JP2008128622A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a user-friendly air conditioner by providing wind direction setting corresponding to an operation mode, and matching actual wind directions in various operation modes with remote control display. <P>SOLUTION: A wind direction changing means is provided for changing a direction of wind blown out of a blow-out opening of an indoor unit in plural steps, and a control part is provided for controlling the wind direction changing means. In the control part, a step number of wind direction setting during cooling operation is reduced more than in heating operation, and during automatic operation, the step number of wind direction setting is further reduced than in the cooling operation. By this, an optimum wind direction setting can be realized by the various operation modes, and the remote control display can be matched with the actual wind direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner provided with wind direction changing means for changing the direction of wind blown from an air outlet of an indoor unit.

  In this type of air conditioner, the air direction can be set with a remote control or the like during operation. However, during cooling operation, the cooling air blown out from the indoor unit has a property of lowering the specific gravity. And it is comfortable to cool from the top. Therefore, in the indoor unit installed on the upper wall of the room, a narrow range of the wind direction is sufficient. In addition, if the wind direction is too low, there is a problem that condensation occurs near the air outlet.

  On the other hand, since the warm air blown out from the air outlet rises during heating operation, it is preferable to blow air toward the floor during heating operation, but the indoor unit installed on the upper wall of the room adjusts the air direction. Therefore, it is necessary to blow near the feet of the resident and a wide range of wind direction change is required.

  Thus, a preferable wind direction direction and a required wind direction change range differ with operation modes.

Patent document 1 relates to the wind direction adjustment of a bathroom heater / dryer. The wind direction adjusting plate according to various operation modes of a clothes drying mode for drying clothes, a heating mode for heating a bathroom, and a cool air mode for blowing air into the bathroom. It is described that the operation or the movement range of is set differently.
JP 2003-172524 A

  By the way, in the conventional air conditioner, the wind direction display and the number of wind direction switching steps at the time of wind direction setting by a remote control device (hereinafter referred to as a remote controller) are the same number with no difference depending on the operation mode, and the same wind direction on the remote control display. Settings are to be made.

  FIG. 9 shows a conventional remote control display for setting the wind direction in six steps. The number of blowing directions displayed on the remote controller is 6 in all, and in the cooling operation mode, there are 5 upper cooling stages and 5 lower heating stages.

  However, even if the central four stages are displayed on the remote controller, the wind direction changing condition is not distinguishable only by looking at the wind direction changing means in an actual air conditioner. In addition, since the same number of wind direction setting steps are provided in the cooling operation mode and the heating operation mode, and the remote control display as shown in FIG. 9 is performed, the remote control display portion becomes too dense, and the cooling operation mode and The difference in wind direction in the heating operation mode could not be displayed. For this reason, the actual wind direction with respect to the remote control display is described in an instruction manual or the like so as to eliminate the misunderstanding of the user.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an air conditioner that is capable of setting the wind direction according to the operation mode and that matches the actual wind direction in each operation mode with the remote control display and that is easy for the user to understand. .

  In order to achieve the above object, the present invention comprises a wind direction changing means for changing the flow of the wind blown from the outlet of the indoor unit in a plurality of stages, and a controller for controlling the wind direction changing means in accordance with the operation mode. The control unit is characterized in that the number of wind direction setting steps is different between the cooling operation mode and the heating operation mode.

  According to the above configuration, since the number of stages of the wind direction setting is different between the cooling operation mode and the heating operation mode, the direction of the wind blown from the outlet of the indoor unit installed on the upper wall of the room is the heating operation mode. In the cooling operation mode, the optimum number of wind direction setting stages can be selected.

  Specifically, when an indoor unit is installed in the upper part of the indoor wall, the cooling air blown out from the air outlet during cooling operation has a property that the specific gravity falls heavy, so the cooling air is blown to the upper part of the indoor space. It is comfortable to cool from the top. In addition, if the wind direction is too downward, the vicinity of the air outlet will condense, so that downward is not necessary.

  On the other hand, during heating operation, warm air has the property of rising, so it is preferable to blow air toward the floor.However, when the indoor unit is installed on the upper wall of the room, the wind direction is adjusted and the It is necessary to blow air, and the number of wind direction steps must be increased in a wide range. Therefore, the air direction change range in the cooling operation mode is narrower than that in the heating operation mode.

  Therefore, a comfortable air-conditioning environment can be obtained by setting the wind direction setting in the cooling operation mode to a smaller number of stages than in the heating operation mode.

  Further, when there is an automatic operation mode as the operation mode, the control unit varies the number of stages of wind direction setting depending on the cooling operation mode, the heating operation mode, and the automatic operation mode.

  Specifically, the airflow direction setting in the cooling operation mode is set to a smaller number of stages than the airflow setting in the heating operation mode, and the airflow direction setting in the automatic operation mode is set to a smaller number of stages than in the cooling operation mode.

  According to the above configuration, in the case of a one-way remote control system from the remote controller to the indoor unit, the selected operation mode of the indoor unit is not known. Therefore, in the automatic operation mode, the number of switching steps is further reduced and the automatic operation mode is reduced. Do not set a direct downward wind direction during cooling or an oblique upward wind direction during heating.

  The wind direction changing means includes a wind guide panel that can be switched between a covering posture and a wind guide posture covering the outlet of the indoor unit, and the wind guide panel guides the air blown from the outlet in an obliquely upward direction. The lower end of the wind guide panel is pivotally supported by the casing so as to be rotatable around the first rotation shaft, and the wind guide panel is divided into an upper extension panel and a lower cover panel, and the cover panel is A configuration that can be freely opened and closed around the second rotation axis can be exemplified.

  A remote controller for remotely controlling the indoor unit includes a display unit that can display a plurality of wind directions. This display unit can selectively display the wind direction display according to the number of wind direction steps set in accordance with the operation mode.

  According to the above configuration, the wind direction of the remote control display and the actual wind direction almost coincide with each other, and a remote controller that can be easily understood by the user can be provided.

  As described above, according to the present invention, the number of steps for switching the wind direction setting is minimized, and the cooling time is reduced rather than the heating time, thereby simplifying the selection of the wind direction. It is possible to provide an air conditioner that can substantially match the wind direction and is easily understood by the user.

  FIG. 1 is a sectional view showing a covering posture of a wind guide panel in an indoor unit of a separate type air conditioner of the present embodiment, and FIG. 2 is a perspective view of the same. FIG. 3 is a sectional view showing the open posture of the cover panel of the indoor unit, and FIG. 4 is a perspective view of the same. FIG. 5 is a sectional view showing a wind guide posture of the wind guide panel in the indoor unit, and FIG. 6 is a perspective view of the same. FIG. 7 is a control block diagram of the wind direction changing means, and FIG. 8 is a remote control display in various operation modes.

  As shown in FIGS. 1 and 2, the indoor unit 1 has an air inlet 3 formed on the upper surface of the casing 2, and an air outlet 4 formed on the lower front surface of the casing 2. An internal air passage extending from the suction port 3 to the air outlet 4 is formed inside the casing 2, and a heat exchanger 5 and an indoor fan 6 are disposed in the internal air passage.

  In the internal air passage, after the indoor air sucked from the suction port 3 on the upper surface of the casing passes through the filter, the heat is exchanged by the heat exchanger 5 and is discharged from the outlet 4 to the indoor side by the indoor fan 6 as cold air or warm air. It is what is done. In this internal air passage, an ion generator 45 is provided in the vicinity of the air outlet 4 so that positive and negative ions are released in the vicinity of the air outlet and the positive and negative sterilizing ions are released into the room together with the air to be blown out. Can do.

  The indoor fan 6 is a crossflow fan, and the axial direction of the rotation axis is the left-right direction. The indoor fan 6 is disposed closer to the outlet 4 than the heat exchanger 5 in the internal air passage.

  The heat exchanger 5 includes four heat exchangers 5a to 5d, and three of the heat exchangers 5a, 5b, and 5c are arranged so as to surround the indoor fan 6 from the front and rear and the upper side. On the back side of the heat exchanger 5c located on the rear side, another auxiliary heat exchanger 5d is arranged in parallel with the rear side heat exchanger 5c. Each heat exchanger 5 is formed in a rectangular parallelepiped shape from a heat medium tube and a large number of fins, and is connected to another heat exchanger at the ends of the heat medium tube to constitute a part of the refrigeration cycle. ing.

  In addition, a switching valve (not shown) is provided between the rear heat exchangers 5c and 5d and the front heat exchangers 5a and 5b, and the rear heat exchangers 5c and 5b are used as condensers during the dehumidifying operation. It is possible to reheat and dehumidify the air that has been used and has been dehumidified by the front heat exchangers 5a and 5b using the exhaust heat of the rear heat exchangers 5c and 5d and discharged from the outlet 4. ing.

  A filter 21 is provided for removing dust from indoor air sucked facing the suction port 3. In the filter 21, ultrafine fibers are knitted or woven into a net shape, and are arranged so as to face the suction port 3, whereby dust and dust can be removed from the sucked air.

  A cleaning device 22 for cleaning the filter 21 is provided. The filter cleaning device 22 is disposed in a space surrounded by the upper surface front side of the casing 2, the front surface upper side, and the front heat exchangers 5a and 5b. The filter cleaning device 22 includes a movement guide path 24 that is curved in a U shape in a side view for moving the filter 21 in the casing 2, and a dust removal box that sucks and removes dust adhering to the filter facing the movement guide path 24. 25 and drive means 26 for moving the filter 21 along the movement guide path 24.

  The movement guide path 24 is a path that guides the front end portion of the filter 21 disposed facing the suction port 3 in a U shape at the front portion of the casing 2 to the heat exchanger 5 side. The movement guide path 24 can be inserted into the left and right ends of the filter 4.

  The dust removal box 25 is disposed in the upper passage portion of the U-shaped movement guide path 24. The dust removal box 25 is arranged so that the front side box 27 having a semi-cylindrical cross section and the back side box 28 having a semi-cylindrical cross section face each other so that the openings of each other face each other, and the filter 21 is allowed to pass therebetween. . Suction fans (not shown) are provided at the ends of the front and back boxes 27 and 28, and dust is attached to the filter 21 by flowing air in a direction substantially parallel to the filter 21 (left and right direction). Remove. At this time, a rotating brush may be provided in the dust removal box to scrape off dust adhering to the filter 21.

  The drive means 26 includes a motor 30 and a gear mechanism 31 connected to the motor 30. The final pinion gear is engaged with a rack portion formed at the left and right end portions of the filter 21, and the motor 21 is driven so that the filter 21 reciprocates along the movement guide path 24. In order to smoothly move the filter 21, a rubber roller that presses a part of the filter 21 may be provided.

  In addition, a filter insertion port 33 into which the filter 21 is detachably inserted is formed in the upper part of the front surface of the casing 2. The filter insertion port 33 communicates with the curved portion of the U-shaped movement guide path 24 so that the filter 21 can be detachably inserted into the movement guide path 24 from the filter insertion port 33. The filter insertion port 33 is a rectangular opening formed on the upper side of the air outlet 4, and is provided with a pair of left and right openings according to the pair of left and right filters. The front surface portion including the filter insertion port 33 and above the air outlet 4 of the casing 2 is covered with a front panel 44. The front panel 44 is detachably attached to the casing 2.

  The blower outlet 4 is provided with a wind direction changing device 36 including a vertical louver 36a and a horizontal louver 36b so that the direction of the wind blown from the blower outlet 4 can be changed. The wind direction changing device 36 includes a louver drive unit 37 (see FIG. 7) having a known structure including a stepping motor and a transmission gear mechanism.

  In the present embodiment, a wind guide panel 7 that can be switched between a covering posture and a wind guiding posture is provided on the front surface of the casing 2 separately from the wind direction changing device 36. The wind guide panel 7 guides the air blown from the outlet 4 in the obliquely upward direction, and the lower end of the wind guide panel 7 is pivotally supported on the casing 2 so as to be rotatable around the first rotation shaft 10. Has been.

  The wind guide panel 7 is rotated around the first rotation shaft 10, and is arranged in a substantially horizontal direction from the blower outlet 4 to guide the air blown from the blower outlet 4 obliquely upward, and the casing 2. It is arrange | positioned along the front surface of this, It can be switched to the cover attitude | position which covers at least the lower half of the front surface of the casing containing the blower outlet 4. FIG.

  The wind guide posture of the wind guide panel 7 is mainly used when the wind blown from the outlet 4 during the cooling operation is led obliquely upward along the wind guide panel 7 and led to the air far away along the indoor ceiling. Is done.

  Moreover, the wind guide panel 7 is installed so as to cover the air outlet 4 and its peripheral portion from the lower front surface of the casing 2 to the front surface in the covering posture. That is, the wind guide panel 7 is formed larger than the air outlet 4 and has a size covering almost the entire front surface of the casing 2.

  Further, the wind guide panel 7 is divided into a cover panel 8 that mainly covers the outlet 4 and an extension panel 9 that is provided continuously at the tip of the cover panel 8. The cover panel 8 is supported by the extension panel 9 so as to be openable and closable around the second rotation shaft 11. The cover panel 8 has a closed posture in which the extension panel 9 is covered with the front surface of the casing 2 and is closed around the outlet 4 by turning around the second turning shaft 11. It is possible to switch to an open posture that opens in the vertical direction. The open posture of the cover panel 8 is mainly used when the wind blown from the outlet 4 is guided downward during heating operation or rapid cooling operation in which cold air is to be blown locally. As shown in FIG. 3, the cover panel 8 can be rotated around the second rotation shaft 11 to take the posture of “obliquely downward”, “downwardly”, and “directly downward”.

  Further, in the wind guide panel 7, the cover panel 8 is formed in a concave curved shape in a side view so that the wind can be continuously guided to the far side of the curved passage wall on the back side of the air outlet 4. The extension panel 9 is formed in a convex curved shape on the inside so that the wind guided from the cover panel 8 is sucked into the suction port 3 on the upper surface of the casing and does not cause a short circuit.

  Further, the cover panel 8 and the extension panel 9 are formed of heat-insulating polyurethane foam on the inside in order to prevent condensation on the front side of the air guide panel 7 due to contact between the cool air guided from the air outlet 4 and the indoor air. The

  Next, the rotation mechanism of the air guide panel 7 will be described in detail. The extension panel 9 is provided with a pair of left and right legs 9 b vertically at the left and right outer positions of the air outlet 4. The lower end portion of the leg portion 9 b is pivotally supported by the casing 2 so as to be rotatable around the first rotation shaft 10.

  In addition, turning arms 16 are attached to the left and right ends of the extension panel 9 constituting the air guide panel 7. A rack 16 a that is curved in an arc shape around the first rotation shaft 10 is formed on the rotation arm 16. The rack 16a meshes with a pinion (not shown) installed in the casing 2, and the extension panel 9 is moved by the pinion driving a wind guide panel rotating portion 38 (see FIG. 7) formed of a stepping motor. It rotates around the rotation axis 10a. When the air guide panel 7 opens the air outlet 4, the cover panel 8 rotates integrally with the extension panel 9 around the rotation axis 10 a while maintaining the posture of closing the ventilation portion 9 a. As a result, the extension panel 9 can be freely switched and switched between a cover posture arranged along the casing 2 and a wind guide posture positioned obliquely upward.

  The leg portion 9 b is plate-shaped and is formed in a curved shape along the casing 2. In addition, a ventilation portion 9a having substantially the same size as the air outlet 4 is formed between the pair of leg portions 9b.

  On the other hand, the cover panel 8 has a lateral width that is substantially the same as the lateral width of the casing 2. Therefore, it arrange | positions so that the leg part 9b of the extension panel 9 may be covered. The upper end of the cover panel 8 is attached to be rotatable about an axis 11 a of a second rotation shaft 11 provided on the extension panel 9.

  More specifically, the second rotating shaft 11 is formed in the left and right ends of the cover panel 8 in parallel with the left and right direction of the casing 2. The second rotation shaft 11 is rotatably supported by a bearing portion formed on the leg portion 9 b of the extension panel 9. This bearing portion is disposed at a position higher than the upper end of the air outlet 4.

  In addition, the cover panel 8 is provided with a fan-shaped gear 15 around the second rotation shaft 11. The fan-shaped gear 15 meshes with a drive gear installed in the casing in a covering posture in which the extension panel 9 approaches the casing 2. Then, due to the rotational drive operation of the drive gear, the fan-shaped gear 15 meshing with the drive gear 15 rotates, and the cover panel 8 can be rotated between “obliquely downward”, “downwardly”, “directly downward” and the closed posture. ing.

  This drive gear is connected to a motor shaft of a stepping motor different from the stepping motor that rotates the wind guide panel around the first rotation shaft 10. This stepping motor constitutes a cover panel rotating part 39.

  As above-mentioned, the wind direction which blows off from the blower outlet 4 is changed by rotation operation of the wind guide panel 7 and the cover panel 8. FIG. The wind guide panel rotating unit 38 and the cover panel rotating unit 39 constitute a wind direction changing unit. Note that a wind direction changing device 36 may be added as the wind direction changing means.

  The wind guide panel 7 is switched by the wind guide panel rotating unit 38 to the wind guide posture that rotates around the first rotation shaft 10 and blows the blowing direction obliquely upward from the substantially horizontal direction. Further, the cover panel 8 can be rotated around the second rotation shaft 11 by the cover panel rotation unit 39 and the blowing direction can be changed to “obliquely downward”, “downwardly”, and “directly downward”. As shown in FIG. 3, the “obliquely down” state is a state where the cover panel 8 is most opened. The “directly under” state is a state in which the cover panel 8 is rotated to the vertically lower side. The “downward” state is an intermediate state between the “obliquely downward” state and the “directly downward” state of the cover panel 8. The direction of the wind blown out from the outlet 4 can also be achieved by cooperation with the changing operation of the rotation angle of the lateral louver 36b.

  In the cover panel 8, a seal portion 12 is formed on the opposite side across the rotation axis 11a. Opposite to the seal portion 12, a groove portion 19 is formed in the casing left-right width direction A at a position above the outlet 4 of the casing. The groove portion 19 is formed to allow the seal portion 12 to rotate in a direction approaching the casing 2 when the cover panel 8 is in the open posture with the lower end opened with respect to the extension panel 9. Then, the lower wall portion of the groove portion 19 comes into contact with the seal portion 12.

  The extension panel 9 is provided with a sealing material 17 that seals a gap between the seal portion 12 and the extension panel 9. A sealing material 18 that seals a gap between the air guide panel 7 and the casing 2 is disposed at the lower edge of the air outlet 4 of the casing 2.

  In addition, an operation display unit 40 and a first receiving unit 41 of the remote controller are arranged side by side on the upper front surface of the casing 2. The arrangement of the operation display unit 40 and the first receiving unit 41 is in the covering posture of the wind guide panel 7 and is located above the upper end of the wind guide panel 7. In addition to the first receiver 41, a second receiver 42 is disposed on the lower surface of the casing 2 at a position away from the air outlet 4 and the air guide panel 7.

  The operation display unit 40 displays the operation status of the sterilization ions and the degree of air pollution in the room by the LED. It also displays the set temperature and outdoor temperature. The first receiver 41 and the second receiver 42 receive an infrared signal from the remote controller 50.

  The remote controller 50 outputs a remote control signal using an infrared signal. FIG. 7 is a wind direction control block diagram showing the relationship between the remote controller and the wind direction changing means of the indoor unit 1. As shown in the figure, the remote controller 50 is provided with an operation mode switch 51 and a wind direction changeover switch 52 in its operation section. The operation mode switch 51 is provided with “cooling”, “heating”, “automatic”, and “dehumidification” operation mode switches.

  The wind direction changeover switch 52 switches the wind direction setting sequentially every time the switch is pressed depending on each operation mode. In the cooling / dehumidifying operation mode, each time the switch is pressed, the wind direction setting is switched to “automatic”, “upwardly diagonally”, and “downwardly diagonally”.

  In the heating operation mode, every time the switch is pressed, the setting is sequentially switched to four wind direction settings of “automatic”, “obliquely downward”, “downwardly”, and “directly downward”. In the automatic operation mode, every time the switch is pressed, the setting is sequentially switched to two types of wind direction setting, “automatic” and “obliquely”.

  Operation signals from the operation mode switch 51 and the wind direction selector switch 52 are input to the remote controller side control unit 53 formed of a microcomputer, and after performing predetermined arithmetic processing, the control unit (not shown) on the indoor unit 1 side is operated. Then, the wind direction changing means 37, 38, 39 are controlled.

  In addition, the remote controller 50 is provided with a display unit 54 for displaying the operation state, and the set wind direction and temperature are displayed. FIG. 8 shows a remote control display in each operation mode. FIG. 8A shows a remote control display during the cooling / dehumidifying operation. There are three wind direction settings: "Auto", "Up diagonally" and "Down diagonal". FIG.8 (b) shows the remote control display at the time of heating operation. There are four wind direction settings: “automatic”, “up diagonally”, “down diagonally”, and “directly below”. FIG. 8C shows a remote control display during automatic operation. Two wind direction settings are available: "Automatic" and "Slanting down".

  In the above configuration, when the operation is stopped, the wind guide panel 7 is disposed on the substantially entire surface of the casing 2 along the front surface of the casing 2. When the cooling mode or the dehumidifying operation mode is selected by the operation mode switch 51, the wind direction setting of the remote controller 50 is “automatic”, “upwardly diagonally”, and “downwardly diagonally”. The wind direction setting is displayed in sequence.

  When the heating mode is selected by the operation mode switch 51, the wind direction setting of the remote controller 50 is "automatic", "down diagonally", "downward", and "downward", and every time the wind direction changeover switch 52 is pressed, there are four ways. The wind direction settings are switched and displayed sequentially.

  When the automatic operation mode is selected by the operation mode switch 51, the wind direction setting of the remote controller 50 becomes "automatic" and "down diagonally", and each time the wind direction changeover switch 52 is pressed, the two wind direction settings are sequentially switched and displayed. Is done.

  When the air direction “automatic” is selected during the cooling operation, immediately after the operation starts, the cover panel 8 is opened and rotated as shown in FIG. When about 10 minutes have passed or when the room temperature reaches the set temperature, the cover panel 8 is returned to the original closed position, and then the wind guide panel 7 is covered around the first rotating shaft 10 and the wind is guided from the attitude. Switch to a posture and blow cool air along the ceiling with the wind direction diagonally upward. As a result, it is possible to obtain a comfortable airflow that does not feel a quick cool air feeling at the beginning of operation and a cool air after stabilization.

  In the cooling operation mode, if you want to get cool air continuously toward the living space from the beginning of operation, select the wind direction setting “slanting down”, if you do not want to feel cool air, select “slanting up” it can.

  When the air direction “automatic” is selected during the heating operation, the air is blown with a slight breeze so that the cool air is not blown toward the resident until the temperature of the indoor heat exchanger 5 rises. For example, the cover panel 8 is slightly rotated around the second rotation axis 11. When the temperature of the heat exchanger rises slightly, the cover panel 8 is rotated around the second rotation shaft 11 so that the wind direction is directed downward.

  At this stage, when the air is blown toward the person, there is still a feeling of cold wind, so the floor surface in the vicinity of the indoor unit 1 is warmed with the wind direction facing downward. When the temperature of the heat exchanger reaches a predetermined temperature and rises to such an extent that it does not feel a cold wind even if it is blown toward a person, first, the cover panel 8 is moved to the second position so as to warm the floor of the entire room. It further rotates around the shaft 11 in the opening direction, changes the wind direction obliquely downward, and blows with strong wind. When the room temperature reaches the set temperature, this time, the cover panel 8 is rotated in the closing direction around the second rotation shaft 11, and the air conditioning is performed so that the occupant does not feel the airflow with the wind direction “directly below”.

  When a resident who is away from the indoor unit 1 wants to obtain warm air nearby, the wind direction setting can be selected from “obliquely downward” and “downward” depending on the positional relationship between the indoor unit 1 and the person.

  In the automatic operation mode, when the wind direction is “automatic”, the airflow direction control of the cooling air direction “automatic” or the airflow direction “automatic” of the heating is performed according to the operation mode selected by the indoor unit according to the outside air temperature and the room temperature. And when it is desired to change the wind direction, the wind direction can be changed to “obliquely downward”.

  As described above, the number of blowing directions that are rarely used in practice has been reduced so that the display on the remote control and the actual wind direction are clear, so the remote control display and the actual display It can be prevented from being erroneously recognized due to the relationship. In addition, the number of air direction setting steps during cooling operation is reduced compared to that during heating operation, and the number of air direction setting steps during automatic operation is further reduced than during cooling operation. Setting can be realized.

  Note that the present invention is not limited to the above-described embodiment, and it is needless to say that many modifications and changes can be made within the scope of the present invention.

Sectional drawing of the indoor unit of the air conditioner which shows 1st Embodiment of this invention The perspective view which shows the external appearance of the indoor unit of FIG. Sectional drawing which shows the state which the cover body of the indoor unit in FIG. 1 rotated The perspective view which shows the external appearance of the indoor unit of FIG. Sectional drawing which shows the state which the wind guide panel of the indoor unit in FIG. 1 rotated The perspective view which shows the external appearance of the indoor unit of FIG. Control block diagram for controlling wind direction changing means (A) (b) (c) is a figure which shows the remote control display in various operation modes. The figure which shows the remote control display for the conventional wind direction 5 step | paragraph setting

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Casing 3 Inlet 4 Outlet 5 Heat exchanger 6 Indoor fan 7 Air guide panel 8 Cover panel 9 Extension panel 9a Ventilation part 9b Leg part 10 1st rotating shaft 11 2nd rotating shaft 21 Filter 22 Filter Cleaning device 24 Movement guide path 25 Dust removal box 26 Drive means 27 Front side box 28 Back side box 30 Motor 31 Gear mechanism 37 Louver drive part 38 Air guide panel rotation part 39 Cover panel drive part 50 Remote control (remote control device)
51 Operation mode switch 52 Air direction selector switch 54 Remote control display

Claims (6)

Wind direction changing means for changing the flow of the wind blown out from the outlet of the indoor unit in a plurality of stages, and a control unit for controlling the wind direction changing means according to the operation mode, the control unit comprising the cooling operation mode and the heating mode An air conditioner characterized in that the number of stages of wind direction setting differs from the operation mode. 2. The air conditioner according to claim 1, wherein the control unit sets the number of air direction setting steps in the cooling operation mode to be smaller than that in the heating operation mode. Wind direction changing means for changing the flow of the wind blown out from the outlet of the indoor unit in a plurality of stages, and a control unit for controlling the wind direction changing means according to the operation mode, the control unit comprising a cooling operation mode, a heating mode An air conditioner characterized in that the number of wind direction setting steps differs between the operation mode and the automatic operation mode. The control unit is characterized in that the number of steps for setting the air direction in the cooling operation mode is set to be smaller than that in the heating operation mode, and further, the number of steps in the air direction setting in the automatic operation mode is set to be less than that in the cooling operation mode. 3. The air conditioner according to 3. The wind direction changing means includes a wind guide panel that can be switched between a covering posture and a wind guide posture covering the air outlet of the indoor unit, and the wind guide panel guides the air blown from the air outlet in an obliquely upward direction. The lower end of the wind panel is pivotally supported by the casing so as to be rotatable about the first rotation axis, the wind guide panel is divided into an upper extension panel and a lower cover panel, and the cover panel is 2. The air conditioner according to claim 1, wherein the air conditioner can be freely opened and closed around two rotation axes. A remote control device for remotely controlling the indoor unit is provided, and the remote control device includes a display unit capable of displaying a plurality of wind directions, and the display unit is adapted to the number of wind direction steps set according to the operation mode. The air conditioner according to claim 1, wherein the air conditioner is selectively displayed from a plurality of wind direction displays.

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