JP5015322B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an improvement in a wind direction guide device that is provided at an outlet and guides heat exchange air to the room.

  In an air conditioner composed of an indoor unit and an outdoor unit, the indoor unit is provided with a wind direction guide device that blows out and guides heat exchange air such as cold air obtained to the room. This type of wind direction guide device includes a left and right wind direction louver provided at the outlet of the indoor unit main body, a vertical wind direction louver, and a drive source and a drive mechanism for driving the left, right, and top and bottom wind direction louvers.

  Generally, as disclosed in JP-A-5-52386, left and right wind direction louvers are installed in a blowout ventilation path formed on the downstream side of a blower, and a blowout opening that is a tip of the blowout ventilation path is provided. Up and down wind direction louvers are installed. In addition, a feature of the present invention is that the up / down wind direction louver is divided into a main wind direction plate and a sub wind direction plate to function during heating operation.

  In the above-described technique, by providing the vertical airflow direction louver at the outlet at the tip of the airflow path, the vertical airflow direction control width of the heat exchange air blown from the outlet is relatively wide. On the other hand, since the left and right wind direction louvers are provided in the middle of the blowout ventilation path inside the indoor unit main body, the width of the wind direction control in the left and right direction of the heat exchange air is extremely narrow.

  In recent years, living rooms, dining rooms, kitchens, etc. have become larger, and it is necessary to improve the wind direction characteristics not only in the vertical direction but also in the horizontal direction. Narrow and wide-angle wind direction guidance is not possible. Moreover, since the wind direction in the up-down direction is changed after changing the wind direction in the left-right direction, the loss at the time of the wind direction change occurs twice and the air volume loss cannot be ignored.

  In JP 2006-300460 A, an up-and-down wind direction louver (up-and-down wind direction plate) is rotatably provided at the outlet, and a left-and-right wind direction louver (left-and-right wind direction plate) is rotatably provided at the up-and-down direction louver. An air conditioner is disclosed in which a driving device for driving a plate is composed of a driving motor provided on one side of a blowout port, and linking means for linking the driving motor and left and right wind direction louvers.

  According to the technique disclosed in Japanese Patent Application Laid-Open No. 2006-300460, a wide wind direction adjustment width can be obtained not only in the vertical direction but also in the horizontal direction, and wide angle wind direction guidance can be performed. Since the wind direction guidance in the left-right direction and the wind direction guidance in the up-down direction are performed at the same time, the loss at the time of changing the wind direction is only 1 degree, thereby preventing the decrease in the air volume loss.

  Here, however, there is no explanation about the guide for blowing out cool air during the cooling operation and the guide for blowing out warm air during the heating operation. In FIG. 1 of the same document, it can be inferred that the up and down wind direction louver is drawn obliquely forward, so that it explains the blowing out guidance of the cold air during the cooling operation.

  In the figure, the vertical wind direction louver is on the upper surface of the horizontal wind direction louver, in other words, the horizontal wind direction louver is located on the lower side of the vertical wind direction louver. In addition, in this state, the vertical wind direction louver is concave on the lower side and is convex on the upper side. Therefore, most of the cool air guided to the up / down wind direction louver does not go in the horizontal direction but goes to the floor surface below.

  Since this type of indoor unit is wall-mounted and is mounted at a high place in the room, it is desirable to guide the cool air in the horizontal direction as much as possible during cooling operation and not send cool air to the feet of the occupants. In this regard, with the technology disclosed in Japanese Patent Application Laid-Open No. 2006-300460, cold air is easily sent to the feet of the occupants and lacks comfort.

  Further, it is specified that a plurality of right and left wind direction louvers are connected to a connecting rod through a connecting pin, and the connecting rod is provided at a front end portion of the left and right wind direction louvers in front of the outlet. That is, since the position where the connecting rod is provided is also the front end portion of the vertical wind direction louver, it becomes a resistance when the heat exchange air passes, causing a turbulent flow and preventing a smooth flow.

  The present invention has been made based on the above circumstances, and the object of the present invention is to reliably and efficiently switch between the horizontal blowing guide during the cooling operation and the lower blowing guide during the heating operation. It is an object of the present invention to provide an indoor unit of an air conditioner equipped with a wind direction guiding device that can improve guidance characteristics and can smoothly flow.

  In order to satisfy the above object, the indoor unit for an air conditioner of the present invention has a suction port and a blow-off port, and has a ventilation path that communicates the suction port and the blow-out port. A heat exchanger is provided in the ventilation path. And a wind direction guide device is installed at the outlet, and the wind direction guide device is a horizontally long flat plate having a long left and right width direction with respect to the depth direction. One up-and-down air direction louver for controlling the upward and downward blowing direction of the heat exchange air to be blown out, and the right and left blowing direction of the heat exchange air blown from the outlet by being attached to the up-and-down air direction louver and being driven to rotate A plurality of left and right wind direction louvers to be controlled, and the left and right wind direction louvers are formed so that the length in the depth direction is longer than the length in the vertical direction perpendicular to the depth direction, and the vertical wind direction louvers It is formed to be equal to or longer than the length in the depth direction, and the vertical wind direction louver is in a substantially horizontal posture, and the horizontal wind direction louver is positioned on the upper surface side of this vertical wind direction louver to provide horizontal blowing guidance, and the vertical wind direction louver is abbreviated. In addition to the vertical posture, the left and right wind direction louvers are positioned on the back side of the up and down wind direction louvers to provide downward blowing guidance.

It is a schematic longitudinal cross-sectional view of the indoor unit of the air conditioner which concerns on one embodiment in this invention. It is an external appearance perspective view of the indoor unit concerning the embodiment. It is an external appearance perspective view at the time of the refrigerating cycle operation | movement of the indoor unit which concerns on the same embodiment. It is the top view which abbreviate | omitted a part of wind direction guide apparatus which concerns on the embodiment. It is the perspective view which expanded a part of wind direction guide device concerning the embodiment. It is a figure which expands further the wind direction guidance apparatus which concerns on the embodiment, and demonstrates an effect | action. It is the disassembled perspective view of a part of wind direction guide device concerning the embodiment. It is a figure explaining the drive part of the wind direction guide apparatus which concerns on the same embodiment. It is a perspective view explaining the slip prevention structure of the wind direction guide apparatus which concerns on the same embodiment. It is sectional drawing explaining the slip prevention structure of the wind direction guide apparatus which concerns on the same embodiment. It is sectional drawing which shows a part of indoor unit at the time of the air_conditionaing | cooling operation which concerns on the same embodiment. It is a figure explaining the attitude | position of the wind direction guide apparatus at the time of the air_conditionaing | cooling operation which concerns on the embodiment. It is sectional drawing which shows a part of indoor unit at the time of the heating operation which concerns on the embodiment. It is a figure explaining the attitude | position of the wind direction guidance apparatus at the time of the heating operation which concerns on the embodiment. It is a figure explaining the effect | action of the wind direction guide apparatus which concerns on other embodiment in this invention. It is a figure explaining the effect | action of the wind direction guide apparatus which concerns on other embodiment in this invention. It is a figure explaining the effect | action of the wind direction guide apparatus which concerns on other embodiment in this invention. It is a figure explaining the structure of the up-and-down wind direction louver of the wind direction guidance apparatus which concerns on other embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view schematically showing an indoor unit of an air conditioner when the refrigeration cycle operation is stopped, FIG. 2 is a perspective view showing an appearance of the indoor unit when the operation is stopped, and FIG. It is a perspective view which shows the external appearance of an indoor unit. (Note that parts not marked in the description are not shown. Some parts are not marked even if they are shown. The same applies hereinafter.)
The indoor unit main body 1 includes a front panel 2 constituting a front case and a rear main body 3 constituting a rear case, and is formed in a horizontally long shape in the left-right width direction with respect to the vertical direction. A front suction port 4 is opened at a part of the front side of the indoor unit body 1, and a movable panel 2 </ b> A supported by an opening / closing drive mechanism is fitted into the front panel 2 facing the front suction port 4.

  FIG. 1 shows when the refrigeration cycle operation is stopped. The movable panel 2A is flush with the front panel 2 and closes the front suction port 4 to constitute a part of the appearance of the indoor unit body 1. When the refrigeration cycle operation is started, the panel opening / closing mechanism is activated, and the movable panel 2A is moved away from the front suction port 4 to project toward the front side.

  Therefore, a gap communicating with the room is formed around the movable panel 2A, and the front suction port 4 can be opened to the room. An upper surface suction port 5 is opened at the upper part of the indoor unit main body 1, and a frame-like bar partitioning into a plurality of spaces is fitted into the upper surface suction port 5.

  A blow-out opening 6 is opened in the lower part of the front surface of the indoor unit body 1, and a wind direction guide device F described later is provided in the blow-out opening 6. The wind direction guide device F is configured to open and close the outlet 6 according to the rotation posture and to set the direction in which the heat exchange air is blown according to the refrigeration cycle operating conditions.

  In the indoor unit main body 1, a heat exchanger 8 formed in a substantially inverted V shape by the front heat exchanger portion 8A and the rear heat exchanger portion 8B is disposed. The front heat exchanger portion 8A is formed in a curved shape so as to face the entire front suction port 4 and a part of the upper surface suction port 5, and the rear heat exchanger portion 8B is straight and obliquely inclined so as to face the upper surface suction port 5. Opposite part.

  An indoor fan 10 is disposed between the front and rear heat exchanger portions 8A and 8B of the heat exchanger 8. The indoor blower 10 includes a fan motor disposed in a space on one side end of the indoor unit main body 1 and a cross-flow fan connected to a rotation shaft of the fan motor. The axial direction length of the cross flow fan is set to be the same as the width direction length of the heat exchanger 8 and is arranged so as to face each other correctly.

  The lower end portion of the front side heat exchanger portion 8A is placed on the front drain pan 12a, and the lower end portion of the rear side heat exchanger portion 8B is placed on the rear drain pan 12b. The front and rear drain pans 12a and 12b are formed integrally with the rear main body 3 constituting the indoor unit main body 1, respectively, drained from the heat exchanger portions 8A and 8B, and drained outdoors via a drain hose (not shown). It can be done.

  The outer surfaces of the side walls of the front and rear drain pans 12a and 12b are provided close to the indoor blower 10 and constitute a nose for the crossflow fan of the indoor blower 10. A partition wall member 14 connects the side wall portions of the front and rear drain pans 12a and 12b, which are noses, and the side portions of the outlet port 6.

  By driving the indoor blower 10, the space surrounded by the partition wall member 14 becomes a blowout ventilation path 15 </ b> A that communicates the nose and the blowout opening 6. On the other hand, a suction ventilation path 15B is formed between the front suction port 4 and the upper suction port 5 and the heat exchanger 8.

  On the other hand, an upper frame assembly 16 is interposed between the upper surface inlet 5 provided on the upper surface of the front panel 2 and the upper end portion of the heat exchanger 8. An air filter cleaning unit S is attached along the front end portion of the upper frame assembly 16, and the upper air filter 17 is movably supported over the entire portion excluding the front end portion.

  The air filter cleaning unit S is for passing through the upper air filter 17 and the front air filter 18 alternately, and removing dust adhering to and contacting the upper air filter 17 and cleaning. The removed dust is once led to an exhaust unit provided on the side of the indoor unit body 1 and is discharged from here to the outdoors.

  An ion generator M is provided in the suction ventilation path 15B between the front air filter 18 and the front heat exchanger section 8A. The ion generator M includes an ion generation electrode 20 and a counter electrode 21 that is a ground electrode, and the ion generation electrode 20 and the counter electrode 21 are configured to be attached to a case body 22.

  The ion generator M generates negative ions with respect to the components constituting the indoor unit, the indoor air guided to the suction ventilation path 15B, and the germs adhering to the indoor unit components and the germs contained in the indoor air. Sterilize and clean. And the deodorizing effect | action will be acquired with purification.

  Next, the wind direction guide device F will be described in detail. 4 is a plan view showing only the configuration of both sides of the wind direction guiding device F with a part (center portion) omitted, FIG. 5 is an enlarged perspective view showing one side portion of the wind direction guiding device F, and FIG. FIG. 7 is an exploded perspective view illustrating one side part of the wind direction guiding device F, and FIG. 8 is a diagram illustrating a driving structure of the wind direction guiding device F. FIG. is there.

  The wind direction guiding device F includes a single vertical wind direction louver 7A, a plurality of horizontal wind direction louvers 7B, a drive source 30A and a drive mechanism 31A for driving the vertical wind direction louver 7A, and a drive source for driving the left and right wind direction louvers 7B. 30B and drive mechanism 31B.

  Although not particularly illustrated, a plurality of right and left wind direction louvers 7B are provided symmetrically with respect to the middle portion of the up and down wind direction louver 7A. That is, with respect to one vertical wind direction louver 7A, a set of plural sets and two sets of left and right wind direction louvers 7B are provided separately from the middle to the left and right.

  Note that this configuration is not necessarily limited, and a single set of left and right wind direction louvers 7B may be attached over the entire length of one vertical wind direction louver 7A. However, as the drive source 30B, one having a larger driving force must be used, and further, downsizing of the indoor unit body 1 is hindered in order to secure an installation space for the drive source.

  As shown in FIG. 4, a drive source (hereinafter referred to as “left / right wind direction louver drive motor”) 30B for driving each pair of left and right wind direction louvers 7B, and a drive mechanism (hereinafter referred to as “left / right wind direction louver drive mechanism”). 31B) are provided on the left and right sides of the up / down wind direction louver 7A.

  In addition, a drive source (hereinafter referred to as “vertical wind direction louver drive motor”) 30A for driving the vertical wind direction louver 7A and a drive mechanism (hereinafter referred to as “vertical wind direction louver drive mechanism”) 31A are It is provided only on the left side of the wind direction louver 7A.

  That is, on the left side of the vertical wind direction louver 7A, the vertical wind direction louver drive motor 30A and the vertical wind direction louver drive mechanism 31A, and the left and right wind direction louver drive motor 30B and the left and right wind direction louver drive mechanism 31B are close to each other. Can be installed at the same position. The part to which these louver drive motors 30 </ b> A and 30 </ b> B are attached is the left side of the outlet 6.

  Only the left / right wind direction louver drive motor 30B and the left / right wind direction louver drive mechanism 31B are attached to the right side of the up / down wind direction louver 7A. The part to which the louver drive motor 30 </ b> B is attached is the right side of the outlet 6.

  Any of the louver drive motors 30A and 30B is electrically connected to the control unit R, and receives a signal sent from the control unit R so as to be driven to rotate forward or reverse, or to receive a drive stop signal. Controlled.

  Further, the control unit R receives detection signals from a temperature sensor and a humidity sensor that are attached to the front suction port 4, the upper suction port 5, the heat exchanger 8, the suction ventilation path 15B, the blowout ventilation path 15A and the like, although not particularly illustrated. And a control signal is sent to the compressor, the outdoor fan, the indoor fan 10, the ion generator M, the air filter cleaning unit S, etc. arranged in the outdoor unit.

Next, the vertical wind direction louver drive mechanism 31A connected to the vertical wind direction louver drive motor 30A shown in the left part of FIG. 4 and the left and right wind direction louver drive mechanism 31B connected to the left and right wind direction louver drive motor 30B will be described in detail. Explained.
An up / down wind direction louver drive gear 32 is fitted on the rotation shaft of the up / down wind direction louver drive motor 30A. Further, a left / right wind direction louver drive gear 33 is fitted on the rotation shaft of the left / right wind direction louver drive motor 30B.

  As shown in enlarged views in FIGS. 5 and 8, the left and right wind direction louver drive gear 33 meshes with a rack portion 35 provided at one end of the drive rod 34. That is, the right and left wind direction louver drive gear 33 constitutes a pinion gear and meshes with the rack portion 35, so that the drive rod 34 can move forward and backward along the axial direction in accordance with the drive direction of the drive motor 30B.

  The drive rod 34 is provided with a flange portion 36 having a diameter larger than the diameter of the rack portion 35 adjacent to one end of the rack portion 35, and a slide shaft portion 37 is provided along this axial direction. It is done. A plurality of protrusions 38 are provided along the axial direction at a predetermined interval in the circumferential direction at a portion of the slide shaft portion 37 near the flange portion 36.

  Further, a square shaft portion 40 and a hook shaft portion 41 are integrally connected to the slide shaft portion 37. The angular shaft portion 40 has a non-circular cross section, for example, a hexagonal shape. The engaging shaft portion 41 is a shaft portion having a diameter smaller than that of the angular shaft portion 40 and a circular cross section. The engaging shaft portion 41 has a groove portion 42 along a part of the circumferential surface thereof, and has a tapered tip.

  A drive shaft 43 is fitted on the slide shaft portion 37 of the drive rod 34. The drive shaft 43 is provided with a hole having a hexagonal cross section that is fitted to the angular shaft portion 40 of the slide shaft portion 37 of the drive rod 34. Therefore, the drive shaft 43 and the drive rod 34 are slidable along the axial direction and can be rotated together with each other.

  A gear portion 44 is provided on a part of the outer peripheral surface of the drive shaft 43 to mesh with the up / down air direction louver drive gear 32. The vertical wind direction louver drive motor 30A is attached and fixed to the above-mentioned part, and the axial position of the vertical wind direction louver drive gear 32 fitted to the rotating shaft is also fixed. Therefore, the axial position of the drive shaft 43 including the gear portion 44 meshed with the up / down wind direction louver drive gear 32 is also fixed.

  When the vertical wind direction louver drive motor 30A is driven, the drive shaft 43 is rotationally driven via the vertical wind direction louver drive gear 32 and the gear portion 44, and the drive rod 34 fitted to the drive shaft 43 is also rotationally driven. The However, as long as the left / right wind direction louver drive motor 30B is not driven, the drive rod 34 only rotates while maintaining its position.

  The drive shaft 43 is provided with a shaft portion 45 whose outer cross section is a perfect circle and an outer angle shaft 46 whose outer cross section is a hexagonal shape along the axial direction of the gear portion 44. That is, a hole is provided along the inner diameter of the drive shaft 43, and the gear portion 44, the shaft portion 45, and the outer angle shaft 46 are continuously provided along the axial direction along the outer shape.

  As shown in FIG. 4 again, the left and right wind direction louver drive gear 33 is fitted to the rotation shaft of the left and right wind direction louver drive motor 30B disposed on the right side of the up and down wind direction louver 7A, and is the same as described above. The rack portion 35 of the drive rod 34 having the configuration is engaged.

  A rack portion 35 and a slide shaft portion 37 are connected to the drive rod 34. The slide shaft portion 37 may be a simple round rod-like shaft, but has a tapered tip and a groove portion similar to the groove portion 42. It is necessary to prepare.

  In particular, as shown in FIG. 7, the vertical wind direction louver 7A is a horizontally long flat plate that is long in the left-right width direction (hereinafter referred to as “X direction”) and short in the depth direction (hereinafter referred to as “Y direction”). Become. The length of the up / down wind direction louver 7A in the X direction matches the length of the outlet port 6 in the left-right width direction, and the length of the louver 7A in the Y direction matches the length of the outlet port 6 in the vertical direction. Therefore, the up-and-down wind direction louver 7A has a size and shape capable of opening and closing the outlet 6.

  The vertical wind direction louver 7A is curved along the Y direction so that the upper surface is concave and the lower surface is convex in the state when the refrigeration cycle operation is stopped as shown in FIG. On the upper surface of the up / down airflow direction louver 7A, substantially triangular supporting ribs 48 are erected integrally at both ends in the X direction and at an intermediate portion in the Y direction.

  A pivot hole 49 formed of a hexagonal hole is provided at the top of the support rib 48, and a hole is provided at the base end. The shape dimension of the pivot hole 49 substantially matches the shape dimension of the outer shape of the outer angle shaft 46 provided on the drive shaft 43. Therefore, the outer angle shaft 46 of the drive shaft 43 can be fitted into the pivot hole 49 of the support rib 48.

  Although only shown in FIG. 4, a support rib 48 is also provided on the upper surface of the right side portion of the vertical wind direction louver 7 </ b> A, which is slightly larger than the diameter dimension of the slide shaft portion 37 of the drive rod 34. A pivot hole having a hole diameter is provided. That is, the slide shaft portion 37 of the drive rod 34 is slidably inserted into the pivot hole of the support rib 48.

  A plurality of positioning projections 50 are integrally provided on the upper surface of the up / down wind direction louver 7A at a position distributed back and forth from an intermediate position in the Y direction and at a predetermined interval in the X direction. These positioning projections 50 are provided in the Y direction with the pivot hole 49 of the support rib 48 as the center.

  The left and right wind direction louvers 7B are formed such that the length in the Y direction is longer than the length in the vertical direction (hereinafter referred to as “Z direction”) perpendicular to the surface portion along the Y direction. The length in the Y direction of the left and right wind direction louvers 7B is formed to be equal to or longer than the length in the Y direction of the up and down wind direction louvers 7A.

  The left and right wind direction louvers 7B are formed at the upper end along the Y direction, and both sides are formed in an R shape. On one side of the R shape, a plurality (three in this case) of guide ridges 51 are provided at a predetermined interval in the Z direction, and are integrated from the edge in the Y direction to a substantially intermediate portion in the Y direction. Provided. Each guide protrusion 51 has a streamline shape.

  The lower end of the left / right wind direction louver 7B has a substantially middle portion formed in a concave shape, and a hooking projection 53 and an adjustment projection 54 are integrally provided at positions spaced apart from each other in the concave portion.

  The hooking projection 53 is hooked into a hole 56 provided at a predetermined interval on a connecting rod 55 described later. The connecting rod 55 is a rod-like body provided so as to face the plurality of right and left wind direction louvers 7B. The plurality of left and right wind direction louvers 7B and one connecting rod 55 are engaged with each other with a projection 53 and a hole 56. It is connected via a pivot.

  As described above, since two sets of left and right wind direction louvers 7B are provided on the left and right sides of the substantially middle portion in the X direction of the up and down wind direction louvers 7A, the connecting rod 55 is also left and right with respect to the up and down wind direction louvers 7A. Two are provided.

  The adjustment projection 54 in the left / right wind direction louver 7B is engaged with a hole 59 provided at a predetermined interval in a left / right wind direction louver adjuster 58 described later. Therefore, the left / right wind direction louver 7B and the left / right wind direction louver adjuster 58 are connected to each other via the adjustment protrusion 54 and the hole 59 so as to be rotatable.

  The left / right wind direction louver adjuster 58 is formed of a single plate, and the length in the X direction matches the dimension between the support ribs 48 provided at the left and right ends of the up / down wind direction louver 7A. Protrusions 60 are integrally provided on both side portions of the left / right airflow direction louver adjuster 58, and are freely detachable from the holes of the support ribs 48.

  A plurality of notches 61 are provided at a predetermined interval at a side end portion along the X direction of the left / right wind direction louver adjuster 58. The interval in the Y direction of the notches 61 substantially coincides with the interval in the Y direction of the positioning projections 50 in the up / down wind direction louver 7 </ b> A, and the position and length of the notches 61 are sized to fit the positioning projections 50.

  In actual assembly, the hooking projections 53 of each of the plurality of left and right wind direction louvers 7B are engaged with the holes 56 of the connecting rod 55, and the left and right wind direction louvers 7B and the connecting rod 55 are connected. Further, the adjustment projections 54 of the left and right wind direction louver 7B are engaged with the holes 59 of the left and right wind direction louver adjustment tool 58, so that the left and right wind direction louver adjustment tool 58, the plurality of right and left wind direction louvers 7B and the connecting rod 55 are integrated. To do.

  The left and right wind direction louver adjuster 58, the left and right wind direction louver 7B, and the connecting rod 55 are integrally opposed to each other between the support ribs 48 on both sides of the up and down wind direction louver 7A, and the protrusions on both ends of the left and right wind direction louver adjuster 58 are provided. 60 is engaged with the hole of the supporting rib 48.

  In this state, the notch 61 of the left / right wind direction louver adjuster 58 is engaged with the positioning protrusion 50 of the up / down wind direction louver 7A. Therefore, the up-and-down wind direction louver 7 </ b> A constitutes an integrated body in which the left-right wind direction louver 7 </ b> B, the left-right wind direction louver adjuster 58 and the connecting rod 55 are attached.

  On both sides in the X direction of the left / right wind direction louver adjuster 58, a connecting fixture 63 described later is fitted so as to be movable in the X direction. The connecting fixture 63 includes a flange portion a that extends in the X direction on the lower surface of the left / right airflow direction louver adjuster 58. That is, the flange portion a of the connecting fixture 63 is shielded by the left and right wind direction louver adjuster 58 and is not exposed in the assembled state of FIGS.

  A driving rod connecting portion 64 is provided at one side end of the flange portion a constituting the connecting fixture 63, and a connecting rod engaging portion 65 is provided at the other end, and the driving rod connecting portion 64 and the connecting rod engaging portion are connected. 65 is exposed on the upper surface of the left / right airflow direction louver adjuster 58.

  The drive rod connecting portion 64 includes a receiving portion 66 having a semicircular receiving hole b, and a pressing portion 67 that is rotatably attached to the receiving portion 66 via a hinge. The pressing portion 67 is provided with a hook portion that is detachable with respect to the receiving portion 66 and is provided with a semicircular pressing hole c having the same curvature radius as the receiving hole b.

In a state in which the presser portion 67 is hooked and fixed to the receiving portion 66 via the hook portion, the presser hole c and the receiving hole b have a perfect circle shape, and the diameter of the hook shaft portion 41 formed at the tip of the drive rod 34. The holes have the same diameter. Further, a lock claw d is projected from the presser hole c of the presser portion 67, and the lock claw d is formed in a protrusion amount and a protrusion width that can be freely engaged with and removed from the groove portion 42 of the engagement shaft portion 41.
A long hole e which is long in the Y direction is provided in the connecting hook engaging portion 65, and a connecting protrusion 68 provided on the lower surface of one side portion of the connecting hook 55 is engaged with the long hole e.

  Further, in actual assembly, the left and right airflow direction louver drive motor 30B is driven, and the drive rod 34 is moved backward via the left and right airflow direction louver drive gear 33 and the rack portion 35 of the drive rod 34. When the tip of the engaging shaft portion 41 of the drive rod 34 moves to a position substantially the same as the tip of the outer angle shaft 46 of the drive shaft 43, it stops.

  In the right and left wind direction louver drive motor 30B, the drive rod 34 is retracted to the extent that it does not come out of the support rib 48 and then stops. Next, there is a vertical wind direction louver 7A in which the left and right wind direction louvers 7B are integrated, and the support ribs 48 provided on the left side thereof are opposed to the drive rod 34 and the drive shaft 43, and the pivot support hole 49 is set to the drive shaft 43. The outer angle shaft 46 is fitted.

  Then, the intermediate portion of the up / down wind direction louver 7A is bent to some extent, and the pivot support hole of the support rib 48 provided on the right side is inserted into the tip of the slide shaft portion 37 of the drive rod 34. In any case, the presser portion 67 of the connecting fixture 63 on each of the left and right side portions of the left and right wind direction louver adjuster 58 is opened to the receiving portion 66.

  From this state, the left and right airflow direction louver driving motors 30B are driven in reverse rotation, and the engaging shaft portion 41 at the tip of the driving rod 34 is slidably biased in a direction protruding from the supporting rib 48. As shown in FIG. 6, when the distal end of the engagement shaft portion 41 is inserted into the receiving hole c provided in the receiving portion 66 of the connection fixture 63, the left / right airflow direction louver driving motor 30 </ b> B is stopped.

  After the hooking shaft portions 41 on both the left and right sides are inserted into the receiving portions 66 of the connecting fixtures 63, the holding portions 67 of the respective connecting fixtures 63 are rotated and aligned with the receiving portions 66, and fixed by the hook portions. The lock claw d provided on the presser portion 67 is inserted into the groove portion 42 of the engagement shaft portion 41 and is engaged. Therefore, the drive rod 34 and the connection fixture 63 are slidably connected in the X direction, which is the axial direction, and the drive rod 34 can be idled relative to the connection fixture 63.

  By connecting and fixing the drive rods 34 and the connection fixtures 63 on both sides as described above, an integrated unit of the vertical wind direction louver 7A and the left and right wind direction louvers 7B is provided on one side of the drive motor 30 for the vertical wind direction louver. It can be connected to the right and left wind direction louver drive motors 30B on both the left and right sides via respective drive mechanisms 31A and 31B.

In other words, the vertical wind direction louver drive mechanism 31 </ b> A includes the drive shaft 43 including the gear portion 44. The left / right wind direction louver drive mechanism 31B includes a drive rod 34, a connecting fixture 63, a connecting rod 55, and a left / right wind direction louver adjuster 58.
In particular, most of the components such as the connecting fixture 63, the connecting rod 55, and the left and right wind direction louver adjuster 58 that constitute the left and right wind direction louver drive mechanism 31B are attached to the middle portion in the Y direction of the up and down wind direction louver 7A. .

FIG. 9A is a perspective view showing an intermediate portion in the X direction when the left and right wind direction louvers 7B are attached to the vertical wind direction louver 7A, and FIG. 9B is a cross-sectional view of the same part.
An intermediate support rib 70 having a support shaft f is provided at an intermediate portion in the X direction of the vertical wind direction louver 7A, and a notch for projecting the intermediate support rib 70 is provided in the left and right wind direction louver adjuster 58. Provided. The support shaft f of the intermediate support rib 70 is inserted into the hole g of the support piece 71 projecting integrally with the upper surface of the partition wall member 14 of the indoor unit body 1.

  Further, a slippage-preventing claw portion 72 is integrally provided at an intermediate portion of the up / down airflow direction louver 7A, and a notch in which the slippage-preventing claw portion 72 protrudes is provided in the left / right wind direction louver adjuster 58. The slippage-preventing claw portion 72 elastically abuts against the lower end edge of the support piece portion 71, and no play occurs in the engagement between the support shaft portion f of the intermediate support rib 70 and the hole portion g of the support piece portion 71. Energize as follows.

  That is, the vertical wind direction louver 7A is supported by the indoor unit body 1 via the support piece 71 with the left and right wind direction louvers 7B and the like integrated therein. The vertical wind direction louver 7A is a flat plate formed in a horizontally long shape that is short in the Y direction and long in the X direction, and a left and right wind direction louver 7B to which the right and left wind direction louver adjuster 58 and the connecting rod 55 are connected is integrally attached. ing.

  The left and right sides of the up / down wind direction louver 7A are supported by the drive rod 34 via support ribs 48, and the drive rod 34 is attached to the indoor unit body 1 via the left / right wind direction louver drive gear 33 and the left / right wind direction louver drive motor 30B. Supported. Therefore, there is a possibility that the intermediate portion in the longitudinal direction (X direction) of the up / down wind direction louver 7A may be bent and deformed by being loaded.

  Therefore, by providing an intermediate support rib 70 in the middle part of the up / down wind direction louver 7A and supporting it on the support piece 71 of the indoor unit body 1, it is possible to prevent the middle part of the up / down wind direction louver 7A from bending. In addition, since the displacement-preventing claw portion 72 is provided on the up-and-down wind direction louver 7A and elastically abuts against the support piece portion 71, play between the intermediate support rib 70 and the support piece portion 71 can be prevented.

  Further, as will be described later, when the airflow direction guide device F guides the heat exchange air from the air outlet 6, the plurality of left and right airflow direction louvers 7B are rotationally driven all together on the upper and lower airflow direction louvers 7A. Accordingly, the positional deviation in the X direction of the vertical wind direction louver 7A is likely to occur, but the positional deviation of the vertical wind direction louver 7A can be regulated by adopting the above-described positional deviation regulating structure.

Next, the operation of the indoor unit of the air conditioner configured as described above will be described.
When the user presses the operation button on the remote control (remote control panel), the indoor blower 10 is driven and the ion generator M is energized. Further, the compressor is driven in the outdoor unit communicating with the indoor unit through the refrigerant pipe, and the refrigeration cycle operation is started.

  The room air is sucked into the indoor unit main body 1 from the front suction port 4 and the upper surface suction port 5, guided along the suction ventilation path 15 </ b> B, and passes through the front air filter 18 and the upper surface air filter 17. At this time, dust contained in the room air is captured by the front air filter 18 and the upper air filter 17.

  The room air from which dust has been removed by the front air filter 18 and the upper air filter 17 is sterilized and deodorized by the action of the ion generator M. At the same time, the ion generator M also sterilizes indoor unit components. The cleaned indoor air flows through the heat exchanger 8, and heat exchange action is performed with the refrigerant led to the heat exchange air.

  Thereafter, the heat exchange air is guided along the blowout air passage 15A and blown into the room from the blowout port 6. At this time, as will be described later, the air is guided to the wind direction guide device F, and the efficient air-conditioning operation is continued.

  If the refrigeration cycle operation is continued for a long time, it is captured by the front air filter 18 and the upper air filter 17, and the amount of adhering dust increases, resulting in resistance to air circulation. Therefore, the air filter cleaning unit S is periodically operated to remove the dust adhering to the air filters 18 and 17 and discharge it to the outdoors.

  Note that, during the cooling operation and the heating operation, the posture of the airflow direction guide device F is changed and adjusted as described later.

  FIG. 10A is a cross-sectional view of a part of the indoor unit during the cooling operation, and FIG. 10B is a diagram illustrating the posture of the airflow direction guide device F during the cooling operation. FIG. 11A is a cross-sectional view of a part of the indoor unit during the heating operation, and FIG. 11B is a diagram illustrating the posture of the wind direction guiding device F during the heating operation.

  First, the attitude of the wind direction guide device F during the cooling operation will be described.

  When the cooling operation start signal enters the control unit R, the control unit R immediately sends a drive signal to the up / down wind direction louver drive motor 30A. The up / down wind direction louver drive gear 32 is rotationally driven, and the drive shaft 43 provided with the gear portion 44 meshing with the drive gear 32 is rotationally driven.

  Since the pivot hole 49 in the support rib 48 on the left side of the vertical wind direction louver 7A is engaged with the outer angle shaft 46 of the drive shaft 43, the vertical wind direction louver 7A rotates the pivot hole 49 in the support rib 48. It is rotationally driven as the center.

  As described above, the drive rod 34 constituting the left / right wind direction louver drive mechanism 31B passes through the center of the pivot hole 49 of the support rib 48 that is the center of rotation of the up / down wind direction louver 7A. The drive rod 34 is rotationally driven together with the drive shaft 43, but the groove portion 42 provided in the drive rod 34 rotates idly with respect to the lock claw d provided in the coupling fixture 63.

  Therefore, there is no sliding movement of the drive rod 34 and the connecting fixture 63. Since there is no movement of the connecting rod 55 connected to the connecting fixture 63 on the left side, the postures of all the left and right wind direction louvers 7B connected to the connecting rod 55 are fixed.

  On the other hand, in the support rib 48 on the right side of the up / down wind direction louver 7 </ b> A, a pivotal support hole made of a round hole rotates with respect to the slide shaft part 37 of the drive rod 34. Here again, the drive rod 34 constituting the left / right wind direction louver drive mechanism 31B passes through the center of the pivot support hole of the support rib 48 which is the center of rotation of the up / down wind direction louver 7A.

  However, since the right and left wind direction louver drive motor 30B is stopped, there is no sliding movement of the drive rod 34 and the connection fixture 63, and the groove 42 of the drive rod 34 and the lock claw d of the connection fixture 63 are idle. Just do it. Since there is no movement of the connecting rod 55 connected to the connecting fixture 63 on the right side, the postures of all the left and right wind direction louvers 7B on the right side are fixed.

  As shown in FIGS. 10A and 10B, when the vertical wind direction louver 7A is inclined so as to follow the blowout ventilation path 15A, the control unit R stops and controls the rotation of the vertical wind direction louver drive motor 30A. The supporting rib 48 is located on the upper surface side of the up / down air direction louver 7A, and the left / right air direction louver 7B supported via the drive shaft 43 and the like is also located on the upper surface side of the up / down air direction louver 7A.

  The controller R controls the start of the cooling refrigeration cycle operation, and controls the left and right wind direction louver drive motor 30B to rotate forward and reverse. While the refrigeration cycle action is performed, the left and right wind direction louver drive gear 33 is rotationally driven, and the drive rod 34 provided with the rack portion 35 is slidably biased in the axial direction.

The connecting fixture 63 that is integrally connected to the drive rod 34 is slid and biased, and the connecting rod 55 having the connecting projection 68 that engages with the connecting rod hooking portion 65 of the connecting fixture 63 is slid and biased in the same direction. .
The left and right wind direction louver 7B has an adjustment projection 54 that engages with the hole 59 of the left and right wind direction louver adjuster 58 as a fulcrum, and an engagement projection 53 that engages with the hole 56 of the connection rod 55 as an operating point. As it moves, it is urged to rotate integrally.

  In other words, the plurality of left and right wind direction louvers 7B are simultaneously rotated in the same direction via the connection rod 55 by the movement of the connection fixture 63. The left / right wind direction louver drive motor 30B is controlled to rotate in a predetermined direction for a predetermined time and then to rotate in a direction opposite to the predetermined direction for a predetermined time.

  The connecting fixture 63 and the connecting rod 55 are reciprocally driven by a predetermined time, and accordingly, the plurality of left and right wind direction louvers 7B are so-called swinging motions that are simultaneously driven to rotate in a predetermined direction and an anti-predetermined direction. The cold air blown out from the blowout port 6 during the refrigeration cycle operation is guided in the left-right direction and reaches every corner of the room.

  Since the plurality of guide protrusions 51 provided on the side ends of the left and right wind direction louvers 7B are streamlined, the cool air can be smoothly passed along the guide protrusions 51 of the left and right wind direction louvers 7B. As a result, it is possible to improve the blowing efficiency.

  Moreover, the up / down wind direction louver 7A is curved in a concave shape toward the left / right wind direction louver 7B. The cool air blown out from the outlet 6 is guided obliquely forward by the up / down air direction louver 7A and guided along the concave posture of the up / down air direction louver 7A. The cold air is lifted obliquely upward by the up / down wind direction louver 7A as indicated by arrows in the figure.

  As a result, the curved up / down airflow direction louver 7A is positioned below the center of the blown airflow, so that the separation of the wind is eliminated and the airflow can be bent efficiently in the horizontal direction. The cool air is guided farther and further upward, so that the occupant's feet are not directly cooled away from the indoor floor surface. By providing the wind direction guide device F, a comfortable cooling air-conditioning can be obtained.

  At this time, even if the up / down wind direction louver drive motor 30A is stopped and the drive shaft 43 engaged via the up / down wind direction louver drive gear 32 is held in a fixed state without being influenced by the sliding movement of the drive rod 34, Good. Alternatively, the up / down wind direction louver drive motor 30A may be driven to rotate forward and reverse, and the up / down wind direction louver 7A may be driven to swing up and down within a predetermined angle range.

  The drive shaft 43 that constitutes the vertical wind direction louver drive mechanism 31A is fitted into the pivot hole 49 of the support rib 48 provided in the vertical wind direction louver 7A, and is driven by the vertical wind direction louver drive motor 30A. 48 and the vertical wind direction louver 7A are rotationally displaced.

  A drive rod 34 having a hexagonal cross section in the central axis of the drive shaft 43 and a square shaft portion 40 having a hexagonal outer cross section is fitted so as to be able to advance and retract along the axial direction. Since the drive rod 34 rotates in synchronization with the drive shaft 43, power can be transmitted to the left and right wind direction louvers 7B without loss even if the vertical wind direction louver 7A is rotationally driven.

  When the heating operation mode is selected, the control unit R controls the up / down air direction louver drive motor 30A to rotate the up / down air direction louver drive gear 32, and the up / down air direction louver 7A is turned through the drive shaft 43 in FIGS. 11A and 11B. Set to a substantially vertical posture as shown in. Accordingly, the left / right wind direction louver 7B is located on the back side of the up / down wind direction louver 7A.

  While maintaining this posture, the refrigerating cycle operation of heating is performed, and the left and right airflow direction louver drive motor 30B is controlled to rotate forward and backward. At this time, the vertical wind direction louver drive motor 30A may be energized to swing the vertical wind direction louver 7A within a predetermined angular range.

  As described above, the left and right wind direction louver 7B performs a so-called swing motion as the left and right wind direction louver drive motor 30 is driven, and guides the warm air blown from the outlet 6 to every corner of the room. The guide protrusions 51 provided on the left and right wind direction louvers 7B smoothly guide the warm air and improve the blowing efficiency.

  Moreover, the up / down wind direction louver 7A is curved in a concave shape toward the left / right wind direction louver 7B. As shown by the arrows in the drawing, the warm air blown out from the blowout port 6 is guided to be blown downward by the vertical wind direction louver 7A and guided downward along the concave posture of the vertical wind direction louver 7A.

  As a result, since the vertical wind direction louver 7A is located above the center of the blown airflow, the separation of the wind is eliminated, and the airflow can be efficiently bent downward. Warm air is guided from the indoor unit to the floor in the room to warm the feet of the residents. By providing the wind direction guide device F, a comfortable heating air-conditioning system of so-called head cold foot heat can be obtained.

  Thus, in the cooling operation and the heating operation, the up / down wind direction louver 7A and the left / right wind direction louver 7B are in a position where they are substantially reversed, and the tilt posture of the left / right wind direction louver 7B changes to the opposite side by switching between these operations.

  Therefore, it is preferable to perform control so as to automatically reverse the wind direction angle of the left and right wind direction louver 7B with respect to the left and right wind direction guidance required according to the selection of the operation mode. It is not necessary to reset the left and right wind directions each time the operation mode is changed, and the operation can be simplified.

  In the actual wind direction guide device F, the up / down wind direction louver 7A and the left / right wind direction louver 7B are configured in the same color, and the left / right wind direction louver adjuster 58 and the connecting rod 55 configuring the left / right wind direction louver drive mechanism 31B are also configured in the same color. It looks good and the left and right wind direction louvers 7B are emphasized so that the wind direction can be easily adjusted with a remote controller or the like.

  In both the cooling operation and the heating operation, due to the configuration of the wind direction guide device F, the left / right wind direction louver adjuster 58 is attached to the substantially middle portion in the Y direction of the up / down wind direction louver 7A, and is connected to the left / right wind direction louver 7B. A collar 55 and a connecting fixture 63 are provided.

  That is, when heat exchange air, which is cold air and warm air, is blown out and guided along the up / down wind direction louver 7A constituting the wind direction guiding device F, the left / right wind direction louver 7B Most of the left and right wind direction louver drive mechanism 31B is provided.

  Therefore, regardless of whether it is in cooling operation or heating operation, the left and right wind direction louver drive mechanism 31B is less likely to become a blowing resistance of heat exchange air, and can smoothly flow by suppressing the cause of turbulence. To do.

  In order to remove the up / down wind direction louver 7A and the left / right wind direction louver 7B from the outlet 6 during maintenance, the left / right wind direction louver drive motor 30B is rotationally driven in a predetermined direction in advance to slide the drive rod 34, as shown in FIG. As shown by a two-dot chain line, the drive motor 30B is stopped with the left and right connecting fixtures 63 in close contact with the left and right support ribs 48.

  After that, if the right and left wind direction louver adjuster 58 is pulled up and bent by holding the substantially middle portion in the longitudinal direction (X direction), the left and right wind direction louver adjuster 58 and the right and left wind direction louver 7B, the connecting rod 55 and the connecting fixture 63 are integrated. It can be removed from the up / down wind direction louver 7A, and the necessary maintenance can be easily performed.

  Further, the support rib 48 on the left side is in a state in which the tip of the drive rod 34 is drawn from the tip of the outer angle shaft 46 of the drive shaft 43 to the maximum, and the tip of the drive rod 34 is supported on the support rib 48 on the right side. The support rib 48 of the up / down airflow direction louver 7A can be easily removed from the tip of the drive rod 34 if it is pulled to the maximum from the side surface.

  Therefore, necessary maintenance can be performed for the up / down wind direction louver 7A. When the maintenance for the left / right wind direction louver 7B and the up / down wind direction louver 7A is completed and attached to a predetermined portion again, the above-described process may be performed.

  At the time of initialization (initial operation setting) with respect to the left and right wind direction louvers 7B and when the refrigeration cycle operation is stopped, the left and right wind direction louvers 7B of the left group connected to the left connecting rod 55 as shown in FIG. The connecting fixture 63 is brought into contact with the left supporting rib 48 by tilting leftward.

  Similarly, the right and left wind direction louvers 7B of the right group connected to the right connecting rod 55 are tilted rightward to bring the connecting fixture 63 into contact with the right support rib 48. Thus, at the start of operation, the left / right wind direction louver 7B is always moved from the determined position, and the value of the number of drive pulses energized to the left / right wind direction louver drive motor 30B can be set to the determined value. In addition, at the start of operation, the initial operation of driving after returning to a predetermined position can be omitted.

  In the present invention, the up-and-down wind direction louver 7A and the left-and-right wind direction louver 7B are integrally configured. Therefore, compared to a general configuration in which the up-and-down wind direction louver and the left-and-right wind direction louver are separately arranged before and after the ventilation path, Accordingly, the indoor unit body 1 can be made thinner.

  The heat exchange air guided from the indoor blower 10 along the blowout ventilation path 15A can be sent straight to the blowout opening 6, and the reduction of the wind speed can be suppressed. That is, while having the air blowing capacity of the same blower 10, heat exchange air can be guided to a farther place in the room, and comfortable air conditioning can be obtained.

  Since the wind direction guide device F, which is a wind direction deflection portion, can be arranged at the outlet 6, the deflection width of the air sent straight from the blowout air passage 15 </ b> A in the horizontal direction in the room can be increased, and the airflow is reliably bent in the horizontal direction. It is done. Therefore, it is possible to increase the amount of air blown in the left-right direction, and the range of the left and right air blowing angles can be greatly expanded.

  The left / right wind direction louver 7B is mounted on the up / down wind direction louver 7A, the left / right wind direction louver 7B is driven by an actuator, and the up / down wind direction louver 7A is driven by a single actuator. The left and right wind direction louvers 7B can be positioned in the vertical direction relative to the left and right wind direction louvers 7B.

  As described above, when the vertical relationship between the vertical wind direction louver 7A and the horizontal wind direction louver 7B is reversed, the vertical direction is controlled in order to change the position of the horizontal wind direction louver 7B in the reverse horizontal direction. When the rotation is reversed, the wind direction in the left-right direction is automatically corrected, and the desired wind direction can be obtained without particular concern by the user.

FIG. 12A, FIG. 12B, and FIG. 12C have shown the wind direction guide apparatus Fa of the modification.
FIG. 12A shows the movable panel 2 </ b> A with the front suction port 4 opened, but when the refrigeration cycle operation in which the wind direction guiding device Fa closes the outlet 6 is stopped. At this time, it is the up / down wind direction louver 7A that actually closes the outlet 6 and the left / right wind direction louver 7B integral with the up / down wind direction louver 7A is behind the up / down wind direction louver 7A and is shielded from the room.

  FIG. 12B shows the wind direction guide device Fa during the cooling operation. When the refrigeration cycle is stopped, the vertical wind direction louver 7A and the horizontal wind direction louver 7B are rotated counterclockwise by a predetermined angle so that the vertical wind direction louver 7A has a substantially horizontal posture. Position.

  As a result, the rear end of the up / down airflow direction louver 7A is close to the lower wall constituting the blowout ventilation path 15A, and there is almost no gap. Since the left / right wind direction louver 7B is located on the upper surface side of the up / down wind direction louver 7A, the cool air that has been guided through the blowout ventilation path 15A is the posture position and form of the up / down wind direction louver 7A and the position and form of the left / right wind direction louver 7B. By this, the horizontal blowing is efficiently guided.

  As described above, the wind direction guide device Fa provides a horizontal blowing guide for the cold air blown from the blowout port 6, and can be smoothly guided to a further distance to obtain a comfortable air conditioning.

  FIG. 12C shows the wind direction guide device Fa during the heating operation. The wind direction guide device Fa is driven to rotate counterclockwise from the position where the refrigeration cycle operation is stopped. Once the cooling operation described above is performed, the rotation continues in the same direction and stops at a position just before the end of the up / down airflow direction louver 7A comes into contact with the upper surface wall of the blowout air passage 15A.

  The up-and-down air direction louver 7A is reversed with the far end at the time of horizontal blowing guidance during cooling operation as the tip and the tip as the far end. In addition, the rear side end here is close to the upper surface wall of the blowout ventilation path 15A, there is almost no gap, and there is no room for warm air to pass through.

  Since the left / right wind direction louver 7B is located on the back side of the up / down wind direction louver 7A, the warm air guided to the blowout ventilation passage 15A depends on the posture position and form of the up / down wind direction louver 7A and the position and form of the left / right wind direction louver 7B. , The lower blowing guidance is performed efficiently.

Therefore, the up / down air direction louver drive motor 30A that rotationally drives the up / down air direction louver 7A via the up / down air direction louver drive mechanism 31A moves from a stopped state to a predetermined direction in both the cooling operation and the heating operation. What is necessary is just to rotationally drive.
When these operations are stopped, in both the cooling operation and the heating operation, the up / down air direction louver drive motor 30A is driven to rotate in the opposite direction, and the air outlet 6 is closed by the up / down air direction louver 7A, thereby facilitating the control. To do.

FIG. 13 is a schematic plan view showing a modification of the up / down wind direction louver 7A1 constituting the wind direction guiding device F. FIG.
The up / down wind direction louver 7A1 has a horizontally long shape in which the left-right width direction is long with respect to the depth direction, and both side portions h in the left-right width direction are formed so that only one side edge is gradually shortened in the depth direction. Assuming that the part indicated by the arrow in the figure is the front of the wind direction guide device F, the rear edge (back side) of this device F is short only on both sides in the left-right width direction.

  Further, as described above, two sets of left and right wind direction louvers 7B that are integrally attached to the up and down wind direction louver 7A1 are provided on the left and right sides of the substantially middle portion in the left and right width direction of the up and down wind direction louver 7A1. The innermost left and right wind direction louvers 7Ba are opposed to each other when they are oriented in an inverted C shape in plan view as shown by a two-dot chain line in FIG. The depth direction is short so as not to touch.

  Further, the left and right wind direction louvers 7B located in both outer side portions (here, two in each group) h protrude from the upper and lower wind direction louvers 7A1 in the form of the upper and lower wind direction louvers 7A1.

  That is, since the vertical wind direction louver 7A1 has a shape in which the central portion is extended in the depth direction, the lower blowing characteristic is further improved during heating, but the air volume at the left and right peripheral portions of the outlet 6 is reduced compared to the central portion during cooling. To do.

  However, since the left and right portions of the up / down airflow direction louver 7A1 are shorter than the central portion, a gap between the blowout port 6 and the upper and lower louvers 7A1 can be made large, and the flow of the wind is not hindered. Condensation can be suppressed.

  Furthermore, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments.

  According to the present invention, it is possible to reliably and efficiently switch between the horizontal blowing guide during the cooling operation and the lower blowing guide during the heating operation, thereby improving the wind direction guiding characteristics.

Claims (5)

A suction port and a blow-out port are opened, and a ventilation path that communicates the suction port and the blow-out opening is provided therein. A heat exchanger and a blower are disposed in the ventilation path, and a wind direction guide device is installed in the blow-out opening. Air conditioner indoor unit
The wind direction guiding device is
One up-and-down air direction louver that is formed of a horizontally long flat plate that is long in the left-right width direction with respect to the depth direction, and that controls the vertical direction of the heat exchange air blown from the blow-out port by being driven to rotate.
A plurality of left and right wind direction louvers that are attached to the up and down air direction louvers and that are driven to rotate to control the left and right directions of the heat exchange air that is blown out from the blowout port,
The left and right wind direction louvers are formed so that the length in the depth direction is longer than the length in the vertical direction perpendicular to the depth direction, and is equal to or greater than the length in the depth direction of the up and down wind direction louvers.
The vertical wind direction louver is in a substantially horizontal posture, and the horizontal wind direction louver is positioned on the upper surface side of the vertical wind direction louver to provide horizontal blowing guidance,
An indoor unit of an air conditioner characterized in that the vertical wind direction louver is in a substantially vertical posture, and the left and right wind direction louvers are positioned on the back side of the vertical wind direction louver so as to guide downward blowing. A suction port and a blow-out port are opened, and a ventilation path that communicates the suction port and the blow-out opening is provided therein. A heat exchanger and a blower are disposed in the ventilation path, and a wind direction guide device is installed in the blow-out opening. Air conditioner indoor unit
The wind direction guiding device is
It consists of a horizontally long flat plate with a long left and right width direction with respect to the depth direction, and is curved toward the center of rotation to control the vertical direction of heat exchange air blown out from the outlet by being driven to rotate. One up and down louver,
A plurality of sheets that are attached to the center of rotation of the up-and-down air direction louver and that are connected via a connecting rod and that control the left-right direction of the heat exchange air blown out from the outlet by being driven to rotate together. With left and right wind direction louvers,
The left and right wind direction louvers are formed so that each length in the depth direction is longer than the length in the vertical direction perpendicular to the depth direction, and is equal to or greater than the depth direction length of the up and down wind direction louvers. And
The vertical wind direction louver is in a substantially horizontal posture, and the horizontal wind direction louver is positioned on the upper surface side of the vertical wind direction louver to provide horizontal blowing guidance,
An indoor unit of an air conditioner characterized in that the vertical wind direction louver is in a substantially vertical posture, and the left and right wind direction louvers are positioned on the back side of the vertical wind direction louver so as to guide downward blowing. The drive source connected to the up-and-down air direction louver is provided on one side of the outlet,
The connection rod connected to the plurality of left and right wind direction louvers is provided along a substantially middle portion of the vertical wind direction louver in the depth direction, and the connection rod is provided on one side and / or the other side of the outlet. The indoor unit for an air conditioner according to any one of claims 1 and 2, wherein the indoor unit is connected to a drive source provided in the unit. A suction port and a blow-out port are opened, and a ventilation path that communicates the suction port and the blow-out opening is provided therein. A heat exchanger and a blower are disposed in the ventilation path, and a wind direction guide device is installed in the blow-out opening. Air conditioner indoor unit
The wind direction guiding device is
One up-and-down air direction louver that opens and closes the outlet and controls the vertical direction of heat exchange air blown from the outlet;
A plurality of right and left wind direction louvers attached to one side surface of the up and down wind direction louver and controlling the left and right direction of the heat exchange air blown out from the outlet;
During cooling operation, the vertical airflow direction louver is driven to rotate in a predetermined direction from the position where the air outlet is closed, so that the horizontal airflow direction louver is positioned on the upper surface of the vertical airflow direction louver, and the horizontal airflow guidance is provided. ,
During heating operation, from the horizontal blowing posture during cooling operation, the vertical wind direction louver is further driven to rotate in a predetermined direction, and the back end in the horizontal blowing posture is the tip, and the tip is reversed to the back end. An air conditioner indoor unit characterized in that it is configured to guide downward blowing. 5. The air conditioner according to claim 1, wherein the left and right wind direction plates are provided with a plurality of streamlined guide protrusions at the front edge portion or the rear edge portion. Indoor unit.

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