JP2006242567A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of improving amenity and safety on health, and preventing short-circuit by securing sufficient air distribution amount. <P>SOLUTION: The indoor air is taken from suction openings 4a, 4b formed on an upper face and a front face of an indoor unit 1 by opening an opening and closing plate 19, then exchanges heat with an indoor heat exchanger 3, and supplied into a room from a first opening portion 5a of a supply opening 5. Lateral louvers 11a, 11b are rotated at a prescribed time period, thus the first opening portion 5a is closed, and rotary plates 14, 15 are rotated to open a second opening portion 5b. Simultaneously the suction opening 4c is closed by the opening and closing plate 19. Thus the conditioned air circulated in a blow passage 6 is circulated to a branch passage 13, distributed from the second opening portion 5b, and guided upward. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an air conditioner that takes in ambient air and delivers conditioned air.

  FIG. 11 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. As a result, 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 direction is regulated in the left-right direction and the up-down direction by the vertical louver 12 and the horizontal louvers 11a and 11b through the air blowing path 6, and the air is sent out from the air outlet 5 to the room downward.

  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. 12 is a schematic side sectional view showing the indoor unit of this air conditioner, and the same reference numerals are given to the same portions 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 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 substantially horizontal direction or downward direction from the first opening 5a as shown by the arrow A1 from the blowout port 5. Sent to the room.

  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. 13, 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. Thereby, the adjustment air which distribute | circulates the ventilation path 6 distribute | circulates the branch channel | path 13, is sent out from the 2nd opening part 5b, and is guide | induced upwards as shown by 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 cool air sent from the second opening 5b 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 decreased as compared with the normal time, 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. Further, 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 provides an air conditioner that is attached to a wall surface of a room and harmonizes air taken in from a suction port and sends it out from an outlet provided in a lower portion to switch downward and upward. The mouth is disposed on the front side above the outlet, and an opening / closing member for opening and closing the suction port is provided.

  Further, the present invention provides the air conditioner having the above-described configuration, wherein the opening and closing member opens the suction port when sending air downward from the air outlet and sends the air upward from the air outlet. It is characterized by closing the suction port.

  According to this configuration, when the air conditioner is operated, the air taken in from the suction port provided on the front side of the air conditioner is harmonized by the opening of the opening / closing member, and is sent downward from the air outlet. When the predetermined time comes, the suction port on the front side is closed by the opening / closing member, and for example, air is taken in from the suction port provided on the upper surface side of the air conditioner and is sent upward from the air outlet. The conditioned air sent upward flows through the room without being taken in from the front side of the air conditioner. The front side of the air conditioner includes an inclined surface and a curved surface that can be viewed from the front.

  In the air conditioner having the above-described configuration, the present invention includes a front panel that covers a front surface of the air conditioner body, and the opening / closing member includes a rotating member pivotally supported by the front panel. .

  In the air conditioner having the above-described configuration, the present invention includes a front panel that covers a front surface of the air conditioner body, and the opening / closing member includes a moving member that slides on a surface of the front panel. .

  In the air conditioner having the above-described configuration, the present invention is characterized in that the opening and closing member can be folded and opened in a bellows shape.

  In the air conditioner having the above-described configuration, the present invention is characterized in that a heat insulating material is provided on the opening / closing member. According to this configuration, condensation due to a temperature difference between the air taken into the air conditioner when the opening and closing member is closed and the air that is sent upward from the outlet and passes through the surface of the opening and closing member is prevented.

  Further, the present invention is characterized in that in the air conditioner having the above-described configuration, the cooling air or the dehumidifying operation is performed by sending adjusted air upward from the air outlet.

  According to the present invention, in the air conditioner that switches from the outlet to the lower side and the upper side, the air conditioner is provided with an opening / closing member that opens and closes the front side. It is possible to improve comfort and health safety by preventing discomfort of the person and to prevent a short circuit. Therefore, cooling efficiency or heating efficiency can be improved. Further, since no short circuit occurs, it is possible to prevent 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, the opening / closing member opens the suction port when sending air downward from the blower outlet and closes the suction port when sending air upward from the blower outlet. A sufficient air volume can be secured when the conditioned air is sent in the downward direction. Accordingly, it is possible to prevent a decrease in operating efficiency, and it is not necessary to increase the rotational speed of the blower fan in order to ensure a sufficient air volume, thereby preventing an increase in noise.

  Further, according to the present invention, the opening / closing member can be easily formed by a rotating member pivotally supported by the front panel, a moving member that slides, or a bellows-like member.

  Further, according to the present invention, since the opening / closing member is provided with the heat insulating material, it is possible to further prevent condensation due to a temperature difference between both surfaces of the opening / closing member.

  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. 12 and 13 of the conventional example. FIG. 1 is a schematic side sectional view showing an indoor unit of an air conditioner according to a 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 suction port 4a is provided on the upper surface side of the front panel 3, and a suction port 4c is provided on the front side. The suction port 4c can be opened and closed by turning a plurality of opening and closing plates 19 pivotally supported on the front panel 3 by a turning shaft 19a.

  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 opening portions 5 a and 5 b having substantially rectangular shapes extending in the width direction of the indoor unit 1 is formed.

  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 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 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. 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 4c 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. Further, the opening / closing plate 19 is rotated to open the suction port 4c. As a result, 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 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 out from the blowout port 5 to the room in a substantially horizontal direction or 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. 2, 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 opening / closing plate 19 is rotated to close the suction port 4c. Thereby, the air taken in from the suction port 4a flows through the blower passage 6 and the branch passage 13, is sent out from the second opening 5b, and is guided upward as indicated by an 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.

  Further, the adjustment 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 by the opening / closing plate 19, a short circuit does not occur. Therefore, it is possible to prevent the cooling efficiency or heating efficiency of the air conditioner from being lowered. Further, since no short circuit occurs, condensation on the surface of the front panel 3 and freezing and growth of the condensed water adhering to the surface of the indoor heat exchanger 9 can be prevented. Accordingly, it is possible to prevent the condensed water and the frozen ice from being released into the room, and it is possible to prevent the cabinet 2 and the front panel 3 from being deformed or damaged by the pressing force of the grown ice.

  When the opening / closing plate 19 is closed, the inner surface of the opening / closing plate 19 comes into contact with the air taken into the indoor unit 1, and the outer surface of the opening / closing plate 19 comes into contact with the air sent from the outlet. For this reason, condensation is likely to occur due to a temperature difference between both surfaces of the opening / closing plate 19, but it is more desirable to fix the heat insulating material made of a foamed resin or a hollow member having an air layer to the opening / closing plate 19 because condensation can be prevented.

  Further, since the suction port 4c is opened by the opening / closing plate 19, a sufficient air volume is ensured by opening the opening / closing plate 19 when the conditioned air is sent from the first opening 5a in a substantially horizontal direction to a downward direction. Can do. 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. When the space between the indoor unit 1 and the indoor ceiling is narrow and the amount of intake air from the suction port 4a is small, the above effect becomes greater.

  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, FIG. 3 is a schematic side sectional view showing the indoor unit of the air conditioner according to the second embodiment. The same parts as those in the first embodiment shown in FIGS. 1 and 2 are given the same reference numerals. In the present embodiment, the suction port 4c is opened and closed by the opening / closing plate 20 pivotally supported on the front panel 3 by the rotation shaft 20a so as to cover substantially the entire suction port 4c on the front side. Other parts are the same as those of the first embodiment.

  Similarly to the above, when the operation of the air conditioner is started, the suction port 4c is opened by the rotation of the opening and closing plate 20, and the indoor air is sucked into the indoor unit 1 from the suction ports 4a and 4c. 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 out from the blowout port 5 to the room in a substantially horizontal direction or 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. 4, 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 opening / closing plate 20 rotates to close the suction port 4c. Thereby, the adjustment air which distribute | circulates the ventilation path 6 distribute | circulates the branch passage 13, and is sent upwards as shown by arrow A2 from the 2nd opening part 5b. Therefore, similarly to the first embodiment, it is possible to prevent the user from feeling uncomfortable and to prevent a short circuit without causing a decrease in the amount of air.

  Next, FIG. 5 is a schematic side sectional view showing the indoor unit of the air conditioner of the third embodiment. The same parts as those in the first embodiment shown in FIGS. 1 and 2 are given the same reference numerals. The difference from the first embodiment is that the front panel 3 is provided with a plurality of moving plates 21 that slide, and the suction port 4 c is opened and closed by the movement of the moving plate 21. Other parts are the same as those of the first embodiment.

  When the operation of the air conditioner is started, the suction port 4c is opened by the moving plate 21, and air is sucked into the indoor unit 1 from the suction ports 4a and 4c. The air 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 out from the blowout port 5 to the room in a substantially horizontal direction or 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. 6, 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 moving plate 21 moves and the suction port 4c is closed. Thereby, the adjustment air which distribute | circulates the ventilation path 6 distribute | circulates the branch passage 13, and is sent upwards as shown by arrow A2 from the 2nd opening part 5b. Therefore, similarly to the first embodiment, it is possible to prevent the user from feeling uncomfortable and to prevent a short circuit without causing a decrease in the amount of air.

  Next, FIG. 7 is a schematic perspective view showing the indoor unit of the air conditioner of the fourth embodiment. The same parts as those in the first embodiment shown in FIGS. 1 and 2 are given the same reference numerals. In the present embodiment, an opening / closing plate 22 that can be folded in a bellows shape is provided on the front surface of the front panel 3. The suction port 4 c can be opened and closed by the opening / closing plate 22. Other parts are the same as those of the first embodiment.

  The air taken into the indoor unit 1 from the suction ports 4a and 4c by opening the opening / closing plate 22 is sent out from the first opening 5a of the blowout port substantially horizontally or downward as indicated by an arrow A1. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature is small, the first opening 5a is closed and the second opening 5b is opened as shown in FIG. At the same time, the suction port 4c is closed by the opening / closing plate 22, and adjusted air is sent upward from the second opening 5b as indicated by an arrow A2. Therefore, similarly to the first embodiment, it is possible to prevent the user from feeling uncomfortable and to prevent a short circuit without causing a decrease in the amount of air.

  Next, FIG. 9 is a schematic side sectional view showing the indoor unit of the air conditioner of the fifth embodiment. The same parts as those in the first embodiment shown in FIGS. 1 and 2 are given the same reference numerals. The difference from the first embodiment is that the suction port 4c is arranged at one place on the upper portion of the front panel 3, and the opening / closing plate 16 capable of opening and closing the suction port 4c is pivotally supported on the front panel 3 by the pivot shaft 16a. Is a point. Other parts are the same as those of the first embodiment.

  The air taken into the indoor unit 1 from the suction ports 4a and 4c by opening the opening / closing plate 16 is sent from the first opening 5a of the blowout port 5 substantially horizontally or downward as indicated by an arrow A1. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature is small, the first opening 5a is closed by the lateral louvers 11a and 11b as shown in FIG. The second opening 5b and the branch passage 13 are opened by the movement. At the same time, the suction port 4 c is closed by the opening / closing plate 16. As a result, the adjustment air is sent upward from the second opening 5b as indicated by the arrow A2. Therefore, similarly to the first embodiment, it is possible to prevent the user from feeling uncomfortable and to prevent a short circuit without causing a decrease in the amount of air.

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 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 schematic sectional side 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 schematic sectional side 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 schematic sectional side 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 schematic sectional side view which shows the indoor unit of the air conditioner of 5th Embodiment of this invention. It is a schematic sectional side view which shows operation | movement of the indoor unit of the air conditioner of 5th 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 3 Front panel 4a, 4c 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 plates 16, 19, 20, 22 Opening / closing plate 21 Moving plate

Claims (7)

  In an air conditioner that is attached to a wall surface of an indoor room and harmonizes air taken in from a suction port and sends it out downward and upward from a blowout port provided in the lower part, the suction port is located on the front side above the blowout port And an air conditioner provided with an opening / closing member that opens and closes the suction port.   2. The opening / closing member opens the suction port when air is sent downward from the air outlet and closes the suction port when air is sent upward from the air outlet. Air conditioner as described in.   3. The air conditioner according to claim 1, further comprising: a front panel that covers a front surface of the air conditioner main body, wherein the opening / closing member includes a rotating member pivotally supported by the front panel.   3. The air conditioner according to claim 1, further comprising: a front panel that covers a front surface of the air conditioner main body, wherein the opening / closing member includes a moving member that slides on a surface of the front panel.   The air conditioner according to claim 1 or 2, wherein the opening and closing member can be folded and opened in a bellows shape.   The air conditioner according to any one of claims 1 to 5, wherein a heat insulating material is provided on the opening / closing member.   The air conditioner according to any one of claims 1 to 6, wherein conditioning air is sent upward from the air outlet to perform cooling operation or dehumidifying operation.

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