JP2012202663A - Air-conditioning indoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioning indoor unit capable of reducing the risk that a room is difficult to be cooled by the short circuit phenomenon in a wide angle blowout mode for blowing out cool air to both of the front and the side from a blowout port in a substantially horizontal direction.SOLUTION: The indoor unit is an indoor unit of a wall hanging type having a cooling function, and includes a casing 11 having the blowout port and a suction port positioned higher than the blowout port, a horizontal flap 25 capable of changing the direction of the cool air blown from the blowout port, blowout adjustment parts 50, 50 arranged in the vicinity of the blowout port, and a control part for executing the wide angle blowout mode for blowing the cool air from the blowout port to both of the front and the side in the substantially horizontal direction. The blowout adjustment parts 50, 50 obstruct blowout of the cool air to the substantially horizontal direction so that a blowout interruption area having a wind speed equal to or less than the prescribed wind speed is formed in the prescribed area around the blowout port in a plane view during execution of the wide angle blowout mode.

Description

  The present invention relates to a wall-hanging air conditioning indoor unit having a cooling function.

  2. Description of the Related Art Conventionally, in a wall-mounted air conditioning indoor unit having a cooling function, there is one that air-conditions a wide range of a room by simultaneously blowing cool air forward and sideward of an outlet. For example, the air conditioner disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2006-2984) is provided with outlets at the front lower part and the left and right sides, and the outlet at the lower front part is completely blocked by the vertical wind direction plate. However, it is configured to air-condition a wide range in the room by slightly opening the air and blowing air to the front and side of the air outlet at the same time.

  By the way, when air-conditioning a wide indoor area by simultaneously blowing cool air to the front and side of the air outlet during cooling, an air curtain that blows from the front of the air outlet to the side Form. And when the air outlet of the air conditioning indoor unit is above the suction port, the space is partitioned by the air curtain, so there is a short circuit phenomenon that makes it difficult for air below the air curtain to be sucked from the suction port. May occur. For this reason, it is difficult for the lower part of the air curtain to cool, and as a result, the room may be difficult to cool.

  Accordingly, an object of the present invention is to reduce the possibility of the room becoming difficult to cool due to the occurrence of a short circuit phenomenon in the wide-angle blowing mode in which cold air is blown out in a substantially horizontal direction both forward and laterally from the blowing outlet. It is to provide an air conditioner indoor unit that can perform.

  An air conditioning indoor unit according to a first aspect of the present invention is a wall-hanging air conditioning indoor unit having a cooling function, and includes a casing, a flap, a blowing adjustment unit, and a control unit. The casing is formed with a blowout port and a suction port located above the blowout port. The flap can change the wind direction of the cold air blown out from the outlet. The balloon adjustment unit is arranged around the balloon outlet. The control unit executes a wide-angle blowing mode in which cold air is blown out in a substantially horizontal direction both from the blowing outlet to the front and the side. In addition, when the wide angle blowing mode is executed, the blowing adjustment unit inhibits the blowing of cool air in a substantially horizontal direction so that a blowing interruption region is formed. The blowout interruption region is a region where the wind speed is equal to or lower than a predetermined wind speed in a predetermined region around the blowout port in plan view.

  In the air conditioning indoor unit pertaining to the first aspect of the present invention, the blowout interruption region is formed by the blowout adjustment unit when the wide-angle blowout mode is executed. For this reason, when an air curtain is formed in a predetermined area, the cool air below the air curtain is likely to flow upward from the blowout interruption area. Thereby, since cold air below the air curtain can be sucked in from the suction port, it is possible to reduce the possibility of the room becoming difficult to cool due to occurrence of a short circuit phenomenon.

  Here, the predetermined wind speed is a wind speed that is 50% of the average value of the wind speed at a position approximately 30 cm away from the outlet in a substantially horizontal direction, and more preferably at a position approximately 30 cm away from the outlet in a substantially horizontal direction. The wind speed is 25% of the average wind speed.

  Moreover, planar view means the state which looked at the air-conditioning indoor unit of the state installed in the indoor wall surface (side wall surface) from the upper side.

  In the air conditioning indoor unit according to the second aspect of the present invention, in the air conditioning indoor unit according to the first aspect, two or more blow-off regions are formed in a predetermined region. In this air conditioning indoor unit, since the blowout interruption region is formed at a plurality of locations, the air curtain is formed in a predetermined region, as compared with a case where only one interruption region is formed. The cool air below is more likely to flow upward from the blowout interruption region.

  In the air conditioning indoor unit according to the third aspect of the present invention, in the air conditioning indoor unit according to the first aspect or the second aspect, the cold air blown out from the air outlet flows downward in the substantially horizontal direction in the blowout interruption region. . In this air conditioning indoor unit, the blowout interruption region can be formed by the cool air flowing downward from the blowout port in a substantially horizontal direction.

  The air conditioner indoor unit according to a fourth aspect of the present invention is the air conditioner indoor unit according to the third aspect, wherein the flap includes a horizontal flap that can change the wind direction in the vertical direction of the cold air blown from the outlet. The blowout adjustment unit is a notch formed at the front of the horizontal flap. In this air conditioner indoor unit, the notch portion is formed in the horizontal flap because the front edge of the portion provided with the notch portion is located behind the air conditioner indoor unit in the front-rear direction of the air conditioner indoor unit. The cold air flowing from the portion that flows is lower than the cold air flowing from the other portion where the notch is not formed. As a result, the blowout interruption region can be formed.

  An air conditioning indoor unit according to a fifth aspect of the present invention is the air conditioning indoor unit according to the fourth aspect, wherein the notch portion is cut diagonally from a predetermined position at the front end of the horizontal flap toward the side end of the horizontal flap. It is formed by lacking. In this air conditioner indoor unit, the notch portion is formed in the horizontal flap because the front edge of the portion provided with the notch portion is located behind the air conditioner indoor unit in the front-rear direction of the air conditioner indoor unit. The cold air flowing from the portion that flows is lower than the cold air flowing from the other portion where the notch is not formed. As a result, the blowout interruption region can be formed.

  The air conditioning indoor unit according to the sixth aspect of the present invention is the air conditioning indoor unit according to the third aspect, wherein a flow path through which cool air sucked from the suction port and blown from the blowout port is formed in the casing. Moreover, a blower adjustment part is a recessed part formed so that the blower outlet front vicinity vicinity may be expanded among flow paths. In this air conditioner indoor unit, since the horizontal flap cannot sufficiently regulate the cool air blown from the blow-out opening due to the formation of the recess in the flow path, the cool air flows downward. As a result, the blowout interruption region can be formed.

  The air conditioner indoor unit according to a seventh aspect of the present invention is the air conditioner indoor unit according to the third aspect, wherein the flap includes a horizontal flap that can change the vertical wind direction of the cold air blown out from the outlet. Further, the blowout adjustment portion is a curved portion or a concave portion of the horizontal flap. The curved portion is formed to bend downward from the front end portion or the side end portion of the horizontal flap. The recess is formed so as to be recessed downward at the front portion of the horizontal flap. In this air conditioning indoor unit, the cold air blown from the blowout port is regulated by the curved portion or the concave portion and flows downward from the substantially horizontal direction, so that a blowout interruption region can be formed.

  The air conditioning indoor unit according to the eighth aspect of the present invention is the air conditioning indoor unit according to the first aspect or the second aspect, in which the blowout adjustment unit shields cold air blowout from a predetermined portion of the blowout port. In this air conditioning indoor unit, the blowout interruption region can be formed by shielding the blowout of cold air from a predetermined portion of the blowout port.

  An air conditioning indoor unit according to a ninth aspect of the present invention is a wall-hanging air conditioning indoor unit having a cooling function, and includes a casing, a flap, and a control unit. The casing is formed with a blowout port and a suction port located above the blowout port. The flap can change the wind direction of the cold air blown out from the outlet. The control unit controls the drive of the flap so that the blowout interruption region is formed when the cold air is blown out in a substantially horizontal direction from both the blowout opening and the side. The blowout interruption region is a region where the wind speed is equal to or lower than a predetermined wind speed in a predetermined region around the blowout port in plan view.

  In the air conditioning indoor unit pertaining to the ninth aspect of the present invention, when the cool air is blown out in the substantially horizontal direction both forward and laterally from the blowout port, the drive of the flap is controlled so that the blowout interruption region is formed. The For this reason, when an air curtain is formed in a predetermined area, the cool air below the air curtain is likely to flow upward from the blowout interruption area. Thereby, since cold air below the air curtain can be sucked in from the suction port, it is possible to reduce the possibility of the room becoming difficult to cool due to occurrence of a short circuit phenomenon.

  Here, the predetermined wind speed is a wind speed that is 50% of the average value of the wind speed at a position approximately 30 cm away from the outlet in a substantially horizontal direction, and more preferably at a position approximately 30 cm away from the outlet in a substantially horizontal direction. The wind speed is 25% of the average wind speed.

  Moreover, planar view means the state which looked at the air-conditioning indoor unit of the state installed in the indoor wall surface (side wall surface) from the upper side.

  The air conditioner indoor unit according to the tenth aspect of the present invention is the air conditioner indoor unit according to the ninth aspect, wherein two or more blow-off regions are formed in a predetermined region. In this air conditioning indoor unit, a plurality of blowout interruption areas are formed, and therefore, when an air curtain is formed in a predetermined area, compared to a case where only one interruption area is formed, the air curtain Also, the lower cool air is likely to flow upward from the blowout interruption region.

  An air conditioning indoor unit according to an eleventh aspect of the present invention is the air conditioning indoor unit according to the ninth aspect or the tenth aspect, wherein the flap includes a plurality of vertical flaps. The plurality of vertical flaps change the wind direction in the left-right direction of the cold air blown from the outlet. In this air conditioning indoor unit, the blowout interruption region can be formed by controlling the driving of the plurality of vertical flaps.

  The air conditioning indoor unit pertaining to a twelfth aspect of the present invention is the air conditioning indoor unit pertaining to the ninth aspect or the tenth aspect, wherein the flap includes a plurality of horizontal flaps. The plurality of horizontal flaps change the vertical wind direction of the cold air blown out from the outlet. In this air conditioning indoor unit, the blowout interruption region can be formed by controlling the driving of the plurality of horizontal flaps.

  In the air conditioner indoor unit according to the first aspect of the present invention, it is possible to reduce the possibility of the room becoming difficult to cool due to the occurrence of a short circuit phenomenon.

  In the air conditioning indoor unit according to the second aspect of the present invention, when an air curtain is formed in a predetermined area, the cool air below the air curtain is likely to flow upward from the blowout interruption area.

  In the air conditioning indoor unit according to the third aspect of the present invention, the blowout interruption region can be formed by the cool air flowing downward from the blowout port in the substantially horizontal direction.

  In the air conditioner indoor unit according to the fourth aspect of the present invention, the cold air flowing from the portion where the notch is formed flows downward compared to the cold air flowing from the other portion where the notch is not formed. A discontinuous region can be formed.

  In the air conditioning indoor unit pertaining to the fifth aspect of the present invention, the cold air flowing from the portion where the notch is formed flows downward compared to the cold air flowing from the other portion where the notch is not formed. A discontinuous region can be formed.

  In the air conditioning indoor unit pertaining to the sixth aspect of the present invention, since the cold air can flow downward by forming the recess in the flow path, it is possible to form a blowout interruption region.

  In the air conditioning indoor unit pertaining to the seventh aspect of the present invention, the cold air blown out from the blowout port is regulated by the curved portion or the concave portion and flows downward from the substantially horizontal direction, thereby forming a blowout interruption region. it can.

  In the air conditioning indoor unit pertaining to the eighth aspect of the present invention, the blowout interruption region can be formed by shielding the cold air blowout from a predetermined portion of the blowout port.

  With the air conditioning indoor unit pertaining to the ninth aspect of the present invention, it is possible to reduce the risk of the room becoming difficult to cool due to the occurrence of a short circuit phenomenon.

  In the air conditioning indoor unit pertaining to the tenth aspect of the present invention, when an air curtain is formed in a predetermined area, cold air below the air curtain tends to flow upward from the blowout interruption area.

  In the air conditioning indoor unit pertaining to the eleventh aspect of the present invention, the blowout interruption region can be formed by controlling the driving of the plurality of vertical flaps.

  In the air conditioning indoor unit pertaining to the twelfth aspect of the present invention, the blowout interruption region can be formed by controlling the driving of the plurality of horizontal flaps.

The external appearance perspective view of the indoor unit which concerns on 1st Embodiment of this invention. The external appearance perspective view of the indoor unit which concerns on 1st Embodiment of this invention. The schematic longitudinal cross-sectional view of an indoor unit. The partial schematic of the blower outlet vicinity. The partial schematic of the lower right part of an indoor unit. The control block diagram of the control part with which an indoor unit is provided. The figure which looked at the conventional indoor unit from the upper part. The figure which looked at the indoor unit from the upper part. The figure for demonstrating the wind speed of an interruption area | region. It is the figure which looked at the indoor unit from the top, Comprising: The figure for demonstrating the case where a discontinuous area | region is formed in the side of an indoor unit. It is the figure which looked at the indoor unit from the top, Comprising: The figure for demonstrating the case where a discontinuous area | region is formed ahead of an indoor unit. The partial schematic diagram of the blower outlet vicinity of the indoor unit which concerns on the modification 1A. The longitudinal cross-sectional view of the indoor unit which concerns on the modification 1A. The figure which looked at the indoor unit concerning modification 1A from the lower part. The figure which looked at the indoor unit concerning modification 1A from the upper part. The figure which looked at the indoor unit concerning modification 1B from the lower part. The figure which looked at the indoor unit concerning modification 1B from the lower part. The figure which looked at the indoor unit concerning modification 1B from the lower part. The figure which looked at the indoor unit concerning modification 1B from the upper part. The figure which looked at the indoor unit concerning modification 1B from the upper part. The figure which looked at the indoor unit concerning modification 1B from the lower part. (A) The schematic longitudinal cross-sectional view of the conventional indoor unit, (b) The schematic longitudinal cross-sectional view of the indoor unit which concerns on the modification 1C. The schematic longitudinal cross-sectional view of the indoor unit which concerns on modification 1D. The general | schematic follower sectional view of the indoor unit which concerns on modification 1D. The figure which looked at the indoor unit concerning modification 1E from the lower part. The side view of the indoor unit which concerns on the modification 1E. The schematic longitudinal cross-sectional view of the indoor unit which concerns on 2nd Embodiment of this invention. The control block diagram of the control part with which an indoor unit is provided. The figure which looked at the indoor unit from the upper part. The schematic longitudinal cross-sectional view of the conventional indoor unit. The figure which looked at the conventional indoor unit from the upper part. The schematic longitudinal cross-sectional view of the indoor unit which concerns on the modification 2A.

  Hereinafter, an indoor unit 10 according to a first 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.

<First Embodiment>
(1) Configuration of Air Conditioning Indoor Unit FIG. 1 is an external perspective view of the indoor unit 10 when operation is stopped. FIG. 2 is an external perspective view of the indoor unit 10 during operation.

  The indoor unit 10 is a wall-hanging indoor unit that is attached to the wall W surface of the room (see FIGS. 1 and 2). The indoor unit 10 has a cooling function, and constitutes an air conditioner together with an outdoor unit 90 (see FIG. 6) installed outside, and various operations including a cooling operation and a heating operation are performed. .

  Furthermore, the indoor unit 10 mainly includes a casing 11, a flap (see FIG. 3) 20, side shielding members 30 and 30, blowout adjustment units (see FIG. 3) 50 and 50, and a control unit (see FIG. 6). 60).

(1-1) Casing As shown in FIGS. 1, 2, and 3, the casing 11 is a substantially rectangular member that is long in the horizontal direction. The casing 11 houses an indoor heat exchanger, an indoor fan 19, a vertical flap 21 described later, and the like. Further, the casing 11 is formed with a suction port 12 and a blowout port 13. The suction port 12 is an opening for taking indoor air into the inside of the casing 11, and is formed in the upper part of the casing 11 (in the top surface in the present embodiment).

  The air outlet 13 is an opening for blowing 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 left-right direction of the indoor unit 10. Specifically, the air outlet 13 is formed continuously from the bottom surface of the casing 11 to both side surfaces. In the present embodiment, the air outlet 13 is continuously formed from the bottom surface of the casing 11 to both side surfaces. However, the present invention is not limited to this, and the air outlet is continuously formed from the front surface of the casing to both side surfaces. May be. Further, the air outlet is not formed continuously from the bottom surface of the casing 11 to both side surfaces, and may be formed separately on the bottom surface and both side surfaces of the casing.

  An air flow path A extending from the suction port 12 to the blowout port 13 is formed in the casing 11. In the air flow path A, an indoor fan 19, an indoor heat exchanger, a plurality of vertical flaps 21 and the like are arranged. Further, the air flow path A includes a blowout flow path B that is a flow path portion from the indoor fan 19 to the blowout opening 13 via the vertical flap 21.

  The indoor heat exchanger includes a heat transfer tube that is bent back and forth at both ends in the longitudinal direction and a plurality of fins that are inserted through the heat transfer tube, and performs heat exchange between the air that contacts the heat transfer tube. The indoor heat exchanger functions as a condenser during heating operation and functions as an evaporator during cooling operation.

  The indoor fan 19 is a crossflow fan having a motor and an impeller that is rotationally driven by the motor. The indoor fan 19 may form an air flow that blows out conditioned air from the air outlet 13 to the outside of the casing 11 after sucking indoor air into the casing 11 from the air inlet 12 and passing through the indoor heat exchanger. it can.

(1-2) Flap The flap 20 can change the air direction of the air blown out from the outlet 13 and has a plurality of flaps 21 and 25. The plurality of flaps 21 and 25 include a plurality of vertical flaps 21 and one or more horizontal flaps 25.

  The plurality of vertical flaps 21 are arranged in the blowing channel B as described above. The plurality of vertical flaps 21 are connected by a connecting rod (not shown), and the connecting rod is driven by a predetermined driving mechanism (see FIG. 6) 22 having one or a plurality of driving motors. When the connecting rod is driven by the drive mechanism 22, the plurality of connected vertical flaps 21 simultaneously swing in the same direction. Specifically, the surfaces of the plurality of connected vertical flaps 21 swing left or right around a state perpendicular to the longitudinal direction of the casing 11. And the vertical flap 21 adjusts the blowing direction of the conditioned air in the left-right direction of the indoor unit 10 by swinging or stopping at an arbitrary angle after swinging.

  The horizontal flap 25 is a plate-like member that is long in the left-right direction of the indoor unit 10. Further, the horizontal flap 25 is disposed at the lower part of the indoor unit 10. Specifically, the horizontal flap 25 is disposed so as to be able to cover substantially the entire opening formed on the bottom surface of the casing 11 at the outlet 13. In the present embodiment, the indoor unit 10 includes one horizontal flap 25, but is not limited thereto, and may include a plurality of horizontal flaps.

  Moreover, the horizontal flap 25 adjusts the blowing direction of the adjustment air in the vertical direction of the indoor unit 10 by taking a predetermined posture. The horizontal flap 25 is driven by a predetermined drive mechanism 26 having a drive motor (for example, a drive mechanism having a rack / pinion mechanism, a link mechanism, etc.) 26, and the posture is changed. Posture is maintained.

  Further, the predetermined posture of the horizontal flap 25 includes a wide angle posture (see FIG. 4). The wide-angle posture is a posture of the horizontal flap 25 arranged substantially parallel to the front portion 14 of the blowout port 13 when the portion covered by the horizontal flap 25 in the blowout port 13 is the front portion 14 of the blowout port 13. That is. When the horizontal flap 25 takes a wide-angle posture, the air blown out from the front portion 14 of the outlet 13 is regulated by the horizontal flap 25 so that it is substantially horizontal to the front, rear and both sides of the indoor unit 10. Blown in the direction.

(1-3) Side Shielding Member The side shielding members 30 and 30 are members that can cover the opening portion formed mainly on the side surface of the casing 11 at the outlet 13. Are arranged at the lower left and right sides (see FIGS. 1 and 2). Further, when the portions covered by the side shielding members 30, 30 in the outlet 13 are the side portions 15, 15 of the outlet 13, the side shielding members 30, 30 cover the side portions 15, 15. It is possible to take the closed state in which it is positioned and the open state in which the side surfaces 15 and 15 are opened. Further, the side shielding members 30 and 30 are driven by a predetermined drive mechanism (see FIG. 6) 31 having a drive motor, so that the state is switched and the switched state is maintained.

  The indoor unit 10 according to the present embodiment includes the side shielding members 30 and 30, but is not limited thereto, and does not include the side shielding member, and is formed on the side surface of the casing at the outlet. The opening portion that is open may always be open.

(1-4) Blowout adjustment unit The blowout adjustment units 50 and 50 are air that extends from the front of the indoor unit 10 to the side when air is blown out substantially horizontally from the blowout port 13 to both the front and side. In order to prevent the curtain from being formed, the blowing of cool air in the substantially horizontal direction is hindered. More specifically, the blowing adjustment units 50 and 50 are plate-like members different from the flap 20 and the side shielding members 30 and 30, and are arranged around the blowing outlet 13. Specifically, the blowing adjustment units 50 and 50 are disposed in the vicinity of the front part of the blowing channel B and in the vicinity of both ends of the front part 14 of the blowing port 13 (see FIG. 3).

  Further, the blowing adjustment units 50 and 50 adopt a storage state stored in the casing 11 and a protruding state in which it is pushed out from the casing 11 through the blowing port 13. Note that the blowing adjustment units 50 and 50 are driven by a drive mechanism 51 having a drive motor (for example, a drive mechanism having a rack / pinion mechanism, a link mechanism, or the like) 51 to switch between a storage state and a push-out state. It is done. In addition, when the blowing adjustment units 50 and 50 are in the projecting state, the blowing adjustment units 50 and 50 block a part of the air path of the air blown out from the blowing port 13 (see FIG. 5). Specifically, when the blowout adjustment units 50 and 50 are in the projecting state, the blowout adjustment units 50 and 50 are restricted by the horizontal flap 25 in the air blown out from the front portion 14 of the blowout port 13 and forward. A part of the air path of the air blown out is shielded (see FIG. 8A).

(1-5) Control Unit As shown in FIG. 6, the control unit 60 is connected to various devices of the indoor unit 10 and the outdoor unit 90, and based on an 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.

  The remote controller 80 is provided with a plurality of switches such as an operation stop / start button and an operation mode switching button. The operation stop / start button is a switch that is operated when the operation of the air conditioner is stopped by the user or when the operation is started. The operation mode switching button is a switch operated when an operation mode included in various operations of the air conditioner is set by the user. The operation mode includes at least a normal cooling mode and a wide-angle blowing cooling mode (corresponding to a wide-angle blowing mode). The wide-angle blowout cooling mode is a mode in which cold air is blown out substantially horizontally from the blowout opening 13 both forward and sideward.

  The control unit 60 includes an execution unit 61. The execution part 61 performs the operation | movement according to various operation modes by performing operation control of the various apparatuses of the indoor unit 10. FIG. In addition, the execution unit 61 can receive each control signal related to the operation mode setting command and the operation stop command from the remote controller 80 transmitted from the control unit 60.

  Further, the execution unit 61 controls the drive mechanisms 22, 26, 31, 51 that drive the horizontal flap 25, the vertical flap 21, the side shielding members 30, 30, and the blowing adjustment units 50, 50, respectively. , The horizontal flap 25, the vertical flap 21, the side shielding members 30, 30, and the blow control units 50, 50 are driven at any timing. Specifically, the drive control unit 62 determines the attitude of the horizontal flap 25, the side shielding members 30 and 30, and the blowing adjustment units 50 and 50 based on the control signal from the control unit 60 received by the execution unit 61. Switch the state. The drive control unit 62 is configured so that the vertical flap 21 swings in the left-right direction with respect to the longitudinal direction of the casing 11 when various operations including a cooling operation and a heating operation are performed in the air conditioner. The drive of the drive mechanism 22 is controlled.

  For example, when a control signal related to the setting command for the normal cooling mode is transmitted from the control unit 60, the drive control unit 62 determines that the horizontal flap 25 has a predetermined posture other than the wide-angle posture (for example, the posture shown in FIG. 2). The drive mechanism 26 is driven so that When the normal cooling mode is executed, the cold air blown into the room from the front portion 14 of the blow-out port 13 is regulated by the horizontal flap 25 and blown out in a predetermined direction.

  For example, when a control signal related to the setting command for the wide-angle blow-off cooling mode is transmitted from the control unit 60, the drive control unit 62 takes the wide-angle posture of the horizontal flap 25 and opens the side shielding members 30 and 30. The drive mechanisms 26, 31, 51 are driven so that the blowing adjustment units 50, 50 are in the projecting state. When the wide-angle blowout cooling mode is executed, the cool air blown from the front portion 14 of the blowout port 13 is restricted by the blowout adjustment units 50 and 50 and the horizontal flap 25, and the front, rear, left and right of the indoor unit 10 are controlled. It is blown out substantially horizontally on both sides. In addition, the cold air that has flowed through the blowing channel B and reached the side surfaces 15 and 15 of the blowing port 13 is blown out toward the side of the indoor unit 10.

  In addition, when the control signal regarding the operation stop command of the operation including the cooling operation and the heating operation is transmitted from the control unit 60, the drive control unit 62 is configured so that the horizontal flap 25 covers the front part 14 of the outlet 13. When the drive mechanism 26 is driven and the side shielding members 30, 30 are in the open state, the drive mechanism 31 is driven so that the side shielding members 30, 30 are in the closed state, and the blowing adjustment unit When 50 and 50 are in the protruding state, the drive mechanism 51 is driven so that the blowing adjustment units 50 and 50 are in the stored state. Thereby, the blowing adjustment parts 50 and 50 are accommodated in the casing 11, and the blowing port 13 is shielded by the horizontal flap 25 and the side shielding members 30 and 30 (see FIG. 1).

(2) Flow of cold air when wide-angle blowing cooling mode is executed FIG. 7 is a view of a conventional indoor unit 710 as viewed from above. In addition, the arrow in FIG. 7 has shown the wind direction of the cool air which blows off from the blower outlet 713, when the wide angle blower air_conditioning | cooling mode is performed in the conventional indoor unit 710. FIG. FIG. 8A is a view of the indoor unit 10 of the present invention as viewed from above. In addition, the arrow in FIG. 8A has shown the wind direction of the cold air which blows off from the blower outlet 13, when the wide angle blower air_conditioning | cooling mode is performed in the indoor unit 10. FIG. FIG. 8B is a view of the indoor unit 10 as viewed from above, and is a view for explaining a predetermined wind speed.

  If the indoor unit having the same configuration except that the indoor unit 10 of the present embodiment is not provided with the blowing adjustment units 50 and 50 is a conventional indoor unit 710, the indoor unit 710 has a wide angle as shown in FIG. When the blowout cooling mode is executed, the cool air is blown out substantially horizontally from the blowout port 713 in both the front and the side, so that a predetermined area around the blowout port 713 in a plan view has a predetermined area around the blowout port 713. An air curtain extending from the front to the side is formed.

  On the other hand, in the indoor unit 10 of the present embodiment, when the wide-angle blowout cooling mode is executed, at least a part of the air path of the cold air blown out from the front portion 14 of the blowout opening 13 (in this embodiment, 2 As shown in FIG. 8A, the cold air blown out from the blowout port 13 is forward and side excluding the portion where the blowout adjustment units 50 and 50 are arranged. It flows toward. As a result, the blowout adjustment units 50 and 50 form a break area (corresponding to a blowout break area) where the wind speed is equal to or less than the predetermined wind speed in a predetermined area around the blowout opening 13 in plan view.

  The predetermined wind speed here is 50% (preferably 25%) of the average wind speed at a position 30 cm away from the air outlet 13 in a substantially horizontal direction (position indicated by a one-dot chain line in FIG. 8B). That is. In the present embodiment, the balloon adjustment units 50 and 50 are configured such that the total width of the discontinuous areas is 10% or more of the width of the predetermined area. Here, in this embodiment, the total width of the discontinuous regions is 10% or more of the width of the predetermined region, but the total width of the discontinuous regions is more preferably 20% or more of the width of the predetermined region. Furthermore, in the present embodiment, two discontinuous areas are formed in the predetermined area by the balloon adjusting units 50, 50, but the present invention is not limited to this, and the balloon adjustment is performed so that three or more discontinuous areas are formed. The part may be configured.

  In addition, the plan view here refers to a state in which the indoor unit installed on the wall W surface of the room is viewed from above.

(3) Features (3-1)
In an indoor unit designed so that air is blown substantially horizontally in both the front and side of the air outlet, for example, in a conventional indoor unit 710 as shown in FIG. 7, the front and side of the air outlet 713 When air is blown out in a substantially horizontal direction, an air curtain is formed in a predetermined area around the air outlet 713 in a plan view from the front to the side of the air outlet 713. Further, since the air curtain is formed around the blowout port 713, the air curtain is positioned so as to cover the lower side of the suction port 712. As described above, since the air curtain is formed around the blowout port 713, the indoor air below the air curtain is hardly sucked from the suction port 712, and there is a possibility that a short circuit may occur. In addition, when a short circuit occurs due to an air curtain covering the lower side of the suction port 712, the air conditioning function (particularly, the cooling function) is deteriorated, which may cause discomfort to the user.

  Therefore, in the present embodiment, when the wide-angle air-cooling mode in which the cold air is blown out in a substantially horizontal direction to the front and sides of the air outlet 13, pressure loss is provided in at least a part of the front of the air outlet 13 and the front of the air outlet 13. The blow-out adjusting sections 50 and 50 are made to take a close-out state so that the cold air hardly flows in at least a part of the air. As a result, a discontinuous region is formed in a predetermined region around the air outlet 13 in a plan view, so that the indoor air below the air curtain formed in the predetermined region is moved from the discontinuous region to above the air curtain. It becomes easy to flow.

  As a result, the possibility of the occurrence of a short circuit phenomenon can be reduced.

(3-2)
In the present embodiment, the blowing adjustment units 50 and 50 are arranged in the vicinity of the front portion of the blowing port 13 and in the vicinity of both end portions of the front portion 14. For this reason, when the wide-angle blow-off cooling mode is executed, the discontinuous regions are formed at two positions separated from each other in the predetermined region.

  Here, for example, in the predetermined area, when the right interrupted area is not formed, the air above the air curtain may be mainly sucked into the right side of the suction port.

  On the other hand, in the present embodiment, in the predetermined region, the discontinuous region is formed at two positions that are separated from each other on the left and right, so that the air below the air curtain from the discontinuous region formed on the right side is formed on the right side of the suction port. In addition, air below the air curtain is sucked into the left side of the suction port from a discontinuous region formed on the left side. Therefore, for example, air below the air curtain is more likely to flow upward from the blowout interruption region than in the case where the interruption region is formed in only one place in the predetermined region.

  As a result, the possibility of the occurrence of a short circuit phenomenon can be reduced.

(3-3)
In the present embodiment, when the blowing adjustment units 50 and 50 are in the close-out state, a part of the cool air path blown out from the front part 14 of the blowing port 13 is shielded. In this manner, the blowout adjustment units 50 and 50 can form a discontinuous region by shielding a part of the air path of the cold air blown out from the blowout port 13.

(3-4)
In the present embodiment, the balloon adjustment units 50 and 50 are configured so that the total width of the interrupted areas is 10% or more of the width of the predetermined area. Compared with the case where the width is less than 10%, the air below the air curtain can be effectively flowed upward.

(3-5)
In the present embodiment, the blowout adjustment units 50 and 50 are disposed in the vicinity of the front portion of the blowout port 13 and in the vicinity of both end portions of the front portion 14, so that there is a discontinuous region in front of the indoor unit 10 in plan view. It is formed.

  For example, as shown in FIG. 9A, when a discontinuous region is formed on the side of the indoor unit 710 in a plan view, there is a wall W on the rear side (rear surface) of the indoor unit 710. The lower air can be sucked mainly in the portions R1 and R1 located near the side surface of the indoor unit at the suction port 712, and there is a region where the air below the air curtain can be sucked in the suction port 712. It becomes narrower.

  On the other hand, in this embodiment, even if there is a wall W at the rear (rear surface) of the indoor unit 10 as shown in FIG. The air below the air curtain can be sucked from the portions R2 and R2 located near the discontinuity region in the suction port 12. As a result, compared with the case where the discontinuous region is formed on the side of the indoor unit 710 in plan view, the region of the suction port that can suck the air below the air curtain can be widened. Therefore, in this indoor unit 10, the air below the air curtain can be effectively sucked.

(4) Modification (4-1) Modification 1A
In the embodiment described above, the blowing adjustment units 50 and 50 are provided separately from the flap 20 and the side shielding members 30 and 30.

  Instead of this, a part of the horizontal flap may be a blowing adjustment unit.

  For example, as shown in FIG. 10, the horizontal flap 125 may have an opening / closing plate-shaped blowing adjustment unit 150. The blowing adjustment unit 150 is arranged to shield at least a part of the front part 114 of the blowing port 113 by being driven by a driving mechanism when the horizontal flap 125 takes a wide-angle posture. As a result, pressure loss is provided in at least a part of the air outlet 113, and it is difficult for the cool air to flow in at least part of the front of the air outlet 113. Therefore, a discontinuous region is formed in a predetermined area around the air outlet 113 in a plan view. Can do. As a result, it is possible to prevent the air curtain that covers the lower portion of the suction port (not shown) from being formed.

  Moreover, the rib provided in the horizontal flap so that the cold air blown off from the front part of the outlet may not be directed to the side may be used. For example, ribs as the blowing adjustment unit 250 may be positioned near both ends of the horizontal flap 225 (see FIG. 11). As shown in FIG. 12A, the ribs as the blowing adjustment unit 250 may be disposed near the short side of the horizontal flap 225 as shown in FIG. As shown to 12 (b), you may provide from the center rather than the short side of the horizontal flap 225. FIG. Furthermore, the number of ribs is not limited and, for example, a plurality of ribs may be provided. Thus, when the ribs as the blowout adjustment unit 250 are located in the vicinity of both ends of the horizontal flap 225, the air blown out from the front part 214 of the blowout port 213 is regulated by the ribs. It becomes difficult to go to the side (see FIG. 13). As a result, during cooling operation, the cool air flows toward the front and rear because it is restricted by the horizontal flap 225, so that the air flow blown from the side surface part 215 of the blowout port 213 and the front part 214 of the blowout port 213 blown out. It is possible to prevent the air flow from overlapping. Thereby, since a discontinuous region can be formed in a predetermined region around the air outlet 213 in a plan view, the possibility that an air curtain is formed so as to surround the air outlet 213 can be reduced and formed in the predetermined region. The air in the room below the air curtain can easily flow from the interrupted area to the upper side of the air curtain. As a result, the possibility that a short circuit phenomenon will occur can be reduced.

  In addition, in FIG. 13, the code | symbol 211 has shown the casing and the code | symbol 212 has shown the suction inlet.

(4-2) Modification 1B
In the said embodiment, the blowing adjustment parts 50 and 50 are comprised so that a part of flow of the air blown out from the blowing outlet 13 may be inhibited, and when the blowing adjustment parts 50 and 50 take a projecting state, A discontinuous region is formed.

  Instead, the blowing adjustment unit is configured so that at least a part of the blowing air flow forward of the blowing outlet or at least a part of the blowing air flow toward the side of the blowing outlet is directed downward. In a predetermined region around the outlet in a plan view, an interrupted region may be formed by a part of the air flow flowing downward.

  For example, the blowout adjustment unit 350 may be the notches 351, 352, and 353 provided in the horizontal flap 325. The notches 351 and 352 may be located at the front end of the horizontal flap 325 as shown in FIG. 14, and are the front of the horizontal flap 325 as shown in FIG. You may be located in the center side rather than the side edge part of the flap 325. FIG. Further, when the notch 353 is located at the front end of the horizontal flap 325, the horizontal flap 325 is moved from the predetermined position at the front end of the horizontal flap 325 to the side of the horizontal flap 325 as shown in FIG. You may form by notching diagonally toward an edge.

  In the horizontal flap 325, the notched portions 351, 352, and 353 are provided with the notches 351, 352, and 353, because the front edges thereof are located rearward compared to the other portions. The air flowing from the portion flows downward as compared to the air flowing from other portions where the notches 351, 352, 353 are not formed.

  And when the notch parts 351 and 353 are located in the front side edge part of the horizontal flap 325, the air of the part in which the notch part is located among the air blown out from the air outlet 313, that is, the air outlet Of the air blown out from 313, a part of the air that is regulated by the horizontal flap 325 and goes to the side flows downward than the air in the other parts (see the broken-line arrows in FIG. 17). For this reason, the flow of air blown from the front portion 314 of the blowout port 313 and the flow of air blown from the side surface portion 315 of the blowout port 313 can be prevented from overlapping. That is, a part of the flow of cool air blown out from the blowout port 313 flows downward from the substantially horizontal direction, so that a discontinuous region can be formed in a predetermined region around the blowout port 313 in plan view.

  Further, when the cutout portion 352 is the front portion of the horizontal flap 325 and is located at the center side of the side end portion of the horizontal flap 325, the air blown out from the blowout port 313 Of the air in the portion where the notch 352 is located, that is, the air blown out from the blowout port 313, a part of the air that is restricted by the horizontal flap 325 and goes forward is directed downward than the air in the other portion. (See broken line arrows in FIG. 18). For this reason, a part of the cool air blown out from the front portion 314 of the air outlet 313 flows downward from the substantially horizontal direction, thereby forming a discontinuous region in a predetermined area around the air outlet 313 in plan view. it can.

  In FIG. 17 and FIG. 18, reference numeral 312 indicates a suction port.

  Further, as shown in FIG. 19, the blowout adjustment unit may be a dent 354 provided near the blowout port 313 of the casing 311.

(4-3) Modification 1C
In the above-described embodiment, the blowing adjustment units 50 and 50 are plate-like members arranged in the vicinity of the blowing port 13.

  It replaces with this and the blowing adjustment part may be provided in the channel formation part which constitutes blowing channel B.

  Here, FIG. 20A is a longitudinal sectional view of a conventional indoor unit 710, and FIG. 20B shows a recess 451 serving as a blowing adjustment unit 450 in a flow path forming unit 411a constituting the blowing flow path B. It is a longitudinal cross-sectional view of the indoor unit 410 provided with. The flow path forming portions 411a and 711a are part of the casings 411 and 711, respectively.

  In the conventional indoor unit 710, as shown in FIG. 20 (a), the air flowing through the blowing channel B is blown out from the blowing port 713, and is regulated by a horizontal flap 725 taking a predetermined posture. Head in the direction.

  On the other hand, as shown in FIG. 20 (b), when the recess 451 as the blowing adjustment unit 450 is provided so as to widen the vicinity of the blowing port 413 front portion of the blowing channel B, the blowing port Since the horizontal flap 425 cannot sufficiently regulate the cold air blown out from the front portion 414 of the 413, the cold air can flow downward. As a result, a part of the air blown out from the front portion 414 of the blowout port 413 is regulated by the horizontal flap 425 and flows downward without going in the substantially horizontal direction. A discontinuous region is formed in the surrounding predetermined region. Thereby, a possibility that the air curtain which covers the lower part of the suction inlet 412 may be formed can be reduced.

(4-4) Modification 1D
In the said embodiment, the blowing adjustment parts 50 and 50 are provided separately from the flap 20 and the side shielding members 30 and 30, and the horizontal flap 25 is a substantially plate-shaped member. Instead of this, the blowing adjustment unit may be configured by deforming a part of the horizontal flap.

  For example, as shown in FIG. 21, the blowing adjustment unit 550 may be a curved portion 551 formed to bend downward from the front end portion or the side end portion of the horizontal flap 525. Further, as shown in FIG. 22, the blowout adjustment portion 550 may be a recess 552 formed so as to be recessed downward at the front portion of the horizontal flap 525. By configuring the horizontal flap 525 as described above, the cold air blown out from the blowout port 513 is restricted by the curved portion 551 or the concave portion 552 and flows downward from the substantially horizontal direction. A discontinuous region can be formed in a predetermined region around 513.

(4-5) Modification 1E
In the said embodiment, the horizontal flap 25 is a plate-shaped member which exhibits substantially rectangular shape.

  It may replace with this and the convex part provided in the horizontal flap so that the thickness of a horizontal flap may partially increase may be sufficient as a blowing adjustment part. For example, as shown in FIG. 23 and FIG. 24, when a convex portion 651 as the blowout adjustment unit 650 is provided in a part of the front portion of the horizontal flap 625, the blowout from the front portion 614 of the blowout port 613 is performed. Of the generated air, the air restricted by the portion other than the convex portion 651 of the horizontal flap 625 flows in the substantially horizontal direction forward, rearward, and laterally, and the air restricted by the convex portion 651 has a Coanda effect. Therefore, it flows downward from the substantially horizontal direction (see FIG. 24). In this way, a part of the air blown from the front portion 614 of the blowout port 613 flows downward from the substantially horizontal direction, so that an air barrier that covers the lower portion of the suction port (not shown) is formed. The risk of being lost can be reduced.

(4-6) Modification 1F
In the said embodiment, when the horizontal flap 25 takes a wide angle attitude | position, the air which blown off from the front part 14 of the blower outlet 13 is controlled by the horizontal flap 25, and the front of the indoor unit 10, back, and both sides Is blown out in a substantially horizontal direction.

  Instead, a posture in which the rear edge side of the horizontal flap 25 is closed may be a wide-angle posture. In this case, the air blown from the front portion 14 of the blow-out port 13 is blown in a substantially horizontal direction forward and both sides of the indoor unit 10 by being restricted by the horizontal flap 25. Thus, even when the horizontal flap 25 adopts the wide-angle posture in the present modification, the wide-angle balloon mode is executed, so that the balloon adjustment units 50 and 50 are in the protruding state. A discontinuous region is formed in a predetermined region around the outlet 13. As a result, the possibility that a short circuit phenomenon will occur can be reduced.

Second Embodiment
Hereinafter, an indoor unit 810 according to a second 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) Configuration of Indoor Unit The indoor unit 810 is a wall-hanging indoor unit that is attached to the wall W of the room. The indoor unit 810 has a cooling function, and constitutes an air conditioner together with an outdoor unit (see FIG. 26) 890 installed outside, and various operations including a cooling operation and a heating operation are performed. The indoor unit 810 mainly includes a casing 811, a flap 820, side shielding members 830 and 830, and a control unit 860 (see FIGS. 25 and 26).

(1-1) Casing The casing 811 is a substantially rectangular member that is long in the horizontal direction. Note that the configuration of the casing 811 is the same as that of the casing 11 of the first embodiment, and a description thereof will be omitted here.

(1-2) A plurality of flaps The flap 820 can change the air direction of the air blown from the outlet 813 and has a plurality of flaps 821 and 825. The plurality of flaps 821 and 825 include a plurality of vertical flaps 821 and one or more horizontal flaps 825.

  The plurality of vertical flaps 821 are arranged in the blowing channel B as shown in FIG. The plurality of vertical flaps 821 are connected by a connecting rod (not shown), and the connecting rod is driven by a predetermined drive mechanism (see FIG. 26) 822 having a plurality of drive motors. When the connecting rod is driven by the drive mechanism 822, the plurality of connected vertical flaps 821 simultaneously swing in the same direction. Specifically, the surfaces of the plurality of connected vertical flaps 821 swing to the left or right around the state perpendicular to the longitudinal direction of the casing 811. In the present embodiment, a plurality of vertical flaps 821 are connected by a connecting rod to form at least four vertical flap groups 821a, 821b, 821c, and 821d. The vertical flap groups 821a, 821b, 821c, and 821d adjust the blowing direction of the conditioned air in the left-right direction of the indoor unit 810 by swinging or stopping at an arbitrary angle after swinging.

  The horizontal flap 825 is a plate-like member that is long in the left-right direction of the indoor unit 810. Further, the horizontal flap 825 is disposed at the lower part of the indoor unit 810. Specifically, the horizontal flap 825 is disposed so as to be able to cover substantially the entire opening formed on the bottom surface of the casing 811 at the outlet 813. In the present embodiment, the indoor unit 810 includes one horizontal flap 825, but is not limited thereto, and may include a plurality of horizontal flaps.

  Further, the horizontal flap 825 adjusts the blowing direction of the adjustment air in the vertical direction of the indoor unit 810 by taking a predetermined posture. The horizontal flap 825 is driven by a predetermined drive mechanism having a drive motor (for example, a drive mechanism having a rack / pinion mechanism, a link mechanism, etc.) 826, and the posture is changed. Posture is maintained.

  Furthermore, the predetermined posture of the horizontal flap 825 includes a wide-angle posture (see FIG. 4). The wide-angle posture is a posture of the horizontal flap 825 arranged substantially parallel to the front portion 814 of the blowout port 813 when the portion covered by the horizontal flap 825 in the blowout port 813 is the front portion 814 of the blowout port 813. That is. When the horizontal flap 825 adopts a wide-angle posture, the air blown out from the front portion 814 of the air outlet 813 is regulated by the horizontal flap 825, so that it is substantially horizontal to the front, rear and both sides of the indoor unit 810. Blown in the direction.

(1-3) Side Shielding Member The side shielding members 830 and 830 are members that can cover the opening portions 815 and 815 that are mainly formed on the side surface of the casing 811 at the outlet 813. The indoor unit 810 is disposed at the lower left and right sides. In addition, since the structure of the side shielding members 830 and 830 is the same structure as the side shielding members 30 and 30 of the first embodiment, description thereof is omitted here. Further, the side shielding members 830 and 830 are driven by the drive mechanism 831. Furthermore, although the indoor unit 810 of the present embodiment includes the side shielding members 830 and 830, the indoor unit 810 is not limited thereto, and does not include the side shielding member, and is formed on the side surface of the casing at the outlet. The opening portion that is open may always be open.

(1-4) Control Unit As shown in FIG. 26, the control unit 860 is connected to various devices of the indoor unit 810 and the outdoor unit 890, and based on the operation command from the user via the remote controller 880, Operation control of various devices according to each operation mode such as cooling operation and heating operation is performed. Note that the configuration of the remote controller 880 is the same as that of the remote controller 80 of the first embodiment, and a description thereof will be omitted here.

  In addition, the control unit 860 includes an execution unit 861. The execution unit 861 performs operation according to various operation modes by performing operation control of various devices of the indoor unit 810. Further, the execution unit 861 can receive each control signal related to the operation mode setting command and the operation stop command from the remote controller 880 transmitted from the control unit 860.

  Furthermore, the execution unit 861 controls the horizontal flap 825, the vertical flap 821, and the side by controlling the driving mechanisms 822, 826, and 831 that drive the horizontal flap 825, the vertical flap 821, and the side shielding members 830 and 830, respectively. A drive control unit 862 that drives the shielding members 830 and 830 at an arbitrary timing is provided. Specifically, the drive control unit 862 switches the posture of the horizontal flap 825 and the state of the side shielding members 830 and 830 based on the control signal from the control unit 860 received by the execution unit 861. When the control signal related to the setting command for the wide-angle blowing cooling mode is not transmitted from the control unit 860, the drive control unit 862 causes the plurality of vertical flaps 821 to swing left and right with respect to the longitudinal direction of the casing 811. Then, the drive mechanism 822 is driven.

  For example, when a control signal related to the normal cooling mode setting command is transmitted from the control unit 860, the drive control unit 862 drives the drive mechanism 822 so that the plurality of vertical flaps 821 swing left and right, and The drive mechanism 826 is driven so that the horizontal flap 825 takes a predetermined posture other than the wide-angle posture (for example, the posture shown in FIG. 2). Thereby, the conditioned air blown into the room from the front portion 814 of the blowout port 813 is regulated by the horizontal flap 825 and blown out in a predetermined direction.

  Further, for example, when a control signal related to the setting command for the wide-angle blow-off cooling mode is transmitted from the control unit 860, the drive control unit 862 is fixed in a state where the vertical flap groups 821a and 821c are swung in the left direction. The drive mechanism 822 is driven so that the flap groups 821b and 821d are fixed in a state of swinging in the right direction, and the drive mechanisms 826 are driven so that the horizontal flap 825 takes a wide-angle posture. The drive mechanism 831 is driven so that 830 and 830 are in the open state. At this time, the adjacent vertical flap groups 821a, 821b, 821c, and 821d are fixed in a state of swinging in different directions, so that the vertical flap groups 821a and 821b and the vertical flap groups 821b are fixed. The cool air is not actively guided between the 821c and the vertical flap group 821d, and the amount of cool air flowing is smaller than other portions (see FIG. 25). As a result, the cold air blown out from the blowout port 813 flows forward and sideward, but flows to the side and the flow of cold air flowing forward as shown in FIG. 27 which is a view of the indoor unit 810 viewed from above. A region where the cold air does not flow or the flow rate of the cold air is small is formed between the flow of the cold air. In addition, in FIG. 27, the code | symbol 812 has shown the suction inlet.

  In addition, when the control signal regarding the operation stop command of the operation including the cooling operation and the heating operation is transmitted from the control unit 860, the drive control unit 862 is configured such that the horizontal flap 825 covers the front portion 814 of the outlet 813. When the side shielding members 830 and 830 are in the open state, the driving mechanism 831 is driven so that the side shielding members 830 and 830 are in the closed state. Thereby, the outlet 813 is shielded by the horizontal flap 825 and the side shielding members 830 and 830 (see FIG. 1).

(2) Flow of cold air when wide-angle blow-off cooling mode is executed FIG. 28 is a longitudinal sectional view of an indoor unit 910 having a flap having two vertical flap groups 921a and 921b. The directions of the plurality of vertical flaps 921 and the direction in which the cool air guided by the plurality of vertical flaps 921 flow when the wide-angle blowing cooling mode is executed are shown. FIG. 29 is a view of an indoor unit 910 including a flap having two vertical flap groups 921a and 921b as viewed from above. In addition, the arrow in FIG. 29 has shown the wind direction of the cool air which blows off from the blower outlet 913 when the predetermined wide angle blower air_conditioning | cooling mode is performed in the indoor unit 910. FIG.

  The inventor examined the formation state of the air curtain in the indoor unit in which cold air is blown out substantially horizontally in front and side of the outlet, and obtained the following knowledge.

  As shown in FIG. 28, in the indoor unit 910, a predetermined wide-angle blowing cooling is performed in a state where the vertical flap group 921a is swung and fixed in the left direction and the vertical flap group 921b is swung and fixed in the right direction. When the mode (in this embodiment, the wide-angle blowing cooling mode that differs only in the swing state of the vertical flap groups 821a, 821b, 821c, and 821d) is executed, the wind speed at a position 30 cm away from the blowing port 913 in a substantially horizontal direction is It was almost uniform over the periphery of the air outlet 913. From this result, in the indoor unit 910, when the predetermined wide-angle blowing cooling mode is executed in a state where the vertical flap groups 921a and 921b are rocked and fixed as shown in FIG. Regardless of whether the cool air is actively guided by 921b, as shown in FIG. 29, which is a view of the indoor unit 910 as viewed from above, a predetermined area around the outlet 913 in a plan view It was considered that an air curtain extending from the front of the mouth 913 to the side was formed.

  On the other hand, when the wide-angle blowing cooling mode is executed, at least two or more portions where the cool air is not actively guided by the vertical flap groups 821a, 821b, 821c, and 821d are shown in FIG. Thus, in the predetermined area | region around the blower outlet 813 in planar view, two discontinuous areas where a wind speed is below a predetermined wind speed can be formed. As a result, it is possible to prevent an air curtain extending from the front to the side of the outlet 813 from being formed.

  The predetermined wind speed here means the same wind speed as in the first embodiment. In the present embodiment, the vertical flap groups 821a, 821b, 821c, and 821d are configured such that the total width of the discontinuous regions is 10% or more of the width of the predetermined region. Is more preferably 20% or more of the width of the predetermined region.

  In addition, the plan view here refers to a state in which the indoor unit installed on the wall W surface of the room is viewed from above.

(3) Features (3-1)
In the present embodiment, when the cool air is blown out substantially horizontally from the blowout port 813 both to the front and the side, that is, when the wide-angle blowout cooling mode is executed, the drive of the vertical flap 821 is controlled. Thus, it is possible to form a region in which the cool air hardly flows at least in front of the front portion 814 of the outlet 813. As described above, a discontinuous region is formed in a predetermined region around the air outlet 813 in a plan view, so that indoor air below the air curtain formed in the predetermined region can be moved from the discontinuous region to the upper portion of the air curtain. It becomes easy to flow.

  As a result, the possibility of the occurrence of a short circuit phenomenon can be reduced.

(3-2)
In the present embodiment, when the wide-angle blow-off cooling mode is executed, two discontinuous regions are formed in the predetermined region. For this reason, for example, cool air below the air curtain is more likely to flow upward from the blowout interruption region than when only one interruption region is formed in the predetermined region.

(3-3)
In the present embodiment, when the wide-angle blow-off cooling mode is executed, the adjacent vertical flap groups 821a, 821b, 821c, and 821d are fixed in a state where they are swung in different directions, thereby forming a region where the cold air hardly flows. In addition, a discontinuous region is formed in a predetermined region around the outlet 813 in plan view.

(4) Modification (4-1) Modification 2A
In the above embodiment, the drive mechanism 822 drives the vertical flap groups 821a, 821b, 821c, and 821d in different directions.

  Alternatively, the plurality of vertical flaps 821 may be individually driven. When the plurality of vertical flaps 821 can be driven individually, some of the plurality of vertical flaps 821 are arranged horizontally (see FIG. 30A) or arranged in a mountain shape (FIG. 30 ( b)). By arranging the vertical flap 821 in this way, a pressure loss can be provided in a part of the air passage. As a result, at the time of execution of the wide-angle blowing cooling mode, it is possible to form a region where it is difficult for cold air to flow at least in front of the front portion 814 of the blowing port 813. A discontinuous region can be formed.

(4-2) Modification 2B
In the above embodiment, when the wide-angle blow-off cooling mode is executed, the vertical flap groups 821a, 821b, 821c, and 821d are controlled so that a discontinuous region is formed in a predetermined region around the blow-out port 813 in a plan view. Yes.

  Instead of this, a discontinuous region may be formed by a plurality of horizontal flaps 825, 825,. Specifically, when the front portion 814 of the outlet 813 is covered by a plurality of horizontal flaps 825, 825,... That are adjacent in the left-right direction, the plurality of horizontal flaps 825, 225 are provided when the wide-angle outlet cooling mode is executed. Are arranged so as to shield a part of the front portion 814, and other horizontal flaps 825, 825,... Are arranged substantially parallel to the front portion 814. Further, each horizontal flap 825, 825,... May be driven. In this way, by blocking a part of the front portion 814 with the horizontal flap 825 and inhibiting the blowing of the cold air, an area where the cold air hardly flows can be formed in at least a part of the front of the blowing port 813. Thereby, since a discontinuous region can be formed in a predetermined region around the outlet 813 in a plan view, the possibility of occurrence of a short circuit phenomenon can be reduced.

(4-3) Modification 2C
In the above embodiment, when the horizontal flap 825 takes a wide-angle posture, the air blown out from the front portion 814 of the air outlet 813 is restricted by the horizontal flap 825 so that the front, rear and both sides of the indoor unit 810 are controlled. Is blown out in a substantially horizontal direction.

  Instead of this, a posture in which the rear edge side of the horizontal flap 825 is closed may be a wide-angle posture. In this case, the air blown from the front portion 814 of the blowout port 813 is blown in a substantially horizontal direction forward and both sides of the indoor unit 810 by being restricted by the horizontal flap 825. As described above, even when the horizontal flap 825 adopts the wide-angle posture in this modification, the cold air is actively guided by the vertical flap groups 821a, 821b, 821c, and 821d by executing the wide-angle blowing mode. Since a portion that is not formed is formed, a discontinuous region is formed in a predetermined region around the outlet 813 in a plan view. As a result, the possibility that a short circuit phenomenon will occur can be reduced.

  The present invention can reduce the possibility that a short circuit phenomenon will occur when air-conditioning a wide area in a wall-hanging air-conditioning indoor unit by blowing air simultaneously to the front and side of the air outlet. Application to an air-conditioning indoor unit having a cooling function is effective.

451 Concave portion 551 Curved portion 552 Concave portion 821 Vertical flap 10,810 Indoor unit (air conditioning indoor unit)
11, 211, 311, 411, 811 Casing 12, 812 Suction port 13, 113, 213, 313, 413, 513, 613, 813 Outlet port 20,820 Flap 60, 860 Control unit 325, 525, 825 Horizontal flap 351, 352,353 Notch

JP 2006-2984 A

Claims (12)

A wall-hanging air conditioning indoor unit having a cooling function,
A casing (11, 211, 311 and 411) in which a blowing port (13, 113, 213, 313, 413, 513, 613) and a suction port (12) positioned above the blowing port are formed; ,
A flap (20) capable of changing the wind direction of the cold air blown from the outlet;
A balloon adjustment unit (50, 150, 250, 350, 450, 550, 650) disposed around the outlet;
A control unit (60) for executing a wide-angle blowing mode for blowing cool air in a substantially horizontal direction both forward and laterally from the blowing port;
With
When the wide angle blowing mode is executed, the blowing adjustment unit blows out cold air in a substantially horizontal direction so that a blowout interruption region having a wind speed equal to or lower than a predetermined wind speed is formed in a predetermined region around the blowing port in a plan view. Inhibit,
Air conditioning indoor unit (10). In the predetermined region, the blowout interruption region is formed at two or more locations,
The air conditioning indoor unit according to claim 1. In the blowout interruption region, the cold air blown out from the blowout port flows downward in a substantially horizontal direction.
The air conditioning indoor unit according to claim 1 or 2. The flap includes a horizontal flap (325) capable of changing the wind direction in the vertical direction of the cold air blown out from the outlet,
The blowing adjustment part is a notch part (351, 352, 353) formed in the front part of the horizontal flap.
The air conditioning indoor unit according to claim 3. The notch is formed by the horizontal flap being cut obliquely from a predetermined position of the front end of the horizontal flap toward the side end of the horizontal flap.
The air conditioning indoor unit according to claim 4. In the casing, a flow path (A) through which cool air is sucked from the suction port and blown from the blowout port is formed,
The blowing adjustment part is a recess (451) formed so as to widen the vicinity of the blowing port front part in the flow path.
The air conditioning indoor unit according to claim 3. The flap includes a horizontal flap (525) capable of changing a wind direction in the vertical direction of the cold air blown from the outlet,
The blowing adjustment portion is formed so as to be bent downward at the front end of the horizontal flap or a curved portion (551) formed to bend downward from the side end, or at the front of the horizontal flap. Recessed portion (552),
The air conditioning indoor unit according to claim 3. The blowout adjustment unit shields a cold blowout from a predetermined portion of the blowout opening;
The air conditioning indoor unit according to claim 1 or 2. A wall-hanging air conditioning indoor unit having a cooling function,
A casing (811) in which a blowing port (813) and a suction port (812) positioned above the blowing port are formed;
A flap (820) capable of changing the wind direction of the cold air blown from the outlet;
When cold air is blown out in a substantially horizontal direction both forward and laterally from the blowout port, a blowout interruption region where the wind speed is equal to or lower than the predetermined wind speed is formed in a predetermined region around the blowout port in a plan view. A control unit (860) for controlling the driving of the flap;
An air conditioning indoor unit (810) comprising: In the predetermined region, the blowout interruption region is formed at two or more locations,
The air conditioning indoor unit according to claim 9. The flap includes a plurality of vertical flaps (821) that change the wind direction in the left-right direction of the cold air blown from the outlet.
The air conditioning indoor unit according to claim 9 or 10. The flap includes a plurality of horizontal flaps (825) for changing the vertical wind direction of the cold air blown from the outlet.
The air conditioning indoor unit according to claim 9 or 10.

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