

Hereinafter, an embodiment of an indoor unit as an air conditioner according to the present invention will be described based on the drawings.
(1) First Embodiment <Configuration>
FIG. 1 is a cross-sectional view of a wall-mounted indoor unit 1 as a first embodiment of an air conditioner 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 a schematic view showing a wind direction changing structure using the protruding member 6 and is a view showing a second blowing state. FIG. 4 is a schematic diagram showing a wind direction changing structure using the projecting member 6, and is a diagram showing a first blowing state.
The wall-hanging indoor unit 1 is installed on the wall surface of the air-conditioned room, and is a unit for cooling and heating the air-conditioned room. The wall-mounted indoor unit 1 mainly includes a casing 2, a heat exchanger 3, and a blower fan 4.

A suction port 2 a for sucking air in the air-conditioned room is formed in the upper part of the casing 2. A blower outlet 2b for blowing out conditioned air is formed in the lower part of the casing 2 so as to face substantially forward.
The heat exchanger 3 is a fin-and-tube heat exchanger having a substantially inverted V-shaped cross section, and is disposed in the casing 2. The heat exchanger 3 generates conditioned air by cooling the air sucked from the suction port 2a at the time of cooling and heating at the time of heating.
The blower fan 4 is a cross flow fan and is disposed in the casing 2. The blower fan 4 is disposed on the downstream side of the heat exchanger 3 with respect to the air flow from the suction port 2a to the blower port 2b. The blower fan 4 sucks air into the casing 2 from the suction port 2a and generates an airflow that blows out from the blower outlet 2b. The blower fan 4 blows out the conditioned air generated in the heat exchanger 3 from the blowout port 2 b through the blowout channel 5.

The blowout flow path 5 is a flow path for sending the conditioned air sent out by the blower fan 4 to the blowout port 2b. 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. Here, the channel width at the boundary between the upstream portion 51 and the downstream portion 52 is defined as a channel width H. Here, the upstream portion 51 has substantially the same flow path width.
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 surface 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 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 increased by a convex curve of the one side wall surface (in this case, the guide wall 53) to the outlet channel side in a cross-sectional view. .
Further, the wall-mounted indoor unit 1 has a projecting member 6 that can project from the facing wall 54 side into the blowout flow path 5 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. 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. Further, when the projecting member 6 projects into the blowout flow path 5, the most downstream portions of the projecting member 6 and the projecting hole 55 are located between the upstream portion 51 and the downstream portion 52. It arrange | positions so that it may be located in the boundary point O2. That is, here, the projecting member 6 is provided so as to be disposed in the upstream portion 51 when projecting into the blowout flow path 5.

<Operation>
The operation of the wall-mounted indoor unit 1 according to this embodiment will be described with reference to FIGS.
First, the wind direction changing structure of the wall-mounted indoor unit 1 of the present embodiment will be described.
In this wall-hanging indoor unit 1, conditioned air flowing from the upstream portion 51 to the downstream portion 52 adheres to the opposing wall due to inertia when the protruding member 6 is not protruded from the opposing wall 54 side into the blowout flow path 5. 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 in which the wind direction X is along the facing wall 54. On the other hand, in this wall-hanging indoor unit 1, when the protruding member 6 is protruded from the facing wall 54 into the blowout flow path 5, the air flow direction of the conditioned air flowing from the upstream portion 51 to the downstream portion 52 is caused by the protruding member 6. It tends to be deflected in the direction of peeling from the facing wall 54. Therefore, the conditioned air flowing from the upstream portion 51 to the downstream portion 52 tends to flow along the guide wall 53 due to the Coanda effect, whereby the wind direction of the conditioned air is the wind direction Y along the guide wall 53. 1 blows out.
Thus, in this wall-hanging indoor unit 1, the wind direction changing structure using the projecting member 6 is employed, and the wind direction of the conditioned air is changed along the guide wall 53 by switching the projecting member 6 to project or not project. It is possible to switch between a first blowing state where Y is set and a second blowing state where the wind direction of the conditioned air is set as the wind direction X along the facing wall 54.
In the wall-hanging indoor unit 1, it is preferable to blow out conditioned air in the horizontal direction during cooling. Therefore, the projecting member 6 is not projected from the facing wall 54 side, and the airflow direction X along the facing wall 54 is the first. Two blowing states are 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. .

<Features>
Features of the wall-mounted indoor unit 1 of the present embodiment will be described with reference to FIGS. Here, FIG. 5 is a schematic diagram illustrating a wind direction changing structure of a comparative example when the degree of curvature of the facing wall 54 is increased, and is a diagram illustrating a state in which the first blowing state and the second blowing state cannot be controlled. . FIG. 6 is a schematic diagram showing a wind direction changing structure of a comparative example when the degree of curvature of the opposing wall 54 is increased, and is a diagram showing a second blowing state (the protruding member 6 on the opposing wall 54 side and the guide wall 53 side). Is provided). FIG. 7 is a schematic diagram showing a wind direction changing structure using the projecting member 6 and showing a first blowing state (when the radius of curvature of the guide wall 53 is made single and small). FIG. 8 is a schematic view showing a wind direction changing structure using the projecting member 6 and showing a first blowing state (when the radius of curvature of the guide wall 53 is made single and large).
In this wall-hanging indoor unit 1, the protruding member 6 as described above is used as the airflow direction changing structure of the conditioned air blown out through the blowout flow path 5, so that it is difficult to affect the increase in the pressure loss of the conditioned air. Since the structure is simple, compared to the conventional wind direction changing structure using flaps, it is possible to suppress the increase in pressure loss of conditioned air and the complexity of the structure for changing the conditioned air wind direction. The wind direction of conditioned air can be changed at a large turning angle.
In addition, since the guide wall 53 has a large degree of curvature, the opposing wall 54 has a low degree of curvature. Therefore, when the projecting member 6 is not projected into the blowout flow path 5 from the opposing wall 54 side, the downstream side from the upstream portion 51 is provided. The conditioned air flowing into the portion 52 is difficult to peel off from the facing wall 54, and the second blowing state is easily maintained. Further, since the guide wall 53 is curved in a convex shape toward the outlet flow path 5 side, when the protruding member 6 is protruded from the opposing wall 54 side into the outlet flow path 5, the guide wall 53 is peeled off from the opposing wall 54. The deflected conditioned air is easy to follow along the guide wall 53, and the first blowing state is easily obtained.

Here, for example, as shown in FIG. 5, when the bending degree of the facing wall 54 is set to the same bending degree as that of the guide wall 53, the protruding member 6 is not protruded from the facing wall 54 side into the blowout flow path 5. When the conditioned air is along the opposing wall 54 (see the air flow shown by the broken line in FIG. 5) or along the guide wall 53 (see the air flow shown by the solid line in FIG. 5), it becomes impossible to control. . In order to prevent such a state, as shown in FIG. 6, it is necessary to provide the protruding member 6 on the opposing wall 54 and the guide wall 53 side, but this makes the structure complicated. For this reason, in the wind direction changing structure using the protruding member 6, the degree of bending of the guide wall 53 is increased and the degree of bending of the opposing wall 54 is decreased, and the guide wall 53 protrudes toward the outlet flow path 5. The curved point is important for reliably changing the direction of the conditioned air.
As described above, the wall-mounted indoor unit 1 reliably changes the wind direction of the conditioned air at a large turning angle while suppressing an increase in the pressure loss of the conditioned air and a complicated structure for changing the wind direction of the conditioned air. be able to.

Further, in this wall-hanging indoor unit 1, as shown in FIGS. 3 and 4, the curvature radius R1 in the portion near the boundary point O1 between the upstream portion 51 and the downstream portion 52 (here, the first wall portion 53a) 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 wall-hanging 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.
Here, for example, as shown in FIG. 8, when the curvature radius of the guide wall 53 is increased (in FIG. 8, the guide wall 53 is only the wall portion having the curvature radius R <b> 2), the conditioned air is guided in the downstream portion 52. Although it tends to adhere to the downstream side of the wall 53, even if the protruding member 6 is not protruded, there is a possibility that the conditioned air is attracted to the guide wall 53 due to the Coanda effect and enters the first blowing state. Further, the length L in the flow direction of the downstream portion 52 is increased.

On the other hand, as shown in FIG. 7, when the radius of curvature of the guide wall 53 is reduced (in FIG. 7, the guide wall 53 is only the wall portion of the radius of curvature R1), the guide wall 53 when the projecting member 6 is not projected. Since the Coanda effect is less likely to occur on the side, the switching between the first blowing state and the second blowing state can be performed reliably, and the length L in the flow direction of the downstream portion 52 is shortened, but on the downstream side As it goes, conditioned air becomes easy to peel off from the guide wall 53.
Therefore, in the wind direction changing structure using the projecting member 6, as shown in FIGS. 3 and 4, the portion near the boundary point O <b> 1 compared to the radius of curvature in the portion near the boundary point O <b> 1 between the upstream portion 51 and the downstream portion 52. The point that the guide wall 53 is formed so that the radius of curvature in the downstream portion is larger is a preferable configuration from the viewpoint of increasing the turning angle of the conditioned air while shortening the length of the downstream portion 52. Here, the radius of curvature of the guide wall 53 is changed in two stages of the first wall 53a (curvature radius R1) and the second wall 53b (curvature radius R2), but the radius of curvature is further increased in multiple stages. It may be changed.

Further, in the wall-hanging indoor unit 1, the protruding member 6 is provided so as to be disposed in the upstream portion 51 when protruding into the blowout flow path 5. Thus, the conditioned air wind direction by the protruding member 6 can be deflected in the direction of peeling from the opposing wall 54 from the vicinity of the boundary between the upstream portion 51 and the downstream portion 52. Can be reliably deflected in the direction of peeling from the opposing wall 54. In this wall-hanging indoor unit 1, the protruding distance h (see FIG. 4) of the protruding member 6 from the opposing wall 54 side can be reduced, and an increase in the pressure loss of conditioned air can be further suppressed. Note that the protruding member 6 protrudes into the outlet channel 5 from the viewpoint of causing the conditioned air to be deflected in the direction in which the conditioned air is separated from the opposing wall 54 from the vicinity of the boundary between the upstream portion 51 and the downstream portion 52. It is only necessary that it be arranged near this boundary.

<Modification 1>
In the wall-hanging indoor unit 1 (see FIGS. 1, 3 and 4) of the above embodiment, as shown in FIG. 9, the tangent line S of the guide wall 53 at the boundary point O1 between the upstream portion 51 and the downstream portion 52 You may comprise so that the tangent T of the wall surface of the upstream part 51 connected to the guide wall 53 may not correspond.
Thereby, in the wall-hanging indoor unit 1 of the present modification, the length L of the downstream portion 52 in the flow direction of the conditioned air can be shortened. In addition, in this modification, since the structure of the wall-hanging indoor unit 1 of the above embodiment is assumed, the curvature radius of the guide wall 53 is changed in multiple stages (here, two stages of the curvature radius R1 and the curvature radius R2). However, only the configuration in which the tangent line S of the guide wall 53 and the tangent line T of the wall surface of the upstream portion 51 connected to the guide wall 53 do not coincide with each other may be employed.

<Modification 2>
In the wall-mounted indoor unit 1 (see FIGS. 1, 3, 4, and 9) of the above embodiment and the modification 1 thereof, the wind direction of the conditioned air flowing from the upstream portion 51 to the downstream portion 52 is directed to the opposing wall 54. It is preferable that the wind direction is along, and the flow velocity distribution of the conditioned air flowing from the upstream portion 51 to the downstream portion 52 is preferably a non-biased flow velocity distribution.
However, in the wall-mounted indoor unit 1 of the above embodiment, as shown in FIG. 11, when the wind direction of the conditioned air Z in the upstream portion 51 is inclined obliquely toward the guide wall 53 with respect to the opposing wall 54. Even if the protruding member 6 does not protrude from the facing wall 54 side, the conditioned air tends to flow along the guide wall 53, and the wind direction of the conditioned air may be close to the first blowing state (that is, the wind direction Y). is there. Further, in the wall-mounted indoor unit 1 of the above embodiment, as shown in FIG. 12, when the flow velocity distribution of the conditioned air Z in the upstream portion 51 is a low flow velocity distribution on the opposite wall 54 side, the protruding member 6. Even if the air is projected from the opposing wall 54 side, the air direction of the conditioned air is difficult to be deflected in the direction separating from the opposing wall 54, and the air direction of the conditioned air may become a wind direction close to the second blowing state (ie, the air direction X) is there. As described above, in the wall-mounted indoor unit 1 of the above-described embodiment, the change in the conditioned air wind direction by the protruding member 6 may be insufficient due to the influence of the conditioned air wind direction and the flow velocity distribution in the upstream portion 51.

Therefore, in the wall-hanging indoor unit 1 of this modification, as shown in FIGS. 10, 11, and 12, the outlet channel 6 is located upstream of the position where the protruding member 6 protrudes into the outlet channel 5. The rectifying member 8 is provided on the front. Here, the rectifying member 8 is a plate-like member extending in a direction along the facing wall 54. A plurality of rectifying members 8 are arranged side by side in a cross-sectional view of the blowout flow path 5. In addition, since the other structure is the same as that of the wall-mounted indoor unit 1 of the said embodiment and its modification 1, it abbreviate | omits description here.
Thereby, in the wall-hanging indoor unit 1 of the present modification, rectification is performed so that the wind direction of the conditioned air in the upstream portion 51 is along the opposing wall 54 and the velocity distribution of the conditioned air is a flow velocity distribution with little bias. It is possible to change the wind direction of the conditioned air by the protruding member 6 with certainty.

<Modification 3>
In the above-described embodiment and the wall-mounted indoor unit 1 of the modified example 1 (see FIGS. 1, 3, 4, and 9), the air outlet 2b for blowing out conditioned air is formed in the casing 2 so as to face substantially forward. However, the air outlet 2b for blowing out conditioned air may be formed in the casing 2 so as to face substantially downward.
In the wall-hanging indoor unit 1 of this modification, as shown in FIG. 13, since the outlet 2b faces substantially downward, the guide wall 53 is formed so as to extend from the lower side to the substantially horizontal direction. The opposing wall 54 is formed so as to extend substantially downward. During cooling, in order to blow out conditioned air in a horizontal direction, the protruding member 6 is protruded from the facing wall 54 side, so that a first blowing state that is the wind direction Y along the guide wall 53 is obtained. Further, during heating, in order to blow out conditioned air vertically downward, the protruding member 6 is not protruded from the facing wall 54 side, so that a second blowing state that is the wind direction X along the facing wall 54 is obtained. .
In the wall-hanging indoor unit 1 of the present modification as described above, the same operational effects as those of the wall-hanging indoor unit 1 of the embodiment and the modification 1 can be obtained.

<Modification 4>
Further, in the wall-hanging indoor unit 1 (see FIG. 13) of the modification 3, as shown in FIG. 14, the rectifying member 8 is provided in the same manner as the wall-hanging indoor unit 1 (see FIG. 10) of the modification 2. Also good.
Also in the wall-hanging indoor unit 1 of this modification, the same operational effects as those of the wall-hanging indoor unit 1 of the modification 2 can be obtained.

(2) Second Embodiment In the first embodiment and the modification thereof, the wind direction changing structure using the protruding member 6 is adopted in the wall-mounted indoor unit 1, but as shown in FIG. You may employ | adopt for the ceiling direction hanging type | mold indoor unit 101 the wind direction change structure using.

<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. In addition, since the structure of the blowing flow path 5 is the same as that of the blowing flow path 5 of the wall-mounted indoor unit 1 of the said 1st Embodiment, description is abbreviate | omitted here.
The ceiling-suspended indoor unit 101 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 portion 51 and the downstream portion 52. Yes. In addition, since the structure of the protrusion member 6 and its periphery is the same as that of the protrusion member 6 of the wall-hanging type indoor unit 1 of the first embodiment and its periphery, the description thereof is omitted here.

<Operation>
In the ceiling-suspended indoor unit 101 of the present embodiment, as in the wall-mounted 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. .

<Features>
Also in the ceiling suspended indoor unit 101 of this embodiment, the same operational effects as those of the wall-hanging indoor unit 1 of the first embodiment can be obtained.

<Modification>
Further, in the ceiling-suspended indoor unit 101 (see FIG. 15) of the above embodiment, as shown in FIG. 16, as with the wall-hanging indoor unit 1 (see FIG. 10) of Modification 2 of the first embodiment, A rectifying member 8 may be provided.
In such a ceiling-suspended indoor unit 101 of this modified example, it is possible to obtain the same functions and effects as those of the wall-mounted indoor unit 1 of modified example 2 of the first embodiment.

(3) Third Embodiment In the first and second embodiments and the modifications thereof, the wind direction changing structure using the protruding member 6 is adopted for the wall-hanging indoor unit 1 and the ceiling suspended indoor unit 101. As shown in FIG. 17, a wind direction changing structure using the protruding member 6 may be employed in the ceiling-embedded indoor unit 201.

<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 104. 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. The structure of the blowout flow path 5 is different in that the facing wall 54 is curved. Except for this point, it is the same as the blowout flow path 5 of the wall-mounted indoor unit 1 of the first embodiment. Therefore, the description 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. In addition, since the structure of the protrusion member 6 and its periphery is the same as that of the protrusion member 6 of the wall-hanging type indoor unit 1 of the first embodiment and its periphery, the description thereof is omitted here.

<Operation>
In the ceiling-embedded indoor unit 201 of the present embodiment, as with the wall-hanging indoor unit 1 of the third modification of the first embodiment, the guide wall 53 is directed downward because it is the air outlet 202b facing substantially downward. And the opposing wall 54 is formed so as to extend substantially downward. 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.

<Features>
Also in the ceiling-embedded indoor unit 201 of this embodiment, the same operational effects as those of the wall-mounted indoor unit 1 and the ceiling-suspended indoor unit 101 of the first and second embodiments can be obtained.

<Modification>
In the ceiling-embedded indoor unit 201 (see FIG. 17) of the above embodiment, as shown in FIG. 18, the wall-hanging indoor unit 1 (see FIG. 10) of the second modification of the first embodiment and the above-mentioned The rectifying member 8 may be provided in the same manner as the ceiling-suspended indoor unit 101 (see FIG. 16) of the modification of the second embodiment.
Also in the ceiling-embedded indoor unit 201 of this modified example, the wall-hanging indoor unit 1 of the modified example 2 of the first embodiment and the suspended ceiling indoor unit 101 of the modified example of the second embodiment are also included. Similar effects can be obtained.

(4) Fourth Embodiment In the first to third embodiments and the modifications thereof, the wind direction changing structure using the projecting member 6 is used as the wall-hanging indoor unit 1, the ceiling suspended indoor unit 101, the ceiling embedded indoors. Although employed in the unit 201, as shown in FIG. 19, a wind direction changing structure using the protruding member 6 may be employed in a duct air-conditioning system 301 using a ceiling-embedded duct type indoor unit 301a.

<Configuration>
The duct air-conditioning system 301 is installed in a ceiling space in the air-conditioned room, and mainly includes a ceiling-embedded duct type indoor unit 301a, a blowout duct 301b, and a blowout unit 301c.
The ceiling-embedded duct-type indoor unit 301a is a unit for cooling and heating the air-conditioning room, which is installed in a ceiling space (shown by a two-dot chain line in FIG. 19) in the air-conditioning room. The ceiling-embedded duct type indoor unit 301a mainly includes a casing 302, a heat exchanger 303, and a blower fan 304.
A suction opening 302 a is formed in the rear portion of the casing 302 to be connected to a suction duct (not shown) and suck air in the air-conditioned room. A blow-out opening 302c for blowing out conditioned air is formed in the front portion of the casing 302 so as to face substantially forward.

The blower fan 304 is a sirocco fan and is disposed in the casing 302. The blower fan 304 is disposed on the upstream side of the heat exchanger 303 with respect to the air flow from the suction opening 302a to the blowout opening 302c. The blower fan 304 sucks air into the casing 302 from the suction opening 302a, and generates an airflow that blows out from the blowout opening 302c. The blower fan 304 blows out the conditioned air generated in the heat exchanger 303 from the blowout outlet 302b of the blowout unit 301c through the blowout flow path 5 formed by the blowout duct 301b connected to the blowout opening 302c and the blowout unit 301c.
The heat exchanger 303 is a fin-and-tube heat exchanger having a substantially rectangular cross section, and is disposed in the casing 302. The heat exchanger 303 generates conditioned air by cooling the air sucked from the suction opening 302a during cooling and heating the air during heating.

The blowout flow path 5 is a flow path for sending conditioned air generated by the heat exchanger 303 to the blowout opening 302b, and is formed by the blowout duct 301b and the blowout unit 301c as described above. That is, here, the blowout flow path 5 is formed not in the unit 301a in which the heat exchanger 303 and the blower fan 304 are housed, but in the blowout duct 301b and the blowout unit 301c connected to the downstream side thereof. The blowout flow path 5 has an upstream part 51 and a downstream part 52 in a sectional view. The upstream portion 51 is formed with a contracted flow portion 51a having a curved cross-sectional shape so that the conditioned air flows toward the downstream. The curved line of the contracted flow part 51a forms a sine curve or a cubic curve. Thus, the structure of the blowout flow path 5 is formed in the blowout duct 301b and the blowout unit 301c connected to the downstream side of the ceiling-embedded duct type unit 301a, and the upstream portion 51 has a contracted portion 51a. However, since these points are the same as the outlet channel 5 of the wall-mounted indoor unit 1 of the first embodiment, the description thereof is omitted here.

Further, the blowout unit 301c of the duct air-conditioning system 301 has a projecting member 6 that can project into the blowout flow path 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. ing. In addition, since the structure of the protrusion member 6 and its periphery is the same as that of the protrusion member 6 of the wall-hanging type indoor unit 1 of the first embodiment and its periphery, the description thereof is omitted here.

<Operation>
In the duct air-conditioning system 301 of the present embodiment, as in the wall-mounted indoor unit 1 of the first embodiment, it is preferable to blow out conditioned air in the horizontal direction during cooling, so that the protruding member 6 protrudes from the opposing wall 54 side. In this way, the second blowing state that is the wind direction X along the facing 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. .

<Features>
Also in the duct air conditioning system 301 of this embodiment, the same operational effects as those of the wall-mounted indoor unit 1 of the first embodiment can be obtained.

<Modification>
In the duct air-conditioning system 301 (see FIG. 19) of the above embodiment, as shown in FIG. 20, the rectifying member 8 is the same as the wall-mounted indoor unit 1 (see FIG. 10) of the second modification of the first embodiment. May be provided.
In such a duct air conditioning system 301 of this modification, the same effect as the wall-hanging indoor unit 1 of Modification 2 of the first embodiment can be obtained.

(5) Other Embodiments Although the embodiments of the present invention and the modifications thereof have been described with reference to the drawings, the specific configuration is not limited to these embodiments and the modifications thereof, and Changes can be made without departing from the scope of the invention.

<A>
In the said embodiment and its modification, the wind direction change structure using the protrusion member 6 is employ | adopted for the wall-hanging type indoor unit 1, the ceiling suspended type indoor unit 101, the ceiling embedded type indoor unit 201, and the duct air conditioning system 301. However, it is not limited to this, You may employ | adopt the wind direction change structure which used the protrusion member 6 for the air conditioning apparatus of another type, or an air conditioning system.
<B>
In the said embodiment and its modification, although the wind direction change structure using the protrusion member 6 is employ | adopted as a wind direction change structure of the up-down direction of conditioned air, it is not limited to this, As a wind direction change structure other than an up-down direction A wind direction changing structure using the protruding member 6 may be employed.
<C>
In the above embodiment and its modification, the rack / pinion type drive mechanism 7 is employed as the drive mechanism for driving the protruding member 6. However, the present invention is not limited to this, and other types of drive mechanisms are employed. May be.

<D>
In the said embodiment and its modification, although the wind direction change structure using the protrusion member 6 is employ | adopted for the air conditioning apparatus, it is employable also at the blower outlet of a duct.

The present invention can be widely applied to an air conditioner having a blow-out flow path for blowing out conditioned air.

1 Wall-mounted indoor unit (air conditioner)
DESCRIPTION OF SYMBOLS 5 Outflow flow path 6 Protruding member 8 Rectification member 51 Upstream part 52 Downstream part 53 Guide wall 54 Opposite wall 101 Ceiling suspended type indoor unit (air conditioner)
201 Ceiling-embedded indoor unit (air conditioner)
301 Duct air conditioning system (air conditioner)

JP 2009-145008 A

Claims

In the air conditioning apparatus provided with the blowout flow path (5) for blowing out conditioned air,
The blowout flow path has an upstream part (51) and a downstream part (52) in which the flow path width is enlarged in a cross-sectional view,
The downstream portion includes 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,
A projecting member (6) capable of projecting into the outlet channel from the opposing wall side;
A first blowing state in which the wind direction of the conditioned air is a wind direction along the guide wall and a second blowing state in which the wind direction of the conditioned air is a wind direction along the opposing wall by switching between the protruding and non-projecting of the protruding member. Can be switched to
The guide wall is curved in a convex shape toward the blowing channel side,
Air conditioner (1, 101, 201, 301).
The guide wall (53) has a larger radius of curvature in the downstream portion than the portion near the boundary, compared to the radius of curvature in the portion near the boundary between the upstream portion (51) and the downstream portion (52). The air conditioner (1, 101, 201, 301) according to claim 1, wherein the air conditioner is formed to be.
The boundary between the upstream part (51) and the downstream part (52), the tangent of the guide wall (53) and the tangent of the wall of the upstream part connected to the guide wall do not coincide with each other. The air conditioning apparatus described (1, 101, 201, 301).
The projecting member (6) is provided so as to be disposed in the vicinity of a boundary between the upstream portion (51) and the downstream portion (52) when projecting into the blowout flow path (5). The air conditioner (1, 101, 201, 301) according to any one of 1 to 3.
The rectifying member (8) is provided in the outlet channel (5) upstream of a position where the protruding member (6) protrudes into the outlet channel. An air conditioner (1, 101, 201, 301) according to any one of the above.