JP4656257B1 - Air conditioner - Google Patents

Abstract

In an air conditioner having a shutter that blows conditioned air in the left-right direction, more conditioned air is blown out in the left-right direction.
A casing body 6A is formed with a left side outlet 7Ab and a right side outlet at both ends of the central outlet in the longitudinal direction. The left shutter 20Aa and the right shutter open and close the left side outlet 7Ab and the right side outlet, respectively. The left shutter 20Aa and the flap 11A are configured to partially overlap each other in a state in which the left side air outlet 7Ab and the central air outlet are closed.
[Selection] Figure 15

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner that performs indoor air conditioning by blowing conditioned air into the room.

  The air conditioner includes an indoor unit installed indoors for air conditioning in the room. For example, in the case of a wall-mounted indoor unit, an air conditioner indoor unit includes an indoor heat exchanger in the main body casing, sucks indoor air into the main body casing by a blower fan such as a crossflow fan, and passes through the indoor heat exchanger. The conditioned air is blown out of the main body casing mainly from the blowout port toward the front.

  In general, in order to control the wind direction of the conditioned air blown from the air outlet, left and right wind direction changing blades that adjust the wind direction in the left and right direction and vertical wind direction changing blades that adjust the wind direction in the up and down direction are provided. The air outlet of the conventional wall-mounted indoor unit is provided on the front surface of the indoor unit or the bottom surface of the indoor unit, and the vertical wind direction is adjusted by the vertical wind direction changing blades when the indoor unit is in operation. In this way, when the wind direction is controlled by the left and right wind direction changing blades and the up and down wind direction changing blades, in order to generate a conditioned air flow in the side surface direction (left and right direction) of the casing body, for example, Patent Document 1 (Japanese Patent Laid-Open No. Hei 8- No. 178407 discloses an example in which the air outlet is provided to extend to both the left and right ends of the front surface of the indoor unit main body.

  As described above, when the outlets are provided at the left and right ends of the indoor unit and the side surfaces of the indoor unit, the conditioned air can be blown out in the left and right direction by adjusting the direction of the left and right wind direction changing blades. However, if air outlets are provided over the entire longitudinal direction of the indoor unit or on the side surface of the indoor unit in this way, there is no shortage of airflow in the left / right direction even when it is not desired to blow conditioned air in the left / right direction. Occurs.

  Therefore, there has been proposed one provided with a shutter so that the left and right ends or the right and left side outlets can be opened and closed. The length of the up / down air direction changing blade is limited depending on how the side air outlet and the shutter for blowing the conditioned air in the left / right direction are provided, so that the air direction changing performance of the up / down air direction changing blade is reduced. Become. In particular, it may be difficult to generate a conditioned airflow in the left-right direction using the up / down airflow direction changing blades, and a sufficient conditioned airflow in the left / right direction may not be obtained.

  An object of the present invention is the air conditioning apparatus having a shutter and then blowing the conditioned air to the left-right direction is to make blown more conditioned air to the left and right directions.

  An air conditioner according to a first aspect includes a casing body, a shutter, and a flap. The casing body is formed with a central outlet for blowing conditioned air forward. Further, the casing body is formed with a side air outlet provided at at least one of both ends in the longitudinal direction of the central air outlet for blowing out conditioned air in either the left or right direction. The shutter opens and closes the side outlet. The flap is provided along the longitudinal direction of the central outlet in front of the central outlet. This flap opens and closes the central outlet and adjusts the direction of conditioned air blown from the central outlet. And a flap and a shutter are comprised so that a part may mutually overlap in the state which closed the side blower outlet and the center blower outlet.

  According to the air conditioner according to the first aspect, the flap can be extended to the position of the shutter. It becomes easy to blow out conditioned air in either the left or right direction by using the region near the left or right end of the extended flap.

  An air conditioning apparatus according to a second aspect is the air conditioning apparatus of the first aspect, shutter, lateral outlet open mouth by rotational movement towards the flap.

  According to the air conditioner according to the second aspect, when the shutter is rotated and moved toward the flap, the shutter is inclined and the space between the shutter and the flap is widened, so that it is easy to form a blowout passage in either the left or right direction. become.

  The air conditioner according to the third aspect is the air conditioner according to the second aspect, and the shutter and the flap are driven so that the flap is opened first and then the shutter is opened.

  According to the air conditioner according to the third aspect, when the flap partially overlaps the shutter in the closed state, the flap and the shutter are opened in this order to prevent mutual interference when the flap and the shutter are opened. can do.

  The air conditioner according to the fourth aspect is the air conditioner according to the third aspect, and is driven so that the shutter is closed first and then the flap is closed.

  According to the air conditioner pertaining to the fourth aspect, when the flap partially overlaps the shutter in the closed state, when the flap and the shutter are closed, the shutter and the flap are closed in this order to prevent mutual interference. can do.

  An air conditioner according to a fifth aspect is the air conditioner according to any one of the first to fourth aspects, wherein the shutter and the flap are configured to be flush with each other in the closed state.

  According to the air conditioner according to the fifth aspect, the shutter and the flap are configured to be flush with each other even though the shutter and the flap overlap each other. Appearance.

  In the air conditioner of the first aspect, it becomes easier to guide the conditioned air in the left-right direction with the flap using the region near the end of the extended flap, and more conditioned air is blown out in the left-right direction (longitudinal direction of the flap). Can be made.

  In the air conditioning apparatus according to the second aspect, it becomes easier to guide the conditioned air in the left-right direction.

  In the air conditioner of the third aspect, the central air outlet and the side air outlets can be opened despite the flaps partially overlapping the shutter in the closed state.

  In the air conditioner of the fourth aspect, the central air outlet and the side air outlets can be closed despite the flap partially overlapping the shutter in the closed state.

  In the air conditioner of the fifth aspect, it becomes easy to design a device that exhibits a beautiful appearance.

The figure which shows the outline | summary of the air conditioning apparatus which concerns on one Embodiment of this invention. The front view of the indoor unit which concerns on one Embodiment. The side view of the indoor unit which concerns on one Embodiment. The schematic diagram for demonstrating the structure of the periphery of a blowing channel | path. (A) The top view which shows the vertical louver of a state perpendicular | vertical with respect to the left-right direction. (B) The top view which shows the vertical louver in the state inclined most to the right. (C) The top view which shows the vertical louver of a state with less direction to the right than the state of (b). The block diagram which shows the structure of a control part. The perspective view which shows the structure of the periphery of a horizontal flap and a horizontal flap drive mechanism. (A) The partially broken side view which shows the state which the horizontal flap closed. (B) The partially broken side view which shows the state which the horizontal flap opened in the arm upper position. (C) The partially broken side view which shows the state which the horizontal flap opened in the arm upper position. (D) The partially broken side view which shows the state which the horizontal flap opened in the arm upper position. (E) The partially broken side view which shows the state which the horizontal flap opened in the arm lower position. (F) The partially broken side view which shows the state which the horizontal flap opened in the arm lower position. (A) The partially broken expansion perspective view of the left shutter periphery. (B) The partially broken expansion perspective view for demonstrating operation | movement of a left shutter. (C) The partially broken expansion perspective view for demonstrating operation | movement of a left shutter. (A) The partially broken expansion perspective view of the left shutter periphery. (B) A partially broken enlarged perspective view around the left shutter. (A) A partially broken enlarged perspective view around a left shutter to be compared. (B) A partially broken enlarged perspective view around the left shutter to be compared. The flowchart for demonstrating attitude | position control when opening a horizontal flap. The flowchart for demonstrating attitude | position control when closing a horizontal flap. (A) The schematic diagram for demonstrating the motion of the vertical louver and shutter when blowing forward. (B) The schematic diagram for demonstrating the motion of the vertical louver and shutter at the time of right blowing. (C) The schematic diagram for demonstrating the motion of the vertical louver and shutter at the time of left blowing. (D) The schematic diagram for demonstrating the motion of a vertical louver and a shutter when blowing on both right and left sides. (E) The schematic diagram for demonstrating the motion of the vertical louver and shutter which perform swing operation | movement. (A) The partially broken expansion perspective view of the left shutter periphery. (B) The partially broken expansion perspective view for demonstrating operation | movement of a left shutter. (C) The partially broken expansion perspective view for demonstrating operation | movement of a left shutter. The front view which shows the other example of an indoor unit. The perspective view which shows the other example of an indoor unit.

<Outline of configuration of air conditioner>
As shown in FIG. 1, an air conditioner 1 according to an embodiment of the present invention includes an indoor unit 2 attached to an indoor wall W and an outdoor unit 3 installed outside the room. The indoor unit 2 and the outdoor unit 3 are connected by a collective connection pipe 4 that collects refrigerant pipes, humidification hoses, transmission lines, communication lines, and the like.

  The air conditioner 1 includes a refrigerant circuit to perform heat exchange and perform indoor air conditioning. The refrigerant circuit includes, for example, an indoor heat exchanger of the indoor unit 2 (functions as an evaporator during cooling / a condenser during heating), and a compressor and outdoor heat exchanger of the outdoor unit 3 (condenses during cooling). And function as an evaporator during heating / heating) and an expansion valve and the like are connected by a refrigerant pipe in the collective connection pipe 4. In addition, in order to control the air conditioner 1, an electrical component box for receiving a command from a control terminal such as the remote controller 5 and controlling indoor equipment such as a fan motor of the indoor unit 2 is provided in the indoor unit 2. The outdoor unit 3 is provided with an electrical component box for controlling outdoor equipment such as a fan motor of the outdoor unit 3. The electrical component box of the indoor unit 2 and the electrical equipment box of the outdoor unit 3 are connected by the transmission line through the inside of the set communication pipe 4.

<Overview of indoor unit configuration>
FIG. 2 shows the front of the indoor unit, and FIG. 3 shows the right side of the indoor unit. As shown in FIGS. 1, 2 and 3, the indoor unit 2 includes a casing body 6, a horizontal flap 11, a left shutter 20a and a right shutter 20b. The indoor unit 2 includes an indoor side heat exchanger (not shown), an indoor fan 9, and a vertical louver 12 inside the casing body 6.

  The casing body 6 of the indoor unit 2 is a substantially rectangular parallelepiped member that is long in the horizontal direction. In the indoor unit 2, five surfaces other than the front surface 2a, the left side surface 2b, the right side surface 2c, the top surface 2d and the bottom surface 2e, that is, the back surface 2f of the casing body 6 are covered with the decorative panel 6a. The direction perpendicular to the left side surface 2b and the right side surface 2c of the indoor unit 2, that is, the direction along the longitudinal direction DrL of the indoor unit 2 may be referred to as the left-right direction, and the right hand in the front view is the right direction and the left hand in the front view is the left Become a direction. Further, the direction from the back surface 2f of the indoor unit 2 to the front surface 2a (front surface) is referred to as the front, and the direction from the top surface 2d to the bottom surface 2e is referred to as the downward direction.

  An air outlet 7 for blowing out conditioned air is formed from the bottom surface 2e of the casing body 6 to the left side surface 2b and the right side surface 2c, and a suction port 8 for sucking room air is formed in the top surface 2d. Details of the air outlet 7 will be described later.

  As shown in FIG. 3, a cross flow fan 9 is provided inside the casing body 6 of the indoor unit 2 near the back side of the substantially center of the casing body 6 in a side view. In the front view, as shown in FIG. 2, the cross flow fan 9 has the same length as the suction port 8 and is long and horizontally along the longitudinal direction DrL of the indoor unit 2 (casing body 6). Has been placed.

  Further, on the upstream side of the cross flow fan 9 in the casing body 6, an indoor-side heat exchanger (not shown) having an inverted V shape in a side view is arranged and before being sucked into the cross flow fan 9. Air conditioning is performed by passing indoor air through the indoor heat exchanger. Thus, the indoor air is efficiently conditioned by sucking the indoor air and blowing out the conditioned air by the cross flow fan 9 extending long in the longitudinal direction of the casing body 6. Therefore, the indoor heat exchanger is also formed in a shape that extends in the longitudinal direction of the casing body 6, and is disposed between the inlet 8 and the outlet 7 that extends in the longitudinal direction. An air filter (not shown) is provided upstream of the indoor heat exchanger, and dust larger than the gap of the air filter is completely removed from the conditioned air guided to the cross flow fan 9.

  In the indoor unit 2 shown in FIG. 1, indoor air is not sucked from the front surface 2 a, and the indoor unit 2 sucks indoor air exclusively from the suction port 8 of the top surface 2 d of the casing body 6. Therefore, circulation of indoor air inside the indoor unit 2 is performed from the side of the top surface 2d of the indoor unit 2 toward the side of the bottom surface 2e of the indoor unit 2. That is, the indoor air sucked from the suction port 8 on the top surface 2d of the casing body 6 sequentially passes through the air filter and the indoor heat exchanger, and is sent out to the blowing passage 10 by the crossflow fan 9, and the vertical louver 12 The direction of the airflow is adjusted by the horizontal flap 11 and blown out from the outlet 7 on the bottom surface 2 e of the casing body 6.

  As shown in FIGS. 2 and 3, the outlet passage 10 includes a left side wall 10a, a right side wall 10b, a rear guide surface 10c, and a front guide surface 10d. The rear guide surface 10c of the blow-out passage 10 has a smooth curve having a center of curvature on the side of the cross flow fan 9 in a side view, and the radius of curvature increases toward the lower side. The distance between the rear guide surface 10 c and the front guide surface 10 d increases as the distance from the air outlet 7 increases, and increases as the opening of the air outlet passage 10 approaches the air outlet 7. Further, since the cross flow fan 9 is rotated clockwise as viewed from the right side and its central axis is arranged toward the rear surface 2f, the blowout passage 10 is located on the front side of the bottom surface 2e. It is formed obliquely toward Therefore, the conditioned air stream from the outlet passage 10 toward the outlet 7 has a directional vector directed downward and a directional vector directed forward, and is a laminar flow with less turbulence.

<Configuration around the outlet>
As shown in FIG. 4, the air outlet 7 includes a central air outlet 7a, a left side air outlet 7b, and a right side air outlet 7c. The outlet passage 10 is divided into a central outlet passage 10A connected to the central outlet 7a, a left outlet passage 10B connected to the left side outlet 7b, and a right outlet passage 10C connected to the right side outlet 7c. The central outlet passage 10A and the left outlet passage 10B are partitioned by a storage portion 25a, and the central outlet passage 10A and the right outlet passage 10C are partitioned by a storage portion 25b, but the central outlet passage 10A and the left outlet passage 10B. And the right outlet passage 10C communicate with each other. The central air outlet 7a is opened and closed by the horizontal flap 11, the left air outlet 7b is opened and closed by the left shutter 20a, and the right air outlet 7c is opened and closed by the right shutter 20b.

  In the indoor unit 2, when the operation is stopped, the horizontal flap 11 is closed and the opening surface 16 of the central outlet 7a is closed, and during operation, the horizontal flap 11 is opened and the opening surface 16 of the central outlet 7a is opened. FIG. 1 shows a state in which the horizontal flap 11 of the central outlet 7a is open, and FIG. 3 shows a state in which the horizontal flap 11 is closed.

  The vertical louver 12 disposed in the blowout passage 10 includes a plurality of blades classified into a left main vertical louver 12a, a right main vertical louver 12b, a left side vertical louver 12c, and a right side vertical louver 12d (see FIG. 4). ). As shown in FIG. 5, the vertical louver 12 is divided into a left louver 19a and a right louver 19b, which are connected by different connecting rods 13a and 13b. The left louver 19a includes a left main vertical louver 12a and a left side vertical louver 12c, and the right louver 19b includes a right main vertical louver 12b and a right side vertical louver 12d. Since the connecting rods 13a and 13b are independently driven from the stepping motors 13c and 13d via the arms 13e and 13f, the left louver 19a and the right louver 19b are independent of each other in the longitudinal direction of the casing body 6. Can be swung left and right about a plane perpendicular to the center. Therefore, by controlling the rotation of the stepping motors 13c and 13d, the left main vertical louver 12a and the left side vertical louver 12c, and the right main vertical louver 12b and the right side vertical louver 12d are stopped at an arbitrary angle after swinging. Thus, the conditioned air blowing direction in the left-right direction of the indoor unit 2 can be adjusted.

  In the state shown in FIG. 4, the left side vertical louver 12c and the right side vertical louver 12d are stopped at an angle that does not lead conditioned air to the opened left side outlet 7b and right side outlet 7c. The relationship between the inclination of the vertical louver 12 and the opening and closing of the left side outlet 7b and the right side outlet 7c is as follows. The state of FIG. Does not appear when driving.

  For example, when only the central air outlet 7a is opened and conditioned air is to be concentrated on the central air outlet 7a, the blade surfaces of the left louver 19a and the right louver 19b are in a state of being perpendicular to the longitudinal direction. (FIG. 5A).

  When it is desired to guide the conditioned air toward the right, as shown in FIG. 5B, when the stepping motors 13c and 13d are rotated clockwise, the arms 13e and 13f are rotated around the fulcrums 13g and 13h. The arms 13e and 13f push the connecting rods 13a and 13b to the right, and the vertical louver 12 is tilted to the right.

  The inclination of the vertical louver 12 can be stopped at a desired position by controlling the rotation angle of the stepping motors 13c and 13d. For example, when the state shown in FIG. 5C is rotated by an angle smaller than the rotation angle of the stepping motors 13c and 13d shown in FIG. 5B, the inclination of the angle β smaller than the angle α shown in FIG. The vertical louver 12 can be provided.

  The connecting rod 13a, the stepping motor 13c and the arm 13e shown in FIG. 5 constitute the left louver driving portion 42a of the vertical louver driving mechanism 42, and the connecting rod 13b, the stepping motor 13d and the arm 13f are driven to the right louver of the vertical louver driving mechanism 42. Part 42b is configured.

<Control unit>
By adjusting the blowing direction of the horizontal flap 11 and the vertical louver 12 as described above, adjusting the wind speed of the cross flow fan 9, and opening and closing the left shutter 20a and the right shutter 20b, it is possible to appropriately adapt to the indoor form and the indoor situation. A conditioned air flow for air conditioning can be generated. That is, the horizontal flap 11, the vertical louver 12, the cross flow fan 9, the left shutter 20a and the right shutter 20b, and a mechanism for driving them constitute an airflow adjusting device. In order to control the airflow control device including the horizontal flap 11, the vertical louver 12, the cross flow fan 9, the left shutter 20a, and the right shutter 20b, a control unit 30 as shown in FIG. 6 is provided.

  The control unit 30 includes an indoor control unit 31 for controlling each device of the indoor unit 2 and an outdoor control unit 32 for controlling each device of the outdoor unit, and the indoor control unit 31 and the outdoor control unit. 32 is connected by a signal line 33.

  The outdoor control unit 32 is connected to a compressor 34, an outdoor electric expansion valve 35, a four-way switching valve 36, an outdoor fan 37, a plurality of pressure sensors 38, a plurality of temperature sensors 39, and the like. The outdoor control unit 32 controls the operation switching such as switching between the heating operation and the cooling operation by switching the circulation path of the refrigerant flowing through the refrigeration circuit by switching the four-way switching valve 36. The outdoor control unit 32 controls, for example, the refrigerant circulation amount of the refrigerant circuit by controlling the rotation speed of the compressor 34, and controls the pressure of the refrigerant flowing through the refrigerant circuit by controlling the opening degree of the outdoor electric expansion valve 35. To do. The outdoor control unit 32 controls the heat exchange efficiency in the outdoor heat exchanger by controlling the rotational speed of the outdoor fan 37. Therefore, the outdoor control unit 32 uses the temperature and pressure of each part detected by a plurality of pressure sensors 38 and temperature sensors 39 installed in the refrigerant circuit and each device for judgment for control.

  On the other hand, the indoor control unit 31 is connected to a transmission / reception unit 40, a horizontal flap drive mechanism 41, a vertical louver drive mechanism 42, a shutter drive mechanism 49, a crossflow fan motor 43, a temperature sensor 44, a display unit 45, and the like. . The indoor control unit 31 transmits and receives data between the user's remote controller 5 and the transmission / reception unit 40 for control. The indoor control unit 31 controls the horizontal flap drive mechanism 41, the vertical louver drive mechanism 42, and the crossflow fan motor 43 in accordance with the indoor state and the user's settings, and the angle and swing of the horizontal flap 11 and the vertical louver 12 are controlled. The state of movement and the rotational speed of the motor 43 for the cross flow fan can be adjusted to change the blowing direction and the strength of blowing the conditioned air. The indoor control unit 31 uses state information such as the temperature of each part detected by a plurality of temperature sensors 44 installed in the refrigerant circuit and each device for judgment for control. Further, the indoor control unit 31 notifies the user of the setting state and environment of the indoor unit 2 via the display unit 45.

  The horizontal flap drive mechanism 41 controlled by the indoor control unit 31 drives the left support arm drive unit 46, the right support arm drive unit 47, and the intermediate support arm so that the horizontal flap 11 can be driven out and stored. A portion 48 is provided. The indoor control unit 31 controls the movement amount of the left support arm 53a and the movement amount of the right support arm 53b to be the same when moving the horizontal flap 11 in parallel, so that the horizontal flap 11 moves in parallel. The intermediate support arm 53c is caused to follow the movement of the left support arm 53a and the right support arm 53b.

  When the horizontal flap 11 is released from the state in which the air outlet 7 is blocked, and the horizontal flap 11 is brought into a desired state, the indoor control unit 31 first performs the left support arm drive unit 46 and the right support arm drive unit 47 to the left. The support arm 53a and the right support arm 53b are driven. The air outlet 7 that has been blocked by the ejection of the horizontal flap 11 is opened. At this time, the intermediate support arm driving unit 48 operates to eject the horizontal flap 11 against the opening surface 16 of the central air outlet 7a. Following this, the rotating arm 58a is rotated. Thereby, the horizontal flap 11 is smoothly opened from the air outlet 7 without being rubbed strongly around the air outlet 7.

  Next, the left support arm 53a and the right support arm 53b are fixed, and the intermediate support arm driving unit 48 rotates the rotation arm 58a to connect the left support arm 53a and the right support arm 53b. The horizontal flap 11 is rotated around an axis connecting the connecting portion. The horizontal flap 11 can be moved to a desired state by the two-step operation of the parallel movement and the rotational movement as described above. The indoor control unit 31 performs control so that the horizontal flap 11 is moved to a desired state in one step by performing the two-step operation as described above in parallel and performing the rotational movement while performing the parallel movement. You can also The operations of the left support arm 53a, right support arm 53b, and intermediate support arm 53c and the specific posture control of the horizontal flap 11 will be described later.

  The shutter driving mechanism 49 is a mechanism for driving the left shutter 20a and the right shutter 20b, and a like shutter drive mechanism drive motor and the shutter drive arm which will be described later. The controller 30 controls the opening and closing of the left shutter 20a and the right shutter 20b by controlling the driving of the shutter drive mechanism 49. The left and right shutters 20a and 20b can be opened and closed independently by the shutter drive mechanism 49, and can be controlled by the control unit 30 independently.

<Horizontal flap>
FIG. 7 is a perspective view showing the appearance of the horizontal flap 11 and the surrounding structure. The horizontal flap 11 is suspended from a mounting plate 60 that forms the lower side of the indoor unit 2. The mounting plate 60 is disposed above the opening surface 16 of the central air outlet 7a so that the central air outlet 7a can be closed by the horizontal flap 11 attached to the mounting plate 60, and is guided forward of the air outlet passage 10. It arrange | positions at the surface 10d side.

  The left support arm drive unit 46 of the horizontal flap drive mechanism 41 includes a drive motor 54a as a drive source, and a pinion gear 52a is attached to the drive shaft 55a of the drive motor 54a. The pinion gear 52a meshes with the rack gear 56a at the opening 61a of the mounting plate 60, and the amount of protrusion of the left support arm 53a on which the rack gear 56a is formed is controlled by the rotational speed of the pinion gear 52a. For this purpose, a stepping motor is used as the drive motor 54a, the left support arm 53a is slidably inserted into the guide groove 62a, and the left support arm 53a moves into the guide groove 62a as the drive motor 54a rotates. Slide The tip of the left support arm 53a is pivotally supported by a rotation shaft 57a fixed to the connecting portion 11p of the horizontal flap 11.

  Similarly, the right support arm drive unit 47 includes a drive motor 54b as a drive source. As the drive motor 54b rotates, the right support arm 53b slides in the guide groove 62b, and the right support arm 53b The amount of protrusion is controlled by the number of rotations of the drive motor 54b. Note that the pinion gear of the right support arm drive unit 47 meshed with the opening 61b is not shown. The tip of the right support arm 53b is also pivotally supported by a rotation shaft (not shown) fixed to the connecting portion 11q of the horizontal flap 11.

  The intermediate support arm drive unit 48 includes a drive motor 54c as a drive source. The drive motor 54c is attached to the rotating arm 58a of the intermediate support arm 53c in order to drive the intermediate support arm 53c. The rotating arm 58a is connected to the swing arm 58b by a movable shaft (not shown) (see FIG. 8C). The swing arm 58b is pivotally supported at the connecting portion 11r of the horizontal flap 11 so as to be swingable. The horizontal flap 11 is mainly rotated by rotating the swing arm 58b around the rotation axis of the drive motor 54c.

  FIG. 8 is a view schematically showing a cross section in the vicinity of the air outlet as viewed from the side surface in order to explain the operation of the horizontal flap. FIG. 8A shows a state where the operation of the air conditioner 1 is stopped and the horizontal flap 11 is fully closed. At this time, the left support arm 53a and the right supporting arm 53b is a movable range horizontal flap 11 is smoothly housed so corbel amount is minimized. In order to house the left support arm 53a, the drive motor 54a drives the pinion gear 52a to rotate counterclockwise as viewed from the right to retract the left support arm 53a. In order to house the right support arm 53b, the drive motor 54b is driven to rotate the pinion gear counterclockwise as viewed from the right to retract the right support arm 53b. At that time, the driving motor 54c rotates the pivot arm 58a counterclockwise as viewed from the right to pull up the swing arm 58b and lift the rear end side of the horizontal flap 11 upward. Each of the drive motors 54a, 54b, 54c continues to generate a drive force even after the horizontal flap 11 contacts the casing body 6. However, since the horizontal flap 11 is in contact with the casing body 6, the rack gears 56a and 56b and the rotating arm 58a do not move. In this way, the tightening is a process in which the driving motors 54a, 54b, 54c generate a driving force even after the rack gears 56a, 56b and the rotating arm 58a do not move. By performing such tightening, the central air outlet 7a can be reliably closed by the horizontal flap 11.

  FIG. 8B shows a state in which the horizontal flap 11 is most rotated clockwise as viewed from the right after the horizontal flap 11 is opened. In the following description, a state in which the horizontal flap 11 is rotated most clockwise is referred to as a roll-up state. In order to be in the roll-up state, the left support arm 53a and the right support arm 53b must protrude to the point where the horizontal flap 11 does not hit the casing body 6 even in the roll-up state. In the state shown in FIG. 8B, the left support arm 53a and the right support arm 53b are pushed out until the horizontal flap 11 does not hit the casing body 6, but the amount of the push is reduced as much as possible. State. In the following description, a state in which the amount of protrusion of the left support arm 53a and the right support arm 53b is minimized as long as the horizontal flap 11 does not hit the casing body 6 in any posture is referred to as an arm upper position. In this arm upper position, the horizontal flap 11 does not contact the casing body 6 at any angle of the horizontal flap 11. In the roll-up state, the movable part other than the horizontal flap 11 hits any part and causes the structure to stop moving any more. When such a structural hit occurs, the horizontal flap 11 in FIG. 8A is tightened to position the horizontal flap 11, and in the case of FIG. 8B, the rotation angle of the horizontal flap 11 is determined. Criteria can be given.

  FIG. 8C shows a state in which the horizontal flap 11 is most rotated counterclockwise when viewed from the right at the upper arm position. In the following description, the state in which the horizontal flap 11 is most rotated counterclockwise is referred to as a roll-down state. In order to enter the roll-down state, the left support arm 53a and the right support arm 53b must protrude until the horizontal flap 11 does not hit the casing body 6 even in the roll-down state. Even in the roll-down state, the movable part other than the horizontal flap 11 hits any part and causes a structure hit that does not move any more. The horizontal flap 11 can be positioned by retightening when such a structural hit occurs, and a reference for the rotation angle of the horizontal flap 11 can be given in the same manner as in FIG. Accordingly, the control unit 30 can be accurately controlled while grasping the rotation angle of the horizontal flap 11 by using either or both shown in FIG. 8 (c) and FIG. 8 (b).

  FIG. 8D shows the state of the horizontal flap during operation at the arm upper position. When operating in the roll-up state of FIG. 8 (b) or the roll-down state of FIG. 8 (c), the structure hits and deteriorates quickly due to the influence of vibration and the like. Driving is performed using an angle between the angle rotated slightly counterclockwise and the angle rotated slightly clockwise than the roll-down state.

  FIG. 8E shows a state in which the horizontal flap 11 is most rotated counterclockwise as viewed from the right after the horizontal flap 11 is opened (roll-down state). In the state shown in FIG. 8 (e), the left support arm 53a and the right support arm 53b are pushed out until the horizontal flap 11 does not hit the casing body 6, but the amount of the push out is increased as much as possible. State. In the following description, the state in which the amount of protrusion of the left support arm 53a and the right support arm 53b is maximum is referred to as an arm lower position. In this arm lower position, the horizontal flap 11 does not contact the casing body 6 at any angle of the horizontal flap 11. In the roll-down state, the movable part other than the horizontal flap 11 hits any part and causes a structure hit that does not move any more. Therefore, the horizontal flap 11 is positioned by tightening when it is raised, and the reference of the rotation angle of the horizontal flap 11 can be given also in the case of FIG. 8 (e). It is possible to accurately control the rotational angle of the horizontal flap 11 by using (e).

  At the lower arm position, the amount of protrusion of the left support arm 53a and the right support arm 53b is maximized. Therefore, when the length of the horizontal flap 11 is added to the left support arm 53a and the right support arm 53b, The possibility of the horizontal flap 11 hitting the furniture to be arranged increases. Therefore, the roll-up state is prohibited at the arm lower position.

  FIG. 8F shows the state of the horizontal flap during operation at the arm lower position. When operating in the roll-down state of FIG. 8 (e), the structure hits and deteriorates quickly due to the influence of vibration etc., so use an angle that is rotated slightly clockwise than the roll-down state. Driving is performed.

<Relationship between horizontal flap and shutter>
FIG. 9 is an enlarged view of a part of the periphery of the left shutter, in order to explain the configuration near the left shutter. FIG. 9A shows a state in which a part of the periphery of the left shutter when the left shutter 20a and the horizontal flap 11 are closed is broken and enlarged. In FIG. 9B, the position when the left shutter 20a is opened is indicated by a one-dot chain line.

  The left shutter 20a shown in FIG. 9A is driven while being supported by the support member 23. When the left side outlet 7b is opened, the left shutter 20a rotates counterclockwise and is stored in the storage portion 25a. A driving force is applied to the support member 23 from a stepping motor (not shown) controlled by the control unit 30. A slit 26d for moving the support member 23 is formed in the storage portion 25a, one end 23a of the support member 23 is fixed to the left shutter 20a, and the other end 23b is attached to the rotating shaft. Therefore, the rotation of the left shutter 20a is centered on the other end 23b. Accommodating portion 25a, an opening is deformed into a substantially U-shaped configuration of which facing down cavity 26c of the left shutter 20a enters is formed in the center. On the upper end portion 26a of the storage portion 25a, there is a left outlet passage 10B connected to the left side outlet 7b. Since the left shutter 20a rotates and fits in the substantially U-shaped cavity 26c, the cavity 26c is inclined obliquely in a front view, so that the distance between the lower end portion 26b and the upper end portion 26a of the storage portion 25a is reduced, and the left side The opening area of the left outlet passage 10B connected to the outlet 7b can be increased.

  Moreover, the casing main body 6 has the recessed part 15a in the left side outlet 7b vicinity (refer FIG.10 (b)). The left shutter 20a in the closed state is fitted into the recess 15a. Similarly, a recess (not shown) that accommodates the right shutter 20b is also provided in the vicinity of the right side outlet 7c. Further, the recess 15a is configured such that the left shutter 20a and the right shutter 20b and the casing body 6 are arranged substantially continuously when the left shutter 20a and the right shutter 20b are in the closed state. For this reason, when the left shutter 20a and the right shutter 20b are in the closed state, the outer surfaces of the left shutter 20a and the right shutter 20b and the outer surface of the casing body 6 are arranged substantially in a single plane.

  As shown in FIG. 9A, when the left shutter 20a and the horizontal flap 11 are both closed, they are adjacent to each other without overlapping. However, when the horizontal flap 11 is closed and is in the state of FIG. 9A, the left shutter 20a cannot be opened by hitting the horizontal flap 11 even if the left shutter 20a is opened to open the left side outlet 17b. This is because the horizontal flap 11 exists in the operation area of the left shutter 20a as shown in FIG. In FIG. 9B, the position of the left shutter 20a indicated by the alternate long and short dash line is the position when the left shutter 20a is moved so as to open the left side outlet 7b.

  However, by extending the horizontal flap 11 up to the first end 90a of the left shutter 20a, the left end 11a of the horizontal flap 11 can be extended to a position beyond the lower side of the storage portion 25a to the left. is made of. If the left end portion 11a of the horizontal flap 11 does not enter the operating area of the left shutter 20a, the horizontal flap 111 shortened to the extent shown in FIG. 9C must be used.

  Opening a long horizontal flap 11 as shown in FIG. 9 (a), the as shown in FIG. 10 (a) and FIG. 10 (b), the allowing opening and closing of the left shutter 20a. The opening / closing in this way is possible because the horizontal flap 11 is retracted from the moving range of the left shutter 20a, and the moving range of the left shutter 20a is no longer obstructed.

  The difference in the direction of the conditioned air flow when the horizontal flap is extended to the position where it enters the operating area of the left shutter 20a and when it is shortened so as not to enter the operating area will be described with reference to FIGS. The horizontal flap 111 shown in FIG. 11 is shortened so as not to interfere with the left shutter 20a.

  10 (a) and 10 (b), the direction of the airflow when the conditioned air is sent forward using the horizontal flap 11 is indicated by a solid arrow, and the conditioned air is sent in the left-right direction. The direction of airflow is indicated by dotted arrows. Similarly, in FIGS. 11 (a) and 11 (b), the direction of the air flow when the conditioned air is sent forward using the horizontal flap 111 is indicated by a solid arrow, and the conditioned air is moved in the left-right direction. The direction of the airflow when sending is indicated by a dotted arrow.

  FIG. 10A and FIG. 11A show a state in which the left shutter 20a is closed and the left side outlet 7b is closed, and the airflow shown by such a solid line is generated. The state, that is, the state where the vertical louver 12 is perpendicular to the longitudinal direction is shown. In this case, it is almost the same area used for horizontal flap 11 is also to change the air flow of conditioned air in the horizontal flap 11 also FIG 11 (a) of FIG. 10 (a). That is, when the conditioned air is blown forward, the portion where the horizontal flap 11 is longer than the horizontal flap 111 hardly functions. Therefore, there is almost no difference in performance when two horizontal flaps 11 and 111 are used.

  FIG. 10B and FIG. 11B show a state in which the left shutter 20a is opened and the left side outlet 7b is opened, and a state in which an airflow indicated by such a dotted line is generated. That is, the blade surface of the vertical louver 12 is tilted to the left with respect to the direction perpendicular to the longitudinal direction. In this case, the horizontal flap 11 in FIG. 10A can be guided in the left-right direction using the extended portion 11m. However, since the horizontal flap 111 in FIG. 11A does not have a portion corresponding to the extended portion 11m of the horizontal flap 11, the horizontal flap 111 cannot be sufficiently guided in the left-right direction and is blown out to the left diagonally forward. The air flow of conditioned air will increase. Therefore, in the state of FIG. 11B, the conditioned air flow in the direction in which the left side surface 2 b of the casing body 6 faces is smaller than the state of FIG.

<Operation control of horizontal flap and shutter>
As already mentioned in the above description, since the horizontal flaps 11 and 11A are formed to be long from side to side, the left shutters 20a and 20Aa and the right shutter can be opened when the horizontal flaps 11 and 11A are closed. I can't. Even if the horizontal flaps 11 and 11A are to be closed, they cannot be closed when the left shutters 20a and 20Aa and the right shutter are open. Therefore, the horizontal flap and shutter operation control when the horizontal flaps 11 and 11A are on the shutter flow line will be described.

(Opening the shutter)
FIG. 12 is a flowchart for explaining the operation when the horizontal flap and the shutter are opened. The operation will be described with reference to the flowchart of FIG. 12 taking the air conditioner 1 shown in FIG. 1 as an example. First, the case where the operation of the air conditioner 1 is stopped and the horizontal flap 11 and the left shutter 20a and the right shutter 20b of the indoor unit 2 are in a closed state will be described.

  In step S1, it is assumed that the indoor unit 2 is instructed to perform the cooling operation from the remote controller 5. Further, it is assumed that not only the horizontal flap 11 but also the left shutter 20a and the right shutter 20b need to be opened in this cooling operation command content. The transmission / reception unit 40 of the indoor unit 2 receives the instruction signal from the remote controller 5 and transmits the command content to the CPU 31a of the indoor control unit 31 (see FIG. 6).

  In the CPU 31a, the fully closed state of the horizontal flap 11 is confirmed (step S2). Continuously or simultaneously, the CPU 31a confirms the fully closed state of the left shutter 20a and the right shutter 20b. The air conditioner 1 or the indoor unit 2 normally closes the horizontal flap 111, the left shutter 20a, and the right shutter 20b when stopped. Accordingly, the CPU 31a confirms these fully closed states by storing information on whether or not a situation has occurred in which an abnormality has occurred and the fully closed state has not occurred in the previous stop of the air conditioner 1 or the stop of the indoor unit 2. It begins from the place acquired from the part 31b. When the horizontal flap 11, the left shutter 20a, and the right shutter 20b are closed without abnormality, the CPU 31a causes the horizontal flap 11, the left shutter 20a, and the right shutter 20b to be closed by the horizontal flap drive mechanism 41 and the shutter drive mechanism 49. Retightening is performed, and the fully closed state of the horizontal flap 11, the left shutter 20a, and the right shutter 20b is determined, and the reference position for subsequent operations is determined.

  Next, according to the sequence stored in the storage unit 31b, the CPU 31a causes the left support arm 53a and the right support arm 53b of the horizontal flap 11 to be pushed out, and causes the intermediate support arm 53c to follow, so that the horizontal flap 11 is centered. The horizontal flap 11 is opened to a predetermined position while maintaining a state parallel to the opening surface of the air outlet 7a. Furthermore, the horizontal flap 11 is continuously moved, and the horizontal flap 11 is moved toward the roll-up state or the roll-down state beyond the first predetermined position (Step S4).

  After starting the operation of the horizontal flap 11, the CPU 31a gives the driving force to the left support arm 53a, the right support arm 53b, and the intermediate support arm 53c by rotating the drive motors 54a, 54b, 54c by a predetermined number of revolutions. At the time, that is, when the first predetermined position is passed, the operations of the left shutter 20a and the right shutter 20b are started. The horizontal flap 11 may be on the flow line of the left shutter 20a and the right shutter 20b at the first predetermined position. Since the horizontal flap 11 continues to move, it is sufficient that the horizontal flap 11 retracts from the position before the left shutter 20a and the right shutter 20b reach the horizontal flap 11 at the first predetermined position (step S5). ). Thus, by starting the operation at an early stage when the horizontal flap 11 is on the flow line of the left shutter 20a and the right shutter 20b, it becomes difficult for the user to feel a delay in the movement of the left shutter 20a and the right shutter 20b, and it is slow. Uncomfortable feeling felt by the user can be reduced by simple operation.

  The horizontal flap 11 continues to move and enters a roll-up state or a roll-down state. At this time, the left support arm 53a and the right support arm 53b are compressed by a predetermined amount according to the control of the number of rotations of the drive motors 54a and 54b, for example, an amount necessary to be positioned at the upper arm position. I'm out. Then, the horizontal flap 11 is further tightened from the roll-up state (or roll-down state), and the CPU 31a confirms that the horizontal flap 11 has reached the roll-up state or the roll-down state (step S6).

  On the other hand, the opening operation of the left shutter 20a and the right shutter 20b is continued until the fully opened state is reached. Then, although the structure hit occurs in the fully opened state, the CPU 31a rotates the stepping motor that drives the support member 23 so that the rotation angle is further increased from the rotation angle at which the structure hit occurs according to the sequence read from the storage unit 31b. Instruct. By retightening after the left shutter 20a and the right shutter 20b are opened, the CPU 31a confirms the fully opened state of the left shutter 20a and the right shutter 20b (step S7).

  The horizontal flap 11 moves from the roll-up state or the roll-down state to a position designated by the remote controller 5 (step S8).

(Operation to close the shutter)
FIG. 13 is a flowchart for explaining the operation when the horizontal flap and the shutter are closed. The operation will be described with reference to the flowchart of FIG. 13 taking the air conditioner 1 shown in FIG. 1 as an example. First, the case where the air conditioner 1 is in operation and the horizontal flap 11, the left shutter 20a, and the right shutter 20b of the indoor unit 2 are open will be described.

  In step S <b> 1, an operation stop command is transmitted from the remote controller 5 to the CPU 31 a of the control unit 30 via the transmission / reception unit 40.

  Receiving the operation stop command, the CPU 31a recognizes the fully opened state of the left shutter 20a and the right shutter 20b from information on the state of the left shutter 20a and the right shutter 20b stored in the storage unit 31b. Thereafter or in parallel, the state of the horizontal flap 11 is recognized from information on the state of the horizontal flap 11 stored in the storage unit 31b.

  Next, an operation of closing the left shutter 20a and the right shutter 20b is started (step S13). Operations left shutter 20a and the right shutter 20b is closed is performed under control of the CPU31a of the control unit 30 has a speed corresponding to the rotation of the stepping motor. For example, when starting to close, the stepping motor is rotated relatively quickly and at a constant speed, and when the left shutter 20a and the right shutter 20b are almost closed, the speed is decreased and the control is performed so that the shutter is completely closed until it hits slowly. (Step S15).

  In the case of the control as in the above example, if the horizontal flap 11 starts to close a little later than the time when the left shutter 20a and the right shutter 20b start to close, the horizontal flap 11 catches up with the left shutter 20a and the right shutter 20b as soon as possible. Mutual collisions can be avoided unless they are moved. For this purpose, the operation of closing the horizontal flap 11 is performed by rotating the drive motors 54a, 54b, 54c at the adjusted speed. The operation of closing the horizontal flap 11 is performed after the second predetermined position is exceeded from the time when the operation of closing the left shutter 20a and the right shutter 20b is started (step S14). However, it is preferable that the time for waiting for the passage of the second predetermined position is so short that the user feels that the time has started almost simultaneously.

  The horizontal flap 11 is closed slightly later than the left shutter 20a and the right shutter 20b, and the horizontal flap 11 is tightened (step S16). Naturally, after the tightening of the left shutter 20a and the right shutter 20b (step S14) is completed, the tightening is started by closing the horizontal flap 11 to a position where it abuts. Thereby, the collision between the left shutter 20a and the right shutter 20b and the horizontal flap 11 can be completely avoided.

<Modification>
(1) In the above embodiment, the case of the wall-mounted indoor unit 2 has been described, but the type of the indoor unit is not limited to the wall-mounted type, and may be a ceiling-mounted type or a stationary type. It may be a type.

  (2) In the above embodiment, the next operation is performed after passing through the first predetermined position and the second predetermined position. However, the next operation may be performed instead of passing the position. Also in this case, it is preferable that the user feels as short as possible. For example, the time required for opening the horizontal flap 11 or the time required for closing the left shutter 20a and the right shutter 20b, for example, is 20%, preferably about 10%. Set short.

  (3) Although the case where the left shutter 20a and the right shutter 20b are simultaneously opened / closed has been described in the above embodiment, naturally, the left shutter 20a and the right shutter 20b may be opened / closed separately.

  For example, the left shutter 20 a and the right shutter 20 b are selectively opened and closed according to the inclination of the vertical louver 12. FIG. 14 is a schematic diagram showing the relationship between the inclination of the vertical louver 12 and the opening / closing of the left shutter 20a and the right shutter 20b when the indoor unit 2 is viewed from the top surface 2d side. Vertical louvers 12, connecting rod 13a is divided into left louvers 19a and right louvers 19b, is coupled to 13b, it is driven separately.

  FIG. 14A shows a state in which the blade surface of the vertical louver 12 is perpendicular to the longitudinal direction, and both the left shutter 20a and the right shutter 20b are closed. In the state in FIG. 14 (a), and blowing conditioned air toward the front, balloon conditioned air in the horizontal direction is not performed.

  FIG. 14B shows a state in which the blade surface of the vertical louver 12 is inclined to the right with respect to the longitudinal direction, the left shutter 20a is closed, and the right shutter 20b is open. In the state of FIG. 14B, the left shutter 20a is closed in order to blow out conditioned air to the right.

  FIG. 14C shows a state in which the blade surface of the vertical louver 12 is inclined leftward with respect to the longitudinal direction, the left shutter 20a is opened, and the right shutter 20b is closed. In the state of FIG. 14B, the right shutter 20b is closed in order to blow out conditioned air to the left.

  In FIG. 14D, the blade surface of the left louver 19a of the vertical louver 12 is tilted to the left with respect to the longitudinal direction, and the blade surface of the right louver 19b is tilted to the left with respect to the longitudinal direction. The left shutter 20a and the right shutter 20b are shown open. In the state of FIG. 14 (d), the for blowing conditioned air on both the left and right, left shutter 20a and the right shutter 20b is opened together.

  FIG. 14E shows a state in which the blade surface of the vertical louver 12 swings left and right with a state perpendicular to the longitudinal direction as a boundary, and both the left shutter 20a and the right shutter 20b are closed. In the state of FIG. 14 (e), when the left shutter 20a and the right shutter 20b are opened and closed in correspondence with the blade surfaces of the vertical louver 12, the opening and closing operation continues in accordance with the swing, so that the user feels uncomfortable. Because it gives, it is fixed in the closed state.

  14A to 14E, all the horizontal flaps 11 are in an open state. In order to realize the states of FIGS. 14B to 14D, the horizontal flap 11 is opened as described above, and then the left shutter 20a and the right shutter 20b are opened.

  Further, when an operation stop command is issued in any of the states shown in FIGS. 14B to 14D, the horizontal flap 11, the left shutter 20a, and the right shutter 20b are closed. When closing the horizontal flap 11, in the state shown in FIG. 14D, first, the left shutter 20a and the right shutter 20b are closed first, and then the horizontal flap 11 is closed. 14B and 14C, only one of the left shutter 20a and the right shutter 20b is opened, but the closing operation is the same as in FIG. 14D. Furthermore, in the case of FIGS. 14 (a) and 14 (e), the left shutter 20a and the right shutter 20b are already closed, so the operation of closing the horizontal flap 11 is the same as in the case of FIG. 14 (d). It can also be done at different speeds. However, in order to simplify the control, the closing operation may be performed at the same speed as in the case of FIG.

  (4) left shutter 20a shown in FIGS. 9 and 10 of the above embodiment was intended to be housed in the housing portion 25a provided inside the indoor unit 2. For this reason, the left shutter 20a has moved from the casing body 6 of the indoor unit 2 without protruding so much.

  However, the shutter may move so as to protrude from the outer shape of the casing body 6 as shown in FIG. 15, for example. FIGS. 15A, 15B, and 15C show the configuration and operation of another left shutter 20Aa. The left shutter 20Aa in FIG. 15 is configured such that the other end side 92A close to the left side surface 2Ae of the left side outlet 7Ab casing body 6 is greatly lowered and the one end side 91A is slightly raised.

  A thin portion 94A formed on one end side 91A of the left shutter 20Aa is configured to overlap the left end portion 11Aa of the horizontal flap 11A. Thereby, the central outlet 7a can be closed without a gap by the horizontal flap 11A and the left shutter 20Aa. Since the center of rotation of the left shutter 20Aa is also above the left shutter 20Aa, the flow line of the left shutter 20Aa is applied to the closed horizontal flap 11A, and the left shutter 20Aa is opened when the horizontal flap 11A is closed. I can't.

  Therefore, from the state where both the horizontal flap 11A and the left shutter 20Aa in FIG. 15A are closed, the horizontal flap 11A is opened first as shown in FIG. 15B, and then left as shown in FIG. 15C. It is necessary to perform the operation in the order of opening the shutter 20Aa.

  In this example, the overlap between the left shutter 20Aa and the horizontal flap 11A is limited to a narrow range of the thin wall portion 94A, but the length of the horizontal flap 11A is further extended to the left so that the left shutter 20Aa and the horizontal flap 11A You may increase the area which overlaps. In that case, the overlapping part does not necessarily have to be thinned, but by making the horizontal flap 11A and the left shutter 20Aa closed so that they are flush with each other, the external appearance becomes clean. The design property can be improved.

  Further, when the open end left shutter 20Aa, the posture during the operation of the horizontal flap 11A be varied, it does not collide to the left shutter 20Aa. Thus, after the left shutter 20Aa is opened, it is housed in a position where it does not collide with the horizontal flap 11A during operation.

  (5) In the said embodiment, the horizontal flap 11 was moved and opened substantially parallel with respect to the opening surface of the center blower outlet 7a. However, when only one of the left shutter 20a and the right shutter 20b is opened, as shown in FIGS. 16 and 17, the horizontal flap 11 is inclined so that only one of the shutters can be opened. It can also be taken. In this case, the control unit 30 controls the left support arm drive unit 46 and the right support arm drive unit 47 to make the amount of protrusion of the left support arm 53a and the right support arm 53b different. In FIG. 16, since the left shutter 20a is opened, the amount of protrusion of the left support arm 53a is increased, and the left side of the horizontal flap 11 is lowered. By taking the posture as shown in FIG. 16, it becomes easier to guide more conditioned air to the left side. In addition, by using a ball joint or the like for the connecting portion between the horizontal flap 11 and the left support arm 53a, the right support arm 53b, and the intermediate support arm 53c, the connecting portion can cope with the clockwise / counterclockwise operation in the front view. With this configuration, it is possible to cope with a movement in which the horizontal flap 11 is inclined obliquely in the left-right direction as shown in FIGS. 16 and 17.

<Features>
(A)
The indoor units 2, 2A, 2B include horizontal flaps 11, 11A, 11B, left shutters 20a, 20Aa, 20Ba and right shutters 20b, 20Bb on the casing bodies 6, 6A, 6B. The horizontal flaps 11, 11A, 11B are provided. It extends to the operation area of the left shutters 20a, 20Aa, 20Ba and the right shutters 20b, 20Bb. For this reason, more conditioned air can be guided in the left-right direction using the extending portions of the horizontal flaps 11, 11A, 11B. For example, the horizontal flap 11A can be further lengthened by overlapping a part like the horizontal flap 11A and the left shutter 20Aa in FIG. Further, like the horizontal flap 11B and the left shutter 20Ba and the right shutter 20Bb in FIG. 16, the left shutter 20Ba and the right shutter 20Bb may be overlapped so as to cover the whole, and the length of the horizontal flap is further increased. it can.

  On the other hand, as an adverse effect of lengthening the horizontal flaps 11, 11A, 11B, for example, when the horizontal flaps 11, 11A, 11B are closed, the horizontal flaps on the flow lines of the left shutters 20a, 20Aa, 20Ba and the right shutters 20b, 20Bb. Since 11, 11A and 11B are positioned, the left shutter 20a, 20Aa and 20Ba and the right shutter 20b and 20Bb cannot collide with the horizontal flaps 11, 11A and 11B.

  Therefore, when the control unit 30 opens the central air outlet 7a, the left air outlet 7b, and the right air outlet 7c, the horizontal flaps 11, 11A, 11B are more than the left shutters 20a, 20Aa, 20Ba and the right shutters 20b, 20Bb. The horizontal flap drive mechanism 41 and the shutter drive mechanism 49 are controlled so as to open first.

  Further, when the control unit 30 closes the central air outlet 7a, the left side air outlet 7b, and the right side air outlet 7c, the left shutters 20a, 20Aa, 20Ba and the right shutters 20b, 20Bb are located rather than the horizontal flaps 11, 11A, 11B. The horizontal flap drive mechanism 41 and the shutter drive mechanism 49 are controlled so as to be closed first.

  In this way, the movements of the horizontal flaps 11, 11A, 11B, the left shutters 20a, 20Aa, 20Ba and the right shutters 20b, 20Bb are smoothed by preventing interference such as collision by control.

  Incidentally, the horizontal flaps 11, 11A, 11B, the left shutters 20a, 20Aa, 20Ba and the right shutters 20b, 20Bb are in a positional relationship aligned on a straight line. When arranged in a straight line in this way, they tend to interfere with each other and control becomes difficult. However, by arranging in this way, the depth (length in the front-rear direction) of the indoor unit 2 is reduced, and the feeling of pressure given to the user when installed indoors is reduced.

(B)
The horizontal flap drive mechanism 41, when opening the horizontal flaps 11, 11A, 11B, maintains a state substantially parallel to the central air outlet 7a while maintaining the horizontal flap 11 in a direction substantially perpendicular to the central air outlet 7a. , 11A, 11B are moved. Since it has the mechanism moved in this way, the shape of the horizontal flaps 11, 11A, 11B can be made substantially equal to the shape of the central outlet 7a. Therefore, the size of the horizontal flaps 11, 11A, 11B can be ensured and the conditioned air induction performance by the horizontal flaps 11, 11A, 11B can be improved. Further, the gap 2w (see FIG. 2) when the central outlet 7a is blocked by the horizontal flaps 11, 11A, 11B can be reduced. Therefore, the designability can be improved. Further, for example, as shown in FIG. 3, the lower surfaces 2x, 2y, 2z of the indoor unit 2 can be flush with each other, and the boundary between the horizontal flap 11 and the surrounding casing body 6 is made inconspicuous. Thus, a beautiful appearance can be formed.

1, 1A Air conditioner 2, 2A, 2B Indoor unit 6, 6A, 6B Casing body 7 Air outlet 7a Central air outlet 7b Left air outlet 7c Right air outlet 11, 11A, 11B Horizontal flap 12 Vertical louver 20a, 20Aa , 20Ba Left shutter 20b, 20Bb Right shutter 30 Control unit

JP-A-8-178407

Claims (5)

A central air outlet for blowing conditioned air forward and a side air outlet for blowing conditioned air in either the left or right direction provided at at least one of the longitudinal ends of the central air outlet are formed. Casing body (6, 6A, 6B),
Shutters (20a, 20Aa, 20Ba, 20b, 20Bb) for opening and closing the side air outlets;
A flap (11, 11A) that is provided in front of the central air outlet along the longitudinal direction of the central air outlet, opens and closes the central air outlet, and adjusts the direction of conditioned air blown from the central air outlet. , 11B)
With
The air conditioner configured such that the shutter and the flap are configured to partially overlap each other in a state in which the side outlet and the central outlet are closed.   The air conditioner according to claim 1, wherein the shutter opens the side air outlet by rotating and moving toward the flap.   The air conditioner according to claim 2, wherein the shutter and the flap are driven so that the flap is opened first and then the shutter is opened.   The air conditioner according to claim 3, wherein the shutter and the flap are driven so that the shutter is closed first and then the flap is closed.   The air conditioner according to any one of claims 1 to 4, wherein the shutter (20Aa) and the flap (11A) are configured to be flush with each other in a closed state.

Images