JP4766168B2 - Air conditioner - Google Patents

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-right direction by adjusting the direction of the vertical louver. However, when configured in this manner, not only a small amount of airflow in the left-right direction is generated even when it is not desired to blow conditioned air in the left-right direction.

  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. However, the conditioned air blown out from the shutter fluctuates depending on the situation, and sometimes backflow occurs.

  The subject of this invention is reducing the malfunction which arises when opening a shutter in the air conditioning apparatus which has a shutter which blows off conditioned air to the left-right direction.

An air conditioner according to a first aspect of the present invention includes a casing body, a vertical louver, a shutter, and a control unit. A central air outlet and a side air outlet are formed in the casing body. The central outlet is for blowing conditioned air forward, and the side outlet is for blowing conditioned air in either the left or right direction. The side air outlet communicates with the central air outlet and is provided at at least one of the longitudinal ends of the central air outlet. The vertical louver is provided in an outlet passage connected to the central outlet, and adjusts the angle in the left-right direction of the airflow of conditioned air blown from the central outlet. The shutter is driven to open and close the side outlet. The control unit controls the driving of the shutter according to the direction of the vertical louver. The side outlet of the casing body includes a left side outlet and a right side outlet formed on the left and right of the central outlet. The shutter includes a left shutter that opens and closes the left side outlet and a right shutter that opens and closes the right side outlet. When the vertical louver is facing left, the left shutter is opened and the right shutter is closed, and when the vertical louver is facing right, the right shutter is opened and the left shutter is closed. When the vertical louver swings, the control unit performs control to stop driving the left shutter and the right shutter in preference to the control of the left shutter and the right shutter according to the direction of the vertical louver.

According to the present invention, when the vertical louver swings, the driving of the left shutter and the right shutter is stopped in preference to the control of the left shutter and the right shutter according to the direction of the vertical louver. As the operation is repeated, the operation of opening and closing the left shutter and the right shutter can be prevented from being repeated frequently.

An air conditioning apparatus according to the second aspect is the air conditioning apparatus of the first invention, the right shutter, Ru is driven independently of the left shutter. The control unit controls the driving of the left shutter and the right shutter independently of each other.

  According to the present invention, even when only one of the left shutter and the right shutter contributes to the conditioned air blowing, for example, when the conditioned air blowing direction is biased to one of the left direction and the right direction. Since the control unit controls the driving of the left shutter and the right shutter independently of each other, it is possible to cope with this. Since the number of cases that can be handled in this way can be increased, it is possible to increase the number of cases that can prevent problems related to opening and closing of the left shutter and the right shutter.

An air conditioner according to a third aspect is the air conditioner according to the first or second aspect, wherein the control unit controls the left shutter and the right shutter according to the direction of the vertical louver when the vertical louver swings. When the driving of the left shutter and the right shutter is stopped in preference to, the left shutter and the right shutter are kept open.

An air conditioner according to a fourth aspect is the air conditioner according to the first or second aspect, wherein the control unit controls the left shutter and the right shutter according to the direction of the vertical louver when the vertical louver swings. When the driving of the left shutter and the right shutter is stopped in preference to, the left shutter and the right shutter are kept closed.

An air conditioner according to a fifth aspect of the present invention includes a casing body, a vertical louver, a shutter, and a control unit. A central air outlet and a side air outlet are formed in the casing body. The central outlet is for blowing conditioned air forward, and the side outlet is for blowing conditioned air in either the left or right direction. The side air outlet communicates with the central air outlet and is provided at at least one of the longitudinal ends of the central air outlet. The vertical louver is provided in an outlet passage connected to the central outlet, and adjusts the angle in the left-right direction of the airflow of conditioned air blown from the central outlet. The shutter is driven to open and close the side outlet. The control unit controls the driving of the shutter according to the direction of the vertical louver. The side outlet of the casing body includes a left side outlet and a right side outlet formed on the left and right of the central outlet. The shutter includes a left shutter that opens and closes the left side outlet and a right shutter that opens and closes the right side outlet. The control unit includes a detection unit that detects the stop position of the vertical louver, and controls the driving of the shutter based on the detected angle of the vertical louver. When the vertical louver is facing left, the left shutter is opened and the right shutter is closed, and when the vertical louver is facing right, the right shutter is opened and the left shutter is closed. At this time, the control unit sets the angle of the vertical louver that exceeds the predetermined angle as the angle of the vertical louver in which the air volume or the velocity of the conditioned air blown from the shutter exceeds a predetermined value, and determines whether or not the angle of the shutter exceeds the boundary angle. Control the drive.

According to the present invention, when the vertical louver is directed leftward and no conditioned air flow is generated in the rightward direction, the control unit performs control to open the left shutter and close the right shutter, so that the right shutter is When it does not contribute to the blowing of conditioned air, it can be closed reliably. Similarly, when the vertical louver is directed to the right and no conditioned airflow is generated in the left direction, the control unit performs control to open the right shutter and close the left shutter, so that the left shutter is conditioned air. It can be closed reliably when it does not contribute to the balloon. At that time, the shutter can be closed when the conditioned air having a predetermined air volume or speed is not blown from the shutter.

  An air conditioner according to a sixth aspect of the present invention is the air conditioner according to the fifth aspect of the present invention, further comprising a stepping motor that drives the vertical louver. The control unit controls the stepping motor with a pulse signal, and the detection unit detects the angle of the vertical louver from the number of pulses of the pulse signal.

  According to the present invention, since the angle of the vertical louver is detected from the pulse signal of the stepping motor that drives the vertical louver, a sensor and a measuring device for detecting the angle of the vertical louver are not required.

An air conditioner according to a seventh aspect is the air conditioner according to any one of the first to sixth aspects, wherein the right shutter is driven independently of the left shutter . The vertical louvers include a left vertical louver and a right vertical louver that are driven independently of each other. The control unit controls driving of the left shutter according to the direction of the left vertical louver, and controls driving of the right shutter according to the direction of the right vertical louver.

  According to the present invention, when the vertical louver is divided into a left vertical louver and a right vertical louver and moves independently, the drive of the left shutter is controlled according to the direction of the left vertical louver that has the greatest influence on the left shutter, The right shutter drive is controlled according to the direction of the right vertical louver that has the greatest effect on the right shutter, so even if it is divided into a left vertical louver and a right vertical louver, it can be easily The direction outlet can be closed.

An air conditioner according to an eighth aspect of the present invention is the air conditioner according to any one of the first to seventh aspects of the present invention, further comprising a fan for generating an air current of conditioned air blown from the air outlet. The control unit controls the driving of the shutter based on the direction of the vertical louver and the rotational speed of the fan.

  According to the present invention, in addition to the direction of the vertical louver, the rotational speed of the fan is also considered in the shutter drive control, so that the side outlet can be closed according to the detailed classification of the conditions that cause the malfunction.

An air conditioner according to a ninth aspect of the present invention is the air conditioner according to any one of the first to eighth aspects of the present invention, comprising a horizontal flap for adjusting the vertical direction of the conditioned air blown from the central outlet. Further prepare. The control unit controls the driving of the shutter based on the direction of the vertical louver and the state of the horizontal flap.

  According to the present invention, in addition to the direction of the vertical louver, the state of the horizontal flap is also taken into account in the shutter drive control, so that the side outlet can be closed according to the detailed classification of the conditions causing the malfunction.

An air conditioner according to a tenth aspect of the present invention is the air conditioner according to the ninth aspect of the present invention, wherein the control unit uses at least one of the horizontal flap angle and the horizontal flap amount as the horizontal flap state.

  According to the present invention, in addition to the direction of the vertical louver, the angle of the horizontal flap and the amount of protrusion are also taken into account in the shutter drive control, so that the side air outlet is closed according to the detailed classification of the conditions causing the malfunction. Can do.

In the air conditioner according to the first , third, or fourth aspect of the invention , the operation of closing the left shutter and the right shutter is added to the control in order to reduce problems, so that the left frequently occurs when the vertical louver continues to swing. Although the shutter and the right shutter are opened and closed, it is possible to prevent the user from feeling uncomfortable by frequently opening and closing the left shutter and the right shutter by not performing such an operation.

  In the air conditioner according to the second aspect of the invention, the effect of reducing the defects can be further improved by increasing the number of cases that can prevent the problems that occur when the shutter is opened.

In the air conditioner of the fifth aspect of the invention, when conditioned air is not blown out from the shutter at a predetermined air volume or speed, for example, a backflow of air occurs in the left shutter and the right shutter, for example, to prevent problems deeply related to the air volume and wind speed. It will be possible .

  In the air conditioner according to the sixth aspect of the present invention, it is possible to reduce problems caused when the shutter is opened without adding a device such as a sensor, and it is possible to provide an inexpensive apparatus.

In the air conditioner according to the seventh aspect of the invention, the left shutter can be closed when the direction of the left vertical louver opens the left side outlet, and the left shutter can be closed, and the direction of the right vertical louver is the right side. The right shutter can be closed when a problem occurs when the air outlet is opened, and the problem that occurs when the left shutter and the right shutter are opened can be reduced.

In the air conditioner according to the eighth aspect of the invention, the shutter can be closed when the rotational speed of the fan and the direction of the vertical louver are in trouble when the side air outlet is open. Can be more accurately reduced.

In the air conditioner according to the ninth aspect of the present invention, the shutter can be closed when the state of the horizontal flap and the direction of the vertical louver is open when the side air outlet is open. Can be more accurately reduced.

In the air conditioner according to the tenth aspect of the present invention, the shutter can be closed when a trouble occurs when the angle of the horizontal flap and the amount of projection and the direction of the vertical louver are open at the side outlet. It is possible to more accurately reduce problems that occur when the door is opened.

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 of one Embodiment. The side view of the indoor unit of one Embodiment. The perspective view 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 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) A partially broken enlarged perspective view around the left shutter. The block diagram which shows the structure of a control part. (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 figure for demonstrating the relationship between the angle of the left louver, and the operation | movement of each part. (B) The figure for demonstrating the relationship between the angle of the right louver, and the operation | movement of each part. The flowchart which shows the control procedure of a wind direction apparatus. The flowchart for demonstrating the other control procedure of a wind direction apparatus. The flowchart for demonstrating the other control procedure of a wind direction apparatus.

<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. Further, in order to control the air conditioner 1, an electrical component box is provided in the indoor unit 2 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. 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 component box of the outdoor unit 3 are connected by a transmission line passing through the collective connection 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. Note that 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 front view is the right direction and the left hand in front view is Turn left. 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, the circulation of the indoor air inside the indoor unit 2 is performed from the top surface 2d side of the indoor unit 2 toward the bottom surface 2e side 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 driving force is transmitted from the stepping motors 13c and 13d via the arms 13e and 13f and the connecting rods 13a and 13b are driven independently, the left louver 19a and the right louver 19b are connected to the casing body 6. It can swing left and right independently of each other about a plane perpendicular to the longitudinal direction. 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.

  In order to drive the vertical louver 12, the horizontal flap 11, the left shutter 20a, and the right shutter 20b as described above, the indoor unit 2 includes the above-described vertical louver driving mechanism 42, a horizontal flap driving mechanism and a shutter driving mechanism, which will be described later. ing. These drive mechanisms are controlled by a control unit described later.

<Horizontal flap>
FIG. 6 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. 7C). 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. 7 is a diagram schematically showing a cross section in the vicinity of the air outlet as viewed from the side in order to explain the operation of the horizontal flap. FIG. 7A 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 support arm 53b are stored so that the amount of protrusion is minimized within a range in which the horizontal flap 11 can move smoothly. 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. 7B 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. 7B, 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. 7A is tightened to position the horizontal flap 11, and in the case of FIG. 7B, the rotation angle of the horizontal flap 11 is determined. Criteria can be given.

  FIG. 7C shows a state where 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 the reference of the rotation angle of the horizontal flap 11 can be given in the same manner as in FIG. 7B. Accordingly, the control unit can accurately control the rotational angle of the horizontal flap 11 by using either or both of FIG. 7B and FIG. 7C.

  FIG. 7D shows the state of the horizontal flap during operation at the arm upper position. When operating in the roll-up state of FIG. 7 (b) or the roll-down state of FIG. 7 (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. 7E 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. 7 (e), the left support arm 53 a and the right support arm 53 b are pushed out until the horizontal flap 11 does not hit the casing body 6. 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. 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. 7F shows the state of the horizontal flap during operation at the arm lower position. When operating in the roll-down state of FIG. 7 (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.

<Shutter>
FIG. 8 is an enlarged view of a portion of the periphery of the left shutter in order to explain the configuration near the left shutter. FIG. 8A shows a state in which a part of the periphery of the left shutter is broken and enlarged when the left shutter 20a is closed and the horizontal flap 11 is opened. FIG. 8B 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 opened is broken and enlarged.

  The left shutter 20a shown in FIGS. 8 (a) and 8 (b) is driven while being supported by the support member 23, and rotates counterclockwise to open the left outlet 7b, thereby accommodating the storage portion 25a. It is stored in. 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. The storage portion 25a is deformed into a substantially U shape with the opening facing downward, and a cavity 26c into which the left shutter 20a enters is formed at 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 blower outlet 7b vicinity. 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.

  8 (a) and 8 (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. FIG. 8A shows a state where the left shutter 20a is closed and the left side outlet 7b is closed, and a state where such an air flow shown by a solid line is generated, that is, the vertical louver 12 is shown. Shows a state perpendicular to the longitudinal direction. FIG. 8B shows a state in which the left shutter 20a is opened and the left side outlet 7b is opened, and a state in which such an air flow indicated by a dotted line is generated, that is, a vertical louver. 12 shows a state in which the surface of the 12 blades is tilted to the left from the direction perpendicular to the longitudinal direction. In the state of FIG. 8B, the conditioned air can be blown out in the direction in which the left side surface 2b of the casing body 6 faces using the horizontal flap 11 and the left side outlet 7b.

  As shown in FIG. 8, when the horizontal flap 11 is closed, the horizontal flap 11 exists on the flow line of the left shutter 20a. Therefore, when the left shutter 20a and the right shutter 20b are opened, the horizontal flap 11 is firstly opened. Opening operation is performed.

<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 indoor conditions. 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. 9 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 intermediate support arm 53c, the left support arm 53a and the right support arm 53b and the specific posture control of the horizontal flap 11 will be described later.

  The shutter drive mechanism 49 is a mechanism for driving the left shutter 20a and the right shutter 20b, and includes a shutter drive mechanism drive motor and a 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.

<Vertical louver tilt and shutter opening / closing>
The left shutter 20a and the right shutter 20b are selectively opened and closed according to the inclination of the vertical louver 12. FIG. 10 is a schematic diagram showing the relationship between the inclination of the vertical louver 12 and the opening and closing of the left shutter 20a and the right shutter 20b when the indoor unit 2 is viewed from the top surface 2d side. The vertical louver 12 is divided into a left louver 19a and a right louver 19b, connected to the connecting rods 13a and 13b, and driven separately.

  FIG. 10A 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 of FIG. 10A, the conditioned air is blown out forward, and the conditioned air is not blown out in the left-right direction.

  FIG. 10B shows a state in which the blade surface of the vertical louver 12 is tilted 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. 10B, the left shutter 20a is closed in order to blow out conditioned air to the right.

  FIG. 10C shows a state in which the blade surface of the vertical louver 12 is inclined to the left with respect to the longitudinal direction, the left shutter 20a is opened, and the right shutter 20b is closed. In the state of FIG. 10B, the right shutter 20b is closed in order to blow out conditioned air to the left.

In FIG. 10D, the blade surface of the left louver 19a of the vertical louver 12 is inclined to the left with respect to the longitudinal direction, and the blade surface of the right louver 19b is inclined to the right with respect to the longitudinal direction. The left shutter 20a and the right shutter 20b are shown open. In the state of FIG. 10 (d), both the left shutter 20a and the right shutter 20b are opened in order to blow out conditioned air in both the left and right directions.

  FIG. 10E 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, and both the left shutter 20a and the right shutter 20b are closed. In the state of FIG. 10 (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, which makes the user uncomfortable. Because it gives, it is fixed in the closed state.

  10A to 10E, all the horizontal flaps 11 are open. In order to realize the states of FIGS. 10B to 10D, the horizontal flap 11 is opened as described above, and then the left shutter 20a and the right shutter 20b are opened.

  The relationship between the inclination of the vertical louver and the opening / closing of the shutter will be described with reference to FIG. 11A describes the relationship between the angle of the left louver 19a of the vertical louver 12 and the left shutter 20a, and FIG. 11B illustrates the angle of the right louver 19b of the vertical louver 12 and the right shutter. The relationship with 20b is described.

  As shown in FIG. 11 (a), there are angles 12p to 12u, 12x, and 12y as boundaries that the left louver 19a of the vertical louver 12 can take. The angle 12x is a left-side fully open angle. When the left louver 19a is at this angle, the structure hits and is an angle for determining the origin. The angle 12y is a right-side fully open angle. When the left louver 19a is at this angle, the structure hits and is an angle for determining the origin. The angle 12p is the left swing angle when the installation setting is in the center, the angle 12q is the right swing angle when the installation setting is in the center, and the angle 12p when the installation setting is in the center. And the left louver 19a swings in the range An1 between the angle 12q. The angle 12r is an angle at which the blade surface of the vertical louver 12 is perpendicular to the center, that is, the longitudinal direction of the indoor unit.

  The angle 12s is a left-side swing angle when the installation setting is left, and when the installation setting is left, the left louver 19a swings in a range An2 between the angle 12s and the angle 12q. The angle 12t is the right swing angle when the installation setting is right. When the installation setting is right, the left louver 19a swings in a range An3 between the angle 12p and the angle 12t. .

  The angle 12u is a boundary angle for determining whether the left shutter 20a is opened or closed. When the left louver 19a is in the range An4 between the angle 12u and the angle 12p, the left shutter 20a is opened, and the angle 12u is between the angle 12u and the angle 12q. When the left louver 19a is in the range An5, the left shutter 20a is closed.

  As shown in FIG. 11 (b), there are angles 12p to 12t, 12v, 12x, and 12y as boundaries that the vertical louver 12 can take. What is different from FIG. 11A is an angle 12v, which is a boundary angle for determining whether the right shutter 20b is opened or closed. When the right louver 19b is in the range An6 between the angle 12v and the angle 12p, the right shutter 20b is opened, and when the right louver 19b is in the range An7 between the angle 12u and the angle 12q, the right shutter 20b is closed.

<Control of shutter opening / closing>
Control of opening and closing of the shutter will be described with reference to FIG.

  First, the CPU 31a acquires swing setting data from the storage unit 31b (step S1).

  Next, the CPU 31a acquires installation position setting data from the storage unit 31b (step S2).

  Then, the CPU 31a determines whether or not the installation position setting is “center” (step S3). If the installation position setting is “center”, the process directly proceeds to step S5. If the installation position setting is not “center” but “left” or “right”, the process proceeds to step S4. In step S4, if the installation position setting is “left”, the left shutter 20a is set not to be forced open regardless of the angle of the left louver 19a, and the process proceeds to step S5. If the installation position setting is “right”, the right shutter 20b is set not to be forced to open regardless of the angle of the right louver 19b, and the process proceeds to step S5.

  Next, in step S5, it is determined whether or not the swing setting is on. If it is determined that the swing setting is not turned on, that is, the swing setting is turned off, the vertical louver 12 is stopped at any angle, so that the process proceeds to step S9 and the position of the vertical louver 12 ( Angle). The fact that the vertical louver 12 is stopped at any angle means that there is an instruction for the wind direction in the left-right direction. Therefore, in this case, since the driving history of the vertical louver 12 is stored in the storage unit 31b, the position of the vertical louver 12 is detected based on the information. After detecting the position of the vertical louver 12, the process proceeds to step S10.

  On the other hand, if it is determined in step S5 that the swing setting is on, the process proceeds to step S6, and the shutter that is not forcibly fixed is closed. When the swing setting is on, as described with reference to FIG. 10E, in order to prevent the shutter from being opened and closed every time the swing is repeated, is the shutter kept closed? Then, keep the shutter open. In this embodiment, an example in which the shutter is kept closed is described.

  In step S5, it is determined that the swing setting is turned on. Thereafter, the user may instruct the wind direction from the remote controller 5 or the like. Therefore, in step S7, it is determined whether or not there is a wind direction instruction. If there is no wind direction instruction, the shutter state is not changed and the process proceeds to step S15. However, if there is a wind direction instruction, the shutter state needs to be changed, and the process proceeds to step S8.

  In step S8, the swing operation is stopped to adjust the wind direction according to the wind direction instruction, and the vertical louver 12 is moved to the command position. In step S9, the position of the vertical louver 12 is detected. At this time, the position of the vertical louver 12 is detected from the instruction of the CPU 31a to the stepping motor that has driven the vertical louver 12. Then, it progresses to step S10.

  In step S10, it is determined whether or not the swing setting has been changed to ON. If the swing setting is changed from off to on, the swing operation is started (step S12), so the process returns to step S5 again to change the judgment and proceed to step S6. If the swing setting remains off, the process proceeds to step S11.

  In step S11, it is determined whether or not the wind speed of the conditioned air blown out from the side outlet is 0.5 m / s or more. Here, the determination is made simply by determining whether the vertical louver 12 exceeds a predetermined angle. That is, in the case of the left louver 19a, as shown in FIG. 11A, if the angle 12u is exceeded (if it falls within the range An4 between the angle 12u and the angle 12p), the wind speed is 0. When it is determined that the speed is 5 m / s or more, the process proceeds to step S14, and the left shutter 20a is opened. If the angle does not exceed 12u, the process proceeds to step S15, and the left shutter 20a is not opened. At that time, if there is forced fixing by setting the installation position, that is given priority.

In the case of the right louver 19b, as shown in FIG. 11B, if the angle 12v is exceeded (if it is in the range An6 between the angle 12v and the angle 12p), the wind speed is 0.5 m / If it is determined that it is greater than or equal to s, the process proceeds to step S14 to open the right shutter 20b . If the angle does not exceed 12 v , the process proceeds to step S15, and the right shutter 20b is not opened. At that time, if there is forced fixing by setting the installation position, that is given priority.

  In this manner, the left louver 19a and the right louver 19b are separately determined, and it is determined whether or not the left shutter 20a and the right shutter 20b are to be opened. Accordingly, there are cases where the steps to proceed for the left shutter 20a and the right shutter 20b may differ, but after the processing of steps S13 and S14 is completed, the processing proceeds to step S15.

  In step S15, it is determined whether or not there has been an operation stop command from the CPU 31a. If there is no operation stop command, the process returns to step S1 and the above-described processing is repeated. If there is an operation stop command, information on the swing setting and the stop position of the vertical louver 12 is stored in the storage unit 31b (step S16), and the left shutter 20a and the right shutter 20b are opened. The shutter is closed and the operation is stopped (step S17).

<Modification>
(1) Although the case of the wall-mounted indoor unit 2 has been described in the above embodiment, 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 case where the vertical louver 12 is divided into the left louver 19a and the right louver 19b and is driven separately has been described. However, the vertical louver 12 is not driven separately and is integrated. The present invention can also be applied to the case of being driven by one stepping motor. The present invention can also be applied to a case where the number of the shutters is divided into three or more. In this case, the opening / closing of the left shutter 20a is determined by the leftmost louver, and the opening / closing of the right shutter 20b is determined by the rightmost louver. Is preferred.

  (3) In the above embodiment, the determination based on the wind speed is shown in step S11. However, the relationship between the air volume and the angle of the vertical louver 12 may be measured in advance, and the determination may be made based on the air volume. Further, both can be used, for example, when the wind speed and the air volume exceed a predetermined value.

  (4) In the above embodiment, the opening / closing of the left shutter 20a and the right shutter 20b is determined based on the angle of the vertical louver 12. However, in addition to the angle of the vertical louver 12, the rotational speed of the crossflow fan 9 is taken into consideration. The opening / closing of the shutter 20a and the right shutter 20b may be determined.

  As shown in FIG. 13, the processing procedure is changed to add step S9A-2 for detecting the fan rotation speed after step S9 for detecting the position of the vertical louver 12.

  The determination in step S11A is based on the rotational speed of the cross flow fan 9. Therefore, when the rotational speed of the cross flow fan 9 exceeds a predetermined value and the angle of the vertical louver 12 also exceeds a predetermined value, the left shutter 20a and the right shutter 20b are controlled to be opened and closed. it can. Alternatively, a function or a table using the rotational speed and the angle of the vertical louver 12 as parameters can be used for the cross flow fan 9.

  (5) In the above embodiment, the opening / closing of the left shutter 20a and the right shutter 20b is determined based on the angle of the vertical louver 12, but in addition to the angle of the vertical louver 12, the state of the horizontal flap 11 is taken into consideration. Alternatively, the opening / closing of the right shutter 20b may be determined. In this case, the determination can also be made in consideration of the rotational speed of the cross flow fan 9.

  FIG. 14 shows the processing procedure changed in this way. Following step S9 for detecting the position of the vertical louver 12, step S9B-2 for detecting the number of fan rotations, step S9B-3 for detecting the angle of the horizontal flap 11, and a step for detecting the amount of projection of the horizontal flap 11. The processing procedure is changed to add S9B-4.

  The determination in step S11B is based on the rotational speed of the cross flow fan 9, the angle of the horizontal flap 11, and the amount of protrusion. Therefore, when the rotational speed of the cross flow fan 9 exceeds a predetermined value, the angle of the horizontal flap 11 and the amount of protrusion exceed the predetermined value, and the angle of the vertical louver 12 also exceeds the predetermined value. The left shutter 20a and the right shutter 20b can be controlled to open and close. Alternatively, a function or a table using the rotational speed and the angle of the vertical louver 12 as parameters can be used for the cross flow fan 9.

<Features>
(A) The casing body 6 is formed with a central air outlet 7a, a left side air outlet 7b, and a right side air outlet 7c. The central outlet 7a is for blowing conditioned air forward, and the left side outlet 7b and the right side outlet 7c are for blowing conditioned air in either the left or right direction. The left side outlet 7b and the right side outlet 7c communicate with the central outlet 7a, and are provided at at least one of the longitudinal ends of the central outlet 7a. The vertical louver 12 is provided in the blowing passage 10 connected to the central outlet 7a, and adjusts the angle in the left-right direction of the conditioned air flow blown out from the central outlet 7a.

  The left shutter 20a and the right shutter 20b are driven so as to open and close the left side outlet 7b and the right side outlet 7c, respectively. The control unit 30 can control the driving of the left shutter 20a and the right shutter 20b independently of each other according to the direction of the vertical louver 12. The control unit 30 opens the left shutter 20a and closes the right shutter 20b when the vertical louver 12 faces the left direction, and opens the right shutter 20b and closes the left shutter 20a when the vertical louver 12 faces the right direction. Take control.

  As described above, when the vertical louver 12 faces in the direction in which the left shutter 20a and the right shutter 20b that are open are in trouble, the control unit 30 drives the left shutter 20a and / or the right shutter 20b in which the trouble occurs. The left side outlet 7b and / or the right side outlet 7c can be closed.

  (B) The control unit 30 has detection means for detecting the stop position of the vertical louver 12 and controls the driving of the shutter based on the detected angle of the vertical louver 12. In the above embodiment, the detection means is the CPU 31a, and detects the angle of the vertical louver 12 by counting the number of pulses for the stepping motors 13c and 13d. Since the drive of the left shutter 20a and the right shutter 20b is controlled based on the boundary angles 12u and 12v of the vertical louver 12, when the left shutter 20a and the right shutter 20b do not need to be opened, the left shutter 20a and the right shutter 20b are accurately obtained. Can be closed.

  The boundary angles 12u and 12v of the vertical louver 12 serving as threshold values for the determination of opening and closing of the left shutter 20a and the right shutter 20b are vertical in which the amount or speed of conditioned air blown from the left shutter 20a and the right shutter 20b exceeds a predetermined value. The louver boundary angle is set. This is performed, for example, by determining beforehand that the boundary angle of the vertical louver is at the boundary of whether or not the air volume or the wind speed exceeds a predetermined value by an experiment or the like. Thereby, the left shutter 20a and the right shutter 20b can be closed when the conditioned air having a predetermined air volume or speed is not blown from the left shutter 20a and the right shutter 20b. Further, in addition to the air volume and the wind speed, an index having a high correlation with a problem that occurs because the left shutter 20a and the right shutter 20b are open can be used as a determination criterion.

  Further, the number of rotations of the cross flow fan 9 can be added to a criterion for determining whether the left shutter 20a and the right shutter 20b are opened or closed (steps S9A-2 and S9B-2). it can. By considering the rotational speed of the cross flow fan 9 in the shutter drive control, the side air outlet can be closed according to the detailed classification of the conditions causing the malfunction.

  Further, the state of the horizontal flap 11 such as the angle of the horizontal flap 11 and the amount of protrusion is also taken into account in the drive control of the left shutter 20a and the right shutter 20b, so that the side air outlets are arranged according to the detailed classification of the conditions causing the malfunction. Can be closed.

DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 2 Indoor unit 6 Casing main body 7 Outlet 7a Central outlet 7b Left side outlet 7c Right side outlet 11 Horizontal flap 12 Vertical louver 20a Left shutter 20b Right shutter 30 Control part

JP-A-8-178407

Claims (10)

A central air outlet (7a) for blowing the conditioned air forward and the central air outlet communicated with the central air outlet, provided at at least one of the longitudinal ends of the central air outlet and conditioned air in either the left or right direction A casing body (6) in which side outlets (7b, 7c) for blowing
A vertical louver (12) for adjusting the angle in the left-right direction of the air flow of conditioned air blown out from the central outlet, provided in the outlet passage connected to the central outlet;
Shutters (20a, 20b) that are driven to open and close the side air outlets;
A control unit (30) for controlling the driving of the shutter according to the direction of the vertical louver ,
Side air outlets of the casing body include left side air outlets (7b) and right side air outlets (7c) formed on the left and right of the central air outlet,
The shutter includes a left shutter (20a) that opens and closes the left side outlet and a right shutter (20b) that opens and closes the right side outlet.
The control unit opens the left shutter and closes the right shutter when the vertical louver faces the left direction, and opens the right shutter and closes the left shutter when the vertical louver faces the right direction. Control
When the vertical louver swings, air conditioning is performed to control the driving of the left shutter and the right shutter in preference to the control of the left shutter and the right shutter according to the direction of the vertical louver. apparatus. The right shutter is driven independently of the left shutter;
The air conditioning apparatus according to claim 1, wherein the control unit controls the driving of the left shutter and the right shutter independently of each other. When the control unit stops driving the left shutter and the right shutter in preference to the control of the left shutter and the right shutter according to the direction of the vertical louver when the vertical louver swings, The air conditioner according to claim 1 or 2, wherein the left shutter and the right shutter are kept open.   When the control unit stops driving the left shutter and the right shutter in preference to the control of the left shutter and the right shutter according to the direction of the vertical louver when the vertical louver swings, The air conditioner according to claim 1 or 2, wherein the left shutter and the right shutter are kept closed. A central air outlet (7a) for blowing the conditioned air forward and the central air outlet communicated with the central air outlet, provided at at least one of the longitudinal ends of the central air outlet and conditioned air in either the left or right direction A casing body (6) in which side outlets (7b, 7c) for blowing
A vertical louver (12) for adjusting the angle in the left-right direction of the air flow of conditioned air blown out from the central outlet, provided in the outlet passage connected to the central outlet;
Shutters (20a, 20b) that are driven to open and close the side air outlets;
A control unit (30) for controlling the driving of the shutter according to the direction of the vertical louver,
Side air outlets of the casing body include left side air outlets (7b) and right side air outlets (7c) formed on the left and right of the central air outlet,
The shutter includes a left shutter (20a) that opens and closes the left side outlet and a right shutter (20b) that opens and closes the right side outlet.
The control unit includes a detecting unit that detects a stop position of the vertical louver, and controls driving of the shutter based on the detected angle of the vertical louver.
When the vertical louver is facing left, the left shutter is opened and the right shutter is closed; when the vertical louver is facing right, the right shutter is opened and the left shutter is closed; and
Based on whether the angle of the vertical louver exceeds the boundary angle, with the angle of the vertical louver exceeding the predetermined value, the amount or speed of the conditioned air blown from the shutter exceeds a predetermined value. control for air conditioner. A stepping motor for driving the vertical louver;
The air conditioner according to claim 5, wherein the control unit controls the stepping motor with a pulse signal, and the detection unit detects an angle of the vertical louver from the number of pulses of the pulse signal. The right shutter is driven independently of the left shutter;
The vertical louvers include a left vertical louver (19a) and a right vertical louver (19b) that are driven independently of each other,
Wherein the control unit is configured to control the driving of the left shutter according to the direction of the left vertical louvers, said controlling the driving of the right shutter according to the direction of the right vertical louvers, any of claims 1 6 one The air conditioning apparatus according to item. A fan for generating an air current of conditioned air blown from the air outlet;
The air conditioner according to any one of claims 1 to 7 , wherein the control unit controls driving of the shutter based on a direction of the vertical louver and a rotation speed of the fan. A horizontal flap for adjusting the vertical air direction of the conditioned air blown out from the central outlet,
The air conditioner according to any one of claims 1 to 8 , wherein the control unit controls driving of the shutter based on a direction of a vertical louver and a state of the horizontal flap. The air conditioner according to claim 9 , wherein the control unit uses at least one of an angle of the horizontal flap and a protruding amount of the horizontal flap as the state of the horizontal flap.

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