JP2003106555A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner capable of improving amenity, improving safety of health and improving cooling efficiency and warming efficiency. SOLUTION: Indoor air is taken in from suction ports 4a, 4c formed on an upper surface and on a front surface of an indoor apparatus 1, and after it is heat-exchanged by an indoor heat exchanger 3, it is delivered indoor from a first opening part 5a of a blowout port 5. When it comes to a specified period of time, lateral louvers 11a, 11b revolve and the first opening part 5a is closed, revolving plates 14, 15 revolve and a second opening part 5b is opened. Consequently, regulated air flowing in a blowing route 6 flows in a branch passage 13 and it is delivered from the second opening part 5b and introduced upward. The regulated air rising along a front panel 3 is introduced forward by a baffle part 20, and inflow of it to the suction port 4c is prevented. Accordingly, it is possible to prevent a user from always being contact with cool air and warm air and to prevent a short circuit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner that harmoniously delivers sucked air.

FIG. 21 is a schematic side sectional view showing an indoor unit of a conventional air conditioner. A main body of an indoor unit 1 of an air conditioner is held by a cabinet 2, and a front panel 3 having 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 a wall in the room.

In the gap between the lower end of the front panel 3 and the lower end of the cabinet 2, there is formed a substantially rectangular air outlet 5 extending in the width direction of the indoor unit 1. Inside the indoor unit 1, a ventilation path 6 is formed that communicates with the air outlet 5 from the suction ports 4a and 4c. A blower fan 7 that sends out air is arranged 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 for collecting and removing dust contained in the air sucked from the suction ports 4a, 4c is provided at a position facing the front panel 3. Between the blower fan 7 and the air filter 8 in the blower path 6,
The indoor heat exchanger 9 is arranged. The indoor heat exchanger 9 is connected to a compressor (not shown), and the refrigeration cycle is operated by driving the compressor. Due to the operation of the refrigeration cycle, the indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling. Further, during heating, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature.

Drain pans 10 for collecting dew condensation that has fallen from the indoor heat exchanger 9 during cooling or dehumidification are provided at the front and rear lower portions of the indoor heat exchanger 9. In the vicinity of the blower outlet 5 in the blower path 6, horizontal louvers 11a and 11b that face the outside and can change the vertical blowout angle from substantially horizontal to downward are provided. A vertical louver 12 is provided on the inner side of the horizontal louvers 11a and 11b, the vertical louver 12 being capable of changing the blowing angle in the left-right direction.

In the air conditioner having the above structure, when the operation of the air conditioner is started, the blower fan 7 is rotationally driven,
Refrigerant from an outdoor unit (not shown) flows into the indoor heat exchanger 9 to operate the refrigeration cycle. As a result, air is sucked into the indoor unit 1 through the suction ports 4a and 4c, and the 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. The vertical louvers 12 and the horizontal louvers 11a, 1
The direction is regulated in the left-right direction and the vertical direction by 1b, and the air is discharged downward from the outlet 5 into the room.

Immediately after the start of the operation of the air conditioner, it is necessary to quickly circulate the indoor air. For this reason, the rotation speed of the blower fan 7 is increased, and the air that has undergone heat exchange in the indoor heat exchanger 9 is vigorously discharged from the outlet 5. Then, when the temperature difference between the room temperature and the set temperature becomes small, the amount of air blown gradually decreases due to the adjustment of the blower fan 7. As a result, the interior of the chamber is finely formed with a uniform temperature distribution.

[0009]

However, according to the above-mentioned conventional air conditioner, the air conditioner is usually installed at a position higher than the height of the user, and extends substantially horizontally or downward from the outlet 5. Blown. For this reason, if the ventilation is continued in the state where the temperature has reached the vicinity of the set temperature, the user is constantly hit with cold wind or warm wind. Therefore, there is a problem that the user feels uncomfortable. In addition, there is 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, researches and developments have been made on air conditioners which can send conditioned air upward from the air outlet. 22 is a schematic side sectional view showing an indoor unit of this air conditioner, and the same parts as those in FIG. 21 are designated by the same reference numerals. The air outlet 5 of the indoor unit 1 has a first opening 5a and a second opening 5b. The first opening 5a is arranged at the end of the air passage 6 so as to face downward. The second opening 5b communicates with the air blowing path 6 through a branch passage 13 that is inclined and branched upward from the air blowing path 6. Rotating plates 14 and 15 pivotally supported by the front panel 3 by rotating shafts 14 a and 15 a are provided at both ends of the branch passage 13.

When the operation of the air conditioner is started, the suction port 4
The air taken into the indoor unit 1 from a and 4c exchanges heat with the indoor heat exchanger 9, and is cooled or heated. The vertical louvers 12 and the horizontal louvers 11a, 1
The direction is regulated in the left-right and up-down directions by 1b, and the air is discharged from the air outlet 5 into the room from the first opening 5a in a substantially horizontal direction or a downward direction as shown by an arrow A1.

Immediately after the start of the operation of the air conditioner, it is necessary to quickly circulate the indoor air. For this reason, the rotation speed of the blower fan 7 is increased, and the air that has undergone heat exchange in the indoor heat exchanger 9 is vigorously discharged from the outlet 5. When the temperature sensor (not shown) detects that the temperature difference between the room temperature and the set temperature is small, the blower fan 7 is adjusted to gradually reduce the blown air amount.

Then, as shown in FIG. 23, the horizontal louver 1
1a and 11b rotate and the 1st opening part 5a is closed.
At the same time, the rotating plates 14 and 15 rotate to open the second opening 5b and the branch portion of the branch passage 13. This allows
Conditioned air flowing through the blower path 6 flows through the branch passage 13 and is discharged from the second opening 5b, and is guided upward as shown by an arrow A2.

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

However, according to the above air conditioner, the conditioned air sent upward from the second opening 5b is
As shown by an arrow A3, the air is taken into the indoor unit 1 through the suction port 4c provided on the front panel 3, and a so-called short circuit is generated. Therefore, there is a problem that cooling efficiency or heating efficiency of the air conditioner is reduced.

Further, during the cooling operation or the dehumidifying operation, the cool air sent from the second opening 5b immediately passes through the indoor heat exchanger 9, so that the refrigerant in the indoor heat exchanger 9 absorbs sufficient heat. I can't. For this reason, the temperature of the indoor heat exchanger 9 decreases as compared with the normal time, and dew condensation increases and dew condensation water freezes.

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 is not maintained at a low temperature and a part thereof is thawed. When the melted water droplets are dropped on the blower fan 7, the second opening 5b is formed.
Is released indoors. Further, the temperature of the indoor heat exchanger 9 is lowered, and the surfaces of the cabinet 2 and the front panel 3 are dewed, so that the dew condensation water drops. Due to these, there is a problem that the room is flooded. There is also a problem that the cabinet 2 and the front panel 3 are damaged or deformed by the pressing force of the ice that has 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 also improving cooling efficiency or heating efficiency. It is another object of the present invention to provide an air conditioner capable of preventing a short circuit and preventing water in the room due to dew condensation and damage or deformation of the air conditioner.

[0019]

In order to achieve the above object, the present invention is installed on a wall surface in a room and adjusts the air taken in from an intake port to switch downward and upward from an outlet provided in the lower part. In an air conditioner that sends out, a shielding portion that is arranged below the suction port and shields the front side above the air outlet, and inflow of air rising along the shielding portion into the suction port. Inflow prevention means for preventing

According to this structure, when the air conditioner is operated, the air taken in from the suction port provided in the upper part of the air conditioner is conditioned and sent out downward from the air outlet, and from the air outlet at a predetermined time. It is sent upward. The conditioned air sent out upward rises along the shielding portion and flows into the room without being taken into the air conditioner by the inflow prevention means.

Further, the present invention is characterized in that, in the air conditioner having the above-mentioned structure, the inflow prevention means comprises an air guide portion for guiding the air rising along the shield portion forward. According to this configuration, the conditioned air that rises along the shielding portion changes its direction by the air guide portion, is guided forward, and circulates in the room.

Further, the present invention is characterized in that, in the air conditioner having the above-mentioned structure, a part of the shielding portion is projected forward to form the air guide portion.

Further, the present invention is characterized in that, in the air conditioner having the above-mentioned structure, the air guide portion is composed of a rotating member pivotally provided on the shielding portion. According to this configuration, the adjusted air that rises along the shielding portion is guided forward by being turned in a predetermined direction by the air guide portion formed of the rotating member being turned, and circulated in the room.

Further, the present invention is characterized in that, in the air conditioner having the above-mentioned structure, the inflow prevention means is composed of a movable member extending an upper portion of the shielding portion. According to this configuration, when the adjusting air is sent upward from the outlet, the movable member extends the upper portion of the shielding portion, and the adjusting member rising along the shielding portion is blocked from flowing into the suction port by the movable member.

The present invention is also characterized in that, in the air conditioner having the above structure, the movable member slides along the shielding portion.

The present invention is also characterized in that, in the air conditioner having each of the above-mentioned configurations, a heat insulating material is provided on the shielding portion. With this configuration, when the adjusted air is sent upward from the air outlet, the dew condensation due to the temperature difference between the air taken into the air conditioner and the air passing through the surface of the shield is prevented.

Further, the present invention is characterized in that, in the air conditioner having each of the above-mentioned constitutions, the cooling air or the dehumidifying operation is performed by sending the regulated air upward from the air outlet.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. For convenience of explanation, the same parts as those in FIGS. 22 and 23 of the conventional example are designated by the same reference numerals.
FIG. 1 is a schematic side sectional view showing an indoor unit of an air conditioner of a first embodiment. The main body of the indoor unit 1 of the air conditioner is held by the 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 of the cabinet 2, and a suction port 4c is formed by a gap between the upper end of the front panel 3 and the cabinet 2. An air guide portion 20 which is bent forward is integrally formed at the upper end of the front panel 3.

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 a wall in the room. In the gap between the lower end portion of the front panel 3 and the lower end portion of the cabinet 2, there is formed an air outlet 5 including first and second substantially rectangular opening portions 5a and 5b extending in the width direction of the indoor unit 1.

Inside the indoor unit 1, there is formed an air blowing path 6 which communicates from the suction ports 4a, 4c to the air outlet 5. In front of the cabinet 2 in the blower path 6, a blower fan 7 that sends out air is arranged. As the blower fan 7, for example, a cross flow fan or the like can be used.

An air filter 8 for collecting and removing dust contained in the air sucked from the suction ports 4a, 4c is provided at a position facing the front panel 3. Between the blower fan 7 and the air filter 8 in the blower path 6,
The indoor heat exchanger 9 is arranged. A space having a predetermined interval is provided between the front panel 3 and the indoor heat exchanger 9, and the air taken in through the suction ports 4a and 4c comes into contact with the indoor heat exchanger 9 in a large area through the space. It is supposed to do.

The indoor heat exchanger 9 is connected to a compressor (not shown), and the refrigeration cycle is operated by driving the compressor. Due to the operation of 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.
Is provided.

Drain pans 10 for collecting the dew condensation that has fallen from the indoor heat exchanger 9 during cooling or dehumidification are provided at the front and rear lower portions of the indoor heat exchanger 9. Front drain pan 1
0 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 air outlet 5 in the blower path 6, horizontal louvers 11a and 11b that face the outside and can change the vertical blowing angle from substantially horizontal to downward are provided. A vertical louver 12 is provided on the inner side of the horizontal louvers 11a and 11b, the vertical louver 12 being capable of changing the blowing angle in the left-right direction.

The second opening 5b communicates with the air blowing passage 6 through a branch passage 13 which is inclined and branched upward from the air blowing passage 6. Rotating shafts 14a and 15a are provided at both ends of the branch passage 13.
Rotating plates 14 and 15 pivotally supported by the front panel 3 are provided. 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 air flow. As a result, an increase in the flow resistance of the air flowing through the blower path 6 is prevented.

In the air conditioner having the above structure, when the operation of the air conditioner is started, the blower fan 7 is rotationally driven,
Refrigerant from an outdoor unit (not shown) flows into the indoor heat exchanger 9 to operate the refrigeration cycle. As a result, air is sucked into the indoor unit 1 through the suction ports 4a and 4c, and the 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. The vertical louvers 12 and the horizontal louvers 11a, 1
The direction is regulated in the left-right direction and the up-down direction by 1b, and the air is discharged from the air outlet 5 toward the interior in a substantially horizontal direction or a downward direction as shown by an arrow A1.

Immediately after the start of the operation of the air conditioner, it is necessary to quickly circulate the indoor air. For this reason, the rotation speed of the blower fan 7 is increased, and the air that has undergone heat exchange in the indoor heat exchanger 9 is vigorously discharged from the outlet 5. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature is small, the blower fan 7 controls to gradually reduce the blown air amount.

Then, as shown in FIG.
a and 11b rotate to close the first opening 5a, and the rotating plates 14 and 15 rotate to rotate the second opening 5b and the branch passage 1.
The branch part of 3 is opened. As a result, the air taken in from the suction port 4a flows through the air blowing path 6 and the branch passage 13 and is sent out from the second opening 5b, and is guided upward as shown by an arrow A2. Therefore, the user is not constantly exposed to cold wind or warm wind, and the user's discomfort can be prevented and comfort can be improved. Furthermore, the health safety can be improved without locally lowering the body temperature of the user during cooling.

The conditioned air sent upward from the second opening 5b passes through the front surface of the shielded front panel 3 (shielding portion) and is blown forward by the air guide portion 20 below the suction port 4c. Be guided. Therefore, it is possible to prevent a short circuit in which the regulated air flows into the indoor unit 1 through the suction ports 4a and 4c.

Therefore, it is possible to prevent the cooling efficiency or the heating efficiency of the air conditioner from decreasing. Further, since the short circuit is prevented, it is possible to prevent an increase in dew condensation on the surface of the front panel 3 and to prevent freezing and growth of dew condensation water adhering to the surface of the indoor heat exchanger 9. Therefore, it is possible to prevent the dew condensation water and the frozen ice from being released into the room, and to prevent the cabinet 2 and the front panel 3 from being deformed or damaged due to the pressing force of the grown ice.

Further, since the suction port 4c is opened toward the front side, a sufficient air volume can be secured when the conditioned air is delivered from the first opening 5a in a substantially horizontal direction or a downward direction. Therefore, it is possible to prevent a decrease in operating efficiency, and it is not necessary to increase the rotation speed of the blower fan 7 in order to secure a sufficient air volume, and it is possible to prevent an increase in noise. The space between the indoor unit 1 and the ceiling in the room is narrow and the suction port 4
When the amount of intake air from a is small, the effect of preventing the decrease in air flow becomes greater.

The inner surface of the front panel 3 comes into contact with the air taken into the indoor unit 1, and the outer surface of the front panel 3 comes into contact with the air delivered from the air outlet 5. For this reason, dew condensation is likely to occur due to the temperature difference between both surfaces of the front panel 3, but it is more desirable to fix a heat insulating material such as foamed resin to the front panel 3 because dew condensation can be prevented. The front panel 3 may be formed hollow to provide a heat insulating material including an air layer or a vacuum layer.

When the dehumidifying operation is performed by the air conditioner, similarly, the low temperature air dehumidified by the heat exchange with the indoor heat exchanger 9 is sent out to obtain the same effect as the above. it can. Further, the air conditioner may be a reheat dry type dehumidifier having an evaporation section and a condensation section inside the indoor heat exchanger. That is, in the reheat dry type dehumidifying device, the air that has been cooled and dehumidified by heat exchange in the evaporator is heated in the condenser by heat exchange and sent out to the room. At this time, even if the temperature is raised in the condenser, it is possible to prevent the air having a temperature lower than the body temperature from constantly hitting the user.

Next, FIG. 3 is a schematic side sectional view showing an indoor unit of the air conditioner of the second embodiment. 1 and 2 described above.
The same parts as those of the first embodiment shown in FIG. In this embodiment, the suction port 4c is attached to the front panel 3
An air guide portion 20 that is provided on the upper part of the vehicle and projects forward below the suction port 4c is provided integrally with the front panel. Other parts are the same as those in the first embodiment.

Similarly to the above, when the operation of the air conditioner is started, the indoor air is sucked into the indoor unit 1 through 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. The vertical louvers 12 and the horizontal louvers 11a, 1
The direction is regulated in the left-right direction and the up-down direction by 1b, and the air is discharged from the air outlet 5 toward the interior in a substantially horizontal direction or a downward direction as shown by an arrow A1.

When the temperature sensor detects that the temperature difference between the room temperature and the set temperature has decreased, the blower fan 7 adjusts to gradually reduce the blown air amount. Then, as shown in FIG. 4, the horizontal louvers 11a and 11b rotate to close the first opening 5a, and the rotating plates 14 and 15 rotate to branch the second opening 5b and the branch passage 13. The part is opened. As a result, the conditioned air flowing through the blower path 6 is divided into the branch passage 13
And is discharged upward from the second opening 5b.

The conditioned air rising along the lower part of the shielded front panel 3 is guided by the air guide portion 2 as shown by an arrow A2.
At 0, it turns to the front and flows through the room. Therefore, the first
Similar to the embodiment, it is possible to prevent the user from feeling uncomfortable and to prevent the short circuit without reducing the air amount because the suction port 4c is provided.

Next, FIG. 5 is a schematic side sectional view showing an indoor unit of the air conditioner of the third embodiment. 3 and 4 described above.
The same parts as those of the second embodiment shown in are denoted by the same reference numerals. The difference from the second embodiment is that the suction port 4c (see FIG.
This is the point that the front panel 3 above the air guide portion 20 is shielded by closing (see). The other parts are the same as in the second embodiment.

When the operation of the air conditioner is started, the suction port 4
Air is sucked into the indoor unit 1 from a. The air exchanges heat with the indoor heat exchanger 9 and is cooled or heated. Then, the vertical louver 12 and the horizontal louver 11 are passed through the ventilation path 6.
The direction is regulated in the left-right and up-down directions by a and 11b, and the air is delivered from the air outlet 5 toward the substantially horizontal direction or the downward direction as shown by the arrow A1.

When the temperature sensor detects that the temperature difference between the room temperature and the set temperature is small, the blower fan 7 adjusts to gradually reduce the blown air amount. Then, as shown in FIG. 6, the horizontal louvers 11a and 11b rotate to close the first opening 5a, and the rotating plates 14 and 15 rotate to branch the second opening 5b and the branch passage 13. The part is opened.

As a result, the conditioned air flowing through the blowing path 6 flows through the branch passage 13 and is discharged upward from the second opening 5b. The conditioned air that rises along the shielded lower portion of the front panel 3 is guided by the air guide portion 2 as shown by an arrow A2.
At 0, it turns to the front and flows through the room. Therefore, as in the first and second embodiments, the user's discomfort is prevented, and the air amount is lower than in the first and second embodiments because the front side suction port is not provided. Can be prevented.

Next, FIG. 7 is a schematic side sectional view showing an indoor unit of the air conditioner of the fourth embodiment. 5 and 6 described above.
The same parts as those in the third embodiment shown in FIG. The front panel 3 of the present embodiment is integrally formed on the front surface side and the upper surface side, and is attached to the cabinet 2. A suction port 4a is formed on the upper surface side of the front panel 3, and an air guide portion 20 projecting obliquely is formed on the upper end on the front surface side. The other parts are the same as in the third embodiment.

The air taken into the indoor unit 1 from the suction port 4a is sent out from the first opening 5a of the air outlet in a substantially horizontal direction or downward as shown by an arrow A1. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature has become small, the first opening 5a is closed as shown in FIG.
The second opening 5b is opened.

Then, the adjusted air is blown upward from the second opening 5b and is guided upward by the air guide portion 20 as indicated by an arrow A2. Therefore, similar to the third embodiment, it is possible to prevent the user from feeling uncomfortable and prevent a short circuit. The air guide portion 20 may be provided on the upper surface side of the front panel 3, and a short circuit can be prevented if it is on the front side of the suction port 4a.

Next, FIG. 9 is a schematic side sectional view showing an indoor unit of the air conditioner of the fifth embodiment. 1 and 2 described above.
The same parts as those of the first embodiment shown in FIG. The difference from the first embodiment is that a baffle plate 23 (rotating member) pivotally supported on the upper end of the front panel 3 by a pivot shaft 23a is provided in place of the air guide portion 20 (see FIG. 1). Is. Other parts are the same as those in the first embodiment.

The air taken into the indoor unit 1 through the suction ports 4a, 4c is sent out from the first opening 5a of the air outlet 5 in a substantially horizontal direction or downward as shown by an arrow A1. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature has become small, as shown in FIG.
The first opening 5a is closed by 11b, and the rotating plate 14,
The rotation of 15 opens the second opening 5b and the branch passage 13. As a result, the adjusted air is discharged upward from the second opening 5b.

Further, the air guide plate 23 pivots so as to project forward, and the adjusted air rising along the front panel 3 is guided forward and upward by the air guide plate 23 as shown by an arrow A2. Therefore, similar to the first embodiment, it is possible to prevent the user from feeling uncomfortable and prevent the short circuit without lowering the air amount because the suction port 4c is provided on the front side.

By adjusting the direction of the baffle plate 23, the wind direction of the adjusted air can be changed to a desired direction. Further, when the air conditioner is not used, the baffle plate 23 can be arranged along the front panel 3 as shown in FIG. 9, and the appearance of the indoor unit 1 is not spoiled.

Next, FIG. 11 is a schematic side sectional view showing an indoor unit of the air conditioner of the sixth embodiment. The same parts as those in the fifth embodiment shown in FIGS. 9 and 10 described above are designated by the same reference numerals. In this embodiment, a baffle plate 24 (rotating member) is arranged so as to cover the front side of the front panel 3, and the baffle plate 24 is pivotally supported on the upper end of the front panel 3 by a pivot shaft 24a. Other parts are the same as in the fifth embodiment.

The air taken into the indoor unit 1 through the suction ports 4a and 4c is sent out from the first opening 5a of the outlet 5 in a substantially horizontal direction or downward as shown by an arrow A1. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature has become small, as shown in FIG.
The first opening 5a is closed by 11b, and the rotating plate 14,
The rotation of 15 opens the second opening 5b and the branch passage 13. As a result, the adjusted air is discharged upward from the second opening 5b.

Further, the baffle plate 24 is rotated so as to project forward from the upper end of the front panel 3,
The conditioned air rising along with is guided forward and upward by the baffle plate 24 as shown by an arrow A2. Therefore, similarly to the fifth embodiment, it is possible to prevent the user from feeling uncomfortable and to prevent the short circuit without lowering the air amount. Further, by adjusting the direction of the baffle plate 24, the wind direction of the adjusted air can be changed to a desired direction. Furthermore, the baffle plate 2 when the air conditioner is not used
4 can be stored in contact with the front panel 3, and the appearance of the indoor unit 1 is not spoiled.

Next, FIGS. 13 and 14 are a schematic side sectional view and a perspective view showing the indoor unit of the air conditioner of the seventh embodiment. The same parts as those in the sixth embodiment shown in FIGS. 11 and 12 are designated by the same reference numerals. In this embodiment, instead of the baffle plate 24 (see FIG. 11), a moving plate 21 (movable member) is provided so as to contact the inner surface of the front panel 3 on the front side, and the moving plate 21 slides with respect to the front panel 3. It is movable. The other parts are the same as in the sixth embodiment.

With the moving plate 21 arranged at a position facing the lower shield portion on the front side of the front panel 3, the suction port 4 is provided.
The air taken into the indoor unit 1 from a and 4c is sent out from the first opening 5a of the outlet 5 in a substantially horizontal direction or downward as shown by an arrow A1. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature is small,
5, the first opening 5a is closed by the horizontal louvers 11a and 11b, and the second opening 5b and the branch passage 13 are opened by the rotation of the rotating plates 14 and 15.
As a result, the adjusted air is discharged upward from the second opening 5b.

Further, the moving plate 21 slides so as to project upward from the upper end of the front panel 3, and the shield portion on the front surface side of the front panel 3 is extended. As a result, the regulated air rising along the front panel 3 is prevented from flowing into the suction port 4c as shown by the arrow A2. Therefore, as in the sixth embodiment, it is possible to prevent the user from feeling uncomfortable and prevent the short circuit without causing a decrease in the air amount. Further, when the air conditioner is not used, the moving plate 21 can be stored at the position facing the front panel 3, and the appearance of the indoor unit 1 is not spoiled.

Next, FIG. 17 is a schematic side sectional view showing an indoor unit of an air conditioner of the eighth embodiment. FIG. 13-
The same parts as those in the seventh embodiment shown in FIG. 16 are designated by the same reference numerals. The difference from the seventh embodiment is that the suction port 4c
Is formed on the front panel 3. The other parts are the same as in the seventh embodiment.

The air taken into the indoor unit 1 from the inlets 4a and 4c with the movable plate 21 arranged at the position covering the lower part of the front surface of the front panel 3 is indicated by the arrow from the first opening 5a of the outlet 5. As indicated by A1, it is delivered in a substantially horizontal direction or downward. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature has become small, as shown in FIG. 18, the horizontal louvers 11a and 11b close the first opening 5a, and the rotating plates 14 and 15 rotate. Second opening 5b due to movement
And the branch passage 13 is opened. As a result, the adjusted air is discharged upward from the second opening 5b.

Further, the moving plate 21 slides so as to project upward from the upper end of the front panel 3, and the shield portion on the front surface side of the front panel 3 is extended. As a result, the regulated air rising along the front panel 3 is prevented from flowing into the suction port 4c as shown by the arrow A2. Therefore, similarly to the seventh embodiment, it is possible to prevent the user from feeling uncomfortable and prevent the short circuit without causing a decrease in the air amount. Further, when the air conditioner is not used, the moving plate 21 can be stored at the position facing the front panel 3, and the appearance of the indoor unit 1 is not spoiled.

Next, FIG. 19 is a schematic side sectional view showing an indoor unit of an air conditioner of the ninth embodiment. FIG. 17 above,
The same parts as those in the eighth embodiment shown in FIG. 18 are designated by the same reference numerals. The difference from the eighth embodiment is that the suction port 4c
(See FIG. 17) is closed to shield the upper part of the front panel 3. Other parts are the same as in the eighth embodiment.

The air taken into the indoor unit 1 from the suction port 4a with the moving plate 21 arranged at the position covering the front side of the front panel 3 is as shown by the arrow A1 from the first opening 5a of the air outlet 5. To a substantially horizontal direction or downward. When the temperature sensor detects that the temperature difference between the room temperature and the set temperature has become small, as shown in FIG.
The first opening 5a is closed by 1a and 11b, and the second opening 5b and the branch passage 1 are formed by the rotation of the rotating plates 14 and 15.
3 is open. As a result, the adjusted air is discharged upward from the second opening 5b.

Further, the moving plate 21 slides so as to project upward from the upper end of the front panel 3, and the shield portion on the front surface side of the front panel 3 is extended. As a result, the adjusted air rising along the front panel 3 is prevented from flowing into the suction port 4a as shown by the arrow A2. Therefore, the user's discomfort is prevented, and the air amount is reduced because the front suction port is not provided, but a short circuit can be prevented. Further, when the air conditioner is not used, the moving plate 21 can be stored at the position facing the front panel 3, and the appearance of the indoor unit 1 is not spoiled.

[0072]

According to the present invention, in an air conditioner for switching downward and upward from the air outlet and delivering the air conditioner, a shielding portion which is arranged below the air inlet and shields the front side above the air outlet. Since the inflow prevention means for preventing the air rising along the shielding part from flowing into the suction port is provided, the user is not constantly exposed to cold wind or warm air, and the discomfort of the user is prevented. It is possible to improve comfort and health safety, prevent short circuits, and improve cooling efficiency or heating efficiency. Further, by preventing the short circuit, it is possible to prevent an increase in dew condensation and freezing and growth of dew condensation water during a cooling operation or a dehumidifying operation. Therefore, it is possible to prevent the release of water into the room due to the dew condensation water or the water from which the frozen ice has melted, and to prevent the air conditioner from being deformed or damaged due to the pressing force of the grown ice.

Further, according to the present invention, since the adjusted air is guided forward by the air guide portion, it is possible to easily prevent the adjusted air from flowing into the suction port.

Further, according to the present invention, the inflow preventing means can be easily realized by projecting a part of the shielding portion forward.

Further, according to the present invention, since the air guide portion is composed of the rotating member pivotally provided on the shield portion, the air guide portion can be easily formed and the wind direction can be changed to a desired direction. it can. Further, by disposing the rotating member along the shielding portion when the air conditioner is not used, the appearance of the air conditioner is not spoiled.

Further, according to the present invention, since the inflow prevention means is composed of the movable member extending the upper portion of the shielding portion, it is possible to easily prevent the inflow to the suction port.

Further, according to the present invention, the inflow prevention means can be easily realized by the movable member that slides along the shield. Furthermore, by disposing the movable member facing the shield when the air conditioner is not used, the appearance of the air conditioner is not spoiled.

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

Further, according to the present invention, since the conditioned air is sent upward from the air outlet to perform the cooling operation or the dehumidifying operation,
It is possible to prevent the increase in condensed water and the freezing of condensed water due to the short circuit.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view showing an indoor unit of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a schematic side sectional view showing the operation of the indoor unit of the air-conditioning apparatus according to the first embodiment of the present invention.

FIG. 3 is a schematic side sectional view showing an indoor unit of an air conditioner of a second embodiment of the present invention.

FIG. 4 is a schematic side sectional view showing the operation of the indoor unit of the air-conditioning apparatus according to the second embodiment of the present invention.

FIG. 5 is a schematic side sectional view showing an indoor unit of an air conditioner of a third embodiment of the present invention.

FIG. 6 is a schematic side sectional view showing the operation of the indoor unit of the air-conditioning apparatus according to the third embodiment of the present invention.

FIG. 7 is a schematic side sectional view showing an indoor unit of an air-conditioning apparatus according to a fourth embodiment of the present invention.

FIG. 8 is a schematic side sectional view showing the operation of the indoor unit of the air-conditioning apparatus according to the fourth embodiment of the present invention.

FIG. 9 is a schematic side sectional view showing an indoor unit of an air conditioner of a fifth embodiment of the present invention.

FIG. 10 is a schematic side sectional view showing an operation of the indoor unit of the air-conditioning apparatus according to the fifth embodiment of the present invention.

FIG. 11 is a schematic side sectional view showing an indoor unit of an air conditioner of a sixth embodiment of the present invention.

FIG. 12 is a schematic side sectional view showing an operation of the indoor unit of the air-conditioning apparatus according to the sixth embodiment of the present invention.

FIG. 13 is a schematic side sectional view showing an indoor unit of an air conditioner of a seventh embodiment of the present invention.

FIG. 14 is a perspective view showing an indoor unit of an air conditioner of a seventh embodiment of the present invention.

FIG. 15 is a schematic side sectional view showing the operation of the indoor unit of the air-conditioning apparatus according to the seventh embodiment of the present invention.

FIG. 16 is a perspective view showing an operation of the indoor unit of the air-conditioning apparatus according to the seventh embodiment of the present invention.

FIG. 17 is a schematic side sectional view showing an indoor unit of an air conditioner of an eighth embodiment of the present invention.

FIG. 18 is a schematic side sectional view showing the operation of the indoor unit of the air-conditioning apparatus according to the eighth embodiment of the present invention.

FIG. 19 is a schematic side sectional view showing an indoor unit of an air-conditioning apparatus according to a ninth embodiment of the present invention.

FIG. 20 is a schematic side sectional view showing an operation of the indoor unit of the air-conditioning apparatus according to the ninth embodiment of the present invention.

FIG. 21 is a schematic side sectional view showing an indoor unit of a conventional air conditioner.

FIG. 22 is a schematic side sectional view showing an indoor unit of another conventional air conditioner.

FIG. 23 is a schematic side cross-sectional view showing the operation of another conventional indoor unit of an air conditioner.

[Explanation of symbols]

1 Indoor unit 2 cabinets 3 front panel 4a, 4c Suction port 5 outlet 5a First opening 5b Second opening 6 Blower route 7 Blower fan 8 Air filter 9 Indoor heat exchanger 10 drain pan 11a, 11b Horizontal louver 12 vertical louvers 13 branch passages 14, 15 Rotating plate 20 Wind guide 21 Moving plate (movable member) 23, 24 Baffle plate (rotating member)

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3L051 BG06                 3L060 AA03 AA05 DD05 EE01                 3L081 AA02 AB05 BA06

Claims (8)

[Claims] 1. An air conditioner attached to a wall surface in a room for harmonizing air taken in from a suction port and switching it downward and upward from a blowout port provided at a lower portion and delivering the air. And a shielding portion that shields a front surface side above the air outlet and an inflow prevention unit that prevents air rising along the shielding portion from flowing into the suction port. Air conditioner. 2. The air conditioner according to claim 1, wherein the inflow prevention unit includes an air guide portion that guides air rising along the shield portion forward. 3. The air conditioner according to claim 2, wherein a part of the shielding portion is projected forward to form the air guide portion. 4. The air conditioner according to claim 2, wherein the air guide section is composed of a rotating member pivotally provided on the shielding section. 5. The inflow prevention means comprises a movable member extending an upper portion of the shielding portion.
Air conditioner described in. 6. The air conditioner according to claim 5, wherein the movable member slides along the shield. 7. The air conditioner according to any one of claims 1 to 6, wherein a heat insulating material is provided on the shielding portion. 8. The air conditioner according to any one of claims 1 to 7, wherein conditioned air is sent upward from the air outlet to perform a cooling operation or a dehumidifying operation.