JP2005164068A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner, and an air conditioning method capable of improving air conditioning efficiency, and capable of reducing a feeling of discomfort. <P>SOLUTION: An indoor unit 1 of the air conditioner is attached to an upper part of a wall surface W1, and a suction opening 4 and a blow out opening 5 are respectively provided in a front face and a lower part of the indoor unit 1. Wind direction changing parts 113a, 113b, and 113c capable of changing a blow-out direction from a forward horizontal direction to a rear downward direction are arranged on the blow out opening 5. During heating initiation, conditioned air is sent obliquely downward toward the wall surface W1. The conditioned air descends along the wall surface W1 due to the Coanda effect, flows over a floor face F, and circulates in a room. In a stable state of heating operation, conditioned air is sent out by narrowing an air flow path by the wind direction changing parts 113b and 113c, and lowering an air capacity. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an air conditioner that harmonizes air taken into a housing and sends it out indoors.

  A conventional air conditioner is disclosed in Japanese Patent Application No. 2002-266437. FIG. 28 shows the behavior of the airflow in the room during the heating operation by this air conditioner. The indoor unit 1 of the air conditioner is attached to the upper part of the side wall W1. An air outlet (not shown) for sending conditioned air is provided at the lower part of the indoor unit 1.

  In the rising state where the room temperature immediately rises immediately after the start of the heating operation, it is necessary to circulate the room air promptly, and therefore, for example, the wind speed “strong” (approximately 5%) as indicated by the arrow B from the air outlet (not shown). ˜6 m / sec) and sent out substantially downward. And as shown by the arrow in the figure, it circulates through the room R and returns to the suction port 4 provided in the upper part or the front part of the indoor unit 1.

  When it is detected that the temperature difference between the temperature of the air sucked from the suction port 4 and the set temperature has become small, the blast volume gradually decreases, for example, the conditioned air at a wind speed “weak” (about 3 to 4 m / sec). Is sent out. FIG. 29 shows the behavior of the airflow in a stable state where the room temperature is stable within a predetermined temperature with respect to the set temperature. As shown by the arrow B ′ from the air outlet, the conditioned air that is sent in a direction substantially directly below at the wind speed “weak” flows through the room R and returns to the inlet 4. When the temperature in the room R becomes lower than the set temperature, the wind speed is increased again. As a result, the room temperature is maintained at the set temperature.

Patent Document 1 discloses an air conditioner that can change the direction of a wind direction plate and send conditioned air from a blowout port substantially downward.
Japanese Patent No. 3311932

  30 and 31 show the temperature distribution in the room when the heating operation is performed with the wind speed “strong” (FIG. 28) in the rising state and with the wind speed “weak” (FIG. 29) in the stable state, respectively. The set temperature of the room temperature is 28 ° C., and the size of the room R is 6 tatami (height 2400 mm, width 3600 mm, depth 2400 mm). A total of 48 measurement points are measured for the center section of the room R indicated by the alternate long and short dash line D in FIGS.

  When the wind speed is “strong”, as shown in FIG. 28, the warm air sent from the indoor unit 1 directly downward or forward and downward is subjected to strong buoyancy with a small specific gravity, so the wind direction is greatly bent forward before reaching the floor surface. It is done. Thereby, warm air pours directly into the living space. For this reason, there has been a problem that the user feels uncomfortable when the warm air continuously falls on the user's head.

  When the wind speed is “weak”, as shown in FIG. 29, the conditioned air sent directly downward from the indoor unit 1 has a low wind speed and receives a strong buoyancy, so it rises as shown by an arrow B ′. To do. Thereby, as shown in FIG. 31, only the upper part of the living room R is heated, and the vicinity of the floor is not heated. That is, there is a problem that the feet are cold and the warm air directly hits the head, which makes the user extremely uncomfortable.

  28 and 29, a part of the conditioned air sent out from the indoor unit 1 rises as shown by an arrow B ", and is so-called immediately taken into the indoor unit 1 without circulating in the living room R. Therefore, as shown in FIGS. 30 and 31, the air around the indoor unit 1 is overheated, and the temperature in the vicinity of the suction port 4 is higher than the set temperature of 28.degree. E occurs, thereby causing a problem that the air conditioning efficiency is lowered.

  Further, if warm-up pool E is generated by a short circuit when the heating operation is performed at the wind speed “strong” (FIG. 28), it is detected that the temperature of the air taken in from the suction port 4 is high and the temperature has approached the set temperature. Therefore, the wind speed is switched to “weak” before the entire room R is sufficiently warmed. However, since the temperature around the indoor unit 1 is high due to the warm air accumulation E, the wind speed cannot be switched to “strong”, the feet are cold, and the user is continuously given an unpleasant feeling that the warm air directly hits the head.

  An object of the present invention is to provide an air conditioner and an air conditioning method capable of improving comfort and improving air conditioning efficiency.

  In order to achieve the above object, the present invention relates to an air conditioner that performs heating operation by harmonizing the air that is attached to the wall surface of the room and taking in from the suction port, and sending the conditioned air in a variable direction from the air outlet. Based on the operating condition of the air conditioner or the indoor air condition, the air direction of the conditioned air can be varied between a substantially horizontal direction or a front upper direction and a substantially right direction or a rear lower direction.

  According to this configuration, when the heating operation is started by the air conditioner, the temperature of the air taken in from the suction port is raised, and is sent out, for example, forward and upward from the air outlet. When the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out from the outlet, for example, downward and rearward. The operating conditions of the air conditioner that changes the air direction include the temperature of the air sent from the air conditioner, the temperature of the indoor heat exchanger arranged in the indoor unit, the air volume of the air sent from the air conditioner, and the refrigeration cycle. The operating frequency of the compressor to be operated, the current consumption and power consumption of the air conditioner, the air volume of the air taken into the outdoor unit, and the like are included. In addition, indoor air conditioning conditions in which the wind direction is variable include indoor temperature, indoor humidity, indoor air purification based on odor components and dust amounts, indoor ion concentration, and the like.

  Further, the present invention is characterized in that, in the air conditioner having the above configuration, the wind direction of the conditioned air is further varied between a substantially downward direction and a rear lower direction based on the operating condition of the air conditioner or the indoor air condition. According to this configuration, when the heating operation is started, conditioned air is sent from the air outlet, for example, forward and upward. When the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out from the outlet, for example, downward and rearward. Further, when the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out from the air outlet, for example, substantially downward.

  In the air conditioner having the above-described configuration, the present invention is characterized in that the air direction of the conditioned air is further varied between a substantially downward direction and a front lower direction based on the operating condition of the air conditioner or the indoor air condition. According to this configuration, when the heating operation is started, conditioned air is sent from the air outlet, for example, forward and upward. When the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out from the air outlet, for example, substantially downward. Further, when the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out from the outlet, for example, forward and downward.

  According to the present invention, in the air conditioner having the above configuration, when the living room is smaller than a predetermined size, the air direction of the conditioned air is changed to a substantially horizontal direction or a front upper direction, and a substantially right direction or a rear lower direction. When it is wider than a predetermined size, it is characterized in that the wind direction of the conditioned air is varied in a substantially horizontal direction or front upper direction and front lower direction.

  According to this configuration, when the living room is small, conditioned air is sent out from the air outlet, for example, forward and upward. When the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out from the outlet, for example, downward and rearward. When the living room is large, conditioned air is sent out from the air outlet, for example, forward and upward. When the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out forward and downward from the outlet.

  In the air conditioner having the above-described configuration, the present invention is characterized in that the wind speed of the conditioned air is varied based on the operating condition of the air conditioner or the indoor air condition. According to this configuration, when the heating operation is started, conditioned air is sent from the air outlet, for example, forward and upward. When the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out from the outlet, for example, downward and rearward. Further, when the operating condition of the air conditioner or the indoor air condition changes, for example, the wind speed is increased from the outlet and the conditioned air is sent downward and downward.

  In the air conditioner having the above-described configuration, the present invention is characterized in that the air volume of the conditioned air is varied based on the operating condition of the air conditioner or the indoor air condition. According to this configuration, when the heating operation is started, conditioned air is sent from the air outlet, for example, forward and upward. When the operating condition of the air conditioner or the indoor air condition changes, the conditioned air is sent out from the outlet, for example, downward and rearward. Further, when the operating condition of the air conditioner or the indoor air condition changes, for example, the air volume is reduced from the outlet and the conditioned air is sent downward and downward.

  According to the present invention, in the air conditioner having the above configuration, when the operating condition of the air conditioner or the indoor air condition is the first condition, the wind direction of the conditioned air is set to a substantially horizontal direction or a front upper direction. When the operating condition or indoor air conditioning condition is the second condition, the wind direction of the conditioned air is made substantially downward or backward and downward, and the operating condition of the air conditioner or indoor air condition is the third condition. It is characterized in that the wind direction of the air is set in front of the second condition.

  In the air conditioner having the above-described configuration, the first condition includes a case where the blowing temperature is lower than a predetermined value, and the second condition is a rising state in which the blowing temperature is higher than the predetermined value and the room temperature is increased. The third condition is characterized by comprising a stable state where the room temperature is stable.

  According to this configuration, when the blowing temperature is low, the conditioned air is sent out substantially in the horizontal direction or forward and upward. For example, when the air temperature reaches a predetermined temperature at which the air temperature does not feel cold even when the air blows directly, and the room temperature rises rapidly, the conditioned air is sent substantially downward or rearward. Assuming that the room temperature is stable within a predetermined temperature with respect to the set temperature, the conditioned air is sent, for example, slightly downward toward the front.

  Further, the present invention is characterized in that the air conditioner having the above-described configuration is provided with prohibiting means for prohibiting air from being sent rearwardly downward or substantially downward.

  According to the present invention, since the wind direction of the conditioned air is varied based on the operating condition of the air conditioner or the indoor air condition, the warm air does not continue to hit the user, and the comfort by preventing the user's discomfort Can be improved. In addition, high-temperature air is sent from the air outlet toward the rear and downward in the rising state where the room temperature rises, and air conditioning is performed quickly, and it is easy to change the wind direction, wind speed, and air volume in a stable state where the room temperature is stable. Comfort can be improved.

  Further, according to the present invention, the temperature of the air delivered from the outlet, the temperature of the indoor heat exchanger, the operating frequency of the compressor, the current consumption or power consumption of the air conditioner, or the air sucked from the outdoor unit suction port Since the wind direction is varied based on the operating condition of the air conditioner such as the air volume, for example, conditioned air having a high blowing temperature can be sent further rearward to reduce high-temperature air hitting the user. Therefore, the user's discomfort can be further reduced.

  Further, according to the present invention, since the air direction is varied based on the air volume sent from the air outlet, for example, when the air volume is large, the air can be sent efficiently to the rear and downward to prevent discomfort to the user. it can. In addition, when the air volume is small, the conditioned air is sent forward to prevent the reach distance from being shortened, and it is possible to heat the corners of the room.

  Further, according to the present invention, the wind direction, the wind speed, and the air volume are varied based on the indoor air condition such as the indoor temperature, the indoor humidity, the indoor ion concentration, the indoor cleanliness degree, etc. When the difference between the degree of harmony set by the user is large, the conditioned air is sent further backward to greatly agitate the air in the entire room, and the degree of air harmony can be quickly increased to every corner of the room. . Thereby, the air of the whole room can be harmonized in a short time. On the other hand, when the difference between the degree of harmony in the room and the degree of harmony set by the user is small, it is possible to perform air conditioning efficiently by sending out in the downward direction and reducing unnecessary backward sending.

  In addition, according to the present invention, since the prohibiting means for prohibiting the air from being sent rearwardly downward or substantially downward is provided, when there is a wall or an obstacle under the indoor unit, the air sent downward is rebounded. Therefore, it is possible to prevent an increase in the short circuit due to the intake from the suction port, and it is possible to perform the wind direction control according to the use situation.

  Also, according to the present invention, the conditioned air wind direction is set to be substantially directly below or rearward and lower in the rising state where the room temperature rapidly rises, and the conditioned air is directed forward from the rising state in the stable state. The conditioned air can reach far.

  Further, according to the present invention, when the blowing temperature is lower than a predetermined value, the air direction of the conditioned air is set to a substantially horizontal direction or the front upper direction, so that the air conditioner that does not feel cold because the low temperature air does not directly hit the user. Can be obtained.

  Embodiments of the present invention will be described below with reference to the drawings. For convenience of explanation, in each of the following embodiments, the same parts as those in the conventional example shown in FIGS. 28 and 29 are given the same reference numerals.

<First Embodiment>
FIG. 1 is a side sectional view showing the air conditioner of the first embodiment (showing a D section in FIG. 8 to be described later). 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 4 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 engaging the claw portion with a mounting plate (not shown) attached to the side wall W1 of the living room. An air outlet 5 is provided in the gap between the lower end portion of the front panel 3 and the lower end portion of the cabinet 2. The air outlet 5 is formed in a substantially rectangular shape extending in the width direction of the indoor unit 1 and is provided facing the front lower side.

  Inside the indoor unit 1, a blower path 6 that communicates from the suction port 4 to the blowout port 5 is formed. A blower fan 7 that sends out air is disposed in the blower path 6. For example, a cross flow fan or the like can be used as the blower fan 7. The ventilation path 6 has a front guide portion 6 a that guides the air sent out by the blower fan 7 forward and downward. The front guide 6a is provided with a vertical louver 12 that can change the blowing angle in the left-right direction. Moreover, the upper wall of the ventilation path 6 is an inclined surface that is inclined upward as it goes forward from the end of the front guide portion 6a.

  The air outlet 5 is provided with air direction variable portions 113a, 113b, and 113c that are rotatably supported. The air direction variable portion 113c extends from the lower wall of the front guide portion 6a and is pivotally supported on the cabinet 2 by a rotating shaft 113f that rotates by driving of a drive motor (not shown). The air direction variable portion 113a is disposed at the upper portion of the air outlet 5 and is rotatably supported by a rotation shaft 113d that is rotated by a drive motor (not shown).

  The air direction variable portion 113b is disposed at the lower portion of the air outlet 5 and is rotatably supported by a rotation shaft 113e that is rotated by a drive motor (not shown). The wind direction variable portions 113a and 113b rotate independently by driving of each drive motor, and change the direction to change the wind direction.

  The wind direction variable portions 113b and 113c are curved in cross section, and one surface is formed as a convex curved surface and the other surface is formed as a concave curved surface. One side (left side in the figure) of the wind direction variable part 113a is substantially flat, and the other side (right side in the figure) is formed in a gently convex curved surface, and is supported by a rotating shaft 113d in the vicinity of the substantially central part. ing. In addition, the state of the figure has shown the case where conditioned air is sent out from the blower outlet 5 toward back downward so that a detail may mention later.

  An air filter 8 that collects and removes dust contained in the air sucked from the suction port 4 is provided at a position facing the front panel 3. An indoor heat exchanger 9 is disposed between the blower fan 7 and the air filter 8 in the blower path 6. The indoor heat exchanger 9 is connected to a compressor 62 (see FIG. 2) arranged outdoors, and the refrigeration cycle is operated by driving the compressor 62.

  The indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling by operating the refrigeration cycle. During heating, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature. A temperature sensor 61 that detects the temperature of the sucked air is provided between the indoor heat exchanger 9 and the air filter 8, and a control unit that controls the driving of the air conditioner is provided on the side of the indoor unit 1. 60 (see FIG. 3) is provided. A drain pan 10 that collects condensation that has fallen from the indoor heat exchanger 9 during cooling or dehumidification is provided in the lower part before and after the indoor heat exchanger 9.

An ion generator 30 is installed in the front drain pan 10 with the discharge surface 30 a facing the air blowing path 6. Ions generated from the discharge surface 30 a of the ion generator 30 are discharged into the air blowing path 6 and blown out into the room from the blowout port 5. The ion generator 30 has a discharge electrode, and generates positive ions mainly composed of H ⁺ (H ₂ O) _n when the applied voltage is positive by corona discharge, and mainly O ₂ ⁻ (H when negative. ₂ O) Negative ions composed of _m are generated (n and m are integers).

H ⁺ (H ₂ O) _n and O ₂ ⁻ (H ₂ O) _m aggregate on the surface of the microorganism and surround airborne microorganisms such as microorganisms in the air. Then, as shown in the formulas (1) to (3), active species [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) are generated on the surface of the floating bacteria by collision, and floated. Sterilize by destroying bacteria.

H ⁺ (H ₂ O) _n + O ₂ ⁻ (H ₂ O) _m → OH + _1/2 O ₂ + (n + m) H ₂ O (1)
H ⁺ (H ₂ O) _n + H ⁺ (H ₂ O) _{n ′} + O ₂ ⁻ (H ₂ O) _m + O ₂ ⁻ (H ₂ O) _{m ′}
→ 2 OH + O ₂ + (n + n ′ + m + m ′) H ₂ O (2)
H ⁺ (H ₂ O) _n + H ⁺ (H ₂ O) _{n ′} + O ₂ ⁻ (H ₂ O) _m + O ₂ ⁻ (H ₂ O) _{m ′}
→ H ₂ O ₂ + O ₂ + (n + n ′ + m + m ′) H ₂ O (3)

  Depending on the purpose of use, the ion generator 30 generates a mode in which more negative ions are generated than in positive ions, a mode in which more positive ions are generated than in negative ions, and both positive ions and negative ions have substantially the same amount. The mode to be generated at a rate can be switched.

  FIG. 2 is a circuit diagram showing a refrigeration cycle of the air conditioner. An outdoor unit (not shown) connected to the indoor unit 1 of the air conditioner is provided with a compressor 62, a four-way switching valve 63, an outdoor heat exchanger 64, a blower fan 65, and a throttle mechanism 66. One end of the compressor 62 is connected to an outdoor heat exchanger 64 through a four-way switching valve 63 by a refrigerant pipe 67. The other end of the compressor 62 is connected to the indoor heat exchanger 9 via a refrigerant pipe 67 via a four-way switching valve 63. The outdoor heat exchanger 64 and the indoor heat exchanger 9 are connected via a throttle mechanism 66 by a refrigerant pipe 67.

  When the cooling operation is started, the compressor 62 is driven and the blower fan 7 is rotated. Thus, a refrigeration cycle 68 is formed in which the refrigerant returns to the compressor 62 through the compressor 62, the four-way switching valve 63, the outdoor heat exchanger 64, the throttle mechanism 66, the indoor heat exchanger 9, and the four-way switching valve 63.

  By operating the refrigeration cycle 68, 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 63 is switched and the blower fan 65 rotates, and the refrigerant flows in the opposite direction to the above. That is, a refrigeration cycle 68 that returns to the compressor 62 through the compressor 62, the four-way switching valve 63, the indoor heat exchanger 9, the throttle mechanism 66, the outdoor heat exchanger 64, and the four-way switching valve 63 is formed. Thereby, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature.

  FIG. 3 is a block diagram showing the configuration of the air conditioner. The control unit 60 is composed of a microcomputer, and based on the operation of the user and the input of the temperature sensor 61 that detects the temperature of the intake air, the blower fan 7, the compressor 62, the blower fan 65, the vertical louver 12, and the wind direction variable unit 113a. , 113b, 113c, and drive control of the ion generator 30 are performed.

  FIG. 4 is a block diagram illustrating a detailed configuration of the control unit 60. The control unit 60 includes a CPU 71 that performs various arithmetic processes, and an input circuit 72 that receives an input signal and an output circuit 73 that outputs a calculation result of the CPU 71 are connected to the CPU 71. Further, a memory 74 is provided for storing a calculation program of the CPU 71 and temporarily storing calculation results.

  The output of the temperature sensor 61 is input to the input circuit 72. A drive motor (not shown) for driving the rotation shafts 113d, 113e, 113f (see FIG. 1) of the wind direction variable portions 113a, 113b, 113c is connected to the output circuit 73.

  Further, an output of a light receiving unit (not shown) that receives an operation signal of a remote controller (not shown) is input to the control unit 60, and the wind direction changing unit 113a regardless of the detection result of the temperature sensor 61 by a predetermined operation by the remote controller. 113b and 113c can be driven. That is, the control of the control unit 60 based on the temperature sensor 61 can be prohibited, and the wind direction variable units 113a, 113b, 113c can be arranged in any direction.

  In the air conditioner having the above configuration, when the heating operation is started, the refrigeration cycle is operated, and the blower fan 65 of the outdoor unit (not shown) is rotationally driven. As a result, outside air is sucked into the outdoor unit (not shown). The refrigerant having absorbed heat by the outdoor heat exchanger 64 flows to the indoor heat exchanger 9 and heats the indoor heat exchanger 9.

  When a certain period of time has elapsed since the start of the heating operation or when the indoor heat exchanger 9 is heated to a predetermined temperature, the blower fan 7 of the indoor unit 1 is rotationally driven by the control unit 60, and the first airflow control is performed. Is called. Thus, air is sucked into the indoor unit 1 from the suction port 4, and dust contained in the air is removed by the air filter 8. The air taken into the indoor unit 1 is heated by exchanging heat with the indoor heat exchanger 9, and is sent to the room with the vertical louver 12 and the airflow direction changing portions 113a, 113b, 113c restricted in the horizontal and vertical directions. Is done.

  In the first airflow control, the air direction variable portions 113a, 113b, 113c are arranged in the state shown in FIG. 5 or FIG. 6, and the conditioned air is sent out forward or substantially horizontally at a wind speed of about 3 to 4 m / sec, for example. That is, as shown in FIG. 5, the airflow direction changing portion 113a is arranged such that the plane side faces rearward and upward along the airflow flowing through the front guide portion 6a. The air direction varying portion 113b is arranged in parallel with the airflow flowing through the front guide portion 6a and is convex downward by dividing the airflow into two. The air direction varying portion 113 c is disposed below the cabinet 2 by retracting from the airflow sent from the blowout port 5.

  As a result, the conditioned air flowing through the front guide portion 6a is curved and sent out upward and forward as shown by the arrow E from the blowout port 5. Also, as shown in FIG. 6, when the direction of the air direction varying portion 113 a is made horizontal, conditioned air is sent out from the blowout port 5 in a substantially horizontal direction as indicated by an arrow D.

  The conditioned air sent from the outlet 5 in the upper front direction or substantially in the horizontal direction reaches the ceiling of the living room. Then, the wall surface W2 facing the indoor unit 1 from the ceiling surface, the floor surface F, and the wall surface W1 on the indoor unit 1 side are circulated sequentially through the Coanda effect. Therefore, it is possible to prevent the user from feeling cold because the conditioned air that is not sufficiently heated at the start of the heating operation does not directly hit the user by the first airflow control.

  The second airflow control is performed by the control unit 60 when a certain time has elapsed after the heating operation is started or when the indoor heat exchanger 9 is sufficiently heated. In the second airflow control, as shown in FIG. 1 described above, the air direction variable portions 113a, 113b, and 113c are arranged, and conditioned air is sent out from the outlet 5 to the rear lower side, for example, at a wind speed of about 6 to 7 m / sec.

  In other words, the air direction variable portion 113a is disposed at a position where one end of the airflow direction changing portion 113a is brought into contact with the upper wall of the air passage 6 and the upper wall of the air passage 6 is extended by driving the driving motor. The other end portion of the wind direction varying portion 113a is arranged downward so as to contact the rotating shaft 113e. The wind direction variable portion 113b is arranged with the tip facing downward and rearward so that the air flow path 6 side is concave. The air direction variable portion 113c is arranged with the tip directed downward and rearward so that the air flow path 6 side is convex.

  As a result, the forward direction of the airflow flowing through the front guide portion 6a is blocked by the airflow direction variable portions 113a and 113b, and the airflow is curved and guided rearward and downward. FIG. 7 shows the static pressure distribution of the blowing path 6 at this time. On the inner surface side of the wind direction variable portions 113a and 113b, a high static pressure portion 90 that is in contact with the wind direction variable portions 113a and 113b and is higher than the static pressure of the front guide portion 6a is formed.

  The position of the wind direction variable portions 113a, 113b, 113c is adjusted according to the detection result of a static pressure detection sensor (not shown) that detects the static pressure of the blower path 6, and the isostatic line 90a of the high static pressure portion 90 is moved to the wind direction variable portions 113a, 113b. It is formed along the airflow that circulates. That is, the isobaric line 90a of the high static pressure portion 90 is formed substantially parallel to the line connecting the end of the front guide portion 6a and the end of the airflow direction changing portion 113b, and the airflow is substantially parallel to the isobaric line 90a in the vicinity of the high static pressure portion 90. It has become.

  For this reason, the high-pressure part 90 acts as a hydrodynamic wall surface, and the air direction variable parts 113a, 113b, 113c smoothly change the sending direction of the conditioned air to curve the airflow. And since the constant pressure line 90a of the high static pressure part 90 which contact | connects the wind direction variable parts 113a and 113b does not cross the mainstream streamline of the airflow which curves and distribute | circulates the ventilation path 6, the pressure loss concerning this airflow is reduced significantly. be able to.

  As a result, a large amount of conditioned air can be sent rearward and downward despite a large change in wind direction. In the high static pressure section 90, a low-speed and low-energy air stream separated from the main stream circulates along the wind direction variable sections 113a and 113b, so that the influence on the pressure loss is reduced.

  The wind direction variable portions 113a, 113b, 113c are varied using a static pressure detection sensor so that the static pressure in the vicinity of the wind direction variable portions 113a, 113b becomes a predetermined value, and the positions of the wind direction variable portions 113a, 113b, 113c are stored in a database. May be stored as As a result, data corresponding to the operating conditions can be taken from the database, and the wind direction variable portions 113a, 113b, 113c can be arranged at predetermined positions, and the static pressure detection sensor can be omitted.

  In addition, the main flow of conditioned air that faces the wind direction variable portions 113a, 113b, and 113c circulates in a space surrounded by the high static pressure portion 90 and the lower wall surface of the air blowing path 6. That is, the wall surface of the flow path is formed by the high static pressure portion 90. Therefore, since the airflow is not in contact with the wind direction variable portions 113a and 113b, loss due to viscosity is reduced, and the air volume can be further increased.

  Moreover, the high static pressure part 90 comprises the wall surface of a flow path, the flow path of conditioned air is restrict | squeezed by the high static pressure part 90, a nozzle shape is formed, and a flow path area becomes narrower than the front guide part 6a. For this reason, a high-energy fluid is delivered from the outlet 5 by the action of the nozzle. As a result, the wind speed of the airflow adjacent to the high static pressure portion 90 does not change significantly, and the static pressure fluctuation of the airflow is suppressed, so that the airflow flows more smoothly and pressure loss can be further reduced. Therefore, the air volume of the conditioned air sent from the air conditioner can be further increased.

  Further, the flow passage area narrowed by the high static pressure portion 90 and narrowed at one end is expanded again on the downstream side of the air direction variable portions 113a, 113b, 113c. Thereby, as the flow path goes downstream, the cross-sectional area temporarily decreases to form a minimum cross-sectional area portion (hereinafter referred to as “throat portion”). For this reason, what is called a diffuser is comprised by the expanded flow path, and it can assist the static pressure rise of the ventilation fan 7, and can increase an air volume further. Moreover, as shown in FIG. 6, since the high static pressure part 90 does not occur in the throat part of the flow path and pressure loss does not occur, by bending the flow path at that position, a curved part that does not cause pressure loss. Can be formed.

  In addition, since the contact part of the upper wall of the front guide part 6a and the wind direction variable part 113a is not formed with a smooth curved surface, the vortex 25 is generated in the high static pressure part 90 and the blowing efficiency is slightly reduced. However, it is possible to improve the blowing efficiency by suppressing an increase in pressure loss as compared with the conventional case.

  Further, the air direction varying portion 113b is arranged so as to intersect with a virtual plane 98 obtained by extending the lower wall of the front guide portion 6a to the outside of the air outlet 5. Thereby, the lower end part of the wind direction variable part 113a is distribute | arranged below the virtual surface 98, and airflow is reliably guide | induced to back lower direction. Therefore, airflow is not sent out in an unintended direction, and a highly reliable air conditioner can be obtained.

  FIG. 8 shows the behavior of the airflow in the room R at the time of rearward and downward blowing. The conditioned air descends along the side wall W1 and returns to the suction port 4 along the floor surface F, the side wall W2 opposite to the side wall W1, and the ceiling wall S as indicated by an arrow C. As a result, it is possible to prevent the warmed air that has been sent out from being rolled up and prevent a reduction in heating efficiency due to the short circuit, and it is possible to sufficiently warm the lower part of the living room R and improve comfort. Therefore, the room R is in a rising state where the room temperature rises quickly and rises.

  In the first airflow control, when the air sent from the indoor unit 1 directly hits, the temperature is low enough for the user to feel cold. For this reason, also when performing 1st airflow control, although room temperature rises, the raise speed | rate is slow. In the standing state, even if the air sent from the indoor unit 1 directly hits, the temperature reaches a temperature at which the user does not feel cold, and the room temperature rises quickly from a state where the room temperature is lower than the set temperature.

  FIG. 9 shows the indoor temperature distribution during the second airflow control. The set temperature of the room temperature is 28 ° C., and the size of the living room R is 6 tatami mats (height 2400 mm, width 3600 mm, depth 2400 mm). Similar to FIGS. 30 and 31 described above, the measurement points are measured at a central cross section of the room R indicated by a one-dot chain line D, with a total of 48 points of 6 points and 8 points in the height direction and the horizontal direction at intervals of 600 mm. .

  As shown in the figure, since the conditioned air having a high temperature reaches the feet through the floor surface F, the temperature of the central portion of the floor surface of the living room R is 33 ° C to 35 ° C. In the conventional example shown in FIGS. 30 and 31 described above, the temperature is about 31 ° C. to 32 ° C. (FIG. 30) and 23 ° C. (FIG. 31) at the same position. This can greatly reduce comfort.

  Moreover, since the conditioned air sent from the indoor unit 1 does not roll up due to the Coanda effect, a short circuit does not occur. For this reason, there is no warm air accumulation E (see FIG. 30) in which the surroundings of the indoor unit 1 are excessively warmed, and the temperature in the vicinity of the suction port 4 is about the same as the set temperature of 28 ° C. Therefore, it is possible to improve the air conditioning efficiency and to easily determine whether the room is sufficiently warm.

  Next, when the second air flow control is performed and a certain time has passed, or the temperature sensor 61 detects that the temperature difference between the temperature of the air taken in from the suction port 4 and the set temperature is small The third airflow control is performed by the control unit 60. In the third airflow control, the operating frequency of the compressor 62 is lowered and the wind direction variable portions 113a, 113b, 113c are arranged as shown in FIG. 10, and the wind speed is about 6-7 m / sec, for example, as indicated by the arrow C ′. Conditioned air is sent downward and rearward.

  That is, the wind direction variable portion 113c is rotated in the K direction in FIG. 10 to reduce the area of the blowout port 5, and the rotational speed of the blower fan 7 is adjusted to maintain the wind speed. As a result, the air flow rate gradually decreases to about 70% at the same wind speed with respect to the second airflow control. At this time, the conditioned air (warm air) sent rearward and downward from the indoor unit 1 continues to descend along the side wall W1 without being rolled up by the Coanda effect even if the blast volume decreases, and is poured directly into the living space. Without reaching the floor along the floor F.

  Therefore, comfort is improved without any discomfort due to direct wind on the user. Furthermore, since the wind speed is maintained even if the air flow rate decreases, warm air reliably reaches every corner of the room R such as the boundary region between the side wall W2 and the floor surface F. Thereby, the room R is in a stable state where the room temperature is stable within a predetermined temperature with respect to the set temperature.

  In the third airflow control, when the air volume is reduced and the air velocity is reduced, the warm air may not reach every corner of the room R such as the boundary region between the side wall W2 and the floor surface F. It is more desirable to maintain

  If the room temperature of the living room R is lower than the set temperature due to the opening of the window of the living room R during the third air flow control, the temporary interruption of the heating operation due to the defrosting of the outdoor unit, or other reasons, the air conditioner The second airflow control is performed by shifting to the rising state. Then, the third air flow control is performed when a certain time has elapsed or when it is detected that the temperature difference between the room temperature and the set temperature has decreased. This operation is repeated to perform the heating operation.

  In some cases, the user may want to directly take warm air immediately after the start of the heating operation or when the room temperature of the living room R does not reach the desired temperature. In addition, there is a case where it is desired to keep the room temperature at a desired temperature without directly taking the warm air because the user feels uncomfortable when the warm air is directly taken after the room temperature of the living room R reaches the desired temperature.

  In such a case, after the conditioned air is sent forward and downward as shown in the conventional example of FIG. 28 described above, the conditioned air may be sent downward and downward as shown in FIGS. That is, in the rising state, conditioned air is sent out forward and downward as shown in FIG. Thereby, warm air can be directly exposed to a user. And in a stable state, conditioned air is sent out back and downward. Thereby, the user can maintain the temperature of the room at a desired temperature without directly taking warm air. Therefore, the convenience for the user can be greatly improved.

  Further, the arrangement of the vertical louver 12 and the wind direction variable portions 113a, 113b, 113c can be changed by the operation of a remote controller (not shown) by the user. Thereby, the wind direction of conditioned air can be arbitrarily selected by the user.

  In the second air flow control, instead of the state of FIG. 1 described above, as shown in FIG. Thereby, the wind direction variable part 113a, 113b is distribute | arranged along the front panel 3, and the beauty | look of the indoor unit 1 improves. At this time, since the high static pressure part 90 is formed by being surrounded by the upper wall of the air flow path 6 inclined forward and upward and the wind direction variable parts 113a and 113b, the vortex 25 developed in the high static pressure part 90 becomes large.

  For this reason, compared with the case of FIG. 1, although ventilation efficiency falls a little, the increase in pressure loss can be suppressed rather than before. Similarly, in the third airflow control, the airflow direction changing portion 113a may be arranged along the front panel 3 instead of the state shown in FIG.

  In the second and third airflow control, when the living room R in which the indoor unit 1 is installed is wide, different control is performed by the control unit 60. Switching of control can be performed by a changeover switch or the like provided in the indoor unit 1 or the remote controller.

  When the living room R is wide and the distance between the side wall W1 to which the indoor unit 1 is attached and the side wall W2 facing the side wall W1 is relatively large, when the conditioned air is sent rearward and downward from the outlet 5, the side wall W2 and the floor surface F Warm air may not reach every corner of the living room R such as the boundary region. For this reason, in the second airflow control in the rising state, the airflow direction variable portions 113a, 113b, and 113c are arranged as shown in FIG.

  That is, the wind direction variable portions 113b and 113c are arranged in front of the state shown in FIG. And as shown by the arrow B, conditioned air is sent out from the blower outlet 5 in the substantially downward direction at a wind speed of about 7 to 8 m / sec, for example.

  In the stable state, in the third airflow control, the wind direction variable portions 113a, 113b, 113c are arranged as shown in FIG. That is, the area of the air outlet 5 is reduced by rotating the air direction varying portion 113c in the K direction from the state shown in FIG. Accordingly, the rotational speed of the blower fan 7 is adjusted. Thereby, for example, the air volume becomes about 70% with respect to the second air flow control, and the conditioned air is sent out from the blowout port 5 substantially downward as indicated by the arrow B ′ at a wind speed of about 7 to 8 m / sec. Thereby, warm air can be made to reach every corner of living room R even if living room R is large.

  Further, in the second and third airflow control, as shown in FIGS. 14 and 15, respectively, the wind direction variable portions 113a, 113b, and 113c may be arranged. That is, in the second airflow control in the rising state, the lower ends of the airflow direction varying portions 113a, 113b, and 113c are arranged in front of FIG. 12 in FIG. And conditioned air is sent out from the blower outlet 5 to the front lower part of the front a little from just below as shown by arrow A2 at a wind speed of about 6-7 m / sec.

  In the third airflow control in the stable state, the air direction variable portion 113a rotates in the J direction and the air direction variable portion 113c rotates in the K direction from the state of FIG. 14 in FIG. Accordingly, the rotational speed of the blower fan 7 is adjusted. Thereby, for example, the air volume becomes about 70% with respect to the second air flow control, and the conditioned air is sent from the outlet 5 downward and forward as indicated by the arrow A2 'at a wind speed of about 7 to 8 m / sec. Thereby, warm air can be made to reach every corner of living room R even if living room R is large.

  Furthermore, in the second and third airflow control, the wind speed may be increased by disposing the wind direction variable portions 113a, 113b, and 113c as shown in FIGS. That is, in the rising state, the air direction variable portions 113a, 113b, and 113c are set as shown in FIG. 1, and conditioned air is sent out from the outlet 5 downward and downward, for example, at a wind speed of about 9 to 10 m / sec. .

  In the stable state, the air direction variable portions 113a, 113b, 113c are set as shown in FIG. 10, and the conditioned air is sent out from the blowout port 5 downward and downward, for example, at a wind speed of about 9 to 10 m / sec. Thereby, warm air can be made to reach every corner of living room R even if living room R is large. Therefore, when the room R is large, the same effect as when the room is small can be obtained by setting the wind direction forward or increasing the wind speed.

Second Embodiment
Next, FIG. 16 is a side sectional view showing the indoor unit 1 of the air conditioner of the second embodiment. The same parts as those in the first embodiment shown in FIGS. 1 to 15 are denoted by the same reference numerals. In the present embodiment, wind direction variable portions 114a and 114b are provided instead of the wind direction variable portions 113a, 113b, and 113c of the first embodiment. Other parts are the same as those in the first embodiment.

  The air direction variable portions 114a and 114b are disposed at the outlet 5 and are formed of flat plates having both surfaces. The rotating shafts 114c and 114d rotatably support the air direction variable portions 114a and 114b, and are rotated by a drive motor (not shown). As a result, the wind direction variable portions 114a and 114b are made of wind direction plates that change the direction of the wind direction by driving the drive motor. Further, the rotation shaft 114c is provided at the approximate center of the wind direction variable portion 114a, and the rotation shaft 114d is provided at the end of the wind direction variable portion 114b. In addition, the figure has shown the arrangement | positioning in the case of sending conditioned air back and downward.

  In the air conditioner having the above configuration, when the heating operation is started, the refrigeration cycle is operated, and the blower fan 65 of the outdoor unit (not shown) is rotationally driven. As a result, outside air is sucked into the outdoor unit (not shown). The refrigerant having absorbed heat by the outdoor heat exchanger 64 flows to the indoor heat exchanger 9 and heats the indoor heat exchanger 9.

  When a certain period of time has elapsed since the start of the heating operation, or when the indoor heat exchanger 9 is heated to a predetermined temperature, the blower fan 7 of the indoor unit 1 is rotationally driven by the control unit 60, and the first airflow control is performed. Done. Thus, air is sucked into the indoor unit 1 from the suction port 4, and dust contained in the air is removed by the air filter 8. The air taken into the indoor unit 1 is heated by exchanging heat with the indoor heat exchanger 9, and is sent into the room with the vertical louver 12 and the wind direction variable portions 114a and 114b regulated in the horizontal and vertical directions. .

  In the first airflow control, the wind direction variable portions 114a and 114b are arranged in the state shown in FIG. 17 or FIG. 18, and the conditioned air is sent out forward or substantially horizontally at a wind speed of about 3 to 4 m / sec. That is, as shown in FIG. 17, the wind direction varying portion 114 a has a front end disposed above the rear end, and is substantially parallel to the upper wall of the air flow path 6 inclined upward in the vicinity of the air outlet 5. The wind direction variable portion 114b is arranged such that the end on the shaft side is lower forward than the end on the open side.

  As a result, the conditioned air flowing through the front guide portion 6a is curved and sent out upward and forward as shown by the arrow E from the blowout port 5. Also, as shown in FIG. 18, when the direction of the wind direction varying portion 114 a is made horizontal, conditioned air is sent from the blowout port 5 in a substantially horizontal direction as indicated by an arrow D.

  The conditioned air sent from the outlet 5 in the upper front direction or substantially in the horizontal direction reaches the ceiling of the living room. Then, the wall surface W2 facing the indoor unit 1 from the ceiling surface, the floor surface F, and the wall surface W1 on the indoor unit 1 side are circulated sequentially through the Coanda effect. Therefore, it is possible to prevent the user from feeling cold because the conditioned air that is not sufficiently heated at the start of the heating operation does not directly hit the user by the first airflow control.

  The second airflow control is performed by the control unit 60 when a certain time has passed since the heating operation was started or when the indoor heat exchanger 9 is sufficiently heated. In the second airflow control, as shown in FIG. 16 described above, the air direction variable portions 114a and 114b are arranged, and the conditioned air is sent out from the air outlet 5 to the lower rear side at a wind speed of about 6 to 7 m / sec, for example.

  That is, the wind direction variable portion 114a is arranged so that one end thereof is close to the upper wall of the air blowing path 6 and extends the upper wall downward by driving the drive motor. The other end portion of the wind direction varying portion 114a is disposed close to the rotating shaft 114d and directed downward. The tip of the wind direction varying portion 114b is arranged with the rearward downward direction.

  As a result, the forward direction of the airflow flowing through the front guide portion 6a is closed by the airflow direction variable portions 114a and 114b, and the high static pressure portion 90 in contact with the airflow direction variable portions 114a and 114b is formed. The isobaric line 90a (see FIG. 7) of the high static pressure part 90 is formed along the flow direction of the conditioned air facing the wind direction variable parts 114a and 114b as in the first embodiment. For this reason, the high static pressure part 90 becomes a hydrodynamic wall surface, and the conditioned air is sent out from the outlet 5 downward and rearward with the delivery direction smoothly changed.

  Therefore, similarly to the first embodiment, it is possible to increase the temperature of the feet in the standing state to reduce the user's discomfort and greatly improve the comfort. In addition, the air conditioning efficiency can be improved, and it can be easily determined whether the room is sufficiently warm.

  Further, the flow path is narrowed by the high static pressure portion 90, and the flow path is expanded again on the downstream side. Furthermore, the wind direction variable part 114b is arrange | positioned so that the virtual wall 98 which extended the lower wall of the front guide part 6a to the outer side from the blower outlet 5 may be crossed. Therefore, the same effect as the first embodiment can be obtained.

  Next, when a certain period of time has passed since the heating operation was started, or when the temperature sensor 61 detects that the temperature difference between the temperature of the air taken in from the suction port 4 and the set temperature has decreased. The control unit 60 performs third airflow control. As shown in FIG. 19, in the third airflow control, the wind direction variable portions 114a and 114b are arranged, and the air flow rate of the sending fan 7 is lowered to harmonize substantially downward as indicated by the arrow B at a wind speed of about 5 to 6 m / sec. Air is delivered.

  In other words, the wind direction varying portion 114b is arranged in the front direction with respect to the front of FIG. 16 and is directed substantially downward, and the air flow rate and the wind speed are reduced. As a result, comfort is improved without discomfort caused by direct wind hitting the user in a stable state. Even if the air flow rate decreases, the conditioned air is sent from the indoor unit 1 slightly forward (substantially downward) from the rising state, so that warm air reaches a position away from the indoor unit 1. In the first embodiment, since the air flow rate can be reduced and the air flow rate can be reduced by reducing the air flow rate in the third airflow control in a stable state, the reach of warm air is increased, which is more desirable.

  If the room temperature of the living room R is lower than the set temperature due to the opening of the window of the living room R during the third air flow control, the temporary interruption of the heating operation due to the defrosting of the outdoor unit, or other reasons, the air conditioner The second airflow control is performed by shifting to the room temperature startup state. Then, the third air flow control is performed when a predetermined time has elapsed or when it is detected that the temperature difference between the room temperature and the set temperature has decreased. This operation is repeated to perform the heating operation.

  Further, the arrangement of the vertical louver 12 and the wind direction variable portions 114a and 114b can be changed by the operation of a remote controller (not shown) by the user. Thereby, the wind direction of conditioned air can be arbitrarily selected by the user.

  In the second airflow control, the airflow direction changing portion 114a may be arranged along the front panel 3 as shown in FIG. 20 instead of the state of FIG. Thereby, the beauty of the indoor unit 1 is improved. At this time, since the high static pressure part 90 is formed by being surrounded by the upper wall of the air flow path 6 inclined forward and upward and the wind direction variable parts 113a and 113b, the vortex 25 developed in the high static pressure part 90 becomes large.

  For this reason, compared with the case of FIG. 16, although ventilation efficiency falls a little, the increase in a pressure loss can be suppressed rather than before. Similarly, in the third airflow control, the airflow direction changing portion 114a may be arranged along the front panel 3 instead of the state shown in FIG.

  In the second and third airflow control, when the living room R in which the indoor unit 1 is installed is wide, different control is performed by the control unit 60. Switching of control can be performed by a changeover switch or the like provided in the indoor unit 1 or the remote controller.

  When the living room R is wide and the distance between the side wall W1 to which the indoor unit 1 is attached and the side wall W2 facing the side wall W1 is relatively large, when the conditioned air is sent rearward and downward from the outlet 5, the side wall W2 and the floor surface F Warm air may not reach every corner of the living room R such as the boundary region. For this reason, in the second airflow control in the rising state, the airflow direction varying portions 114a and 114b are arranged as shown in FIG.

  In other words, the wind direction variable portion 114b is arranged in front of the state shown in FIG. Then, as shown by an arrow B at a wind speed of about 7 to 8 m / sec, for example, conditioned air is sent from the air outlet 5 substantially downward.

  In the stable state, in the third airflow control, the airflow direction varying portions 114a and 114b are arranged as shown in FIG. In other words, the wind direction variable portion 114b is arranged in front of the state shown in FIG. Then, as shown by an arrow B at a wind speed of about 6 to 7 m / sec, for example, the conditioned air is sent out from the blowout port 5 to the front lower side slightly below the front. Thereby, warm air can be made to reach every corner of living room R even if living room R is large.

<Third Embodiment>
Next, FIG. 22 is a side sectional view showing the indoor unit 1 of the air conditioner of the third embodiment. The same parts as those in the second embodiment shown in FIGS. 16 to 21 are denoted by the same reference numerals. In the present embodiment, wind direction variable portions 115a and 115b are provided in place of the wind direction variable portions 114a and 114b of the first embodiment.

  In addition, a rotation speed detection unit (not shown) that detects the rotation speed of the blower fan 7 in the indoor unit 1 and detects the air volume of the conditioned air sent from the blower outlet 5 is provided. In FIG. 4 described above, the output of the rotation speed detection unit is input to the control unit 60, and the wind direction variable units 115a and 115b are driven based on the detection result of the rotation speed detection unit. Other parts are the same as those of the second embodiment.

  The air direction variable portions 115a and 115b are arranged at the outlet 5 and are formed of flat plates having both surfaces. The rotation shafts 115c and 115d rotatably support the air direction variable portions 115a and 115b, and are rotated by a drive motor (not shown). As a result, the wind direction variable portions 115a and 115b are composed of wind direction plates that change the direction of the wind direction by driving the drive motor. Further, the rotation shaft 115c is provided at the approximate center of the wind direction variable portion 115a, and the rotation shaft 115d is provided at a position separated from the wind direction variable portion 115b at the approximate center of the wind direction variable portion 115b by a predetermined amount. In addition, the figure has shown the arrangement | positioning in the case of sending conditioned air back and downward.

  In the air conditioner having the above configuration, when the heating operation is started, the refrigeration cycle is operated, and the blower fan 65 of the outdoor unit (not shown) is rotationally driven. As a result, outside air is sucked into the outdoor unit (not shown). The refrigerant having absorbed heat by the outdoor heat exchanger 64 flows to the indoor heat exchanger 9 and heats the indoor heat exchanger 9.

  When a certain period of time has elapsed since the start of the heating operation, or when the indoor heat exchanger 9 is heated to a predetermined temperature, the blower fan 7 of the indoor unit 1 is rotationally driven by the control unit 60, and the first airflow control is performed. Done. Thus, air is sucked into the indoor unit 1 from the suction port 4, and dust contained in the air is removed by the air filter 8. The air taken into the indoor unit 1 is heated by exchanging heat with the indoor heat exchanger 9, and is sent out indoors with the vertical louver 12 and the wind direction variable portions 115a and 115b restricted in the horizontal and vertical directions. .

  In the first airflow control, the rotation direction of the blower fan 7 is set to, for example, 600 rpm, and the wind direction variable units 115a and 115b are arranged in the state of FIG. Then, the conditioned air is sent out at a forward speed or in a substantially horizontal direction at a wind speed of about 3 to 4 m / sec. That is, as shown in FIG. 23, the wind direction varying portion 115 a is arranged so that the front end is located above the rear end, and is substantially parallel to the upper wall of the air passage 6 that is inclined upward in the vicinity of the outlet 5. The wind direction variable portion 115b is arranged so that the outer end portion is lower forward than the inner end portion.

  As a result, the conditioned air flowing through the front guide portion 6a is curved and sent out upward and forward as shown by the arrow E from the blowout port 5. Also, as shown in FIG. 24, when the direction of the wind direction variable portion 115 a is made horizontal, conditioned air is sent out from the blowout port 5 in a substantially horizontal direction as indicated by an arrow D.

  The conditioned air sent from the outlet 5 in the upper front direction or substantially in the horizontal direction reaches the ceiling of the living room. Then, the wall surface W2 facing the indoor unit 1 from the ceiling surface, the floor surface F, and the wall surface W1 on the indoor unit 1 side are circulated sequentially through the Coanda effect. Therefore, it is possible to prevent the user from feeling cold because the conditioned air that is not sufficiently heated at the start of the heating operation does not directly hit the user by the first airflow control.

  The second airflow control is performed by the control unit 60 when a certain time has passed since the heating operation was started or when the indoor heat exchanger 9 is sufficiently heated. In the second airflow control, when the rotation speed of the blower fan 7 is set to 1200 rpm, for example, the airflow direction variable sections 115a and 115b are arranged in the state of FIG. Then, conditioned air is sent out rearward and downward at a wind speed of about 6 to 7 m / sec.

  In other words, the wind direction variable portion 115a is arranged so that one end abuts against the upper wall of the air blowing path 6 by driving the drive motor and extends the upper wall downward. The tip of the wind direction varying portion 115b is arranged so that the tip is substantially directly downward or rearward and downward.

  As a result, the forward direction of the airflow flowing through the front guide portion 6a is blocked by the wind direction variable portions 115a and 115b, and the high static pressure portion 90 in contact with the wind direction variable portions 115a and 115b is formed. The isobaric line 90a (see FIG. 7) of the high static pressure part 90 is formed along the flow direction of the conditioned air facing the wind direction variable parts 115a and 115b as in the first and second embodiments. For this reason, the high static pressure part 90 becomes a hydrodynamic wall surface, and the conditioned air is sent out from the outlet 5 downward and rearward with the delivery direction smoothly changed.

  Therefore, as in the first and second embodiments, it is possible to raise the temperature of the feet in the standing state to reduce the user's discomfort and greatly improve the comfort. In addition, the air conditioning efficiency can be improved, and it can be easily determined whether the room is sufficiently warm.

  Further, the flow path is narrowed by the high static pressure portion 90, and the flow path is expanded again on the downstream side. Furthermore, the wind direction variable part 115b is arrange | positioned so that the virtual wall 98 which extended the lower wall of the front guide part 6a outside from the blower outlet 5 may be crossed. Therefore, the same effects as those of the first and second embodiments can be obtained.

  Next, when a certain period of time has passed since the heating operation was started, or when the temperature sensor 61 detects that the temperature difference between the temperature of the air taken in from the suction port 4 and the set temperature has decreased. The control unit 60 performs third airflow control. In the third airflow control, when the rotational speed of the blower fan 7 is set to, for example, 900 rpm, the wind direction variable sections 115a and 115b are arranged in the state of FIG. Then, conditioned air is sent out in a direction substantially directly below as indicated by an arrow B at a wind speed of about 5 to 6 m / sec.

  In other words, by reducing the rotational speed of the blower fan 7, the wind direction variable portion 115b has its front end disposed more forward than in the case of FIG. 22, and the front end is directed substantially downward or slightly forward. As a result, comfort is improved without discomfort caused by direct wind hitting the user in a stable state. Even if the air flow rate decreases, the conditioned air is sent from the indoor unit 1 slightly forward (substantially downward) from the rising state, so that warm air reaches a position away from the indoor unit 1.

  If the room temperature of the living room R is lower than the set temperature due to the opening of the window of the living room R during the third air flow control, the temporary interruption of the heating operation due to the defrosting of the outdoor unit, or other reasons, the air conditioner The second airflow control is performed by shifting to the room temperature startup state. Then, the third air flow control is performed when a predetermined time has elapsed or when it is detected that the temperature difference between the room temperature and the set temperature has decreased. This operation is repeated to perform the heating operation.

  Further, the arrangement of the vertical louver 12 and the wind direction variable portions 115a and 115b can be changed by the operation of a remote controller (not shown) by the user. Thereby, the wind direction of conditioned air can be arbitrarily selected by the user.

  In the second and third airflow control, when the living room R in which the indoor unit 1 is installed is wide, different control is performed by the control unit 60. Switching of control can be performed by a changeover switch or the like provided in the indoor unit 1 or the remote controller.

  When the living room R is wide and the distance between the side wall W1 to which the indoor unit 1 is attached and the side wall W2 facing the side wall W1 is relatively large, when the conditioned air is sent rearward and downward from the outlet 5, the side wall W2 and the floor surface F Warm air may not reach every corner of the living room R such as the boundary region. For this reason, in the second airflow control in the rising state, the wind direction variable portions 115a and 115b are arranged as shown in FIG.

  That is, when the rotational speed of the blower fan 7 reaches, for example, 1200 rpm, the wind direction variable unit 115b is arranged in front of the state of FIG. And conditioned air is sent out from the blower outlet 5 in the substantially downward direction as indicated by an arrow B at a wind speed of about 7 to 8 m / sec.

  In the stable state, the wind direction variable portions 115a and 115b are arranged as shown in FIG. 26 in the third airflow control. That is, when the rotational speed of the blower fan 7 reaches, for example, 900 rpm, the wind direction variable unit 115b is disposed forward of the state of FIG. Then, as shown by an arrow B at a wind speed of about 6 to 7 m / sec, for example, the conditioned air is sent out from the blowout port 5 to the front lower side slightly below the front. Thereby, warm air can be made to reach every corner of living room R even if living room R is large.

  In the first and second embodiments, a similar rotation speed detection unit may be provided, and the wind direction, wind speed, and air volume may be varied based on the detection result of the rotation speed detection unit.

<Fourth embodiment>
Next, a fourth embodiment will be described. In this embodiment, a frequency detector (not shown) is provided in place of the rotational speed detector in the air conditioner of the third embodiment. The frequency detection unit detects the operating frequency of the compressor 62 (see FIG. 2). In FIG. 4 described above, the output of the frequency detection unit is input to the control unit 60, and the wind direction variable units 115a and 115b are driven based on the detection result of the frequency detection unit. Other parts are the same as those of the third embodiment.

  Thereby, arrangement | positioning of the wind direction variable parts 115a and 115b can be varied according to the operating frequency of the compressor 62. FIG. In the second airflow control in the rising state, the operation frequency is increased, and when the operation frequency becomes, for example, 70 Hz or more, the wind direction variable units 115a and 115b are arranged in the state shown in FIG. Further, in the third airflow control in the stable state, the operation frequency is lowered, and when the operation frequency becomes 40 Hz to 70 Hz, for example, the wind direction variable units 115a and 115b are arranged in the state shown in FIG. The

  During heating, when the operating frequency of the compressor 62 is high, the heating capacity is improved and the temperature of the indoor heat exchanger 9 is increased. When the operating frequency of the compressor 62 is low, the heating capacity is lowered and the temperature of the indoor heat exchanger 9 is lowered. Accordingly, in the same manner as described above, a part of the conditioned air having a high blowing temperature is sent backward. Thereby, the high temperature air which hits a user can be decreased, and a user's discomfort can be reduced more. In addition, you may provide a frequency detection part in 1st, 2nd embodiment.

<Fifth Embodiment>
Next, a fifth embodiment will be described. In the air conditioner of the third embodiment, the present embodiment is provided with a blowout temperature detection unit (not shown) in the blower path 6 that includes a temperature sensor that detects the blowout temperature of the conditioned air instead of the rotation speed detection unit. ing. Further, in FIG. 4 described above, the output of the blowing temperature detection unit is input to the control unit 60 instead of the output of the temperature sensor 61, and the wind direction variable units 115a and 115b are driven based on the detection result of the blowing temperature detection unit. Yes. Other parts are the same as those of the third embodiment.

  Thereby, the setting of the wind direction variable part 115a, 115b can be varied according to the blowing temperature of conditioned air. When the temperature of the indoor heat exchanger is not increased and the blowing temperature is less than 36 ° C., the first air flow control is performed. In the second airflow control in the rising state, the blowing temperature rises by increasing the operating frequency of the compressor, and when the blowing temperature becomes 45 ° C. or higher, the airflow direction detecting units 115a and 115b are detected by the blowing temperature detection unit, for example, as shown in FIG. Arranged in the state shown.

  In the third airflow control in the stable state, when the operation frequency of the compressor 62 is lowered and the blowout temperature is changed from 36 ° C. to 45 ° C., the airflow direction variable portions 115a and 115b are detected by the blowout temperature detection unit, for example, shown in FIG. Placed in a state. Accordingly, in the same manner as described above, a part of the conditioned air having a high blowing temperature is sent backward. Thereby, the high temperature air which hits a user can be decreased, and a user's discomfort can be reduced more. In addition, you may provide the blowing temperature detection part in 1st, 2nd embodiment.

<Sixth Embodiment>
Next, a sixth embodiment will be described. In the present embodiment, a heat exchanger temperature detection unit (not shown) including a temperature sensor that detects the temperature of the indoor heat exchanger 9 is provided in place of the rotation speed detection unit in the air conditioner of the third embodiment. ing. Further, in FIG. 4 described above, the output of the heat exchanger temperature detection unit is input to the control unit 60, and the wind direction variable units 115a and 115b are driven based on the detection result of the heat exchanger temperature detection unit. Other parts are the same as those of the third embodiment.

  Thereby, the setting of the wind direction variable part 115a, 115b can be varied according to the temperature of the indoor heat exchanger 9. For example, the first airflow control is performed when the temperature of the indoor heat exchanger 9 is less than 40 ° C. In the second airflow control in the rising state, the temperature of the indoor heat exchanger 9 rises due to an increase in the operating frequency of the compressor 62, and when the temperature becomes 50 ° C. or higher, the air direction variable portions 115a and 115b are detected by the heat exchanger temperature detection unit. They are arranged in the state shown in FIG.

  In the third airflow control in the stable state, when the operating frequency of the compressor 62 is lowered and the temperature of the indoor heat exchanger 9 is changed from 40 ° C. to 50 ° C., the air direction variable portions 115a and 115b are detected by the heat exchanger temperature detection unit. For example, they are arranged in the state shown in FIG. Accordingly, in the same manner as described above, a part of the conditioned air having a high blowing temperature is sent backward. Thereby, the high temperature air which hits a user can be decreased, and a user's discomfort can be reduced more. In addition, you may provide a heat exchanger temperature detection part in 1st, 2nd embodiment.

<Seventh embodiment>
Next, a seventh embodiment will be described. In this embodiment, a current consumption detector is provided in place of the rotation speed detector in the air conditioner of the third embodiment. The consumption current detection unit is configured by a current transformer or the like that generates a secondary voltage proportional to the current value, and detects consumption current or consumption power during operation of the air conditioner. In FIG. 4 described above, the output of the consumption current detection unit is input to the control unit 60, and the wind direction variable units 115a and 115b are driven based on the detection result of the consumption current detection unit. Other parts are the same as those of the third embodiment.

  Thereby, the setting of the wind direction variable part 115a, 115b can be varied according to the consumption current of the air conditioner. In the second airflow control in the rising state, when the operating frequency of the compressor 62 increases and the current consumption or power consumption of the air conditioner becomes, for example, 12 A or 1200 W or more, the wind direction variable units 115a and 115b are detected by the current consumption detection unit. For example, they are arranged in the state shown in FIG.

  In the third airflow control in the stable state, when the operating frequency of the compressor 62 is lowered and the current consumption or power consumption of the air conditioner becomes, for example, 7A to 12A or 700W to 1200W, the wind direction variable unit 115a is detected by the consumption current detection unit. 115b are arranged, for example, in the state shown in FIG.

  When the current consumption or power consumption during operation of the air conditioner is large, the frequency of the compressor 62 (see FIG. 2) is considered high, and the temperature of the indoor heat exchanger 9 is high during heating. When the current consumption or power consumption during operation of the air conditioner is small, it is considered that the operation frequency of the compressor 62 is low, and the temperature of the indoor heat exchanger 9 is low during heating. Accordingly, in the same manner as described above, a part of the conditioned air having a high blowing temperature is sent backward. Thereby, the high temperature air which hits a user can be decreased, and a user's discomfort can be reduced more. In addition, you may provide a consumption current detection part in 1st, 2nd embodiment.

<Eighth Embodiment>
Next, an eighth embodiment will be described. This embodiment is provided with an outdoor rotational speed detection unit in place of the rotational speed detection unit with respect to the air conditioner of the third embodiment. The outdoor rotational speed detection unit detects the rotational speed of a blower fan 65 (see FIG. 2) provided in the outdoor unit, and detects the amount of air sucked from a suction port (not shown) of the outdoor unit. In FIG. 4 described above, the output of the outdoor rotation speed detection unit is input to the control unit 60, and the wind direction variable units 115a and 115b are driven based on the detection result of the outdoor rotation speed detection unit. Other parts are the same as those of the third embodiment.

  Thereby, the setting of the wind direction variable parts 115a and 115b can be changed according to the rotation speed of the outdoor air blowing fan 65. In the second airflow control, for example, when the rotational speed of the outdoor blower fan 65 reaches 1000 rpm or more, the wind direction variable sections 115a and 115b are arranged in the state shown in FIG. In the third airflow control, for example, when the rotational speed of the outdoor blower fan 65 reaches 500 to 1000 rpm, the wind direction variable portions 115a and 115b are arranged in the state shown in FIG.

  At the time of heating, when the operating frequency of the compressor 62 (see FIG. 2) is high, the air volume or the rotational speed of the blower fan 65 of the outdoor unit is also set large, the heating capacity is improved, and the temperature of the indoor heat exchanger 9 is increased. When the operating frequency of the compressor 62 is low, the air volume or the rotational speed of the blower fan 65 of the outdoor unit is also set small, the heating capacity is lowered, and the temperature of the indoor heat exchanger 9 is lowered. Accordingly, in the same manner as described above, a part of the conditioned air having a high blowing temperature is sent backward. Thereby, the high temperature air which hits a user can be decreased, and a user's discomfort can be reduced more. In addition, you may provide an outdoor rotation speed detection part in 1st, 2nd embodiment.

<Ninth Embodiment>
Next, a ninth embodiment will be described. In the present embodiment, a humidity sensor is provided in place of the rotation speed detector with respect to the air conditioner of the third embodiment. The humidity sensor is provided between the indoor heat exchanger 9 and the air filter 8 and detects the humidity of the intake air. In FIG. 4 described above, the output of the humidity sensor is input to the control unit 60 instead of the output of the temperature sensor 61, and the wind direction variable units 115a and 115b are driven based on the detection result of the humidity sensor. Other parts are the same as those of the third embodiment.

  Thereby, the setting of the wind direction variable parts 115a and 115b can be varied according to the humidity of the intake air. For example, the second airflow control is performed when the difference between the relative humidity of the intake air and the set humidity becomes 20% or more. When the difference between the relative humidity of the intake air and the set humidity is less than 20%, the third airflow control is performed.

  Therefore, when the difference between the relative humidity of the intake air and the set humidity is large, the conditioned air is sent to the rear to greatly agitate the air in the entire room, and the humidity balance can be quickly adjusted to every corner of the room. On the other hand, when the difference between the relative humidity of the intake air and the set humidity is small, it is possible to perform air conditioning efficiently by sending the air substantially downward and reducing unnecessary backward sending. In the first and second embodiments, a humidity sensor may be provided.

<Tenth Embodiment>
Next, a tenth embodiment will be described. In this embodiment, an ion sensor (not shown) is provided in place of the rotation speed detection unit in the air conditioner of the third embodiment. The ion sensor is provided between the indoor heat exchanger 9 and the air filter 8 and detects the ion concentration of the intake air. In FIG. 4 described above, the output of the ion sensor is input to the control unit 60 instead of the output of the temperature sensor 61, and the wind direction variable units 115a and 115b are driven based on the detection result of the ion sensor. Other parts are the same as those of the third embodiment.

Thereby, the setting of the wind direction variable parts 115a and 115b can be varied according to the ion concentration of the intake air. For example, the second airflow control is performed when the difference between the ion concentration of the intake air and the set ion concentration is 2000 / cm ³ or more. When the difference between the ion concentration of the intake air and the set ion concentration is less than 2000 / cm ^3, the third airflow control is performed.

  Therefore, when the difference between the ion concentration of the intake air and the set ion concentration is large, the conditioned air containing a large amount of ions is sent further rearward to greatly agitate the air in the entire room. Can quickly balance the ions. On the other hand, when the difference between the ion concentration of the intake air and the set ion concentration is small, the air can be efficiently conditioned by sending it directly downward to reduce unnecessary backward delivery. An ion sensor may be provided in the first and second embodiments.

<Eleventh embodiment>
Next, an eleventh embodiment will be described. The present embodiment is provided with a dust sensor (purification degree detection means) instead of the rotation speed detector in the air conditioner of the third embodiment. The dust sensor is provided between the indoor heat exchanger 9 and the air filter 8, and detects the amount of dust in the intake air to detect the degree of purification of indoor air. In FIG. 4 described above, the output of the dust sensor is input to the control unit 60 instead of the output of the temperature sensor 61, and the wind direction variable units 115a and 115b are driven based on the detection result of the dust sensor. Other parts are the same as those of the third embodiment.

  Thereby, the setting of the wind direction variable parts 115a and 115b can be varied according to the amount of dust contained in the intake air. For example, when the amount of dust in the intake air is larger than a predetermined amount, the second airflow control is performed. When the amount of dust in the intake air is less than a predetermined amount, the third airflow control is performed.

  Therefore, when the amount of dust contained in the intake air is large, the conditioned air is sent further rearward to greatly agitate the air in the entire room, and the indoor dust is taken into the indoor unit, and the air filter 8 promptly removes the air. Since the cleaning can be performed, the air in the entire room can be cleaned in a short time. On the other hand, when the amount of dust contained in the intake air is small, the air can be efficiently conditioned by sending it substantially downward and reducing unnecessary sending back. If a HEPA filter or an electrostatic precipitator is used instead of the air filter 8 (see FIG. 1), a greater air cleaning effect can be obtained. A dust sensor may be provided in the first and second embodiments.

<Twelfth embodiment>
Next, a twelfth embodiment will be described. In the present embodiment, an odor sensor (purity detection means) is provided in place of the rotation speed detector in the air conditioner of the third embodiment. The odor sensor is provided between the indoor heat exchanger 9 and the air filter 8 and detects the content of the odor component of the intake air to detect the degree of purification of the indoor air. In FIG. 4 described above, the output of the odor sensor is input to the control unit 60 instead of the output of the temperature sensor 61, and the wind direction variable units 115a and 115b are driven based on the detection result of the odor sensor. Other parts are the same as those of the third embodiment.

  Thereby, the setting of wind direction variable part 115a, 115b can be varied according to content of the odor component in intake air. For example, when the odor component of the intake air is larger than a predetermined amount, the second airflow control is performed. When the odor component of the intake air is less than a predetermined amount, the third airflow control is performed.

  Therefore, when the content of odorous components in the intake air is large, the conditioned air is sent further rearward to greatly agitate the air in the entire room, and the dust in the room is taken into the indoor unit and is quickly squeezed by the air filter 8. Since the air can be cleaned, the air in the entire room can be cleaned in a short time. On the other hand, when the content of the odorous component in the intake air is small, it is possible to perform air conditioning efficiently by sending it substantially directly downward to reduce unnecessary backward delivery. In the first and second embodiments, an odor sensor may be provided.

<13th Embodiment>
In the present embodiment, as shown in FIG. 27, the indoor unit 1 according to the first embodiment is attached to a position in contact with the ceiling wall S of the corner L where two adjacent side walls W3 and W4 intersect each other as shown in FIG. Composed. Even in this case, the same effect as described above can be obtained. In the second to twelfth embodiments, the indoor unit may be a corner air conditioner.

  As described above, the air conditioner according to the present invention has been described with reference to the first to thirteenth embodiments. However, the present invention is not limited to the above-described embodiments, and appropriate modifications can be made without departing from the spirit of the present invention. In addition, it can be implemented.

These are side surface sectional drawings which show the state at the time of 2nd airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are the circuit diagrams which show the refrigerating cycle of the air conditioner of 1st Embodiment of this invention. These are block diagrams which show the structure of the air conditioner of 1st Embodiment of this invention. These are block diagrams which show the structure of the control part of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the state at the time of the 1st airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 1st airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are the contour maps which show the static pressure distribution of the blower outlet vicinity at the time of the back downward blowing state of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are the perspective views which show the behavior of the airflow in a living room in the state of the back downward blowing of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are figures which show the temperature distribution of the cross section of the center part of a room in the state of the back downward blowing of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the state at the time of the 3rd airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 2nd airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 2nd airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 3rd airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 2nd airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of 3rd airflow control of the indoor unit of the air conditioner of 1st Embodiment of this invention. These are side surface sectional drawings which show the state at the time of the 2nd airflow control of the indoor unit of the air conditioner of 2nd Embodiment of this invention. These are side surface sectional drawings which show the state at the time of the 1st airflow control of the indoor unit of the air conditioner of 2nd Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 1st airflow control of the indoor unit of the air conditioner of 2nd Embodiment of this invention. These are side surface sectional drawings which show the state at the time of the 3rd airflow control of the indoor unit of the air conditioner of 2nd Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 2nd airflow control of the indoor unit of the air conditioner of 2nd Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 3rd airflow control of the indoor unit of the air conditioner of 2nd Embodiment of this invention. These are side surface sectional views which show the state at the time of 2nd airflow control of the indoor unit of the air conditioner of 3rd Embodiment of this invention. These are side surface sectional drawings which show the state at the time of the 1st airflow control of the indoor unit of the air conditioner of 3rd Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 1st airflow control of the indoor unit of the air conditioner of 3rd Embodiment of this invention. These are side surface sectional drawings which show the state at the time of the 3rd airflow control of the indoor unit of the air conditioner of 3rd Embodiment of this invention. These are side surface sectional drawings which show the other state at the time of the 3rd airflow control of the indoor unit of the air conditioner of 3rd Embodiment of this invention. These are the perspective views which show the behavior of the airflow in a living room in the state of the back downward blowing of the indoor unit of the air conditioner of 13th Embodiment to this invention. These are perspective views which show the airflow at the time of the air volume "strong" in the living room by the conventional air conditioner. These are perspective views which show the airflow at the time of the air volume "weak" in the living room by the conventional air conditioner. These are figures which show the temperature distribution at the time of the air volume "strong" of the room center part cross section by the conventional air conditioner. These are figures which show temperature distribution at the time of the air volume "weak" of the room center part cross section by another conventional air conditioner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Cabinet 3 Front panel 4 Suction port 5 Outlet 6 Blower path 7 Blower fan 8 Air filter 9 Indoor heat exchanger 10 Drain pan 12 Vertical louver 25 Vortex 60 Control part 61 Temperature sensor 62 Compressor 63 Four-way switching valve 64 Outdoor Heat exchanger 65 Blower fan 66 Throttle mechanism 67 Refrigerant piping 68 Refrigeration cycle 71 CPU
72 Input circuit 73 Output circuit 74 Memory 90 High static pressure part 98 Virtual plane 113a, 113b, 113c, 114a, 114b, 115a, 115b Wind direction variable part

Claims (32)

  In an air conditioner that is installed on a wall surface in the room and harmonizes the air taken from the air inlet and sends out the conditioned air from the air outlet while changing the direction of the air, the operating condition of the air conditioner or the indoor air An air conditioner characterized in that the air direction of the conditioned air can be varied in a substantially horizontal direction or a front upper direction and a substantially directly downward direction or a rear lower direction based on a harmonious state.   2. The air conditioner according to claim 1, wherein the air direction of the conditioned air is further varied in a substantially downward direction and a rear lower direction based on an operating condition of the air conditioner or an indoor air condition.   2. The air conditioner according to claim 1, wherein the air direction of the conditioned air is further varied between a substantially downward direction and a front lower direction based on an operating condition of the air conditioner or an indoor air condition.   When the living room is narrower than a predetermined size, the air direction of the conditioned air can be changed to a substantially horizontal direction or a front upper direction and a substantially right direction or a rear lower direction, and when the living room is larger than the predetermined size, the air direction of the conditioned air is changed. The air conditioner according to claim 1, wherein the air conditioner is variable in a substantially horizontal direction or front upper direction and front lower direction.   The air conditioner according to any one of claims 1 to 4, wherein the wind speed of the conditioned air is varied based on an operating condition of the air conditioner or an indoor air condition.   The air conditioner according to any one of claims 1 to 4, wherein the air volume of the conditioned air is varied based on an operating condition of the air conditioner or an indoor air condition.   When the operating condition of the air conditioner or the indoor air condition is the first condition, the wind direction of the conditioned air is set to the substantially horizontal direction or the front upper direction, and the operating condition of the air conditioner or the indoor air condition is the second condition. In this case, the wind direction of the conditioned air is set substantially downward or rearwardly downward, and when the operating condition of the air conditioner or the indoor air condition is the third condition, the wind direction of the conditioned air is more forward than in the second condition. The air conditioner according to claim 1, wherein the air conditioner is used.   The first condition consists of a case where the blowing temperature is lower than a predetermined value, the second condition consists of a rising state where the blowing temperature is higher than the predetermined value and the room temperature rises, and the third condition is that the room temperature is stable. The air conditioner according to claim 7, wherein the air conditioner is in a stable state.   The air conditioner according to any one of claims 1 to 7, further comprising an ion generation device that generates ions, wherein the ions are sent into the room together with the conditioned air from the outlet.   The air conditioner according to claim 9, further comprising an ion sensor that detects an ion concentration in a room, wherein an air condition in the room in which a wind direction is changed includes an ion concentration detected by the ion sensor.   The air conditioner according to any one of claims 1 to 5, wherein the operating condition of the air conditioner that varies the wind direction is composed of an amount of air sent from the air outlet.   Provided with a rotation speed detection unit that detects the rotation speed of a blower that takes in indoor air from the suction port and sends it out from the blower outlet, and the operation status of the air conditioner that changes the wind direction is based on the detection result of the rotation speed detection unit The air conditioner according to claim 11, wherein the air conditioner is formed.   A heat exchanger temperature detector that detects the temperature of the indoor heat exchanger that harmonizes the air temperature by exchanging heat with the air taken in is provided, and the operating condition of the air conditioner that changes the air direction is the heat exchanger temperature detector. It consists of a detection result, The air conditioner in any one of Claims 1-7 characterized by the above-mentioned.   The blower temperature detection part which detects the temperature of the air sent out from the said blower outlet is provided, The driving | running state of the air conditioner which changes a wind direction consists of the detection result of the said blown temperature detection part. The air conditioner according to claim 7.   The frequency detection part which detects the operating frequency of the compressor which drives a refrigerating cycle is provided, and the operating condition of the air conditioner which changes a wind direction consists of a detection result of the frequency detection part. The air conditioner according to any one of 7.   The power consumption detection part which detects the power consumption or consumption current of an air conditioner is provided, and the driving | running state of the air conditioner which changes a wind direction consists of the detection result of the said consumption current detection part. Item 8. The air conditioner according to any one of Items 7.   An outdoor unit that takes in outside air and exchanges heat is provided, and an operating condition of the air conditioner that changes the air direction is composed of an air volume of air taken into the outdoor unit. The air conditioner described.   The outdoor unit has an outdoor blower for taking in outside air, and is provided with an outdoor rotation number detection unit that detects the rotation number of the outdoor blower, and the operation status of the air conditioner that changes the wind direction is determined from the detection result of the outdoor rotation number detection unit. The air conditioner according to claim 17, wherein the air conditioner is configured.   The temperature sensor which detects the temperature of the air taken in from the said suction inlet is provided, The indoor air conditioning condition which changes a wind direction consists of the detection result of the said temperature sensor. The air conditioner described in Crab.   The air conditioner according to any one of claims 1 to 7, wherein an indoor air condition in which the wind direction is variable is composed of a difference between a detection result of the temperature sensor and a set temperature.   The air conditioner according to any one of claims 1 to 7, wherein the indoor air condition in which the air direction is varied is a time after the start of the heating operation.   The air conditioner according to any one of claims 1 to 7, further comprising: a humidity sensor that detects humidity in the room, wherein the air condition of the room in which the air direction is varied is a detection result of the humidity sensor. .   8. A purification degree detecting means for detecting a degree of purification of indoor air, wherein an indoor air conditioning condition in which the wind direction is variable is composed of a detection result of the purification degree detection means. The air conditioner described in Crab.   24. The air according to claim 23, wherein the purification degree detection means includes an odor sensor that detects an odor component contained in indoor air, or a dust sensor that detects an amount of dust contained in indoor air. Harmony machine.   The air conditioner according to any one of claims 1 to 24, further comprising a prohibiting unit that prohibits air from being sent rearwardly downward or substantially downward.   In an air conditioner that performs heating operation by conditioning the air taken in from the air inlet attached to the wall surface of the room and sending the conditioned air from the air outlet while changing the air direction, the air temperature is higher than a predetermined value and the room temperature is An air conditioner characterized in that the wind direction of the conditioned air is set to be substantially directly below or rearward and lower in the rising state where it rises, and the wind direction of the conditioned air is set to the front of the rising state in the stable state where the room temperature is stable. .   27. The air conditioner according to claim 26, wherein when the blowing temperature is lower than the predetermined value, the air direction of the conditioned air is set to a substantially horizontal direction or a front upper direction.   28. The air conditioner according to claim 26 or claim 27, wherein when the room temperature departs from the stable state by a predetermined temperature relative to a set temperature, the air direction is the same as that in the rising state.   In an air conditioning method in which heating is performed by conditioning the air taken in through a suction port attached to a room wall and sending the conditioned air in a variable direction from the air outlet, the operating condition of the air conditioner or the indoor air An air conditioning method, wherein the wind direction of the conditioned air can be varied between a substantially horizontal direction or a front upper direction and a substantially directly downward direction or a rear lower direction based on a harmonizing condition.   30. The air conditioning method according to claim 29, wherein the wind direction of the conditioned air is further varied between a substantially downward direction and a rearward downward direction based on an operating condition of the air conditioner or an indoor air condition.   30. The air conditioning method according to claim 29, wherein the wind direction of the conditioned air is further varied between a substantially downward direction and a front lower direction based on an operating condition of the air conditioner or an indoor air condition.     When the living room is narrower than a predetermined size, the air direction of the conditioned air can be changed to a substantially horizontal direction or a front upper direction and a substantially right direction or a rear lower direction, and when the living room is larger than the predetermined size, the air direction of the conditioned air is changed. 30. The air conditioning method according to claim 29, wherein the air conditioning method is variable in a substantially horizontal direction or an upper front direction and a lower front direction.

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