JP4169517B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner that harmonizes and sends out sucked air.
[0002]
[Prior art]
FIG. 8 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.
[0003]
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.
[0004]
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.
[0005]
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.
[0006]
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 outlet 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.
[0007]
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.
[0008]
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.
[0009]
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. Then, when the temperature difference between the room temperature and the set temperature is small, the air flow rate is gradually reduced by the control of the blower fan 7. As a result, the temperature distribution in the room is formed at a fine and uniform temperature.
[0010]
[Problems to be solved by the invention]
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 is a problem that the temperature of the user is locally lowered during cooling operation and the comfort is impaired.
[0011]
An object of this invention is to provide the air conditioner which can aim at the improvement of comfort.
[0012]
[Means for Solving the Problems]
  In order to achieve the above object, the present invention is an air conditioner that is attached to a wall surface in a room and harmonizes air taken in from a suction port and sends it out downward and upward from an air outlet provided in the lower part.
  A first openable and closable opening that forms the lower part of the outlet;
  A second opening forming an upper part of the outlet;
  It is provided so that it can rotate in the vertical direction.An airflow direction plate that varies the airflow passing through the first opening portion substantially horizontally or downward depending on the inclination angle;
  It is provided so that it can rotate in the vertical direction.An air guide plate that opens and closes the second opening and guides the airflow passing through the second opening along the second opening when the opening is opened, and is guided substantially horizontally to upward according to the inclination angle;
  When the first and second openings are opened, the inclination angle of the wind guide plate with respect to the horizontal is increased as the inclination angle of the wind direction plate with respect to the horizontal is reduced.
[0013]
According to this configuration, when the second opening is closed by the air guide plate, conditioned air is sent downward from the first opening. When the second opening is opened by the air guide plate, conditioned air is sent upward from the second opening. When the second opening is opened, the direction of the air guide plate is varied in accordance with the operating conditions such as the air volume and the blowing temperature, and the conditioned air delivery direction is varied.
[0015]
  In addition, the present invention is an air conditioner that is attached to a wall surface in a room and that sends air taken in from a suction port downward and upward from an air outlet provided in a lower part,
  A first openable and closable opening that forms the lower part of the outlet;
  A second opening forming an upper part of the outlet;
  A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
  It is provided so that it can rotate in the vertical direction.An air guide plate that opens and closes the second opening and guides the airflow passing through the second opening along the second opening when the opening is opened, and is guided substantially horizontally to upward according to the inclination angle;
  When the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the temperature of the air sent out from the air outlet becomes lower.
[0016]
  In addition, the present invention is an air conditioner that is attached to a wall surface in a room and that sends air taken in from a suction port downward and upward from an air outlet provided in a lower part,
  A first openable and closable opening that forms the lower part of the outlet;
  A second opening forming an upper part of the outlet;
  A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
  It is provided so that it can rotate in the vertical direction.An air guide plate that opens and closes the second opening and guides the airflow passing through the second opening along the second opening when the opening is opened, and is guided substantially horizontally to upward according to the inclination angle;
  A heat exchanger that exchanges heat with the air taken in from the room,
  When the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the temperature of the heat exchanger decreases.
[0017]
  In addition, the present invention is an air conditioner that is attached to a wall surface in a room and that sends air taken in from a suction port downward and upward from an air outlet provided in a lower part,
  A first openable and closable opening that forms the lower part of the outlet;
  A second opening forming an upper part of the outlet;
  A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
  It is provided so that it can rotate in the vertical direction.An air guide plate that opens and closes the second opening and guides the airflow passing through the second opening along the second opening when the opening is opened, and is guided substantially horizontally to upward according to the inclination angle;
  When the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the amount of air sent from the air outlet decreases.
[0018]
  In addition, the present invention is an air conditioner that is attached to a wall surface in a room and that sends air taken in from a suction port downward and upward from an air outlet provided in a lower part,
  A first openable and closable opening that forms the lower part of the outlet;
  A second opening forming an upper part of the outlet;
  A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
  It is provided so that it can rotate in the vertical direction.An air guide plate that opens and closes the second opening and guides the airflow passing through the second opening along the second opening when the opening is opened, and is guided substantially horizontally to upward according to the inclination angle;
  A compressor operating the refrigeration cycle;
  When the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the operating frequency of the compressor is increased.
[0019]
  In addition, the present invention is an air conditioner that is attached to a wall surface in a room and that sends air taken in from a suction port downward and upward from an air outlet provided in a lower part,
  A first openable and closable opening that forms the lower part of the outlet;
  A second opening forming an upper part of the outlet;
  A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
  It is provided so that it can rotate in the vertical direction.An air guide plate that opens and closes the second opening and guides the airflow passing through the second opening along the second opening when the opening is opened, and is guided substantially horizontally to upward according to the inclination angle;
  When the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the current during operation of the air conditioner increases.
[0020]
  Moreover, the present invention provides an air conditioner configured as described above,The suction port is arranged in the upper front part of the main body cabinet,A shielding part that is arranged below the suction port and shields the front side above the outlet;When opening and closing the suction portPrevent inflow of air rising along the shield to the inletInflowAnd a preventive means.
[0021]
According to this configuration, the air sent out from the second opening due to the opening of the air guide plate rises on the front side of the air conditioner. At this time, inflow of air from the front side into the air conditioner is prevented by the shielding portion, and inflow of air from the suction port into the air conditioner is suppressed by the inflow prevention means.
[0022]
  Further, the present invention is the air conditioner having the above-described configuration, wherein the inflow prevention means is provided with a variable direction with a tip facing upward,The inclination angle with respect to the horizontal is smallAs described above, the direction of the inflow prevention means is varied so as to approach the horizontal. According to this configuration, for example, when the elevation angle of the baffle plate is large, the air rising along the shielding portion increases, and when the elevation angle is small, the air rising along the shielding portion decreases. At this time, by controlling the opening / closing angle of the inflow preventing means according to the elevation angle of the air guide plate, it is possible to suppress the short circuit while taking in the surrounding air from the suction port.
[0023]
  In the air conditioner having the above-described configuration, the air conditioner further includes a control unit that controls opening and closing of the air guide plate, and a prohibiting unit that prohibits the control unit from opening the air guide plate. Yes. According to this configuration, when the user operates the prohibiting means including a switch or the like, the air guide plate opens and closes the second opening to switch the air sending direction, and the direction when the air opening plate is opened becomes constant.
  Further, the present invention provides an air conditioner that is attached to an indoor wall surface and that harmonizes air taken in from a suction port and sends it downward and upward from a blower port provided in a lower part, and forms a lower part of the blower port.FirstA first opening and a second opening forming the upper part of the outlet;It is provided so that it can rotate in the vertical direction.When the difference between the room temperature and the set temperature is small, the air flow guide plate opens and closes the second opening and guides the airflow passing through the second opening along the second opening when the second opening is opened. In addition, the air guide plate is characterized in that the wind direction of the air flow sent out from the second opening is variable from a substantially horizontal direction to an upward direction.
  In the air conditioner having the above-described configuration, the present invention provides a suction port disposed on the front surface of the air conditioner main body, a first position that is provided in the suction port and covers the suction port, and a first port that opens the suction port. Inflow prevention means that moves between two positions, and the inflow prevention means moves to the first position when the wind direction of the air flow sent out from the second opening is upward.
  Further, in the air conditioner having the above-described configuration, the present invention provides a suction port on the front surface of the air conditioner main body, and when the wind direction of the airflow sent from the second opening is upward, the second openingAir conditionerAn inflow prevention means is provided in the suction port for taking a position to prevent the air rising along the front surface of the main body from flowing into the suction port and leading it forward.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
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 in FIG. 8 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.
[0025]
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 4 a is provided in the upper surface portion of the cabinet 2, and a suction port 4 c is formed by a gap between the upper end of the front panel 3 and the cabinet 2. At the upper end of the front panel 3, there is provided a flap (inflow preventing means) 23 that pivots between a position that is pivotally supported by a pivot shaft 23a and covers the suction port 4c and a position that opens.
[0026]
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.
[0027]
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.
[0028]
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.
[0029]
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. 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.
[0030]
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.
[0031]
In the vicinity of the first opening 5a of the blowout port 5 in the blower path 6, lateral louvers (wind direction plates) 11a and 11b that face the outside and can change the blowing angle in the vertical direction from substantially horizontal to downward are provided. ing. 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.
[0032]
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 an air guide plate 14 and a rotary plate 15 that are pivotally supported on the front panel 3 by rotary shafts 14 a and 15 a. 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.
[0033]
FIG. 2 is a circuit diagram showing a refrigeration cycle of the air conditioner. The outdoor unit of the air conditioner is provided with a compressor 31, a four-way switching valve 32, an outdoor heat exchanger 33, a blower fan 34, and a throttle mechanism 35. One end of the compressor 31 is connected to the outdoor heat exchanger 33 through a four-way switching valve 32 by a refrigerant pipe 36. The other end of the compressor 31 is connected to the indoor heat exchanger 9 via a four-way switching valve 32 by a refrigerant pipe 36. The outdoor heat exchanger 33 and the indoor heat exchanger 9 are connected via a throttle mechanism 35 by a refrigerant pipe 36.
[0034]
When the cooling operation is started, the compressor 31 is driven and the blower fan 7 is rotated. Thus, a refrigeration cycle 30 is formed in which the refrigerant returns to the compressor 31 through the compressor 31, the four-way switching valve 32, the outdoor heat exchanger 33, the throttle mechanism 35, the indoor heat exchanger 9, and the four-way switching valve 32.
[0035]
By operating the refrigeration cycle 30, the indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling. Further, during the heating operation, the four-way switching valve 32 is switched to rotate the blower fan 34, and the refrigerant flows in the opposite direction to the above. Thereby, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature.
[0036]
FIG. 3 is a block diagram illustrating a configuration of a control device that controls the operation of the air conditioner. The control device 40 includes a CPU 41 that performs various arithmetic processes, and an input circuit 42 that receives an input signal and an output circuit 43 that outputs a calculation result of the CPU 41 are connected to the CPU 41. Further, a memory 44 is provided for storing a calculation program of the CPU 41 and temporarily storing calculation results.
[0037]
A signal detected by a sensor such as a wind direction plate angle detector 45 that detects the rotation angle of the horizontal louvers 11a and 11b (see FIG. 1) is input to the input circuit. The output circuit 43 is connected to a wind guide plate drive unit 46 and a flap drive unit 47 which are motors for driving the wind guide plate 14 and the flap 23 (see FIG. 1).
[0038]
As will be described later, when the first opening 5a is opened, the second opening 5b is closed by the air guide plate 14 and the rotating plate 15, and conditioned air is sent downward. If the 2nd opening part 5b is open | released, the 1st opening part 5a will be closed by the horizontal louvers 11a and 11b, and conditioned air will be sent out upwards.
[0039]
Further, the second opening 5b can be opened by opening a first opening 5a by operating a remote controller (not shown). At this time, the angle of the horizontal louvers 11a and 11b is detected by the wind direction plate angle detecting unit 45, and the wind guide plate driving unit 46 and the flap driving unit 47 are driven by the control device 40 according to the detected angle.
[0040]
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.
[0041]
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.
[0042]
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.
[0043]
Then, as shown in FIG. 4, the horizontal louvers 11a and 11b rotate to close the first opening 5a, and the air guide plate 14 and the rotation plate 15 rotate to rotate the second opening 5b and the branch passage. 13 branches are opened. Thereby, the air taken in from the suction ports 4a and 4c 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. 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, the comfort is improved without lowering the temperature of the user's experience locally during cooling.
[0044]
The adjustment air sent upward from the second opening 5b passes through the front surface of the shielded front panel 3 (shielding part), and is guided forward by the flap 23 below the suction port 4c. For this reason, it is possible to prevent a short circuit in which the regulated air flows into the indoor unit 1 from the suction ports 4a and 4c. Therefore, it is possible to prevent the cooling efficiency or heating efficiency of the air conditioner from being lowered.
[0045]
Moreover, since a short circuit is prevented, it is possible to prevent an increase in condensation on the surface of the front panel 3 and freezing and growth of condensed water adhering to the surface of the indoor heat exchanger 9. 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.
[0046]
Furthermore, since the suction port 4c is opened toward the front side, a sufficient air volume can be secured when the conditioned air is sent from the first opening 5a in a substantially horizontal direction to a downward direction. 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 effect of preventing a reduction in the air volume becomes greater.
[0047]
Further, the second opening 5b can be opened when the first opening 5a is opened by operating the remote controller. At this time, as shown in FIG. 5, for example, when the inclination angle of the horizontal louvers 11a and 11b is 0 ° with respect to the horizontal direction, the air guide plate 14 and the flap 23 are arranged at + 30 ° under the control of the control device 40. Thereby, conditioned air is sent out substantially horizontally from the 1st opening part 5a, and is sent out upwards from the 2nd opening part 5b.
[0048]
When the inclination angle of the horizontal louvers 11a and 11b is −30 ° with respect to the horizontal direction, the air guide plate 14 and the flap 23 are arranged at 0 ° under the control of the control device 40. Thereby, conditioned air is sent downward from the first opening 5a and is sent substantially horizontally from the second opening 5b. Similarly, when the inclination angle of the horizontal louvers 11a and 11b is −10 ° and −20 ° with respect to the horizontal direction, the air guide plate 14 and the flap 23 are arranged at + 20 ° and + 10 °, respectively.
[0049]
Therefore, even when conditioned air is sent out vigorously from the first opening 5a, the conditioned air is sent out from the second opening 5b substantially horizontally to upward, and can be quickly cooled and heated to every corner of the room. . Moreover, when the inclination angle of the horizontal louvers 11a and 11b approaches horizontal, the inclination angle of the air guide plate 14 also approaches horizontal and conditioned air is sent out substantially horizontally.
[0050]
Thereafter, the air circulates in the upper part of the room by returning to the direction of the suction ports 4 a and 4 c arranged above the blower outlet 5. Thereby, the conditioned air which distribute | circulates the downward direction of a room | chamber interior can be reduced. Therefore, by setting the horizontal louvers 11a and 11b to desired angles, the indoor air circulation state can be varied according to the purpose of the user, and comfort can be improved.
[0051]
Further, when the conditioned air sent out from the second opening 5b is directed upward, the flap 23 has an inclination angle larger than the horizontal and rotates in a direction to close the suction port 4c. Thereby, it is possible to prevent a short circuit while securing a sufficient intake amount.
[0052]
The angle of the flap 23 should just change according to the angle of the baffle plate 14, and does not need to be changed at any time. For example, when the angle of the air guide plate 14 is 0 ° to 10 °, the angle of the flap 23 is 10 °. When the angle of the air guide plate 14 is 10 ° to 20 °, the angle of the flap 23 is 20 °. Also good.
[0053]
Further, the flap 23 may be configured to be driven independently of the air guide plate 14 so that the user can set the desired angle. In this way, it is possible to prevent the short circuit more finely according to the user and to secure the intake air amount.
[0054]
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.
[0055]
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.
[0056]
Further, if there is a wall or an obstacle in the vicinity of the indoor unit 1, the air sent upward from the second opening 5b rebounds and is taken in from the intake holes 4a and 4c, which may increase the short circuit. For this reason, it is more desirable to provide the remote controller or the indoor unit 1 with a switch (prohibiting means) that prohibits the opening of the air guide plate 14 and the rotating plate 15 because the wind direction can be controlled in accordance with the use situation.
[0057]
Next, FIG. 6 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 to 5 are given the same reference numerals. In the present embodiment, in addition to the first embodiment, a temperature sensor 25 that detects the blow-out temperature of the conditioned air is provided in the blower path 6.
[0058]
  In addition, in FIG.45Instead, the output of the temperature sensor 25 is input to the control device 40, and the wind guide plate driving unit 46 and the flap driving unit 47 are driven based on the detection result of the temperature sensor 25. Other parts are the same as those in the first embodiment.
[0059]
Similarly to the above, when the operation of the air conditioner is started, 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.
[0060]
When it is detected 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. As in FIG. 4, the horizontal louvers 11 a and 11 b rotate to close the first opening 5 a, and the air guide plate 14 and the rotation plate 15 rotate to rotate the second opening 5 b and the branch passage 13. The branch part of is opened. Thereby, the adjustment air which distribute | circulates the ventilation path 6 distribute | circulates the branch passage 13, and is sent upwards from the 2nd opening part 5b.
[0061]
The adjustment air rising along the lower part of the shielded front panel 3 changes its direction forward by the flap 23 as shown by an arrow A2 (see FIG. 4) and circulates in the room. 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 air amount because the suction port 4c is provided.
[0062]
Further, the second opening 5b is opened when the first opening 5a is opened by operating the remote controller. At this time, for example, when the blowing temperature detected by the temperature sensor 25 is 10 ° C. or less, the air guide plate 14 and the flap 23 are arranged at + 30 ° under the control of the control device 40. When the blowing temperature is 10 ° C. to 15 ° C., the air guide plate 14 and the flap 23 are arranged at + 20 °, and when the blowing temperature is 20 ° C. or more, the air guide plate 14 and the flap 23 are arranged at 0 °.
[0063]
Since the low-temperature air has a higher specific gravity than the high-temperature air, a part of the conditioned air having a low blowing temperature is sent upward by changing the angle of the air guide plate 14 according to the blowing temperature. Thereby, the low temperature air which hits a user can be decreased, and a user's discomfort can be reduced more. In addition, the angle of the flap 23 may be varied independently of the air guide plate 14, or the angle of the flap 23 may be constant.
[0064]
Next, FIG. 7 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 to 5 are given the same reference numerals. In the present embodiment, in addition to the first embodiment, a temperature sensor 26 for detecting the temperature of the indoor heat exchanger 9 is provided.
[0065]
  In addition, in FIG.45Instead, the output of the temperature sensor 26 is input to the control device 40, and the wind guide plate driving unit 46 and the flap driving unit 47 are driven based on the detection result of the temperature sensor 26. Other parts are the same as those in the first embodiment.
[0066]
When the operation of the air conditioner is started, air is sucked into the indoor unit 1 from the suction port 4a. 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.
[0067]
When it is detected 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, similarly to FIG. 4 described above, the horizontal louvers 11a and 11b rotate to close the first opening 5a, and the air guide plate 14 and the rotation plate 15 rotate to rotate the second opening 5b and the branch. The branch portion of the passage 13 is opened.
[0068]
Thereby, the adjustment air which distribute | circulates the ventilation path 6 distribute | circulates the branch passage 13, and is sent upwards from the 2nd opening part 5b. The adjustment air rising along the shielded lower portion of the front panel 3 changes its direction forward by the flap 23 as shown by an arrow A2 (see FIG. 4) and circulates in the room. Therefore, similarly to the first and second embodiments, it is possible to prevent the user from feeling uncomfortable and to prevent a short circuit.
[0069]
Further, the second opening 5b is opened when the first opening 5a is opened by operating the remote controller. At this time, for example, when the temperature of the indoor heat exchanger 9 is 10 ° C. or less, the air guide plate 14 and the flap 23 are arranged at + 30 ° under the control of the control device 40. When the temperature of the indoor heat exchanger 9 is 10 ° C. to 15 ° C., the air guide plate 14 and the flap 23 are arranged at + 20 °, and when the temperature of the indoor heat exchanger 9 is 20 ° C. or more, the air guide plate 14 and the flap 23 are Arranged at 0 °.
[0070]
Since the low-temperature air has a higher specific gravity than the high-temperature air, by changing the angle of the air guide plate 14 according to the temperature of the indoor heat exchanger 9, a part of the conditioned air having a low blowing temperature is sent upward. The Thereby, the low temperature air which hits a user can be decreased, and a user's discomfort can be reduced more. In addition, the angle of the flap 23 may be varied independently of the air guide plate 14, or the angle of the flap 23 may be constant.
[0071]
Next, a fourth embodiment will be described. The present embodiment has the same configuration as that of the first embodiment shown in FIGS. And in FIG. 3, it replaces with the wind direction board angle detection part 45, and the rotation speed detection part which detects the rotation speed of the ventilation fan 7 is provided. The air flow rate of the conditioned air sent from the outlet 5 can be detected by the rotation speed detection unit.
[0072]
Thereby, when opening the 2nd opening part 5b at the time of opening of the 1st opening part 5a by operation of a remote controller, the angle of the baffle plate 14 can be varied according to an air volume. For example, when the set air volume is “strong wind”, the air guide plate 14 and the flap 23 are arranged at 0 ° under the control of the control device 40. When the set air volume is “weak”, the air guide plate 14 and the flap 23 are arranged at + 20 °, and when the set air volume is “light”, the air guide plate 14 and the flap 23 are arranged at + 30 °.
[0073]
Therefore, when the air volume is small, the conditioned air is sent upward to prevent the reach distance from being shortened, and the room can be cooled and heated to every corner. On the other hand, when the air volume is large, the air can be sent out in a substantially horizontal direction to reduce unnecessary upward sending, thereby efficiently cooling and heating. In addition, the angle of the flap 23 may be varied independently of the air guide plate 14, or the angle of the flap 23 may be constant.
[0074]
Next, a fifth embodiment will be described. The present embodiment has the same configuration as that of the first embodiment shown in FIGS. And in FIG. 3, it replaces with the wind direction board angle detection part 45, and the frequency detection part which detects the frequency of the compressor 31 (refer FIG. 2) is provided.
[0075]
Thereby, when opening the 2nd opening part 5b when the 1st opening part 5a is open | released by operation of a remote controller, the angle of the baffle plate 14 can be varied according to the frequency of the compressor 31. FIG. For example, when the frequency is 70 Hz or more, the air guide plate 14 and the flap 23 are arranged at + 30 ° under the control of the control device 40. When the frequency is 40 Hz to 70 Hz, the air guide plate 14 and the flap 23 are arranged at + 20 °, and when the frequency is 40 Hz or less, the air guide plate 14 and the flap 23 are arranged at 0 °.
[0076]
During cooling, when the frequency of the compressor 31 is high, the cooling capacity is improved and the temperature of the indoor heat exchanger 9 is lowered. When the frequency of the compressor 31 is low, the cooling capacity is lowered and the temperature of the indoor heat exchanger 9 is increased. Therefore, as in the second and third embodiments, a part of the conditioned air having a low blowing temperature is sent upward. Thereby, the low temperature air which hits a user can be decreased, and a user's discomfort can be reduced more. In addition, the angle of the flap 23 may be varied independently of the air guide plate 14, or the angle of the flap 23 may be constant.
[0077]
Next, a sixth embodiment will be described. The present embodiment has the same configuration as that of the first embodiment shown in FIGS. And in FIG. 3, it replaces with the wind direction board angle detection part 45, and the consumption current detection part which detects the electric current at the time of the operation | movement of an air conditioner is provided. The consumption current detection unit can be configured by a current transformer or the like that generates a secondary voltage proportional to the current value.
[0078]
Thereby, when opening the 2nd opening part 5b at the time of opening of the 1st opening part 5a by operation of a remote controller, the angle of the baffle plate 14 can be varied according to the electric current at the time of operation of an air conditioner. . For example, when the current during operation is 12 A or more, the air guide plate 14 and the flap 23 are arranged at + 30 ° under the control of the control device 40. When the current during operation is 7A to 12A, the air guide plate 14 and the flap 23 are arranged at + 20 °, and when the current during operation is 7A or less, the air guide plate 14 and the flap 23 are arranged at 0 °. In addition, the angle of the flap 23 may be varied independently of the air guide plate 14, or the angle of the flap 23 may be constant.
[0079]
When the current during operation of the air conditioner is large, the frequency of the compressor 31 (see FIG. 2) is considered high, and the temperature of the indoor heat exchanger 9 is low during cooling. It is considered that the frequency of the compressor 31 is low when the current during operation of the air conditioner is small, and the temperature of the indoor heat exchanger 9 is high during cooling. Therefore, as in the second and third embodiments, a part of the conditioned air having a low blowing temperature is sent upward. Thereby, the low temperature air which hits a user can be decreased, and a user's discomfort can be reduced more.
[0080]
Note that the current during operation of the air conditioner may increase not only due to an increase in the frequency of the compressor 31 but also due to an increase in the outdoor load. When the frequency of the compressor 31 increases, the current increases rapidly. Therefore, the wind guide plate 14 may be driven in consideration of the time change of the current. For example, the above control can be performed when a change in current exceeding 1 A occurs in 60 seconds without performing the above control in a change in current of 1 A or less in 60 seconds.
[0081]
In the first to sixth embodiments, the wind guide plate according to the wind direction of the delivery air, the blowing temperature, the temperature of the indoor heat exchanger 9, the volume of the delivery air, the frequency of the compressor, and the current during operation of the air conditioner, respectively. Although the angle of 14 is variable, you may vary the angle of the baffle plate 14 according to the operating condition of other air conditioners.
[0082]
【The invention's effect】
According to the present invention, since conditioned air is sent downward and upward from the first and second openings, the user is not always exposed to cold or warm air, and the comfort is improved by preventing the user from feeling uncomfortable. Can be achieved. Further, since the direction of the air guide plate that opens and closes the second opening is varied based on the operating condition of the air conditioner, the second is also provided when the conditioned air is sent out vigorously from the first opening immediately after the start of operation. The conditioned air is sent from the opening portion substantially horizontally to upward, and can be quickly cooled and heated to every corner of the room.
[0083]
Further, according to the present invention, since the direction of the air guide plate is varied based on the direction of the wind direction plate, the indoor air circulation state such as reducing the conditioned air flowing under the room according to the purpose of the user, for example. The comfort can be improved.
[0084]
Further, according to the present invention, the direction of the air guide plate is varied based on the temperature of the air sent from the outlet, the temperature of the indoor heat exchanger, the operating frequency of the compressor, or the current consumption of the air conditioner. Further, a part of the conditioned air having a low blowing temperature can be sent upward to reduce the low-temperature air hitting the user. Therefore, the user's discomfort can be further reduced.
[0085]
Further, according to the present invention, the direction of the air guide plate is changed based on the air volume sent from the air outlet, so that, for example, when the air volume is small, the conditioned air is sent upward to prevent the reach distance from being shortened. In addition to being able to cool and heat all the corners of the room, when the air volume is large, it can be sent out in a substantially horizontal direction to reduce unnecessary upward sending, thereby efficiently cooling and heating.
[0086]
In addition, according to the present invention, since the shielding portion that shields the front side above the air outlet and the inflow prevention means that can be opened and closed to prevent the inflow of air to the suction port are provided, a short circuit is prevented. Cooling efficiency or heating efficiency can be improved. Further, 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.
[0087]
Further, according to the present invention, since the position of the inflow prevention means is varied based on the direction of the air guide plate, for example, when the conditioned air sent out from the second opening is directed upward, the inclination angle of the inflow prevention means By making the height larger than the horizontal and disposing the suction port at a position where the suction port is closed, it is possible to prevent a short circuit while securing a sufficient intake amount.
[0088]
Further, according to the present invention, since the prohibiting means for prohibiting the air from being sent from the second opening is provided, when there is a wall or an obstacle in the vicinity of the indoor unit, the air is sent upward from the second opening. When the air bounces back and is taken in from the intake hole, an increase in the short circuit can be prevented, and the wind direction can be controlled according to the use situation.
[Brief description of the 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 circuit diagram showing a refrigeration cycle of the air conditioner according to the first embodiment of the present invention.
FIG. 3 is a block diagram showing a configuration of a control device for an air conditioner according to the first embodiment of the present invention.
FIG. 4 is a schematic side sectional view showing the operation of the indoor unit of the air conditioner according to the first embodiment of the present invention.
FIG. 5 is a schematic side sectional view showing the operation of the indoor unit of the air conditioner according to the first embodiment of the present invention.
FIG. 6 is a schematic side sectional view showing an indoor unit of an air conditioner according to a second embodiment of the present invention.
FIG. 7 is a schematic side sectional view showing an indoor unit of an air conditioner according to a third embodiment of the present invention.
FIG. 8 is a schematic side cross-sectional view showing an indoor unit of a conventional air conditioner.
[Explanation of symbols]
1 indoor unit
2 cabinets
3 Front panel
4a, 4c inlet
5 outlets
5a First opening
5b Second opening
6 Air flow path
7, 34 Blower fan
8 Air filter
9 Indoor heat exchanger
10 Drain pan
11a, 11b Horizontal louver (wind direction plate)
12 Vertical louver
13 branch passage
14 Wind guide plate
15 Rotating plate
23 Flap (inflow prevention means)
25, 26 Temperature sensor
31 Compressor
32 Four-way selector valve
33 Outdoor heat exchanger
35 Expansion mechanism
36 Refrigerant piping

Claims (12)

In the air conditioner that is attached to the wall surface of the room and sends the air taken in from the suction port downward and upward from the air outlet provided in the lower part,
A first openable and closable opening that forms the lower part of the outlet;
A second opening forming an upper part of the outlet;
An airflow direction plate that is provided so as to be pivotable in the vertical direction, and that changes the airflow passing through the first opening portion substantially horizontally or downward depending on the inclination angle;
An air guide plate which is provided so as to be pivotable in the vertical direction, opens and closes the second opening, and guides the airflow passing through the second opening when opened to substantially horizontally or upward depending on the inclination angle;
The air conditioner is characterized in that when the first and second openings are opened, the inclination angle of the wind guide plate with respect to the horizontal is increased as the inclination angle of the wind direction plate with respect to the horizontal is reduced. In the air conditioner that is attached to the wall surface of the room and sends the air taken in from the suction port downward and upward from the air outlet provided in the lower part,
A first openable and closable opening that forms the lower part of the outlet;
A second opening forming an upper part of the outlet;
A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
An air guide plate which is provided so as to be pivotable in the vertical direction, opens and closes the second opening, and guides the airflow passing through the second opening when opened to substantially horizontally or upward depending on the inclination angle;
The air conditioner is characterized in that, when the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the temperature of the air sent out from the air outlet becomes lower. In the air conditioner that is attached to the wall surface of the room and sends the air taken in from the suction port downward and upward from the air outlet provided in the lower part,
A first openable and closable opening that forms the lower part of the outlet;
A second opening forming an upper part of the outlet;
A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
An air guide plate which is provided so as to be pivotable in the vertical direction, opens and closes the second opening, and guides the airflow passing through the second opening when opened to substantially horizontally or upward depending on the inclination angle;
A heat exchanger that exchanges heat with the air taken in from the room,
The air conditioner is characterized in that when the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the temperature of the heat exchanger decreases. In the air conditioner that is attached to the wall surface of the room and sends the air taken in from the suction port downward and upward from the air outlet provided in the lower part,
A first openable and closable opening that forms the lower part of the outlet;
A second opening forming an upper part of the outlet;
A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
An air guide plate which is provided so as to be pivotable in the vertical direction, opens and closes the second opening, and guides the airflow passing through the second opening when opened to substantially horizontally or upward depending on the inclination angle;
The air conditioner is characterized in that, when the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the amount of air sent from the air outlet decreases. In the air conditioner that is attached to the wall surface of the room and sends the air taken in from the suction port downward and upward from the air outlet provided in the lower part,
A first openable and closable opening that forms the lower part of the outlet;
A second opening forming an upper part of the outlet;
A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
An air guide plate which is provided so as to be pivotable in the vertical direction, opens and closes the second opening, and guides the airflow passing through the second opening when opened to substantially horizontally or upward depending on the inclination angle;
A compressor operating the refrigeration cycle;
The air conditioner is characterized in that when the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the operating frequency of the compressor is increased. In the air conditioner that is attached to the wall surface of the room and sends the air taken in from the suction port downward and upward from the air outlet provided in the lower part,
A first openable and closable opening that forms the lower part of the outlet;
A second opening forming an upper part of the outlet;
A lateral louver provided in the first opening so as to be pivotable in the vertical direction, and opening and closing the first opening;
An air guide plate which is provided so as to be pivotable in the vertical direction, opens and closes the second opening, and guides the airflow passing through the second opening when opened to substantially horizontally or upward depending on the inclination angle;
The air conditioner is characterized in that when the first and second openings are opened, the inclination angle of the air guide plate with respect to the horizontal is increased as the current during operation of the air conditioner increases.   When the suction port is arranged at the upper front part of the main body cabinet, is arranged below the suction port and shields the front side above the blower outlet, and when the suction port is opened and closed and opened The air conditioner according to any one of claims 1 to 6, further comprising inflow prevention means for preventing inflow of air rising along the shielding portion into the suction port.   The inflow prevention means is variably provided with the tip facing upward, and the inflow prevention means is changed so as to approach the horizontal as the inclination angle of the air guide plate with respect to the horizontal decreases. The air conditioner according to claim 7.   9. The apparatus according to claim 1, further comprising a control unit that controls opening and closing of the air guide plate, and a prohibiting unit that prohibits the control unit from opening the air guide plate. Air conditioner. In the air conditioner that is attached to the wall surface of the room and sends the air taken in from the suction port downward and upward from the air outlet provided in the lower part,
A first opening that form a lower portion of said air outlet,
A second opening forming an upper part of the outlet;
A baffle plate that is provided so as to be pivotable in the vertical direction, opens and closes the second opening, and guides the airflow passing through the second opening along the second opening when opened, substantially horizontally or upward;
The air conditioner is characterized in that, when the difference between the room temperature and the set temperature is small, the air guide plate changes the airflow direction of the airflow sent from the second opening from a substantially horizontal direction to an upward direction. Machine. A suction port arranged on the front of the air conditioner body,
Inflow prevention means provided between the suction port and moving between a first position covering the suction port and a second position opening the suction port,
The air conditioner according to claim 10, wherein the inflow prevention means moves to the first position when the wind direction of the airflow sent from the second opening is upward. Arrange the inlet on the front of the air conditioner body,
When the wind direction of the airflow sent out from the second opening is upward, a position to prevent the air rising from the second opening along the front surface of the air conditioner main body from flowing into the suction port and leading it forward is taken. The air conditioner according to claim 10, wherein an inflow prevention means is provided in the suction port.

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