JP2013047584A - Air conditioning indoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning indoor unit capable of increasing an air-conditioned area by guiding cold air to a position apart from the other side end of a horizontal blade.SOLUTION: The indoor unit having at least a cooling function comprises a casing and the horizontal blade 30. A blow-out port is formed at the casing. The horizontal blade 30 adjusts the wind direction of conditioned air blown out of the blow-out port. Furthermore, the horizontal blade 30 includes a main face and an inclined face 32a. The main face is substantially flat. The inclined face 32a is positioned in the vicinity of the side end 30b of the horizontal blade 30. Furthermore, when cold air is blown out of the blow-out port sideways, the inclined face 32a functions as a face for obliquely upwardly orienting the cold air which is blown out sideways.

Description

  The present invention relates to an air conditioning indoor unit.

  2. Description of the Related Art Conventionally, some air conditioner indoor units include horizontal blades that can guide air blown from an air outlet toward the side as well as the front of the air conditioner indoor unit. For example, in an air-conditioning indoor unit disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 6-288605), from both upstream ends of a horizontal blade having a guide surface extending in a substantially horizontal direction, as a blowing air guide from the upstream side of the air flow. By providing elongated ribs extending so as to spread to the side of the horizontal blades toward the downstream side, the air blown from the outlet is guided not only forward but also to the side.

  By the way, cold air has a property of flowing downward. For this reason, like the horizontal blade | blade currently disclosed by patent document 1, when cold air was guided by the guide surface extended in a substantially horizontal direction except the blowing wind guide being provided, it was blown out from the blower outlet. The cold air flows along the guide surface of the horizontal blade and flows downward from its end surface. In this case, it is not possible to guide the cold air to a position distant from both end portions of the horizontal blade, and there is a possibility that the area on the side of the air conditioning indoor unit cannot be sufficiently air conditioned.

  Then, the subject of this invention is providing the air-conditioning indoor unit which can increase an air-conditionable area | region by guiding cold air to the position away from the side edge part of a horizontal blade | wing.

  An air conditioning indoor unit according to a first aspect of the present invention is an air conditioning indoor unit having at least a cooling function, and includes a casing and horizontal blades. An air outlet is formed in the casing. A horizontal blade | wing adjusts the wind direction of the conditioned air blown out from the blower outlet. The horizontal blade includes a main surface and an inclined surface. The main surface is substantially flat. The inclined surface is located near the side end of the horizontal blade. Further, the inclined surface is a surface for directing the cold air blown to the side obliquely upward when the cold air is blown to the side from the air outlet.

  In the air conditioning indoor unit pertaining to the first aspect of the present invention, the horizontal blade includes an inclined surface for directing the cold air blown laterally from the air outlet in the vicinity of the side end thereof. For this reason, the cold air blown to the side from the air outlet is guided obliquely upward from the side edge of the horizontal blade, and the cold air can be guided to a position away from the side edge of the horizontal blade. As a result, compared with the horizontal blade | wing which is not provided with the inclined surface, cold air can be made to reach | attain the area | region far from the side edge part of a horizontal blade | wing, which is a side area | region of an air conditioning indoor unit. Therefore, in this air conditioning indoor unit, the air-conditionable area can be increased by guiding the cold air to a position away from the side edge of the horizontal blade.

  The air conditioning indoor unit according to the second aspect of the present invention is the air conditioning indoor unit according to the first aspect, in which the inclined surface is a continuous curved surface. In this air conditioning indoor unit, since the inclined surface is a continuous curved surface, the cold air blown sideways from the air outlet can be smoothly flowed obliquely upward from the side edge of the horizontal blade by the Coanda effect. .

  The air conditioner indoor unit according to the third aspect of the present invention is the air conditioner indoor unit according to the second aspect, wherein the dimension in the longitudinal direction of the horizontal blade is longer than the dimension in the longitudinal direction of the outlet. Moreover, the inclined surface is located in the side rather than the longitudinal direction edge part of a blower outlet. In this air conditioning indoor unit, since the inclined surface is located on the side of the longitudinal end of the air outlet, the cold air blown sideways from the air outlet can be guided to the side.

  The air conditioning indoor unit according to the fourth aspect of the present invention is the air conditioning indoor unit according to the second aspect or the third aspect, wherein the curvature radius of the inclined surface is 10 mm or more. In this air conditioning indoor unit, since the radius of curvature of the inclined surface located in the vicinity of the side edge of the horizontal blade is 10 mm or more, the cold air blown sideways from the outlet is directed to the side from the side edge of the horizontal blade. Can be easily guided.

  The air conditioning indoor unit according to the fifth aspect of the present invention is the air conditioning indoor unit according to any one of the first to fourth aspects, wherein the width of the inclined surface is not less than 5 mm and not more than 30 mm. For this reason, in this air conditioning indoor unit, since the inclined surface has a certain width dimension, it is possible to make it easier for the cold air blown sideways from the outlet to be directed obliquely upward.

  In the air conditioning indoor unit according to the first aspect of the present invention, the air-conditionable area can be increased by guiding the cold air to a position away from the side edge of the horizontal blade.

  In the air conditioning indoor unit according to the second aspect of the present invention, the cold air blown sideways from the air outlet can be smoothly flowed upward from the side edge of the horizontal blade by the Coanda effect.

  In the air conditioner indoor unit according to the third aspect of the present invention, the cold air blown sideways from the air outlet can be guided to the side more.

  In the air conditioning indoor unit according to the fourth aspect of the present invention, it is possible to easily guide the cold air blown sideways from the air outlet toward the side from the side edge of the horizontal blade.

  In the air conditioning indoor unit pertaining to the fifth aspect of the present invention, it is possible to make it easier for the cold air blown sideways from the air outlet to go obliquely upward.

The external appearance perspective view of the indoor unit which concerns on embodiment of this invention. The elements on larger scale near the air outlet. The side view of an indoor unit. The figure for demonstrating the vertical blade | wing which takes a front blowing state. The figure for demonstrating the vertical blade | wing which takes a side blowing state. The figure which looked at the indoor unit from the lower side (bottom face side of the casing). (A) The figure which looked at the horizontal blade | wing from the guide surface side, (b) VII-VII sectional drawing of a horizontal blade | wing. The side view of a horizontal blade | wing. The perspective view which looked at the horizontal blade | wing from the guide surface side. It is sectional drawing of a horizontal blade | wing, Comprising: The elements on larger scale of the inclination part vicinity. The figure which shows the projection part vicinity of a horizontal blade | wing. The schematic sectional drawing of the indoor unit in the state where the horizontal blade took the operation stop posture. The schematic sectional drawing of the indoor unit of the state which the horizontal blade | blade took the horizontal blowing attitude | position. The schematic sectional drawing of the indoor unit in the state where the horizontal blade | blade took the downward blowing attitude | position. The schematic sectional drawing of the indoor unit in the state where the horizontal blade | blade took the upper blowing attitude | position. The control block diagram of the control part with which an air conditioner is provided. (A) The figure for demonstrating the flow of the cool air when the horizontal blower cooling mode is performed in the conventional indoor unit, (b) When the horizontal blown cooling mode is performed in the indoor unit according to the embodiment of the present invention The figure for demonstrating the flow of the cool air. It is a figure for demonstrating the flow of the cold air in case horizontal blown cooling mode is performed, (a) The figure which looked at the indoor unit from the front side, (b) The figure which looked at the indoor unit from the side, (C) The figure which looked at the indoor unit from the lower side. It is a figure for demonstrating the flow of a warm air in case the upper blowing heating mode is performed, (a) The figure which looked at the indoor unit from the front side, (b) The figure which looked at the indoor unit from the side, (C) The figure which looked at the indoor unit from the lower side.

  Hereinafter, an indoor unit 10 (corresponding to an air-conditioning indoor unit) according to an embodiment of the present invention will be described with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

(1) Schematic Configuration of Indoor Unit FIG. 1 is an external perspective view of the indoor unit 10 during operation. FIG. 2 is a partially enlarged view of the indoor unit 10 during operation. FIG. 3 is a side view of the indoor unit 10 when operation is stopped.

  The indoor unit 10 is a wall-hanging type indoor unit 10 that is attached to an indoor wall surface, and has a cooling function and a heating function. More specifically, the indoor unit 10 constitutes an air conditioner together with an outdoor unit 90 (see FIG. 16) installed outside, and can perform various operations including a cooling operation and a heating operation.

  Furthermore, the indoor unit 10 mainly includes a casing 11, vertical blades 20, horizontal blades 30, and a control unit 60 (see FIG. 16).

(1-1) Casing The casing 11 has a substantially rectangular shape that is long in the horizontal direction. The casing 11 houses an indoor heat exchanger, an indoor fan 14, a vertical blade 20, and the like. Furthermore, the inlet 11 and the blower outlet 13 are formed in the casing 11. The air inlet 12 is an opening for taking indoor air into the casing 11 and is formed in the upper part of the casing 11 (in the present embodiment, on the top surface 11a).

  The air outlet 13 is an opening for blowing the air conditioned in the casing 11 into the room, and is formed in the vicinity of the lower part of the indoor unit 10 so as to extend in the longitudinal direction (left-right direction) of the indoor unit 10. . Specifically, the air outlet 13 is formed on the bottom surface 11 b of the casing 11. Further, in the bottom surface 11b of the casing 11, the end portions (end sides) 13a, 11a in the vicinity of the blower outlet 13 in the longitudinal direction are curved smoothly curved as shown in FIG. Portions 11d and 11d are formed. The curved portions 11d and 11d are curved so as to follow the second surface 33c and the inclined surface 32a included in the protrusion 33 of the horizontal blade 30 described later.

  Further, an air flow path from the inlet 12 to the outlet 13 is formed in the casing 11. In this air flow path, an air filter, an indoor heat exchanger, an indoor fan 14, a vertical blade 20 and the like are arranged. In addition, as shown in FIG. 3, the air flow path includes a blowout flow path A that is a flow path portion from the indoor fan 14 to the blowout opening 13 via the vertical blade 20.

  The air filter is disposed on the upstream side of the indoor heat exchanger, and can remove dust from the indoor air taken into the casing 11.

  The indoor heat exchanger is composed of a heat transfer tube bent back at both ends in the longitudinal direction and a plurality of fins inserted into the heat transfer tube, and exchanges heat by contacting the indoor air sucked into the casing 11. Go to produce conditioned air. The indoor heat exchanger generates warm air as conditioned air by functioning as a condenser during heating operation, and generates cold air as conditioned air by functioning as an evaporator during cooling operation.

  The indoor fan 14 is a crossflow fan having an impeller that is rotationally driven by a motor. In addition, the indoor fan 14 sucks room air into the casing 11 from the suction port 12, passes the air filter and the indoor heat exchanger, and then forms an air flow that blows conditioned air out of the casing 11 from the air outlet 13. can do.

(1-2) Vertical Blade FIG. 4 is a view of a partial cross section in the vicinity of the air outlet 13 when the vertical blade 20 adopts a forward blowing state described later, as viewed from the front side of the indoor unit 10. FIG. 5 is a view of a partial cross section in the vicinity of the air outlet 13 when the vertical blade 20 is in a side blowing state described later, as viewed from the front side of the indoor unit 10.

  The vertical blade | wing 20 is arrange | positioned at the blowing flow path A as mentioned above, and adjusts the wind direction (air flow) of the left-right direction of the conditioned air which blows off from the blower outlet 13. As shown in FIG. Further, the vertical blade 20 is composed of a plurality of (two in this embodiment) vertical blade groups 21 and 21. The vertical blade groups 21 and 21 include a plurality of blades 22 arranged side by side in the longitudinal direction of the air outlet 13, a connecting rod 23 to which the plurality of blades 22 are connected, and a drive mechanism 24 that drives the connecting rod 23. Have When the drive mechanism 24 drives the connecting rod 23, the plurality of blades 22 connected by the connecting rod 23 simultaneously swing in the same direction. Specifically, as shown in FIG. 4, the surfaces 22 a of the plurality of blades 22 connected by the connecting rod 23 extend in a direction perpendicular to the longitudinal direction of the casing 11, or As shown, after swinging left or right with respect to the direction orthogonal to the longitudinal direction of the casing 11, it may stop at an arbitrary angle.

  In the following, for convenience of explanation, the state of the vertical blades 20 when the surfaces 22a of the plurality of blades 22 extend in a direction orthogonal to the longitudinal direction of the casing 11 is referred to as a forward blowing state. The state of the vertical blades 20 when the surfaces 22a of the plurality of blades 22 stop at an arbitrary angle after swinging to the left or right with respect to the direction orthogonal to the longitudinal direction of the casing 11 It is called a state.

  When the vertical blades 20 are in the forward blowing state, the conditioned air that has flowed through the blowout flow path A flows along the surface 22a of the blades 22 and is blown mainly toward the front (front side) of the blowout port 13. The Moreover, when the vertical blade | wing 20 takes a side blowing shape, the conditioned air which has flowed through the blowing flow path A flows along the surface 22a of the blade | wing 22, and the front (front side) and left-right side of the blower outlet 13 are carried out. Blown out. Therefore, when the vertical blades 20 have a side blowing shape, the conditioned air blowing area blown out from the blowout port 13 is expanded in the left-right direction compared to the case where the vertical blowing state is taken. Can be blown out from the air outlet 13 at a wide angle.

(1-3) Horizontal blade | wing FIG. 6 is the schematic of the indoor unit 10 seen from the bottom face side. 7, 8, and 9 are diagrams for explaining the configuration of the horizontal blade 30.

  The horizontal blades 30 are plate-like members extending in a substantially horizontal direction, and can cover substantially the entire outlet 13. Further, the horizontal blade 30 is driven so as to protrude outward with respect to the casing 11, and is blown out from the air outlet 13 by adopting a predetermined posture arranged on the downstream side of the air flow from the air outlet 13. Adjust the vertical air direction of the conditioned air. Here, in this embodiment, as shown in FIG. 6, since the dimension L2 in the longitudinal direction of the horizontal blade 30 is longer than the dimension L1 in the longitudinal direction of the outlet 13, the conditioned air blown out from the outlet 13. It is easy to regulate the flow of conditioned air so that is directed in a predetermined direction. Hereinafter, for convenience of explanation, a surface on the side of the horizontal blade 30 that restricts conditioned air blown out from the air outlet 13 is referred to as a guide surface 30a. Moreover, the guide surface 30a of the horizontal blade | wing 30 has the main surface part 31, the inclination part 32, and the projection part 33, as shown in FIG.7 and FIG.8.

  As shown in FIGS. 7 and 8, the main surface portion 31 is a portion that occupies the central region of the horizontal blade 30, and is mainly used when the horizontal blade 30 takes an operation stop posture described later. It is a part located so as to face the surface. The main surface portion 31 includes a substantially flat main surface 31 a having an area substantially the same as the opening area of the air outlet 13.

  As shown in FIGS. 7, 8, and 9, the inclined portion 32 is a portion that occupies the left and right side regions of the horizontal blade 30. In other words, the inclined portion 32 is located in the vicinity of the left and right side end portions 30b, 30b of the horizontal blade 30, that is, on the left and right side end portions 30b side of the horizontal blade 30 relative to the main surface portion 31. The inclined portion 32 includes an inclined surface 32a that is inclined with respect to the main surface 31a. The inclined surface 32a is a continuous curved surface provided so as to rise from the center side of the horizontal blade 30 toward the side end 30b, as shown in FIG. When the conditioned air is blown out from the air outlet 13 in the left-right direction, that is, to the side of the indoor unit 10, the inclined surface 32a is supplied to the inclined direction of the inclined surface 32a (the horizontal blades 30 extend). It is a surface for restricting in a diagonally upward direction). In addition, the inclined surface 32a is located on the side of the end portions 13a and 13a of the air outlet 13 in the plan view of the indoor unit 10. Moreover, the curvature radius of the inclined surface 32a should just be 10 mm or more, and the dimension of the width direction (left-right direction) of the inclined surface 32a should just be 5 mm or more and 30 mm or less.

  As shown in FIGS. 7, 8, and 9, the protrusion 33 is provided closer to the center of the horizontal blade 30 than the inclined portion 32. In addition, the protrusion 33 has a substantially triangular cross-section, the portion closest to the front end 30c of the horizontal blade 30 is the thickest, and gradually increases toward the rear end 30d of the horizontal blade 30. It is provided so that thickness may become small. Furthermore, the protrusion 33 includes a top 33a, a first surface 33b, and a second surface 33c, as shown in FIG. 11, which is a partially enlarged view of the vicinity of the protrusion 33.

  The top 33a is positioned on the side (outside in the left-right direction) of the end portions 13a and 13a of the outlet 13 when the indoor unit 10 in a state in which the horizontal blades 30 adopt the operation stop posture described later is viewed in plan. Yes. The first surface 33 b is an inclined surface extending from the top 33 a toward the center side of the horizontal blade 30. The second surface 33c is an inclined surface extending from the top 33a toward the inclined surface 32a, that is, toward the side end 30b of the horizontal blade 30. In the present embodiment, the first surface 33b and the second surface 33c are curved surfaces that are concavely curved. However, the present invention is not limited thereto, and may not be curved surfaces as long as they are inclined.

  Further, in the present embodiment, when the vertical blade 20 takes a forward blowing state and the horizontal blade 30 takes a horizontal blowing posture described later, the vertical blade 20 is disposed at the left and right end portions among the plurality of blades 22 of the vertical blade 20. An intersection line I1 between a virtual extension surface obtained by extending the surface 22a of the blade 22 toward the horizontal blade 30 and the guide surface 30a of the horizontal blade 30 is located on the center side of the horizontal blade 30 with respect to the top 33a, and is vertical. In a state where the blades 20 are in the side blowing state and the horizontal blades 30 are in the horizontal blowing posture described later, the surface 22a of the blades 22 arranged at the left and right end portions among the plurality of blades 22 of the vertical blades 20. The line I2 between the virtual extension surface extending toward the horizontal blade 30 and the guide surface 30a of the horizontal blade 30 is located closer to the side end 30b of the horizontal blade 30 than the top 33a (see FIG. 11). However, the present invention is not limited to this, and in a state where the vertical blades 20 are in the side blowing state and the horizontal blades 30 are in the horizontal blowing posture described later, the left and right end portions of the plurality of blades 22 of the vertical blades 20 are the most. An intersection line between a virtual extended surface obtained by extending the surface 22a of the blade 22 disposed toward the horizontal blade 30 and the guide surface 30a of the horizontal blade 30 may be located at the top 33a. Further, in a state where the vertical blades 20 are in the side blowing state and the horizontal blades 30 are in the horizontal blowing posture described later, the blades 22 arranged at least at the left and right ends of the plurality of blades 22 of the vertical blades 20. The line of intersection between the virtual extension surface extending the surface 22a toward the horizontal blade 30 and the guide surface 30a of the horizontal blade 30 is closer to the side end 30b of the horizontal blade 30 than the top 33a, or to the top 33a. For example, in the state where the vertical blades 20 are in the side blowing state and the horizontal blades 30 are in the horizontal blowing posture described later, one center side from the left and right end portions of the plurality of blades 22. The line of intersection of the virtual extension surface extending the surface 22a of the blade 22 arranged toward the horizontal blade 30 and the guide surface 30a of the horizontal blade 30 is the side edge 3 of the horizontal blade 30 rather than the top 33a. The b-side, or may be located at the top 33a.

  The conditioned air that has flowed from the blower outlet 13 toward the vicinity of the top 33a of the projection 33 has the second surface 33c while the first surface 33b prevents diffusion in the left-right direction (side). This promotes diffusion in the left-right direction (side).

  In addition, in this embodiment, in addition to the horizontal blade | wing 30, the auxiliary blade | wing 16 which regulates the flow of the conditioned air blown out from the blower outlet 13 is provided. The auxiliary blades 16 mainly regulate the conditioned air so that the conditioned air blown from the air outlet 13 is directed toward the guide surface 30 a of the horizontal blade 30.

  Further, as shown in FIG. 12, the predetermined posture of the horizontal blade 30 is an operation stop posture in which the air outlet 13 is closed, and as shown in FIG. 1, FIG. 2, and FIG. 13 to FIG. A horizontal blowing posture, a front blowing posture, a lower blowing posture, and an upper blowing posture in which the blower outlet 13 is opened are included.

  The operation stop posture is a posture in which the horizontal blades 30 are arranged so as to cover substantially the entire outlet 13 (see FIG. 12). In the present embodiment, when the horizontal blade 30 takes the operation stop posture, the vertical blade 20 is in a side blowing state so that the blade 22 of the vertical blade 20 does not collide with the horizontal blade 30 or the auxiliary blade 16. Shall be taken.

  The horizontal blowing posture is a posture in which the horizontal blades 30 are arranged substantially parallel to the opening surface of the blower outlet 13 in a state where the horizontal blade 30 protrudes to the front (front side) of the blower outlet 13 (FIG. 13). reference).

  As shown in FIGS. 1 and 2, the front blowing posture is a state in which the horizontal blade 30 protrudes to the front (front side) of the air outlet 13, and the rear end portion 30 d is more than the front end portion 30 c. It is an attitude that is arranged so as to be close to.

  As shown in FIG. 14, the downward blowing posture means that the front end 30c is closer to the outlet 13 than the rear end 30d in a state in which the horizontal blade 30 protrudes to the front (front side) of the outlet 13. It is a posture arranged so as to be inclined.

  As shown in FIG. 15, the upper blowing posture means that the rear end 30 d is at the blowout port as compared with the case where the horizontal blade 30 is pushed forward (front side) of the blowout port 13 and the lower blowing posture is adopted. 13 is a posture arranged to be away from 13.

  Further, the posture of the horizontal blade 30 is changed by a predetermined drive mechanism having a drive motor, and the changed posture is maintained. In the present embodiment, the posture of the horizontal blade 30 is changed by the drive mechanism 40 having a rack and pinion mechanism and the drive mechanism 50 having a link mechanism. Specifically, the support arms 41, 41, 41 (see FIG. 1) connected to the central portion of the horizontal blade 30 and the left and right side end portions 30b, 30b are inclined forward by the rack and pinion mechanism. It moves so as to extend downward (approach), or moves in the opposite direction to be stored. The swing arms 51, 51 connected to the central portion of the horizontal blade 30 constitute a link mechanism together with the rotating arms 52, 52, and swing when the rotating arms 52, 52 are driven. The arms 51, 51 swing, and the positions of the connecting portions 39, 39 between the swing arms 51, 51 and the horizontal blade 30 approach or leave the air outlet 13.

  Here, the positions of the connecting portions 39, 39 between the swing arms 51, 51 and the horizontal blade 30 are more horizontal than the straight line connecting the connecting portions 38, 38, 38 between the support arms 41, 41, 41 and the horizontal blade 30. Close to the rear end 30d of the blade 30. For this reason, the horizontal blade | wing 30 can be rotated by rotating the rotation arms 52 and 52. FIG. Moreover, the control part 60 mentioned later controls the horizontal blade | wing 30 in various attitude | positions by controlling the amount of protrusion of the support arms 41, 41, 41 by a rack and pinion mechanism, and the rotation angle of the horizontal blade | wing 30 in a link mechanism. Can be adopted.

  For example, when the rack and pinion mechanism is driven so that the protruding amounts of the support arms 41, 41, 41 are the same, the rotation arms 52, 52 move with respect to the movement of the support arms 41, 41, 41. By following the rotation, the horizontal blades 30 are moved in parallel, and the horizontal blades 30 take a horizontal blowing posture. Further, the rack and pinion mechanism is driven so that the support arms 41, 41, 41 protrude from the state in which the horizontal blades 30 are in the horizontal blowing posture, and the swing arms 51, 51 are moved to the rotating arms 52, 51. When the indoor unit 10 is rotated clockwise as viewed from the right side with respect to 52, the front end portion 30c of the horizontal blade 30 is moved below the rear end portion 30d, and the horizontal blade 30 takes a forward blowing posture. In addition, the rack and pinion mechanism is driven so that the support blades 41, 41, 41 move in the direction opposite to the direction in which the support arms 41, 41, 41 protrude from the state in which the horizontal blades 30 are in the horizontal blowing posture, and the swing arms 51, When 51 is rotated counterclockwise when the indoor unit 10 is viewed from the right side with respect to the rotation arms 52, 52, the rear end portion 30d of the horizontal blade 30 is moved below the front end portion 30c, and the horizontal blade 30 takes a downward blowing posture. Further, when the horizontal blade 30 is in the downward blowing posture, the swinging arms 51 and 51 are further rotated counterclockwise with respect to the rotation arms 52 and 52 when the indoor unit 10 is viewed from the right side. The rear end 30d of the horizontal blade 30 is moved further forward than the front end 30c, and the horizontal blade 30 takes the upward blowing posture.

(1-4) Control Unit As shown in FIG. 16, the control unit 60 is connected to various devices of the indoor unit 10 and the outdoor unit 90, and based on the operation command from the user via the remote controller 80. Operation control of various devices according to each operation such as cooling operation and heating operation is performed.

  Further, the remote controller 80 is provided with an operation mode selection switch that is operated when the user selects an operation mode such as cooling operation or heating operation, and a wind direction selection switch that is operated when the user selects the wind direction of conditioned air. ing. For example, when the cooling mode is selected by operating the operation mode selection switch by the user, the control unit 60 controls the driving of various devices so that cool air is blown out as conditioned air from the air outlet 13. To do. In addition, when the wind direction selection switch is pressed by the user and the wind direction is switched, the control unit 60 controls the driving of the drive mechanisms 24, 40, and 50 so that the wind direction selected by the user is obtained. The state of the vertical blades 20 and the posture of the horizontal blades 30 are switched.

  When the cooling mode is selected as the operation mode by the user and the front blowing is selected as the wind direction, the control unit 60 controls the drive of the drive mechanism 24 so that the state of the vertical blades 20 becomes the front blowing state, And the drive of the drive mechanisms 40 and 50 is controlled so that the horizontal blade | wing 30 takes a front blowing attitude | position. When the cooling mode is selected as the operation mode by the user and the side blowing is selected as the wind direction, the control unit 60 controls the drive of the drive mechanism 24 so that the state of the vertical blades 20 becomes the side blowing state. And the drive of the drive mechanisms 40 and 50 is controlled so that the horizontal blade | wing 30 takes a front blowing attitude | position. When the cooling mode is selected as the operation mode by the user and the horizontal blowing is selected as the wind direction, the control unit 60 controls the driving of the drive mechanism 24 so that the state of the vertical blades 20 becomes the side blowing state. And the drive of the drive mechanisms 40 and 50 is controlled so that the horizontal blade | wing 30 takes a horizontal blowing attitude | position. When the heating mode is selected as the operation mode by the user and the downward blowing is selected as the wind direction, the control unit 60 controls the driving of the drive mechanism 24 so that the state of the vertical blades 20 becomes the forward blowing state, And the drive of the drive mechanisms 40 and 50 is controlled so that the horizontal blade | wing 30 takes a downward blowing attitude | position. When the heating mode is selected as the operation mode by the user and the front blowing is selected as the wind direction, the control unit 60 controls the driving of the drive mechanism 24 so that the state of the vertical blades 20 becomes the front blowing state, And the drive of the drive mechanisms 40 and 50 is controlled so that the horizontal blade | wing 30 takes an upward blowing attitude | position.

(2) Flow of conditioned air blown out from air outlet Next, referring to the drawing, when the cooling mode is selected as the operation mode and the horizontal direction is selected as the wind direction by the user (hereinafter referred to as horizontal blowing cooling mode). ) And the flow of conditioned air when the heating mode is selected as the operation mode and the front blowing is selected as the wind direction (hereinafter referred to as the upper blowing heating mode).

(2-1) Flow of conditioned air in horizontal blown cooling mode FIG. 17 is a conceptual diagram showing the flow of cold air blown sideways from the air outlets 13 and 113. FIG. 18 is a diagram illustrating the flow of conditioned air when the horizontal blown cooling mode is executed.

  Here, before describing the flow of conditioned air when the horizontal blown cooling mode is executed in the indoor unit 10 of the present embodiment, the case where the same mode as the horizontal blown cooling mode is executed in the conventional indoor unit is described. The flow of conditioned air will be described. In the conventional indoor unit described below, the horizontal blade 130 has a plate shape in which the entire guide surface 130a is substantially flat without the inclined surface 32a and the protrusion 33 provided in the horizontal blade 30 of the present embodiment. The configuration is the same as that of the indoor unit 10 of the present embodiment except that it is a member. Therefore, in a conventional indoor unit, when a mode similar to the horizontal blown cooling mode in the present embodiment is executed, the cold air flowing toward the blowout port 113 is a surface 122a of the plurality of blades 122 inclined leftward or rightward. By being restricted by this, it flows so as to expand toward the side surface side of the casing, and is blown out of the casing from the air outlet 113.

  The cool air blown out from the air outlet 113 and reaching the horizontal blades 130 is regulated by the guide surfaces 130a of the horizontal blades 130. However, since the cool air has a property of moving downward as compared with the warm air, FIG. As shown in FIG. 6, when the side end portion 130b of the horizontal blade 130 is reached, the flow flows downward along the end surface 130e of the side end portion 130b. As a result, the cool air cannot reach a position away from the side end portion 130b of the horizontal blade 130, that is, a region on the side of the indoor unit.

  On the other hand, in the indoor unit 10 of the present embodiment, when the horizontal blown cooling mode is executed, that is, the vertical blades 20 are in the side blown state, and the horizontal blades 30 are in the horizontal blown posture. Thus, when the indoor fan 14 is driven, the cold air flowing toward the air outlet 13 is regulated by the surfaces 22a of the plurality of blades 22 inclined leftward or rightward as shown in FIG. Then, it flows so as to expand toward the side surface of the casing 11, and is blown out of the casing 11 from the blowout port 13. And the cold air blown out from the blower outlet 13 is controlled by the horizontal blade | wing 30 located ahead of the blower outlet 13, as shown in FIG. It flows toward. Here, since the dimension L2 in the longitudinal direction (left-right direction) of the horizontal blade 30 is longer than the dimension L1 in the longitudinal direction of the air outlet 13, the cold air blown out from the air outlet 13 to the side is restricted to the side. It is easy to do. In addition, the cool air has a property of moving downward as compared with the warm air, but in the vicinity of the left and right side end portions 30b and 30b of the horizontal blade 30 so as to rise from the center side toward the left and right side end portions 30b. The cold air blown out to the side due to the provided inclined surface 32a is regulated by the inclined surface 32a and goes obliquely upward with respect to the horizontal direction, so the cold air is left and right side end portions 30b of the horizontal blades 30. , 30b to a position away from the side. Thereby, compared to the conventional case, a more lateral air flow can be formed, so that the air flow is located away from the side end portions 30b, 30b of the horizontal blade 30, that is, in the region of the side of the indoor unit 10. Cold air can be reached.

  Here, the flow of the cool air when the vertical blade 20 is in the side blowing state and the horizontal blowing cooling mode in which the horizontal blade 30 is in the horizontal blowing posture is described. Even when the cooling mode is selected as the mode and the side blowing is selected as the wind direction, that is, when the vertical blades 20 are in the side blowing state and the horizontal blades 30 are in the front blowing posture, Since the cold air blown to the side from 13 can be regulated to be inclined obliquely upward with respect to the horizontal direction by the inclined surface 32a, the cold air is laterally moved from the left and right side end portions 30b, 30b of the horizontal blade 30. It is possible to guide to a position far away. Thus, when the cold air blows out from the air outlet 13 to the side, the inclined surface 32a makes it possible to move away from the side ends 30b, 30b of the horizontal blade 30 to the side, that is, the indoor unit. Cold air can reach 10 side regions.

(2-2) Flow of conditioned air during upper blown heating mode FIG. 19 is a diagram illustrating a flow of warm air when the upper blown heating mode is executed.

  In the indoor unit 10, when the indoor fan 14 is driven when the upper blowing / heating mode is executed, that is, with the vertical blades 20 taking the front blowing state and the horizontal blades 30 taking the upper blowing posture. The warm air flowing toward the air outlet 13 is regulated by the surfaces 22 a of the plurality of blades 22, so that it flows toward the front (front side) of the air outlet 13 and is blown out of the casing 11 from the air outlet 13. .

  Here, in a conventional indoor unit that includes horizontal blades that do not include an inclined surface, when a mode similar to the upper blown heating mode is executed, the warm air blown from the blower outlet and reaching the horizontal blades is guided to the horizontal blades. It is regulated by the surface and flows toward the front and the bottom of the indoor unit, but warm air has a property of moving upward compared to cold air, so when it reaches the side edge of the horizontal blade, it follows the end surface of the side edge. Therefore, there is a possibility that a short circuit is generated in which warm air is sucked into a suction port disposed above the blower outlet.

  On the other hand, in the indoor unit 10 of the present embodiment, the warm air that has reached the vicinity of the left and right side end portions 30b, 30b of the horizontal blade 30 is restricted obliquely downward, which is the inclination direction of the inclined surface 32a. The possibility of the occurrence of a circuit can be reduced.

  In addition, although the vertical blade | wing 20 took the front blowing state here, and demonstrated the flow of a warm air when the upper blowing heating mode in which the horizontal blade | wing 30 takes an upper blowing attitude | position was performed, the vertical blade | wing 20 is lateral. If there is a mode in which the blowing state is taken and the horizontal blades 30 are in the upward blowing posture, the warm air blown to the side from the outlet 13 is regulated by the inclined surface 32a and goes obliquely downward. It is possible to reduce the possibility of the occurrence of That is, when warm air is blown out from the air outlet 13, the warm air reaching the vicinity of the side end portions 30b, 30b of the horizontal blade 30 is regulated obliquely downward by the inclined surface 32a, thereby reducing the occurrence of short circuits. be able to.

(3) Features (3-1)
In this embodiment, when the conditioned air is blown out to the side of the indoor unit 10, the horizontal blade 30 has an inclined surface 32 a for directing the blown cold air in an obliquely upward direction that is the inclined direction of the inclined surface 32 a. Including. Further, the inclined surface 32 a is located at the side end portions 30 b and 30 b of the horizontal blade 30. For this reason, the cool air blown to the side from the air outlet 13 is directed obliquely upward by the inclined surface 32a, so that the cool air can be guided to a position farther from the side end portions 30b, 30b of the horizontal blade 30. As a result, compared with the conventional indoor unit provided with the horizontal blade | wing provided with the inclined surface, cold air can be made to reach | attain the area | region far from the side of an indoor unit.

  Thereby, the air-conditionable region can be increased by guiding the cold air to a position away from the side end portions 30b, 30b of the horizontal blade 30.

(3-2)
In the present embodiment, the inclined surface 32a is not a stepped shape like a rib, but a continuous curved surface provided so as to rise from the center side of the horizontal blade 30 toward the side end portion 30b. . For this reason, the cold air blown sideways from the blower outlet 13 can be smoothly flowed diagonally upward from the side end portions 30b, 30b of the horizontal blade 30 by the Coanda effect.

(3-3)
In the present embodiment, the dimension L2 in the longitudinal direction of the horizontal blade 30 is longer than the dimension L1 in the longitudinal direction of the outlet 13. For this reason, compared with the indoor unit in which the dimension in the longitudinal direction of the horizontal blade is the same as the dimension in the longitudinal direction of the outlet, the cold air blown out from the outlet 13 to the side is guided to the side. Is able to.

  Moreover, in this embodiment, when planarly viewing the indoor unit 10 in which the horizontal blades 30 are disposed so as to cover the air outlet 13, the inclined surface 32 a has an end portion 13 a on the side located in the longitudinal direction of the air outlet 13, It is located on the side of 13a. Thus, the cool air blown out from the outlet 13 to the vicinity of the side edges 30b, 30b of the horizontal blade 30 is separated from the side edges 30b, 30b of the horizontal blade 30 by restricting the cold air by the inclined surface 32a. Can guide you to the desired location.

(3-4)
In this embodiment, the curvature radius of the inclined surface 32a is 10 mm or more. For this reason, for example, compared with the case where the radius of curvature of the inclined surface is extremely small (for example, 1 mm), the cold air blown sideways from the blower outlet 13 is changed to the side end 30b of the horizontal blade 30, It is possible to easily guide further away in the direction (side) away from 30b.

(3-5)
In this embodiment, since the dimension of the inclined surface 32a in the width direction (left-right direction) is 5 mm or more, the cold air blown sideways from the air outlet 13 is easily inclined upward.

  Since the present invention can increase the air-conditionable area by guiding the cold air to a position away from the side edge of the horizontal blade, it is effective to be applied to an air-conditioning indoor unit that blows cold air from the outlet to the side. .

10 Indoor units (air conditioning indoor units)
11 Casing 13 Outlet 13a End 30 Horizontal blade 31a Main surface 30b Side end 32a Inclined surface

JP-A-6-288605

Claims (5)

An air conditioning indoor unit having at least a cooling function,
A casing (11) in which an air outlet (13) is formed;
A horizontal blade (30) for adjusting the wind direction of the conditioned air blown out from the air outlet;
With
The horizontal blade is located in the vicinity of a substantially flat main surface (31a) and the side end portions (30b, 30b) of the horizontal blade, and blows out to the side when cold air is blown out from the outlet. An inclined surface (32a) for directing the cooled air obliquely upward,
Air conditioning indoor unit (10). The inclined surface is a continuous curved surface,
The air conditioning indoor unit according to claim 1. The horizontal dimension (L2) of the horizontal blade is longer than the longitudinal dimension (L1) of the outlet,
The inclined surface is located on the side of the longitudinal end (13a, 13a) of the outlet.
The air conditioning indoor unit according to claim 2. The radius of curvature of the inclined surface is 10 mm or more,
The air conditioning indoor unit according to claim 2 or 3. The width of the inclined surface is 5 mm or more and 30 mm or less,
The air conditioning indoor unit according to any one of claims 1 to 4.

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