JP2016050722A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner capable of imparting good impression to the attitude of a plurality of divided vertical wind direction plates.SOLUTION: An air conditioner includes a vertical wind direction plate that is arranged at a blowout port of air flow, and rotates in a vertical direction around a rotational shaft and controls the wind direction of air flow blown out from the blowout port to the vertical direction. The vertical wind direction plate is divided into plural ones, such as right and left blades 170a, 170c, and a center blade 170b, in a width direction of the blowout port. The shaft center of the rotational shaft of at least one vertical wind direction plate out of the divided vertical wind direction plates and the shaft center of the rotational shaft of another vertical wind direction plate are positioned nonlinearly.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner having an improved vertical wind direction plate.

  Air conditioners are widely used as air conditioners, and various attempts have been made to make them more comfortable and easier to use. One of them is the shape of the vertical wind direction plate. For example, Patent Document 1 describes a case where an up-and-down wind direction plate is divided into three in the left-right direction.

  Among air conditioners, separate type wall-mounted types are widely used in terms of matching with houses, design, and low noise. In this case, since the indoor unit is installed on the upper part of the indoor wall, during the heating operation, the vertical wind direction plate is directed downward as much as possible so that the hot air reaches as close to the floor as possible. Further, during the cooling operation, the vertical wind direction plate is made to be close to the horizontal direction so that the cold air is widely circulated in the room.

  Further, since the wall-mounted air conditioner is exposed from the wall, it is desired to have an appearance that does not disturb the indoor atmosphere when not in use.

JP 2001-50579 A

  The movement of the up-and-down wind direction plate of the air conditioner can be clearly grasped visually by a person in the room during operation. When adopting the vertical wind direction plate divided into multiple in the left and right direction, when the divided vertical wind direction plate is controlled in the same direction, if the tip of the vertical wind direction plate moves slightly or deviates, There is a risk of giving an unnatural impression to people in the room. For this reason, the impression which the attitude | position (especially deviation | shift of a front-end | tip) of the up-down wind direction board divided | segmented into plurality gives to the person in a room | chamber interior is especially important for a product. On the other hand, if the deviation is to be eliminated, there is a problem that high accuracy is required at the time of manufacturing, assembling, and controlling the parts, resulting in high costs. In Patent Document 1, problems from a design viewpoint in the movement of the vertical wind direction plate are not examined.

  This invention is invention for solving the said subject, Comprising: It aims at providing the air conditioner which can give a favorable impression with respect to the attitude | position of the up-and-down wind direction board divided | segmented into plurality.

  In order to achieve the above object, the air conditioner of the present invention is arranged at an air outlet (for example, the air outlet 109b), and is rotated in the vertical direction around the rotation axis and blown from the outlet. The vertical wind direction plate (for example, the upper vertical wind direction plate 170) is divided into a plurality of portions in the width direction of the outlet, and at least one of the divided vertical wind direction plates is provided. The axis center of the rotation axis of one up-and-down wind direction board and the axis center of the rotation axis of the other up-and-down direction plate are on a non-collinear line. Other aspects of the present invention will be described in the embodiments described later.

  According to the present invention, a good impression can be given to the posture of the vertical wind direction plate divided into a plurality of parts.

It is explanatory drawing which shows the external appearance structure of the air conditioner which concerns on this embodiment. It is explanatory drawing which shows the structure of the indoor unit of the air conditioner which concerns on this embodiment. It is explanatory drawing which shows that the rotating shaft of a center blade | wing and the rotating shaft of a right-and-left blade | wing are on a non-collinear line. It is explanatory drawing which shows the periphery of the axis | shaft of the blade | wing of an upper up-down wind direction board. It is explanatory drawing which shows the positional relationship of a center blade | wing and a left-right blade | wing. It is the side view which shows the state at the time of the operation stop of an indoor unit, and the perspective view of an air blowing outlet. It is the side view which shows the state at the time of air_conditionaing | cooling operation of an indoor unit, and the perspective view of an air blowing outlet. It is a side view which shows the state at the time of the heating operation of an indoor unit, and a perspective view of an air outlet. It is explanatory drawing which shows the setting angle of the up-down wind direction board at the time of a driving | operation. It is explanatory drawing which shows the motion at the time of starting and a stop of an up-and-down wind direction board. It is explanatory drawing which shows the structure of the control system of an air conditioner. It is explanatory drawing which shows the motion at the time of the swing of an upper up-down wind direction board.

DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 1 is an explanatory diagram showing an external configuration of an air conditioner according to the present embodiment. FIG. 2 is an explanatory diagram illustrating a configuration of the indoor unit of the air conditioner according to the present embodiment. FIG. 3 is an explanatory diagram showing that the rotation axis of the central blade and the rotation shafts of the left and right blades are on a non-collinear line (shifted).

  The air conditioner A connects the indoor unit 100 and the outdoor unit 200 with a connection pipe, and air-conditions the room. In the indoor unit 100, a heat exchanger 102 is placed at the center of a housing base 101 (see FIG. 2), a blower fan 103 is placed under the heat exchanger 102, and a drain pan 99 (dew pan, housing) is installed. These are attached, covered with a decorative frame 101c, and a front panel 106 is attached to the front surface of the decorative frame 101c.

  The blown airflow from the blower fan 103 is passed through a blowout air passage 109a having a width substantially equal to the length of the blower fan 103, and the left and right airflow direction plates 160 disposed in the middle of the blowout air passage 109a deflect the left and right directions of the airflow. Furthermore, the upper and lower airflow direction plates 170 (upper and lower airflow direction plates) and the lower upper and lower airflow direction plates 180 (upper and lower airflow direction plates) disposed in the air outlet 109b can deflect the airflow in the vertical direction and blow it out indoors. ing.

  The upper vertical wind direction plate 170 is roughly divided into three in the left-right direction, and includes left and right blades 170a, a central blade 170b, and left and right blades 170c. The lower up-down wind direction plate 180 is not divided in the left-right direction, and is composed of a single blade.

  Basic internal structures such as the blower fan 103, the filter 108, the heat exchanger 102, the drain pan 99, the left and right wind direction plates 160, the upper vertical wind direction plate 170, and the lower vertical wind direction plate 180 are attached to the housing base 101. . These basic internal structures are included in a casing made up of a casing base 101, a decorative frame 101c, and a front panel 106 to constitute the indoor unit 100. Further, on the lower side of the front panel 106, there is a display unit for displaying the operation status, a sensor unit, and a light receiving unit Q for receiving infrared operation signals from a separate remote controller 40 (remote controller, air conditioning control terminal). Has been placed.

  The indoor unit 100 includes an imaging unit 110 that images a room and a temperature detection unit 130 as sensor units. A temperature detection unit 130 that detects the indoor temperature is disposed on one side of the imaging unit 110. With such an arrangement, it is possible to reduce detection errors in the distance and angle between the imaging unit 110 and the temperature detection unit 130 to be detected. A near-infrared light source 120 is disposed on the other side of the imaging unit 110. With such an arrangement, the difference between the detection range and angle of the imaging unit 110 and the irradiation range and angle of the near-infrared light source 120 can be reduced. That is, it is desirable to arrange the temperature detection unit 130 and the near-infrared light source 120 on both sides of the imaging unit 110. In addition, the near-infrared light source 120 is turned on before photographing and the near-infrared light is irradiated indoors, so that the imaging unit 110 can clearly capture the near-infrared reflected light.

  Further, in the present embodiment, a foot monitor 140 is disposed beside the imaging unit 110 or the temperature detection unit 130. When the foot is detected by the imaging unit 110 or the temperature detection unit 130 or when the foot is estimated, the foot monitor 140 is turned on, and the user can confirm that the foot has been detected. The foot monitor 140 may be disposed not only on the indoor unit 100 but also on the remote controller 40.

  The front panel 106 is rotated by a drive motor with a rotation shaft provided at a lower portion as a fulcrum, and is configured to open the air suction port 107a (see FIG. 2) when the air conditioner A is operated. Thus, during operation, room air is sucked into the indoor unit 100 from the front air suction port 107a in addition to the upper air suction port 107.

  An air outlet 109b formed on the lower surface of the decorative frame 101c communicates with the rear outlet air passage 109a. The upper vertical wind direction plate 170 and the lower vertical wind direction plate 180 are configured to have a large curved surface that is substantially concealed from the air outlet 109b and is continuous with the bottom surface of the indoor unit 100 in the closed state.

  The lower up-and-down air direction plate 180 is rotated at the time of operation of the air conditioner by the drive motor in response to an instruction from the remote controller 40 with the rotation shafts provided at both ends as a fulcrum to open the air outlet 109b. , Hold in that state.

  Further, the left and right blades 170a, 170c and the central blade 170b of the upper vertical wind direction plate 170 are rotated at the time of operation of the air conditioner by a drive motor provided at one end with the rotation shafts provided at both ends as fulcrums, The air outlet 109b is opened and held in that state. Details will be described later. The three upper blades of the upper and lower airflow direction plates 170 and the lower blades of the upper and lower airflow direction plate 180 are controlled by a drive motor for each blade so that they can be controlled independently.

  FIG. 11 is an explanatory diagram showing the configuration of the control system of the air conditioner. The indoor unit 100 includes a control unit 60, and the control unit 60 is provided with a microcomputer. The microcomputer receives information from the remote controller 40 via the transmission / reception unit 47 and information from the sensor unit 50 such as the indoor temperature sensor, the indoor humidity sensor, the imaging unit 110, and the temperature detection unit 130. Based on these signals, the microcomputer controls the blower fan 103, the drive motor for the front panel 106, the up / down wind direction plate drive motor, the left / right wind direction plate drive motor, and the like, and controls communication with the outdoor unit 200. Control 100.

  As shown in FIG. 11, the left and right wind direction plates 160 (see FIG. 2) are divided into two parts and are controlled by independent drive motors for the left side and the right side. The three blades of the left and right blades (left and right blades 170a), the central blade 170b, and the right blade (left and right blades 170c) of the upper vertical wind direction plate 170 are independently controlled by a drive motor. The blades of the lower vertical wind direction plate 180 are controlled by two drive motors.

  Returning to FIG. 2, when the operation of the air conditioner A is stopped, the front panel 106 closes the air suction port 107a, and the upper vertical wind direction plate 170 and the lower vertical wind direction plate 180 close the air blowing port 109b. Be controlled.

  The left and right wind direction plates 160 are rotated by a drive motor with a rotation shaft provided at the lower end portion as a fulcrum, and are rotated in accordance with an instruction from the remote controller 40 and held in that state. As a result, the blown air is blown out in the left and right desired directions. By instructing from the remote control 40, the left and right wind direction plates 160, the upper and lower wind direction plates 170 and the lower upper and lower wind direction plates 180 are periodically swung during the operation of the air conditioner, and are periodically blown out over a wide range in the room. Air can also be sent.

  The drain pan 99 is disposed below the lower ends of the front and rear sides of the heat exchanger 102 and is provided to receive condensed water generated in the heat exchanger 102 during cooling operation and dehumidifying operation. The collected condensed water is discharged to the outside through the drain pipe.

  In the outdoor unit 200, a compressor, an outdoor heat exchanger, and an outdoor fan are mounted on a base, covered with an outer box, and a connection pipe from the indoor unit 100 is connected to a pipe connection valve.

  The outer box of the outdoor unit 200 is composed of a front plate, a top plate, a side plate, etc., and an outdoor air suction portion is provided on the outer surface facing the outdoor heat exchanger, and air can freely flow through the front plate facing the outdoor fan. A fan cover is provided. The outdoor fan is rotationally driven so that the outdoor heat exchanger is on the upstream side and the fan cover is on the downstream side, and distributes outdoor air to the outdoor heat exchanger as described above.

  When this air conditioner is operated, it is connected to a power source and the remote controller 40 is operated to perform desired operations such as heating, dehumidification, and cooling. In the case of driving such as heating, when a driving operation signal is given from the remote controller 40, the microcomputer operates the heating mode or the like based on the operation signal from the remote controller 40 or information from various sensors if automatic driving is set. To decide.

  Next, the control unit of the outdoor unit 200 is instructed to operate according to the determined operation mode, and the blower fan 103 is driven according to the determined operation mode, and the indoor air is supplied to the heat exchanger 102 from the air suction ports 107 and 107a. Circulate. The control unit of the outdoor unit 200 controls a compressor, a blower motor, a control valve, and the like according to an instruction from the indoor unit 100 to circulate refrigerant from the compressor to the refrigeration cycle, and from the outdoor air suction unit to the outdoor heat exchanger Allow outdoor air to flow through. Thus, operations such as heating are performed.

  Next, the rotational axis shifting structure (non-collinear structure), which is a feature of the present invention, will be described with reference to FIG. FIG. 3A shows a state after the upper vertical wind direction plate 170 and the lower vertical wind direction plate 180 are rotated during the heating operation. FIG. 3B shows an enlarged view of the A portion, and FIG. 3C shows an enlarged view of the B portion.

  The central blade 170b and the left and right blades 170a and 170c of the upper vertical wind direction plate 170 enhance the dynamic and static aesthetics (designability) of the three blades by deliberately shifting the rotation shafts of the blades.

  Here, as a comparative example, it is considered that the rotation axes of the three blades are arranged on the same straight line, and control is performed so that the blade tips are aligned. In general, there is one in which a rotating shaft (rotating shaft) for rotating a blade and a driving shaft of a stepping motor are connected via a gear. Even a stepping motor with a small number of steps can obtain a desired rotation angle by selecting a gear ratio. Alternatively, the rotary shaft that rotates the blades and the drive shaft of the stepping motor can be connected by a link to convert the rotary motion into a swing motion.

  When the drive shaft is connected by the above-described gear or link, an error may occur in the rotational position accuracy due to gear backlash or link “play”. For this reason, it is desirable to prevent an error in the rotation angle due to “play” in the rotation direction of the blade. However, if an attempt is made to prevent an error, the tolerance must be narrowed, resulting in high costs. Further, an adjustment amount for absorbing “play” may be obtained in advance, and the adjustment may be performed when the rotation direction is reversed, but it may be difficult to completely adjust in consideration of secular change. . In this case, the three blade tips often do not coincide even when controlled to the same rotational position. If the movement of the three blades deviates even a little, the user may feel that it is out of order or that the movement is strange.

  In the present embodiment, the rotation axes of the three blades are not arranged on the same straight line from the beginning, but the centers of the rotation axes of the central blade 170b and the left and right blades 170a and 170c are shifted. Further, the left and right blades 170a and the left and right blades 170c are spaced apart from the central blade 170b, and therefore, even if a slight error occurs in the rotational position accuracy, it is presumed that they are misaligned. Therefore, it is possible to provide an air conditioner that does not disturb the interior atmosphere even during a dynamic state or a static state during air conditioning operation. In addition, as will be described later, there is no deviation when it is closed, and a certain movement that occurs when it is opened is performed from the beginning. There is nothing.

  In the present embodiment, as shown in FIG. 3B, the axial center 171a of the left and right blades 170a is shifted from the axial center 171b of the central blade 170b. Further, as shown in FIG. 3C, the axial center 171b of the central blade 170b and the axial center 171c of the left and right blades 170c are similarly shifted. Specifically, the axial center 171b of the central blade 170b is about 8 mm (axial center 171b) forward (front side in the horizontal direction) on the front panel 106 side with respect to the axial center 171c of the left and right blades 170c or the axial center 171a of the left and right blades 170a. And a distance in the horizontal direction between the center 171a and the shaft centers 171c) and about 4 mm (a distance in the vertical direction between the shaft center 171b and the shaft centers 171a and 171c) on the lower side (lower side in the vertical direction). Further description will be given with reference to FIGS. Other symbols will be described later with reference to FIG.

  FIG. 4 is an explanatory view showing the periphery of the blade axis of the upper vertical wind direction plate. Reference is made to FIG. 2 as appropriate. In FIG. 4, the left and right blades 170a and 170c are not shown. A left column 191 and a right column 192 supported by a drain pan 99 (housing) are disposed on both sides of the central blade 170 b of the upper vertical wind direction plate 170. The left column 191 includes a shaft portion 194a of the drive shaft of the central blade 170b and a shaft portion 193b of the non-drive shaft (driven shaft) of the left and right blades 170a (not shown). The right column 192 includes a shaft portion 194b of the non-drive shaft (driven shaft) of the central blade 170b and a shaft portion 195a of the non-drive shaft of the left and right blades 170c (not shown). Moreover, the shaft part 193a of the drive shaft inserted in the through-hole provided in the side wall 109d of the air blowing air path 109a is at one end of the left and right blades 170a of the upper vertical wind direction plate 170. Similarly, at one end of the left and right blades 170c of the upper vertical wind direction plate 170, there is a shaft portion 195b of the drive shaft inserted through a through hole provided in the side wall 109e of the air blowing air passage 109a.

  A shaft support arm portion 174a having a shaft coupling portion 174c and a shaft support arm portion 174b having a sliding bearing portion 174d are provided at both ends of the central blade 170b. The connecting portion 174c of the shaft support arm portion 174a is inserted and fixed to the shaft portion 194a which is a driving portion. The sliding bearing portion 174d of the shaft support arm portion 174b is inserted into the shaft portion 194b and slidably holds the central blade 170b.

  A shaft support arm portion 173a having a shaft coupling portion 173c and a shaft support arm portion 173b having a sliding bearing portion 173d are provided at both ends of the left and right blades 170a. The connecting portion 173c of the shaft support arm portion 173a is inserted and fixed to the shaft portion 193a which is a drive portion. The sliding bearing portion 173d of the shaft support arm portion 173b is inserted into the shaft portion 193b and slidably holds the left and right blades 170a.

  A shaft support arm portion 175a having a sliding bearing portion 175c and a shaft support arm portion 175b having a shaft connection portion 175d are provided at both ends of the left and right blades 170c. The connecting portion 175d of the shaft support arm portion 175b is inserted and fixed to the shaft portion 195b which is a drive portion. The sliding bearing portion 175c of the shaft support arm portion 175a is inserted into the shaft portion 195a, and the left and right blades 170c are slidably held.

  FIG. 5 is an explanatory diagram showing the positional relationship between the central blade and the left and right blades. 5A is a view taken along the line BB shown in FIG. 4, and FIG. 5B is a view taken along the line AA shown in FIG. As shown in FIG. 5A, the shaft center 171b of the central blade 170b is arranged to be shifted leftward and downward in the drawing with respect to the shaft center 171a of the left and right blades 170a.

  Further, as shown in FIG. 5B, the shaft center 171b of the central blade 170b is shifted rightward and downward in the drawing with respect to the shaft center 171c of the left and right blades 170c corresponding to the shift from the shaft center 171a. Are arranged. Moreover, as shown in FIG.5 (b), the positional relationship when the center blade | wing 170b is fully closed is described as the center blade | wing 170b and the right-and-left blade | wing 170c (two-dot chain line). In addition, although mentioned later, the left support | pillar 191 is shown as a support | pillar which incorporates the gear which pivotally supports the center blade | wing 170b rotatably.

  The relationship between the shaft center and the blade will be described in detail with reference to FIG. 5A. The center blade 170b is supported by the shaft support arm portion 174b with respect to the shaft center 171b. Similarly, the left and right blades 170a are supported by the shaft support arm portion 173b with respect to the shaft center 171a. The turning radius of the blade varies depending on the radius of the shaft support arm portions 173b and 174b. In the present embodiment, the shortest distance Rb between the shaft center 171b and the central blade 170b is set shorter than the shortest distance Ra between the shaft center 171a and the left and right blades 170a. Thereby, the turning radii of the central blade 170b and the left and right blades 170a are made different. Further, coupled with the shift of the center centers 171b and 171a of the central blade 170b and the left and right blades 170a, when opened as shown in FIG. 9 described later (as it rotates downward), the left and right blades 170a and the central blade 170b The side view deviation increases, and when closed, the side view deviation between the left and right blades 170a and the central blade 170b becomes zero.

  In the present embodiment, the left and right blades 170a and 170c are provided with the angle adjustment protrusions 177 of the turning angle so that the allowable turning angle is substantially the same between the central blade 170b and the left and right blades 170a and 170c. Yes. However, by changing the size of the angle adjustment protrusion 177, the turning angle of the left and right blades 170a may be increased to reduce the gap between the left and right blades 170a and the drain pan 99. Thereby, the airflow passing through the gap between the left and right blades 170a and the drain pan 99 can be narrowed down.

Next, the arrangement relationship of the up and down wind direction plates in each operation state is shown.
6A and 6B are a side view and a perspective view of the air outlet when the operation of the indoor unit is stopped. FIG. 6A is a side view of the indoor unit, and FIG. FIG. Reference is made to FIGS. 2 and 4 as appropriate.

  When the operation is stopped without using the air conditioner A, the upper vertical wind direction plate 170 and the lower vertical wind direction plate 180 are controlled by the control unit 60 so as to close the air outlet 109b as shown in FIG. As a result, the upper vertical wind direction plate 170 is pivoted and stored at a position in front of the blower air passage 109a, shields the blower air passage upper surface 109c, and cooperates with the lower vertical wind direction plate 180 to form the air blowout port. 109b is closed.

  At this time, the left and right blades 170a and 170c and the central blade 170b of the upper vertical wind direction plate 170, and the lower vertical wind direction plate 180 form the outer shape from the front surface to the bottom surface of the indoor unit 100 continuously and smoothly on the outer wind direction surface. be able to. For this reason, when not using the air conditioner A, it becomes a soft and calm appearance without unnecessary unevenness, and does not disturb the indoor atmosphere.

  As described above, in the indoor unit 100 according to the embodiment, when the upper vertical wind direction plate 170 divided into a plurality of horizontal directions is closed, the outer shape from the bottom surface of the indoor unit 100 to the front panel 106 is the lower surface during the cooling operation of the vertical wind direction plate. It is smoothly formed with the wind direction.

  Thereby, when the air conditioner A is stopped, the outer shape becomes a smooth shape that continues from the front panel 106 to the lower portion, and a clean design without extra unevenness is obtained. Therefore, it is possible to provide an air conditioner that does not disturb the interior atmosphere even when operation is stopped.

  In the present embodiment, the horizontal length Lb of the central blade 170b is approximately 10% longer than the horizontal length La of the left and right blades 170a and the horizontal length Lc of the left and right blades 170c. This is to prevent the length of the central blade 170b from appearing short (see FIG. 6B) when the lengths La, Lb, and Lc are the same. Moreover, it is for increasing the air volume which can be controlled with the center blade | wing 170b.

  FIG. 7 is a side view showing a state of the indoor unit during cooling operation and a perspective view of the air outlet, (a) is a side view of the indoor unit, and (b) is a view of the indoor unit from a diagonally lower side. FIG. Reference is made to FIGS. 2 and 4 as appropriate.

  When the air conditioner A is in a cooling operation, the upper vertical wind direction plate 170 (left and right blades 170a, 170c, central blade 170b) and the lower vertical wind direction plate 180 are set in a posture that is substantially parallel to or horizontally oriented with the blowing air channel upper surface 109c. used. Since the cold air blown directly hits the occupants (users), discomfort occurs, and thus the direction of the vertical wind direction plate is appropriately adjusted so that the cold air blown does not directly hit the occupants. Is changed with the remote control 40 to keep the room at a comfortable temperature and humidity.

  At this time, when the indoor unit 100 is viewed, since the indoor unit 100 is installed at a high position on the wall of the room, the wind direction surfaces that are the lower surfaces of the left and right blades 170a and 170c and the central blade 170b (the wind direction that is the outer surface when closed) If the surface is in the eyes and the tips of the blades are not aligned, the user may feel uncomfortable, such as an error in rotational position accuracy.

  In the present embodiment, since the center blade 170b and the left and right blades 170a, 170c are controlled to the pivot positions shifted from the beginning in the vertical direction, they are accepted without any discomfort to the user. For example, in FIG. 7A, the tip position of the central blade 170b protrudes about 3 mm in the left direction of the drawing with respect to the tip positions of the left and right blades 170a and 170c (see the position of state C2 in FIG. 9 described later). It is possible to match the impression of the wind direction when the user looks at the wind direction plate with the expected wind direction without feeling uncomfortable during the cooling operation.

  In general, when the operation is stopped and when the cooling operation is performed, the vertical wind direction plate is held in a substantially horizontal posture, so that the deformation of the vertical wind direction plate due to its own weight increases. In the indoor unit 100, since the area near the air outlet 109b is likely to attract attention, the material and shape of the vertical wind direction plate are considered so that the deformation of the vertical wind direction plate is not excessively large. In the present embodiment, since the upper vertical wind direction plate 170 is formed of three wind direction plates, the weight is dispersed and the deformation due to its own weight is small.

  FIG. 8 is a side view showing a state of the indoor unit during heating operation and a perspective view of the air outlet, (a) is a side view of the indoor unit, and (b) is a view of the indoor unit from an obliquely lower side. FIG. Reference is made to FIGS. 2 and 4 as appropriate.

  When the air conditioner A is in a heating operation, the upper vertical wind direction plates 170 (the left and right blades 170a and 170c and the central blade 170b) are used in a posture close to the vertical direction as shown in FIG. Further, the lower vertical wind direction plate 180 is used in a posture having a predetermined angle with respect to the vertical plane. By doing in this way, the warm air flowing through the air blowing air passage 109a blows downward from the indoor unit 100, reaches near the floor, warms the feet, and makes the room a comfortable environment.

  At this time, when the indoor unit 100 is viewed, since the indoor unit 100 is installed at a high position on the wall of the room, the wind direction surfaces that become the upper surfaces of the left and right blades 170a and 170c and the central blade 170b (the wind direction that becomes the inner surface when closed) If the surface is in the eyes and the tips are not aligned, the user may feel uncomfortable, such as an error in the rotational position accuracy.

  In the present embodiment, since the center blade 170b and the left and right blades 170a, 170c are controlled to the pivot positions shifted from the beginning in the vertical direction, they are accepted without any discomfort to the user. For example, the step d (gap) between the central blade 170b and the left and right blades 170a, 170c is about 13 mm (predetermined distance) when viewed from the side in FIG. It is possible to match the impression of the wind direction when the user looks at the up and down wind direction plate with a sense of incongruity during heating operation. In the case of FIG. 8, the step d between the central blade 170b and the left and right blades 170a, 170c is larger than that in FIG. From the relationship of the axial displacement between the central blade 170b and the left and right blades 170a, 170c, the blade displacement increases as the opening degree increases. That is, by making the horizontal displacement between the central blade 170b and the left and right blades 170a, 170c larger than the vertical displacement, when opened as shown in FIG. The structure is such that a deviation in a side view between the blade 170a and the central blade 170b becomes large.

  In general, the difference between the room temperature during heating and the temperature of the hot air blown out is larger than the difference between the room temperature during cooling and the temperature of the cold air blown out. For this reason, the temperature difference between the front and back wind direction surfaces of the lower vertical wind direction plate 180 becomes large, and the lower vertical wind direction plate 180 is bent due to the difference in thermal expansion. In particular, the phenomenon of bending due to a temperature difference is considered during heating. For this reason, for example, if the lower vertical wind direction plate 180 is made hollow, the hollow portion plays a role of air insulation, and heat transfer between the front and back wind direction surfaces of the vertical wind direction plate is reduced.

  The warm air during heating operation is blown downward, and the room is quickly made comfortable. At this time, warm air hits the wind direction surfaces of the central blade 170b of the upper vertical wind direction plate 170 and the left and right blades 170a, 170c, and the air flow is directed downward. At this time, since there is a level difference d between the central blade 170b and the left and right blades 170a and 170c, the airflow hitting the lower surface of the central blade 170b wraps around the upper surfaces of the left and right blades 170a and 170c. For this reason, the temperature difference between the upper and lower surfaces of the left and right blades 170a and 170c is reduced, and the left and right blades 170a and 170c have the effect of reducing the deflection due to the difference in thermal expansion between the front and back surfaces.

  In the cooling operation, it seems that there are few cases where the vertical wind direction plate is directed downward in this way, but also in this case, since there is a step d between the central blade 170b and the left and right blades 170a, 170c, the lower surface of the central blade 170b The airflow that hits the air wraps around the upper surfaces of the left and right blades 170a, 170c. Therefore, the temperature difference between the upper and lower surfaces of the left and right blades 170a and 170c is reduced, and there is an effect of suppressing the occurrence of condensation on the upper surfaces of the left and right blades 170a and 170c.

  As described above, it is possible to provide the air conditioner A in which the appearance of the air outlet 109b is well maintained even during operation.

  In the present embodiment, it is shown in FIG. 3 that a good impression can be given to the posture of the upper vertical wind direction plate 170 divided into a plurality of parts by the shifting structure (non-collinear structure) of the rotation axis of the vertical wind direction plate. However, the present invention is not limited to this. For example, the design of the movements of the plurality of blades can be further enhanced by the control method of the control unit 60 without causing the user to feel uncomfortable. This will be specifically described below. Each blade of the upper vertical wind direction plate 170 will be described as being driven by an independent drive motor.

  FIG. 9 is an explanatory diagram showing a set angle of the up / down wind direction plate during operation. The angle between the left and right blades 170a and the vertical line VL is β1, the angle between the central blade 170b and the vertical line VL is β2, and the angle between the left and right blades 170c and the vertical line VL is β3.

The control part 60 is good to control according to Formula (1).
β1, β3 <β2 (1)
According to the equation (1), the left and right blades 170a, 170c and the central blade 170b do not always have the same set angle, so that the design of the movement of the plurality of blades can be improved (not lowered) without a sense of incongruity to the user. .

As a modification, the control unit 60 may perform control according to the equation (2).
β1, β3> β2 (2)
According to the formula (2), the left and right blades 170a, 170c and the central blade 170b do not always have the same set angle, so that it is possible to improve the design of the movement of the plurality of blades without a sense of incongruity to the user.

  In addition, it is not desirable to mix Formula (1) and Formula (2) in the cooling operation shown in FIG. 7 and the heating operation shown in FIG. The reason is that, for example, when changing from the setting angle at the time of cooling operation to the setting angle at the time of heating operation, for example, when viewed from the side, the central blade 170b intersects the left and right blades 170a, 170c, that is, operates. This is to avoid the tips of the blades from being aligned on a straight line. From the user's point of view, if it feels normal for the center blade 170b and the left and right blades 170a, 170c to be aligned at the tip of the blade, if the tips of the blades are not aligned at the final set angle, the user feels uncomfortable. This is because it is necessary to prevent.

  In this embodiment, by combining the shifting structure of the rotation axis of the up-and-down wind direction plate (non-colinear structure) shown in FIG. 3 with the control method of the expression (1) or (2), the user feels comfortable. The design of the movement of the plurality of blades can be improved (not lowered).

  In addition, when the air conditioner is not provided with a structure for shifting the rotation axis of the vertical airflow direction plate (non-colinear structure), the plurality of blades may be controlled only by the control unit 60.

  In FIG. 9, states C1, C2, C3, and C4 indicate states due to differences in opening degree of the upper vertical wind direction plate 170. State C1 is a closed state, and the positions of the left and right blades 170a, 170c and the central blade 170b are the same. Further, as the opening increases, the states C2, C3, and C4 are entered, and the step d (see FIG. 8) between the left and right blades 170a and 170c and the central blade 170b increases. The movable range is from state C1 to state C4.

  FIGS. 10A and 10B are explanatory views showing the movements of the up-and-down wind direction plate when starting and stopping, in which FIG. 10A is a diagram showing the movement during startup, and FIG. When the user presses the automatic button on the remote controller 40, the control unit 60 controls the up / down wind direction plate to the previous set position. At that time, it is preferable that the user does not feel uncomfortable. When the user presses the stop button of the remote controller 40, the control unit 60 controls the up / down wind direction plate from the set position of the operation state to the stop position. At that time, it is preferable that the user does not feel uncomfortable. Here, it demonstrates as what controls by said (1) Formula.

  10A, the control unit 60 (1) first starts to move the lower vertical wind direction plate 180, and (2) next starts to move the left and right blades 170a and 170c of the upper vertical wind direction plate 170. (3) Finally, the central blade 170b starts to move. If it does in this way, at the time of starting, the design nature of the movement of a plurality of wings can be raised without a sense of incongruity for a user.

  In the case of the stop in FIG. 10B, the control unit 60 (1) starts to move the central blade 170b first, (2) next starts to move the left and right blades 170a and 170c of the upper vertical wind direction plate 170, (3 ) Finally, the lower vertical wind direction plate 180 starts to move. In this way, the design of the movement of the plurality of blades can be improved without discomfort to the user even when the vehicle is stopped, as in the case of startup.

  Then, the control unit 60 (1) first stops the rotation of the central blade 170b, (2) next stops the rotation of the left and right blades 170a and 170c of the upper vertical wind direction plate 170, and (3) finally. The rotation of the lower vertical wind direction plate 180 is stopped.

  FIG. 12 is an explanatory diagram showing the movement of the upper vertical wind direction plate when it is periodically swung (hereinafter referred to as “swing”). The upper vertical wind direction plate 170 is swung in a state where the angles of the central blade 170b and the left and right blades 170a, 170c are shifted both during cooling and heating. The central blade 170b and the left and right blades 170a and 170c are swung with the same amplitude and cycle.

  As shown in FIG. 12, when the upper vertical wind direction plate 170 is rotated to the uppermost and lowermost positions in the swing range, the rotation of the upper vertical wind direction plate 170 may be stopped for a certain time.

  Further, the lower vertical wind direction plate 180 may be swung with the same amplitude and cycle as the upper vertical wind direction plate 170.

  According to the present embodiment, when starting the operation, the control unit 60 first starts to rotate the lower vertical wind direction plate 180, then starts to rotate the left and right blades 170a and 170c, and finally the center. The rotation of the blade 170b may be started.

  Further, when stopping the operation, the control unit 60 first starts to rotate the central blade 170b, then starts to rotate the left and right blades 170a and 170c, and finally rotates the lower vertical wind direction plate 180. It is good to start.

  The air conditioner A of the present embodiment includes an air outlet 109b that blows out an airflow, an upper airflow direction plate 170) that changes the airflow direction of the airflow that blows out from the air outlet in the vertical direction and is divided into a plurality of parts in the left-right direction. The center shaft 170b, which is at least one divided up-and-down air direction plate, is pivotally supported, and the left and right blades 170a, 170c, which are other up-and-down air direction plates, are rotated. The axis center of the pivot shaft that is supported is non-collinear. Thereby, a favorable impression can be given with respect to the attitude | position of the up-down wind direction board divided | segmented into plurality. In other words, even if the left and right blades 170a and 170c, which are the upper and lower wind direction plates on both sides, are slightly shifted, there is an effect that the space is not noticeable because the space is interposed between the central blades 170b. Further, the parts of the left and right blades 170a and 170c can be shared, and the structure of the housing of the left and right blades 170a and 170c can be unified.

40 Remote control (air conditioning control terminal)
50 Sensor unit 60 Control unit 99 Drain pan (dew pan, housing)
DESCRIPTION OF SYMBOLS 100 Indoor unit 101c Decorative frame 103 Blower fan 106 Front panel 107, 107a Air suction port 108, 108a Filter 109a Blowing air path 109b Air blowing port (blowout port)
109c Outlet air path upper surface 109d, 109e Side wall 110 Imaging unit 120 Near-infrared light source 130 Temperature detection unit 140 Foot monitor (display unit)
160 Left and right wind direction plate 170 Upper vertical wind direction plate (up and down wind direction plate)
170a, 170c Left and right blades 170b Center blades 171a, 171b, 171c Shaft centers 173a, 173b, 174a, 174b, 175a, 175b Shaft support arm portions 173c, 174c, 175d Connecting portions 173d, 174d, 174c Sliding bearing portion 180 Board (vertical wind direction board)
191 Left column 192 Right column 193a, 194a, 195b Shaft (drive shaft)
193b, 194b, 195a Shaft (non-drive shaft, driven shaft)
200 Outdoor unit A Air conditioner

Claims (11)

An upper and lower airflow direction plate that is arranged at the airflow outlet and that rotates in the vertical direction around the rotation axis to control the airflow direction of the airflow blown out of the air outlet in the vertical direction;
The vertical wind direction plate is divided into a plurality in the width direction of the outlet,
The axis center of the rotation axis of at least one of the divided vertical wind direction plates and the axis center of the rotation axis of the other vertical wind direction plate are non-collinear. Air conditioner. The axis center is shifted so that the space | interval of the up-and-down wind direction board seen from the side becomes wide, so that the said divided up-and-down wind direction board rotates below in a movable range. Air conditioner as described in. The distance in the horizontal direction between the axis of the rotation axis of at least one of the divided vertical wind direction plates and the axis of the rotation axis of the other vertical wind direction plate is greater than the distance in the vertical direction. The air conditioner according to claim 1. The vertical wind direction plate has a lower vertical wind direction plate and the divided upper vertical wind direction plate,
The upper vertical wind direction plate is divided into three in the left-right direction, and is composed of one central blade and two left and right blades,
The axis center of a rotation shaft that rotatably supports the central blade and an axis center of a rotation shaft that rotatably supports the left and right blades are on a non-collinear line. Air conditioner as described in. 5. The gap between the central blade and the left and right blades is a predetermined distance or more when viewed from a side when the upper vertical wind direction plate rotates to the lowest position in a rotation range. Air conditioner. The air conditioner according to claim 2, wherein an outer shape from the bottom surface of the indoor unit to the front panel is smoothly formed when the vertical wind direction plate is closed. An air outlet that blows out airflow;
Changing the wind direction of the airflow blown out from the blowout port in the vertical direction, and a vertical wind direction plate divided into a plurality of horizontal directions;
A control unit for controlling the vertical wind direction plate,
In operation, the control unit is configured such that an angle formed by at least one divided vertical wind direction plate and a vertical line when the vertical wind direction plate is viewed from the side is the other vertical wind direction plate and the vertical line. An air conditioner that is controlled to be larger than the angle formed by the air conditioner. The vertical wind direction plate has an upper vertical wind direction plate and a lower vertical wind direction plate, the upper vertical wind direction plate is divided into three in the left-right direction, and is composed of a central blade and left and right blades,
The control unit, during operation, performs control such that an angle formed between the central blade and the vertical line is larger than an angle formed between the left and right blades and the vertical line when the vertical wind direction plate is viewed from the side. The air conditioner according to claim 7. When starting the operation, the control unit first starts rotating the lower vertical wind direction plate, then starts rotating the left and right blades, and finally starts rotating the central blade. The air conditioner according to claim 7. When stopping the operation, the control unit first starts rotating the central blade, then starts rotating the left and right blades, and finally starts rotating the lower vertical wind direction plate. The air conditioner according to claim 7. The angle between the vertical line and at least one divided vertical wind direction plate in a side view of the vertical wind direction plate is shifted from the angle between the vertical line and the other vertical wind direction plate. With a swing operation mode that periodically swings the upper wind direction plate,
8. The air conditioner according to claim 7, wherein in the swing operation mode, the one divided up-down wind direction plate swings periodically with the same amplitude and period as the other divided up-down wind direction plate. Machine.

Images