JP4386903B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner that harmonizes and sends out sucked air.

  FIG. 17 is a schematic side sectional view showing an indoor unit of a conventional air conditioner. The indoor unit 1 of the air conditioner has a main body held by a cabinet 2, and a front panel 3 provided with suction ports 4a and 4c on the upper surface side and the front surface side is detachably attached to the cabinet 2. . The cabinet 2 is provided with a claw portion (not shown) on the rear side surface, and is supported by fitting the claw portion to a mounting plate attached to an indoor wall.

  A substantially rectangular air outlet 5 extending in the width direction of the indoor unit 1 is formed in the gap between the lower end of the front panel 3 and the lower end of the cabinet 2. Inside the indoor unit 1, a ventilation path 6 that communicates from the inlets 4 a and 4 c to the outlet 5 is formed. A blower fan 7 that sends out air is disposed in the blower path 6. As the blower fan 7, for example, a cross flow fan or the like can be used.

  An air filter 8 that collects and removes dust contained in the air sucked from the suction ports 4 a and 4 c is provided at a position facing the front panel 3. An indoor heat exchanger 9 is disposed between the blower fan 7 and the air filter 8 in the blower path 6. The indoor heat exchanger 9 is connected to a compressor (not shown), and the refrigeration cycle is operated by driving the compressor. The indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling by operating the refrigeration cycle. During heating, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature.

  A drain pan 10 that collects condensation that has fallen from the indoor heat exchanger 9 during cooling or dehumidification is provided at the lower part of the front and rear of the indoor heat exchanger 9. In the vicinity of the air outlet 5 in the air blowing path 6, lateral louvers 11 a and 11 b that face the outside and can change the vertical air blowing angle from substantially horizontal to downward are provided. A vertical louver 12 capable of changing the blowing angle in the left-right direction is provided on the back side of the horizontal louvers 11a, 11b.

  In the air conditioner having the above configuration, when the operation of the air conditioner is started, the blower fan 7 is rotationally driven, the refrigerant from the outdoor unit (not shown) flows to the indoor heat exchanger 9, and the refrigeration cycle is operated. Air is sucked into the indoor unit 1 from the suction ports 4 a and 4 c, and dust contained in the air is removed by the air filter 8.

  The air taken into the indoor unit 1 exchanges heat with the indoor heat exchanger 9, and is cooled or heated. Then, the conditioned air is sent into the room from the blowout port 5 downward through the air flow path 6 with the direction restricted in the left-right direction and the up-down direction by the vertical louver 12 and the horizontal louvers 11a and 11b.

  Moreover, it is necessary to circulate indoor air immediately after the start of the operation of the air conditioner. For this reason, the air exchanged by the indoor heat exchanger 9 by increasing the rotational speed of the blower fan 7 is sent out from the outlet 5 vigorously. When the temperature difference between the room temperature and the set temperature becomes small, the air flow rate gradually decreases due to the adjustment of the blower fan 7. As a result, the interior of the room is finely formed with a uniform temperature distribution.

  However, according to the above-described conventional air conditioner, the air conditioner is usually installed at a position higher than the height of the user and is blown from the outlet 5 in a substantially horizontal direction to a downward direction. For this reason, if ventilation continues in the state which reached preset temperature vicinity, a cold wind and a warm wind will always hit a user. Therefore, there has been a problem that makes the user uncomfortable. In addition, there has been a problem that the body temperature of the user is locally lowered during the dehumidifying operation or the cooling operation, which is harmful to health.

  In order to solve these problems, an air conditioner capable of sending conditioned air upward from the air outlet has been researched and developed. FIG. 18 is a schematic side sectional view showing the indoor unit of this air conditioner, and the same reference numerals are given to the same parts as those in FIG. The blower outlet 5 of the indoor unit 1 has a first opening 5a and a second opening 5b. The first opening 5 a is arranged facing the lower end of the air blowing path 6. The second opening 5b communicates with the air blowing path 6 by a branch passage 13 that is inclined upward and branches from the air blowing path 6. At both ends of the branch passage 13, there are provided rotating plates 14, 15 that are pivotally supported on the front panel 3 by rotating shafts 14a, 15a.

  When the operation of the air conditioner is started, the air taken into the indoor unit 1 from the suction ports 4a and 4c exchanges heat with the indoor heat exchanger 9, and is cooled or heated. Then, the direction is restricted in the left and right and up and down directions by the vertical louver 12 and the horizontal louvers 11a and 11b through the air blowing path 6, and as indicated by an arrow A1, the first opening 5a is directed substantially horizontally or downward. It is sent out indoors.

  Moreover, it is necessary to circulate indoor air immediately after the start of the operation of the air conditioner. For this reason, the air exchanged by the indoor heat exchanger 9 by increasing the rotational speed of the blower fan 7 is sent out from the outlet 5 vigorously. When it is detected by a temperature sensor (not shown) that the temperature difference between the room temperature and the set temperature is small, the amount of air blown gradually decreases due to adjustment of the blower fan 7.

  And as shown in FIG. 19, the horizontal louvers 11a and 11b rotate and the 1st opening part 5a is obstruct | occluded. At the same time, the rotating plates 14 and 15 are rotated to open the second opening 5b and the branch portion of the branch passage 13. As a result, the conditioned air flowing through the blowing path 6 flows through the branch path 13 and is sent out from the second opening 5b, and is guided upward as indicated by the arrow A2.

  Therefore, the user is not always exposed to cold wind or warm wind, and the user's discomfort can be prevented and the comfort can be improved. Furthermore, health safety can be improved without locally lowering the user's body temperature during cooling.

  However, according to the above air conditioner, the conditioned air sent upward from the second opening 5b is taken into the indoor unit 1 from the suction port 4c provided in the front panel 3 as shown by the arrow A3, A so-called short circuit occurs. For this reason, there existed a problem of reducing the cooling efficiency or heating efficiency of an air conditioner.

  Furthermore, since the cold air sent out from the second opening 5b immediately passes through the indoor heat exchanger 9 during the cooling operation or the dehumidifying operation, the refrigerant in the indoor heat exchanger 9 cannot absorb sufficient heat. For this reason, the temperature of the indoor heat exchanger 9 is lowered as compared with the normal operation, and an increase in dew condensation and freezing of dew condensation water occur.

  When the cooling operation or the dehumidifying operation is continued, ice grows on the surface of the indoor heat exchanger 9, and the ice at a position away from the indoor heat exchanger 9 can be partially melted without being maintained at a low temperature. When the melted water droplets are dropped onto the blower fan 7, they are discharged into the room from the second opening 5b. Moreover, the temperature of the indoor heat exchanger 9 decreases, the surface of the cabinet 2 and the front panel 3 is condensed, and condensed water is dripped. As a result, there was a problem that the room was flooded. Furthermore, there is a problem that the cabinet 2 and the front panel 3 are damaged or deformed by the pressing force of the ice grown on the surface of the indoor heat exchanger 9.

  An object of the present invention is to provide an air conditioner capable of improving comfort and health safety and improving cooling efficiency or heating efficiency. It is another object of the present invention to provide an air conditioner that can prevent a short circuit and prevent indoor flooding due to condensation and damage or deformation of the air conditioner.

In order to achieve the above object, the present invention is an air conditioner that is attached to the upper part of a wall surface in an indoor space, and that air taken in from a suction port is harmonized and sent from a lower outlet to a lower outlet through a passage. In the machine, the suction port is formed by an opening provided in the upper surface portion of the air conditioner, and an opening / closing mechanism that opens and closes the opening, and a rotating plate that is provided in the upper part of the outlet and opens and closes the upper part of the outlet And a wind direction plate that is provided at a lower portion of the air outlet and changes a wind direction, and a shielding portion that shields a front portion of the air conditioner , wherein the passage is inclined downward as it goes forward. An upper wall and a lower wall; and a second upper wall inclined continuously upward in front of the first upper wall toward the front in the vicinity of the outlet, and the opening / closing mechanism is opened to The upper part of the outlet is closed by a moving plate A first air blowing mode in which a lower part of the air outlet is opened by a wind direction plate and conditioned air is sent downward from the lower part of the air outlet, and an air flow flowing between the first upper wall and the lower wall The front of the traveling direction is closed by the wind direction plate, the upper part of the outlet is opened by the rotating plate, and conditioned air is sent upward from the upper part of the outlet to pass the front of the shielding part. 2 air blowing modes are provided .

In the air conditioner configured as described above, the present invention is characterized in that the first air blowing mode is switched to the second air blowing mode at a predetermined time. According to this configuration, when the air conditioner is operated, the air taken in from the suction port provided on the upper surface of the air conditioner is harmonized and sent downward from the blowout port. Sent out. The conditioned air sent upward flows through the room without being taken into the air conditioner from the front side by the shielding portion. In addition, the opening / closing mechanism restricts the intake of conditioned air from the suction port provided in the upper surface portion into the air conditioner. The front part of the air conditioner includes an inclined part and a curved part visible from the front, and the upper part of the air conditioner includes an inclined part and a curved part visible from the upper surface.

In the air conditioner having the above-described configuration, the present invention further includes forming the suction port in a side portion of the air conditioner and closing the opening / closing mechanism when the conditioned air is sent upward from the air outlet. the it is with the features.

According to this configuration, when the opening / closing mechanism is closed, the air taken into the air conditioner by the suction port provided in the side surface portion is sent out from the air outlet. Further, when the conditioned air is sent upward from the air outlet, the intake of the conditioned air from the suction port provided in the upper surface portion of the air conditioner is prevented.

  In the air conditioner having the above-described configuration, the present invention is characterized in that a heat insulating material is provided in the shielding portion.

In the air conditioner having each of the above-described configurations, the air outlet includes a first opening that guides air in a substantially horizontal direction to a downward direction, and a second opening that guides air upward. Yes.

  According to the present invention, it is possible to shield the front side of the air conditioner that switches from the outlet to the lower side and to the upper side, and to open and close the suction port provided on the upper side. In addition to improving safety and health safety, it is possible to prevent short circuits and improve cooling efficiency or heating efficiency.

  Further, by preventing the short circuit, it is possible to prevent an increase in condensation and freezing and growth of condensed water during cooling operation and dehumidifying operation. Therefore, it is possible to prevent the water from being released into the room by the condensed water or the water that has been frozen, and the deformation and breakage of the air conditioner due to the pressing force of the grown ice can be prevented.

  Further, according to the present invention, by providing a part of the suction port on the side surface portion of the air conditioner, it is possible to prevent a decrease in operating efficiency and to increase the rotational speed of the blower fan in order to secure a sufficient air volume. Therefore, an increase in noise can be prevented.

  In addition, according to the present invention, when the conditioned air is sent upward from the air outlet, the suction port on the upper surface is closed by the opening / closing mechanism, so that a short circuit can be further prevented.

  Further, according to the present invention, it is possible to prevent dew condensation due to a temperature difference between both surfaces of the shielding part by providing a heat insulating material on the shielding part.

  Embodiments of the present invention will be described below with reference to the drawings. For convenience of explanation, the same reference numerals are given to the same parts as those in FIGS. 18 and 19 of the conventional example. 1 and 2 are a schematic side sectional view and perspective view showing an indoor unit of an air conditioner according to the first embodiment. The indoor unit 1 of the air conditioner has a main body held by a cabinet 2. A front panel 3 is detachably attached to the front side of the cabinet 2 so as to cover the main body.

  A plurality of suction ports 4 a are provided in the upper surface portion 2 a of the cabinet 2, and a rotating plate 19 that opens and closes each suction port 4 a is pivotally supported by the cabinet 2. A front panel 3 whose front side is shielded is detachably attached to the front of the cabinet 2. A suction port 4 e is formed on the side surface side of the indoor unit 1 by a gap between the side surface portion 2 b of the cabinet 2 and the front panel 3. The suction port 4e communicates with a blower path 6 described later, and the air taken in from the suction port 4e merges with the air from the suction port 4a on the front side of the air filter 8.

  The cabinet 2 is provided with a claw portion (not shown) on the rear side surface, and is supported by fitting the claw portion to a mounting plate attached to an indoor wall. In the gap between the lower end portion of the front panel 3 and the lower end portion of the cabinet 2, an air outlet 5 including first and second openings 5 a and 5 b that are substantially rectangular extending in the width direction of the indoor unit 1 is formed.

  Inside the indoor unit 1, a blower path 6 that communicates from the suction ports 4 a and 4 e to the blowout port 5 is formed. A blower fan 7 that sends out air is disposed in front of the cabinet 2 in the blower path 6. As the blower fan 7, for example, a cross flow fan or the like can be used.

  An air filter 8 that collects and removes dust contained in the air sucked from the suction ports 4a and 4e is provided at a position facing the front panel 3. An indoor heat exchanger 9 is disposed between the blower fan 7 and the air filter 8 in the blower path 6. A space of a predetermined interval is provided between the front panel 3 and the indoor heat exchanger 9, and air taken in from the suction ports 4a and 4e contacts the indoor heat exchanger 9 over a wide area through the space. It is supposed to be.

  The indoor heat exchanger 9 is connected to a compressor (not shown), and the refrigeration cycle is operated by driving the compressor. By operating the refrigeration cycle, the indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling. During heating, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature. A temperature sensor (not shown) for detecting the temperature of the sucked air is provided between the indoor heat exchanger 9 and the air filter 8.

  A drain pan 10 that collects condensation that has fallen from the indoor heat exchanger 9 during cooling or dehumidification is provided at the lower part of the front and rear of the indoor heat exchanger 9. The front drain pan 10 is attached to the front panel 3, and the rear drain pan 10 is formed integrally with the cabinet 2. In the vicinity of the first opening 5a of the blowout port 5 in the blower path 6, lateral louvers 11a and 11b that face the outside and can change the blowout angle in the vertical direction from substantially horizontal to downward are provided. A vertical louver 12 capable of changing the blowing angle in the left-right direction is provided on the back side of the horizontal louvers 11a, 11b.

  The second opening 5b communicates with the air blowing path 6 by a branch passage 13 that is inclined upward and branches from the air blowing path 6. Rotating plates 14 and 15 pivotally supported on the front panel 3 by rotating shafts 14 a and 15 a are provided at both ends of the branch passage 13. When the branch passage 13 is closed by the rotating plate 15, the rotating plate 15 forms the inner wall surface of the blower path 6 and guides the airflow. Thereby, the increase in the distribution resistance of the air which distribute | circulates the ventilation path | route 6 is prevented.

  In the air conditioner having the above configuration, when the operation of the air conditioner is started, the blower fan 7 is rotationally driven, the refrigerant from the outdoor unit (not shown) flows to the indoor heat exchanger 9, and the refrigeration cycle is operated. Moreover, the suction port 4a is opened by the rotating plate 19, and air is sucked into the indoor unit 1 from the suction ports 4a and 4e. Dust contained in the sucked air is removed by the air filter 8.

  The air taken into the indoor unit 1 exchanges heat with the indoor heat exchanger 9, and is cooled or heated. Then, the direction is regulated in the left and right and up and down directions by the vertical louver 12 and the horizontal louvers 11a and 11b through the air blowing path 6, and the air is sent from the blowout port 5 into the room in a substantially horizontal direction or in a downward direction as indicated by an arrow A1. Is done.

  Moreover, it is necessary to circulate indoor air immediately after the start of the operation of the air conditioner. For this reason, the air exchanged by the indoor heat exchanger 9 by increasing the rotational speed of the blower fan 7 is sent out from the outlet 5 vigorously. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature has become small, the amount of air blown gradually decreases by the control of the blower fan 7.

  Then, as shown in FIG. 3, the horizontal louvers 11 a and 11 b rotate to close the first opening 5 a, and the rotation plates 14 and 15 rotate to branch the second opening 5 b and the branch passage 13. Part is released. At the same time, the rotation plate 19 rotates and the suction port 4a is closed. Thereby, the air taken in from the suction port 4e flows through the blower passage 6 and the branch passage 13 and is sent out from the second opening 5b, and is guided upward as indicated by an arrow A2 in FIG. Therefore, the user is not always exposed to cold wind or warm wind, and the user's discomfort can be prevented and the comfort can be improved. Furthermore, health safety can be improved without locally lowering the user's body temperature during cooling.

  In addition, the conditioned air sent upward from the second opening 5b passes through the front surface of the front panel 3. However, since the front surface side of the front panel 3 is shielded, entry from the front surface side is prevented. Moreover, since the inlet 4a is obstruct | occluded by the rotation board 19, the penetration | invasion from upper part is prevented. Thereby, generation | occurrence | production of a short circuit can be reduced significantly.

  Therefore, it is possible to prevent the cooling efficiency or heating efficiency of the air conditioner from being lowered. Moreover, since no short circuit occurs, it is possible to prevent freezing and growth of condensed water during cooling operation. Accordingly, it is possible to prevent water from being melted by freezing of condensed water and water from being discharged into the room, and to prevent deformation and breakage of the indoor unit 1 due to the pressing force of the grown ice. Can do.

  Furthermore, since the suction port 4e is open to the side surface side of the indoor unit 1, a sufficient air volume can be secured even if the front side of the front panel 3 is shielded and the suction port 4a is shielded. Therefore, it is possible to prevent a decrease in operating efficiency, and it is not necessary to increase the rotational speed of the blower fan 7 in order to ensure a sufficient air volume, and an increase in noise can be prevented. Moreover, when the further air volume is required, you may open | release as needed from what was distribute | arranged to the back side among the rotating plates 19 which shield the suction inlet 4a.

  Even if an inclined surface or a curved surface is formed on the front side or the upper surface side of the front panel 3, if the inclined surface or curved surface is visible from the front, the same effect can be obtained by shielding. The same effect can be obtained by shielding with an opening / closing mechanism such as the rotating plate 19 if the surface is an inclined surface or curved surface that can be seen from the upper surface.

  Further, the inner surface of the front panel 3 is in contact with air taken into the indoor unit 1, and the outer surface of the front panel 3 is in contact with air sent from the blowout port 5. For this reason, condensation is likely to occur due to a temperature difference between both surfaces of the front panel 3, but it is more desirable to fix a heat insulating material made of foamed resin or the like to the front panel 3 because condensation can be prevented. The front panel 3 may be formed hollow to provide a heat insulating material composed of an air layer or a vacuum layer.

  Similarly, when performing a dehumidifying operation by an air conditioner, the same effect as described above can be obtained by sending out low-temperature air dehumidified by heat exchange with the indoor heat exchanger 9 upward. The air conditioner may be a reheat drying type dehumidifying device including an evaporation unit and a condensation unit in an indoor heat exchanger. That is, in the reheat drying type dehumidifier, the air that has been cooled and dehumidified by heat exchange in the evaporation section is heated by the heat exchange in the condensing section and sent out indoors. At this time, even if the temperature is raised by the condenser, it is possible to prevent the air having a temperature lower than the body temperature from always hitting the user.

  Next, FIGS. 5 and 6 are a schematic side sectional view and a perspective view showing the indoor unit of the air conditioner of the second embodiment. Parts similar to those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals. In the present embodiment, the upper surface portion 2a of the cabinet 2 is opened on substantially the entire surface to form a suction port 4a, and an opening / closing door 16 that opens and closes the suction port 4a is pivotally supported by the cabinet 2. Other parts are the same as those of the first embodiment.

  When the operation of the air conditioner is started, the opening / closing door 16 is opened, and the air sucked into the indoor unit 1 from the suction ports 4a and 4e exchanges heat with the indoor heat exchanger 9, and is cooled or heated. Then, the direction is regulated in the left and right and up and down directions by the vertical louver 12 and the horizontal louvers 11a and 11b through the air blowing path 6, and the air is sent from the blowout port 5 into the room in a substantially horizontal direction or in a downward direction as indicated by an arrow A1. Is done.

  When the temperature sensor detects that the temperature difference between the room temperature and the set temperature is small, the amount of air blown gradually decreases due to the adjustment of the blower fan 7. Then, as shown in FIG. 7, the horizontal louvers 11 a and 11 b rotate to close the first opening 5 a, and the rotating plates 14 and 15 rotate to branch the second opening 5 b and the branch passage 13. Part is released. Further, the suction port 4 a is closed by the opening / closing door 16. Thereby, the air sucked from the suction port 4e exchanges heat with the indoor heat exchanger and flows through the blower path 6. Then, the conditioned air flows through the branch passage 13 and is sent upward from the second opening 5b as indicated by an arrow A2 in FIG.

  Accordingly, as in the first embodiment, the user is not always exposed to cold or warm winds, and the user's discomfort is prevented and comfort is improved, and the user's body temperature is locally increased during cooling. It is possible to improve health safety without lowering. In addition, the front side of the indoor unit 1 is shielded, and the suction port 4a is closed by the opening / closing door 16 when the conditioned air is sent upward from the air outlet 5, so that a short circuit can be prevented. Furthermore, since the suction port 4e is provided in the side part of the indoor unit 1, it is possible to prevent a reduction in the air volume.

  Next, FIGS. 9 and 10 are a schematic side sectional view and perspective view showing an indoor unit of an air conditioner according to a third embodiment. Parts similar to those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals. The difference from the first embodiment is that a slide plate 17 that opens and closes the suction port 4a by sliding is provided instead of the rotating plate 19 (see FIG. 1). Other parts are the same as those of the first embodiment.

  When the operation of the air conditioner is started, the air sucked into the indoor unit 1 from the suction ports 4a and 4e exchanges heat with the indoor heat exchanger 9, and is cooled or heated. Then, the direction is regulated in the left and right and up and down directions by the vertical louver 12 and the horizontal louvers 11a and 11b through the air blowing path 6, and the air is sent from the blowout port 5 into the room in a substantially horizontal direction or in a downward direction as indicated by an arrow A1. Is done.

  When the temperature sensor detects that the temperature difference between the room temperature and the set temperature is small, the amount of air blown gradually decreases due to the adjustment of the blower fan 7. Then, as shown in FIG. 11, the horizontal louvers 11 a and 11 b rotate to close the first opening 5 a, and the rotating plates 14 and 15 rotate to branch the second opening 5 b and the branch passage 13. Part is released. At the same time, the suction port 4 a is closed by the slide plate 17.

  As a result, air is taken in from the suction port 4e, and the conditioned air flowing through the air blowing path 6 flows through the branch passage 13 and is sent upward from the second opening 5b as shown by the arrow A2 in FIG. Is done. In this embodiment, the same effect as that of the first embodiment can be obtained. Moreover, when the further air volume is required, you may open | release as needed from what was distribute | arranged to the back side among the slide plates 17 which shield the suction inlet 4a.

  Next, FIGS. 13 and 14 are a schematic side sectional view and perspective view showing an indoor unit of an air conditioner according to a fourth embodiment. Parts similar to those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals. The difference from the first embodiment is that an opening / closing member 18 is provided to open and close the suction port 4a in a bellows shape instead of the rotating plate 19 (see FIG. 1). Other parts are the same as those of the first embodiment.

  When the operation of the air conditioner is started, the air sucked into the indoor unit 1 from the suction ports 4a and 4e exchanges heat with the indoor heat exchanger 9, and is cooled or heated. Then, the direction is regulated in the left and right and up and down directions by the vertical louver 12 and the horizontal louvers 11a and 11b through the air blowing path 6, and the air is sent from the blowout port 5 into the room in a substantially horizontal direction or in a downward direction as indicated by an arrow A1. Is done.

  When the temperature sensor detects that the temperature difference between the room temperature and the set temperature is small, the amount of air blown gradually decreases due to the adjustment of the blower fan 7. Then, as shown in FIG. 15, the horizontal louvers 11 a and 11 b rotate to close the first opening 5 a, and the rotating plates 14 and 15 rotate to branch the second opening 5 b and the branch passage 13. Part is released. At the same time, the suction port 4 a is closed by the opening / closing member 18.

  As a result, air is taken in from the suction port 4e, and the conditioned air flowing through the blowing path 6 flows through the branch passage 13 and is sent upward from the second opening 5b as shown by the arrow A2 in FIG. Is done. In this embodiment, the same effect as that of the first embodiment can be obtained.

  In 1st-4th embodiment, although the suction inlet 4e is provided in the side part 2b of the cabinet 2, you may provide a suction inlet in the other position which does not produce short circuits, such as the lower part of the indoor unit 1. . Further, even when no suction port is provided in addition to the suction port 4a on the upper surface side, the opening area of the suction port 4a is narrowed by the opening / closing mechanism (16 to 19), while ensuring a predetermined amount of air. Short circuit can be suppressed.

It is an outline side sectional view showing the indoor unit of the air harmony machine of a 1st embodiment of the present invention. It is a perspective view which shows the indoor unit of the air conditioner of 1st Embodiment of this invention. It is a schematic sectional side view which shows operation | movement of the indoor unit of the air conditioner of 1st Embodiment of this invention. It is a perspective view which shows operation | movement of the indoor unit of the air conditioner of 1st Embodiment of this invention. It is a schematic sectional side view which shows the indoor unit of the air conditioner of 2nd Embodiment of this invention. It is a perspective view which shows the indoor unit of the air conditioner of 2nd Embodiment of this invention. It is a schematic sectional side view which shows operation | movement of the indoor unit of the air conditioner of 2nd Embodiment of this invention. It is a perspective view which shows operation | movement of the indoor unit of the air conditioner of 2nd Embodiment of this invention. It is a schematic sectional side view which shows the indoor unit of the air conditioner of 3rd Embodiment of this invention. It is a perspective view which shows the indoor unit of the air conditioner of 3rd Embodiment of this invention. It is a schematic sectional side view which shows operation | movement of the indoor unit of the air conditioner of 3rd Embodiment of this invention. It is a perspective view which shows operation | movement of the indoor unit of the air conditioner of 3rd Embodiment of this invention. It is a schematic sectional side view which shows the indoor unit of the air conditioner of 4th Embodiment of this invention. It is a perspective view which shows the indoor unit of the air conditioner of 4th Embodiment of this invention. It is a schematic sectional side view which shows operation | movement of the indoor unit of the air conditioner of 4th Embodiment of this invention. It is a perspective view which shows operation | movement of the indoor unit of the air conditioner of 4th Embodiment of this invention. It is a schematic side sectional view showing an indoor unit of a conventional air conditioner. It is a schematic side sectional view showing an indoor unit of another conventional air conditioner. It is a schematic side sectional view showing the operation of an indoor unit of another conventional air conditioner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Cabinet 2a Upper surface part 2b Side surface part 3 Front panel 4a, 4c, 4e Suction inlet 5 Outlet 5a 1st opening part 5b 2nd opening part 6 Blower path 7 Blower fan 8 Air filter 9 Indoor heat exchanger 10 Drain pan 11a, 11b Horizontal louver 12 Vertical louver 13 Branch passages 14, 15 Rotating plate 16 Opening / closing door 17 Slide plate 18 Opening / closing member 19 Rotating plate

Claims (5)

In the air conditioner that is attached to the upper wall surface of the room and harmonizes the air taken in from the suction port and sends it out from the blowout port provided in the lower part via the passage from below to above,
The suction port is formed by an opening provided in the upper surface portion of the air conditioner,
An opening and closing mechanism for opening and closing the opening;
A rotating plate provided at an upper part of the outlet and opening and closing the upper part of the outlet;
A wind direction plate provided at a lower portion of the air outlet and changing the wind direction;
A shielding part that shields the front part of the air conditioner ;
The passage includes a first upper wall and a lower wall that are inclined downward as it goes forward, and an inclination that is continuous upward in the vicinity of the blowout opening continuously in front of the first upper wall. A second upper wall,
The opening / closing mechanism is opened, the upper part of the outlet is closed by the rotating plate, the lower part of the outlet is opened by the wind direction plate, and conditioned air is sent downward from the lower part of the outlet. Air blowing mode,
The forward direction of the airflow flowing between the first upper wall and the lower wall is closed by the wind direction plate, the upper part of the outlet is opened by the rotating plate, and conditioned air is supplied from the upper part of the outlet. An air conditioner characterized by comprising a second air blowing mode for sending upward and passing through the front surface of the shielding part . The air conditioner according to claim 1, wherein the air conditioner is switched from the first air blowing mode to the second air blowing mode at a predetermined time . Also formed on the side surface of the further air conditioner of the suction port, according to claim 1 or claim 2, characterized in said opening and closing mechanism closed when transmitting the conditioned air upward from the air outlet Air conditioner. The air conditioner according to any one of claims 1 to 3, characterized in that a heat insulating material to said shield portion. Said outlet first opening substantially guiding the horizontal direction or the air in a downward direction, the preceding claims, characterized in that a second opening for guiding the air upward according to any one of claims 4 Air conditioner.

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