JP2014173780A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner for actualizing the start of efficient heating operation without giving a sense of chill to a user in a living space, by performing adequate air flow control for the start of heating operation.SOLUTION: An air conditioner for conditioning air in a refrigeration circuit includes: indoor equipment 20 having a main fan 265 for blowing air passing through an indoor heat exchanger 264, and a side fan for blowing air not passing through the indoor heat exchanger 264 to at least one of both sides of the main fan 265; and outdoor equipment 40 having a compressor 43, an outdoor heat exchanger 44, and an outdoor fan 46. It further includes: indoor equipment control means for controlling the operation of the main fan 265 and the side fan; and an indoor heat exchanger temperature sensor 64 for detecting the temperature of the indoor heat exchanger 265. The indoor equipment control means stops the operation of the side fan 266 during a time from when starting the heating operation to when the indoor heat exchanger temperature sensor 64 detects that the temperature of the indoor heat exchanger 264 reaches a predetermined temperature.

Description

  The present invention relates to an air conditioner that controls airflows blown from a plurality of air outlets.

  In a conventional air conditioner, air that has passed through a heat exchanger that is long in the left-right direction is blown by a cross flow fan, and the wind direction plate and the left-right wind direction plate are provided at the outlet in order to change the wind direction up, down, left and right. Is provided.

  In recent air conditioners, the temperature of the indoor heat exchanger is detected at the start of heating operation, and the operation of the indoor fan is stopped until the detected temperature reaches a predetermined temperature (for example, Patent Document 1).

Utility Model Registration No. 307426

  The air conditioner of Patent Document 1 blows out the cold air that has passed through the indoor heat exchanger when the indoor heat exchanger at the start of the heating operation is not yet warmed. When the temperature of the indoor heat exchanger reaches a predetermined temperature, the operation of the indoor fan is started. However, it has air outlets that blow out the conditioned air that has passed through the indoor heat exchanger and air outlets that blow out the indoor air that does not pass through the heat exchanger. When considering an air conditioner that efficiently stirs and air-conditions, blow out indoor air that does not pass through the indoor heat exchanger even if the operation of the conditioned air fan that has passed through the indoor heat exchanger is stopped at the start of heating operation This causes a new problem that the user who is in the room where the air conditioner is installed feels chilly.

  The present invention has been made in view of the above, and has started a heating operation in an air conditioner that includes a plurality of air outlets and can blow indoor air that does not pass through a heat exchanger from at least one air outlet. An object of the present invention is to provide an air conditioner that does not make a user in a living space feel chilly.

  In order to achieve the above-described object, an air conditioner of the present invention includes a heat exchanger provided therein, a main fan that blows conditioned air that has passed through an indoor heat exchanger, and at least one of both sides of the main fan. An indoor unit having a side fan that blows indoor air that does not pass through the heat exchanger, a compressor, an outdoor heat exchanger, and an outdoor unit having an outdoor fan, the compressor, the outdoor heat exchange An air conditioner that performs air conditioning by a refrigeration circuit in which the indoor heat exchanger is connected by a refrigerant pipe, and the indoor unit includes an indoor heat exchanger temperature detecting means that detects the temperature of the indoor heat exchanger; An indoor unit control means for controlling the operation of the main fan and the side fan, wherein the indoor unit control means detects the indoor heat exchange detected by the indoor heat exchanger temperature detection means from the start of heating operation. Vessel, characterized in that the stop during the operation of the side fans to reach a predetermined temperature.

  In the air conditioner according to the present invention, the indoor unit further includes a wind direction control unit that controls a wind direction of the air blown by the main fan, and the indoor heat exchanger detected by the indoor heat exchanger temperature detection unit. Until the temperature reaches a temperature at which warm air can be blown out, the indoor unit control means stops the operation of the main fan or, when operating, blows air from the main fan by the wind direction control means. It is characterized by blowing in the horizontal direction.

  According to the air conditioner of the present invention, the main fan that blows indoor air that has passed through the indoor heat exchanger, and the side fan that blows indoor air that does not allow the heat exchanger to pass through at least one of both sides of the main fan. The operation of the side fan is stopped from the start of the heating operation until the temperature of the indoor heat exchanger reaches a predetermined temperature at which warm air can be blown out. For this reason, the air conditioner stops the operation of the side fan that stirs the room air and feels chilly to the user while the indoor heat exchanger and the room air are not sufficiently warm at the start of heating operation. There is an effect that it can be prevented. Further, when the main fan is operated for monitoring the room temperature, the air can be blown in the horizontal direction so as not to apply airflow to the person 72 so as not to feel chill.

FIG. 1 is an external perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a schematic configuration of the indoor unit and the outdoor unit. FIG. 3 is a block diagram schematically showing a control system of the air conditioner. FIG. 4 is a perspective view of the air conditioner showing an air flow state by the main fan from the start of the heating operation until the temperature of the indoor heat exchanger reaches a predetermined temperature. FIG. 5A is a perspective view of the air conditioner illustrating an airflow state in which the main fan and the side fan operate in conjunction with each other after the temperature of the indoor heat exchanger reaches a predetermined temperature from the start of the heating operation. FIG. 5-2 is a view of the left and right side fan airflow angles when the main fan airflow of FIG. FIG. 6 is a flowchart for explaining the operation of the air conditioner according to the embodiment of the present invention.

  Embodiments of an air conditioner according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  FIG. 1 is an external perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention, FIG. 2 is a block diagram showing a schematic configuration of the indoor unit and the outdoor unit, and FIG. 3 is an air conditioner. It is a block diagram which shows roughly the control system of the indoor unit of a machine.

  As shown in FIG. 1, the indoor unit 20 of the air conditioner used in the present embodiment includes a main unit 263 and a left fan unit 261 and a right fan unit 262 on both sides thereof. The main unit 263 of the indoor unit 20 includes a main housing 27. In the main housing 27, the exterior panel 29 covers the housing body 28. A central outlet 30 is formed in the housing body 28. A suction port (not shown) is formed in the upper part of the exterior panel 29. The central outlet 30 opens downward. Such a housing body 28 can be fixed to, for example, an indoor wall surface. In that case, the front end 30a of the center blower outlet 30 is arrange | positioned in the upper position compared with the rear end 30b. As a result, the central outlet 30 is formed in a front-up posture at a predetermined inclination angle α. With such an action of the inclination angle α, the airflow can be blown not only downward from the central blower outlet 30 toward the floor surface but also in parallel (horizontal direction) to the floor surface.

  A pair of front and rear wind direction plates 31a and 31b are disposed at the central outlet 30 as wind direction control means. The up-and-down wind direction plates 31a and 31b can rotate around the horizontal axes 32a and 32b, respectively. Depending on the rotation, the vertical airflow direction plates 31a and 31b can open and close the central outlet 30.

  In addition, a left fan unit 261 and a right fan unit 262 are individually disposed on both side surfaces of the housing body 28. That is, the left fan unit 261 and the right fan unit 262 are disposed outside the side wall of the housing body 28. The left fan unit 261 includes a left side fan housing 331, a left outlet 341 is formed, and a left and right wind direction plate 341a that changes the wind direction of the side fan to the left and right is disposed as a wind direction control unit. The right fan unit 262 includes a right side fan housing 332, a right outlet 342 is formed, and a left and right wind direction plate 342a as a wind direction control unit is disposed. The left blower outlet 341 and the right blower outlet 342 are respectively rotated about the horizontal axis 35 by a drive mechanism (not shown), so that the wind direction of the side fan can be changed up and down as a wind direction control means. The horizontal axis lines 32a and 32b and the horizontal axis line 35 extend in parallel with each other as shown in FIG. The side panel 36 covers the side surfaces of the housing 331 and the housing 332. A side suction port 37 is formed in the side panel 36. As shown in FIG. 1, the side surface suction port 37 is formed by collecting slit-shaped small openings, for example.

  The air conditioner according to the present embodiment includes a remote controller 10 that can perform a driving operation from a remote location by two-way wireless communication with the indoor unit 20 described above.

  The indoor unit and outdoor unit of the air conditioner according to the present embodiment are configured as shown in FIG. An indoor heat exchanger 264 and a main fan 265 are incorporated in the main body unit 263 of the indoor unit 20 described above. The main fan 265 is a cross flow fan, and generates an air flow by rotation. Room air is sucked into the main unit 263 by the action of the main fan 265. The sucked room air passes through the indoor heat exchanger 264 and exchanges heat with the refrigerant, thereby generating cold air or warm air. The cold or warm airflow after passing through the indoor heat exchanger 264 is blown out from the central outlet 30 of the main unit 263 to become a main fan airflow 301. Further, the flow rate of the airflow passing through the indoor heat exchanger 264 is adjusted according to the rotational speed of the cross flow fan. The indoor heat exchanger 264 of this embodiment is provided with an indoor heat exchanger temperature sensor 64 as an indoor heat exchanger temperature detecting means for detecting the temperature of the indoor heat exchanger 264.

  As shown in FIG. 2, the refrigeration circuit 41 of the outdoor unit 40 includes a four-way valve 42, a compressor 43, an outdoor heat exchanger 44, an expansion valve 45, an outdoor fan 46, a refrigerant pipe 50, and the like. For example, when the cooling operation is set in the refrigeration circuit 41, the four-way valve 42 connects the second port 42b and the third port 42c to each other, and connects the first port 42a and the fourth port 42d to each other. Thereby, the high-temperature and high-pressure refrigerant is supplied to the outdoor heat exchanger 44 from the discharge pipe 43 b of the compressor 43. The refrigerant flows through the outdoor heat exchanger 44, the expansion valve 45, and the indoor heat exchanger 264 in order. In the outdoor heat exchanger 44, the heat energy of the refrigerant is released to the outside air. The refrigerant is decompressed to a low pressure by the expansion valve 45 and absorbs heat from the surrounding air in the indoor heat exchanger 264. The cold air thus generated is caused to flow into the indoor space by the function of the main fan 265. The refrigerant that has absorbed heat by the indoor heat exchanger 264 is returned to the compressor 43 via the four-way valve 42.

  When the heating operation is set in the refrigeration circuit 41, the four-way valve 42 connects the second port 42b and the fourth port 42d to each other, and connects the first port 42a and the third port 42c to each other. Thereby, the high-temperature and high-pressure refrigerant is supplied from the discharge pipe 43 a of the compressor 43 to the indoor heat exchanger 264. The refrigerant flows through the indoor heat exchanger 264, the expansion valve 45, and the outdoor heat exchanger 44 in order. In the indoor heat exchanger 264, the heat energy of the refrigerant is released to the surrounding air, and warm air is generated. Warm air is blown into the indoor space by the action of the main fan 265. The refrigerant is decompressed to a low pressure by the expansion valve 45 and absorbs heat from the surrounding air in the outdoor heat exchanger 44. Thereafter, the refrigerant is returned to the compressor 43.

  Further, the left fan unit 261 and the right fan unit 262 of the air conditioner according to the present embodiment are provided independently of the main unit 263. The left fan unit 261 and the right fan unit 262 include a side fan 266 made of a centrifugal blower and a left outlet 341 and a right outlet 342 for blowing out airflow sent from the side fan 266, respectively. Are rotated around the horizontal axis 35 by the driving mechanism described in the above, and the air direction and the air volume of the air blown out from each outlet are individually controlled by the left and right wind direction plates 341a and 342a of the left outlet 341 and the right outlet 342. Is possible. The air blown out from the central outlet 30 is a main fan airflow 301 composed of cold air or warm air passing through the indoor heat exchanger 264. The left side fan airflow 3411 and the right side fan airflow 3421 blown out from the left outlet 341 and the right outlet 342 are airflows in which the room air sucked from the side suction ports 37 is blown out as it is.

  Then, the control system of the air conditioner of a present Example is demonstrated using FIG. The control unit 21 as the indoor unit control means includes a cooling / heating establishment unit 211. The air conditioning establishment unit 211 controls the operation of the refrigeration circuit 41 shown in FIG. According to the control of the air conditioning establishment unit 211, the cooling circuit 41 selectively establishes the cooling operation or the heating operation. The outdoor unit 40 is connected to the air conditioning establishment unit 211. The air conditioning establishment unit 211 controls operations of the compressor 43, the expansion valve 45, and the four-way valve 42 in FIG. In such control, the air conditioning establishment unit 211 supplies control signals to the compressor 43, the expansion valve 45, and the four-way valve 42. For example, in the four-way valve 42, the position of the valve is switched by the action of the control signal.

  The control unit 21 includes a main unit control block 212 and a fan unit control block 213 as wind direction control means. The main unit control block 212 controls the operation of the main unit 263 of FIG. The main unit control block 212 includes a main fan control unit 2121, an up / down air direction plate control unit 2122, and a left / right air direction plate control unit 2123. The main fan control unit 2121 controls the operation of the main fan drive source 22. The main fan drive source 22 controlled by the main fan control unit 2121 executes start and stop of the main fan 265 and control of the rotation speed. The up / down wind direction plate control unit 2122 controls the operation of the up / down wind direction plate drive source 23 of the main unit 263. The up / down air direction plate drive source 23 controlled by the up / down air direction plate control unit 2122 controls the directions of the up / down air direction plates 31a and 31b. The left / right wind direction plate control unit 2123 controls the operation of the left / right wind direction plate drive source 24. The left / right wind direction plate drive source 24 controlled by the left / right wind direction plate control unit 2123 controls the direction of a left / right wind direction plate (not shown).

  The fan unit control block 213 controls operations of the left fan unit 261 and the right fan unit 262. The fan unit control block 213 includes a side fan control unit 2131, a housing posture control unit 2132, and a left / right wind direction plate control unit 2133. The side fan controller 2131 individually controls the operations of the left side fan drive source 2611 and the right side fan drive source 2621. The left side fan drive source 2611 and the right side fan drive source 2621 controlled by the side fan control unit 2131 execute start and stop of the side fan 266 and control of the rotation speed. The chassis posture control unit 2132 controls the operations of the fan chassis drive sources 2612 and 2622 of the left fan unit 261 and the right fan unit 262. The fan housing drive source 2612 controlled by the housing posture control unit 2132 controls the orientation of the left side fan housing 331, and the fan housing drive source 2622 controls the orientation of the right side fan housing 332. The left / right wind direction plate control unit 2133 controls the operation of the left / right wind direction plate drive sources 2613, 2623. The left and right wind direction plate drive sources 2613 and 2623 controlled by the left and right wind direction plate control unit 2133 control the directions of the left and right wind direction plates 341a and 342a.

  Furthermore, a remote control transmission / reception unit 61 for performing bidirectional communication with the remote controller 10 is connected to the control unit 21 and a command signal is supplied wirelessly from the remote controller 10. This command signal specifies, for example, the operation mode and set room temperature of the air conditioner. In the command signal, the operation mode and the set room temperature are described according to the operation of the remote controller 10. Examples of the operation mode include “cooling operation”, “heating operation”, “dehumidifying operation”, and “air blowing operation”. The remote control transmitter / receiver 61 outputs the received command signal. The command signals are supplied to the air conditioning establishment unit 211, the main unit control block 212, and the fan unit control block 213, respectively. The air conditioning establishment unit 211, the main unit control block 212, and the fan unit control block 213 operate according to the operation mode and the set room temperature specified by the command signal.

  The control unit 21 is connected to a room temperature sensor 62 attached to the main fan suction port 38 of the indoor unit 20 so that the temperature detected by the room temperature sensor 62 becomes a temperature set by the user. Air conditioning control is performed by the unit control block 212.

  In addition, a human sensor 63 attached to the indoor unit 20 is connected to the control unit 21, and the human sensor 63 detects the presence of the occupant and the position of the occupant. The human sensor 63 outputs a detection signal according to the detection result. The presence / absence and position of the occupant is specified by the detection signal. The detection signal is supplied to the control unit 21. The air conditioning establishment unit 211, the main unit control block 212, and the fan unit control block 213 can refer to the presence or absence and position of the occupant specified by the detection signal when executing the control.

  Moreover, the indoor heat exchanger temperature sensor 64 which detects the temperature of the indoor heat exchanger 264 is connected to the control unit 21 (refer FIG. 2). The indoor heat exchanger temperature sensor 64 is used for controlling the refrigeration circuit in an existing air conditioner. In this embodiment, a new configuration is added to use the existing temperature sensor. There is no need. When the heating operation is started, when the temperature of the indoor heat exchanger 264 is equal to or lower than a predetermined temperature (a temperature at which warm air can be blown out), the blowing by the main fan 265 is stopped until the predetermined temperature of the indoor heat exchanger 264 is reached or When the indoor heat exchanger 264 is heated to a predetermined temperature or more by the heat energy generated by the refrigerant in the refrigeration circuit, the heating operation is performed (the air from the main fan 265 is directed downward). Move.

  The control unit 21 may be configured by an arithmetic processing circuit such as a microprocessor unit (MPU). For example, a nonvolatile memory can be incorporated in the arithmetic processing circuit or can be externally attached. A predetermined control program can be stored in the memory, and the arithmetic processing circuit can function as the control unit 21 by executing the control program.

  A feature of the air conditioner according to the present embodiment is that the control unit 21 detects the temperature of the indoor heat exchanger 264 by the indoor heat exchanger temperature sensor 64 from the start of the heating operation, and the indoor heat exchanger 264 reaches a predetermined temperature. Until the operation of the side fan 266 is stopped. Further, when the indoor heat exchanger 264 reaches a predetermined temperature, the control unit 21 starts the operation of the side fan 266 in conjunction with the operation of the main fan 265. Further, the control unit 21 passes the indoor air taken in from the suction port 38 through the indoor heat exchanger from the main fan 265 until the temperature of the indoor heat exchanger 264 reaches a predetermined temperature from the start of the heating operation. A warming-up operation is performed in which the air is blown in a horizontal direction and the room temperature is monitored, and when the indoor heat exchanger 264 reaches a predetermined temperature, the warm air from the main fan 265 is blown downward, and the side fan 266 is operated to operate the room. Stir the air. In addition, the indoor air flow by the side fan 266 is made higher than the warm air flow by the main fan 265, so that the warm air is suppressed from above by the indoor air and the heating operation is performed so as to keep the warm air in the lower part of the room where the user is located. Mode airflow control is performed.

  FIG. 4 is a perspective view of the air conditioner showing an air flow state by the main fan 265 from the start of the heating operation until the temperature of the indoor heat exchanger reaches a predetermined temperature, and FIG. It is a perspective view of the air conditioner which shows the airflow state which the main fan 265 and the side fan 266 operate | move in conjunction after the temperature of an exchanger reaches | attains predetermined | prescribed temperature. Hereinafter, each airflow state will be described with reference to FIGS. 4 and 5.

(Airflow state before the indoor heat exchanger reaches the specified temperature)
FIG. 4 shows the state of the air flow by the main fan 265 until the air conditioner stops the operation of the side fan 266 when the heating operation starts and the temperature of the indoor heat exchanger 264 reaches a predetermined temperature. Here, the predetermined temperature is set to 37 ° C., which is close to the body temperature of a person who can feel warmth, but is not limited thereto, and the indoor air that has passed through the indoor heat exchanger 264 is cold for the person. The temperature of the indoor heat exchanger 264 may be such that the temperature is not felt. Therefore, during the warm-up operation at the start of the heating operation, the temperature of the indoor heat exchanger 264 is low and the room temperature is also low, and therefore, if the side fan 266 that stirs the indoor air is operated, it may feel chilly. Thus, the side fan 266 is not operated.

  And the main fan 265 makes the up-and-down wind direction plates 31a and 31b horizontal, and blows out warm air warmed by passing indoor air through the indoor heat exchanger 264 in the horizontal direction (main fan airflow 301). The room temperature can be monitored by taking in and circulating through the suction port 38 provided in the. Depending on the room temperature, it is possible to quickly shift to the heating operation mode. The main fan airflow 301 at this time is a breeze that blows out horizontally and does not apply airflow to the person 72, so that it does not feel chilly.

(Airflow after the indoor heat exchanger reaches the specified temperature)
FIG. 5A shows that when the temperature of the indoor heat exchanger 264 reaches a predetermined temperature (in this case, 37 ° C.) after the air conditioner starts the heating operation, the upper and lower airflow direction plates 31a and 31b of the main fan 265 are changed. At the same time as the main fan airflow 301 is blown out downward, the left fan unit 261 and the right fan unit 262 are rotated downward by about 45 ° from the horizontal direction, and the left side fan airflow 3411 and the right side with respect to the main fan airflow 301 are rotated. The fan airflow 3421 is directed inward by 10 ° from the left and right directions, for example (see FIG. 5-2), and blown out so as to press the main fan airflow 301 from above. Thus, when the air conditioner starts the heating operation and the temperature of the indoor heat exchanger 264 rises to a predetermined temperature, the main fan airflow 301, the left side fan airflow 3411, and the right side fan airflow 3421 are By combining, airflow control suitable for heating operation can be performed.

  Next, operation | movement of the air conditioner of a present Example is demonstrated using the flowchart of FIG. FIG. 6 is a flowchart for explaining the operation of the air conditioner according to the embodiment of the present invention.

  The user of the air conditioner performs an operation to start operation on the indoor unit 20 using the remote controller 10 shown in FIG. Here, the control unit 21 of the indoor unit 20 determines whether or not the operation mode is the heating operation mode (step S100). If the operation mode is the heating operation mode (Yes in step S100), the control unit 21 determines whether or not the operation is started. (Step S101). When the control unit 21 is in the heating operation mode and determines that the operation is started (Yes in step S101), the control unit 21 takes in from the air inlet 38 of the air conditioner shown in FIG. 4 while the side fan is stopped as shown in FIG. Warm-up operation is performed in which the room air is blown horizontally by the main fan 265 with a slight wind (step S102).

  The control unit 21 detects the temperature of the indoor heat exchanger 264 using the indoor heat exchanger temperature sensor 64, and determines whether or not the indoor heat exchanger 264 has reached a predetermined temperature of 37 ° C. or higher. (Step S103). If the indoor heat exchanger 264 is not higher than the predetermined temperature (No in step S103), the process returns to step S102 to continue the warm-up operation.

  Moreover, when the indoor heat exchanger 264 becomes more than predetermined temperature by step S103 (it is Yes at step S103), the control unit 21 starts an operation | movement with the airflow mode of heating operation. That is, the control unit 21 turns the wind direction of the warm air from the main fan 265 downward, blows it out with a preset air volume, and operates the side fan. The air flow of the side fan at this time blows out the main fan airflow 301 so as to be pressed from above with the left side fan airflow 3411 and the right side fan airflow 3421 of the side fan 266 (step S104).

  Subsequently, the control unit 21 determines whether or not the operation is stopped (step S105). If the operation is not stopped (No in step S105), the control unit 21 returns to step S100 and repeats the above processing. (Yes in step S105), the operation is terminated. In step S101, if the operation is not started, the process proceeds to step S104 (No in step S100), and the operation in the airflow mode of the heating operation is performed.

  Furthermore, when the operation mode is an operation mode such as cooling or dehumidification other than the heating operation mode (No in step S100), operation processing in each operation mode is performed in step S106 (step S106). If the operation mode is changed during the operation process in another operation mode (Yes in step S107), the process returns to step S100 and the above process is repeated. If the operation mode is not changed in step S107 (No in step S107), the control unit 21 determines whether or not the operation is stopped (step S108). If the operation is not stopped (No in step S108), the step Returning to S106, the above process is repeated, but if the operation is stopped (Yes in Step S108), the operation is terminated.

  Thus, in the air conditioner according to the present embodiment, while the indoor heat exchanger is not yet warmed at the start of the heating operation, the warm-up operation is performed until the indoor heat exchanger reaches a predetermined temperature, During the warm-up operation, the side fan that has the stirring function is stopped. At this time, the operation of the main fan is stopped so as not to generate an air current. Alternatively, when the main fan is operated for monitoring the room temperature, the air is blown in the horizontal direction so as not to apply airflow to the person 72, so that the chill is not felt.

  Further, in the air conditioner according to the present embodiment, after the heating operation is started, when the indoor heat exchanger reaches a predetermined temperature, the side fan 266 is operated in conjunction with the main fan 265 to enter the heating operation mode. Heating operation can be performed by appropriate airflow control.

  As described above, the air conditioner according to the present invention has an air conditioner in which a plurality of air outlets are arranged in the indoor unit of the air conditioner, and the air volume and direction of the airflow blown from each air outlet can be individually adjusted. It is an air conditioner that is useful for a machine, and that prevents a user from feeling chills by performing an appropriate operation even when the temperature of the indoor heat exchanger is low at the start of heating operation.

DESCRIPTION OF SYMBOLS 10 Remote control 20 Indoor unit 21 Control unit 211 Air conditioning establishment part 212 Main body unit control block 2121 Main fan control part 2122 Vertical wind direction board control part 2123 Left and right wind direction board control part 213 Fan unit control block 2131 Side fan control part 2132 Case attitude control part 2133 Left and right wind direction plate control unit 22 Main fan drive source 23 Up and down wind direction plate drive source 24 Left and right wind direction plate drive source 27 Main housing 28 Housing body 29 Exterior panel 30 Central air outlet 301 Main fan airflow 30a Front end 30b Rear end 31a, 31b Up-and-down airflow direction plates 32a, 32b, 35 Horizontal axis 36 Side panel 37 Side suction port 38 Suction port 40 Outdoor unit 41 Refrigeration circuit 42 Four-way valve 42a First port 42b Second port 42c Third port 42d Fourth port 43 Compressor 43a, 43b Discharge 44 Outdoor Heat Exchanger 45 Expansion Valve 46 Outdoor Fan 50 Refrigerant Pipe 61 Remote Control Transmitter / Receiver 62 Room Temperature Sensor 63 Human Sensor 64 Indoor Heat Exchanger Temperature Sensor 70 Wall Surface 71 Floor 72 People 261 Left Fan Unit 2611 Left Side Fan Drive Source 2612 Fan housing drive source 2613 Left and right wind direction plate drive source 262 Right fan unit 2621 Right side fan drive source 2622 Fan housing drive source 2623 Left and right wind direction plate drive source 263 Main unit 264 Indoor heat exchanger 265 Main fan 266 Side fan 331 Left side Fan housing 332 Right side fan housing 341 Left outlet 341a Left and right wind direction plate 3411 Left side fan air flow 342 Right outlet 342a Left and right air direction plate 3421 Right side fan air flow

Claims (2)

A main fan that includes a heat exchanger therein and blows conditioned air that has passed through the indoor heat exchanger, and a side fan that blows indoor air that does not pass through the heat exchanger on at least one of both sides of the main fan. An refrigeration circuit comprising an indoor unit, a compressor, an outdoor heat exchanger, and an outdoor unit having an outdoor fan, the compressor, the outdoor heat exchanger, and the indoor heat exchanger being connected by a refrigerant pipe An air conditioner that performs air conditioning,
The indoor unit is
An indoor heat exchanger temperature detecting means for detecting the temperature of the indoor heat exchanger;
Indoor unit control means for controlling operations of the main fan and the side fan;
Further comprising
The indoor unit control means stops the operation of the side fan from the start of heating operation until the indoor heat exchanger detected by the indoor heat exchanger temperature detection means reaches a predetermined temperature. Air conditioner to do. The indoor unit is
A wind direction control means for controlling a wind direction of the air blown by the main fan;
Until the temperature of the indoor heat exchanger detected by the indoor heat exchanger temperature detecting means reaches a temperature at which warm air can be blown out, the indoor unit control means stops the operation of the main fan, or 2. The air conditioner according to claim 1, wherein when the air conditioner is operated, the airflow from the main fan is blown out horizontally by the airflow direction control unit.

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