JP5581845B2 - Air conditioning indoor unit - Google Patents

Description

  The present invention relates to an air conditioning indoor unit.

  2. Description of the Related Art Conventionally, some air-conditioning indoor units are provided with a flap in the vicinity of the air outlet so that the temperature distribution in the air-conditioned room can be made as uniform as possible and the air direction angle can be changed so that a comfortable airflow can be obtained. Further, as in the air conditioner disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2001-132976), during cooling operation, air is blown out from the outlet in a substantially horizontal direction so that cold air does not collect near the floor surface. It is often the case that the flap is adopted in such a posture.

  By the way, in order to improve the comfort of the user during the cooling operation, for example, it may be possible to make the temperature distribution in the air-conditioned room uniform in as short a time as possible after the cooling operation is started.

  Therefore, an object of the present invention is to provide an air conditioning indoor unit that can improve the comfort of the user by reducing the time required to make the temperature distribution in the air conditioned room uniform after the cooling operation is started. There is to do.

The air-conditioning indoor unit according to the first aspect of the present invention includes a blowing unit, a first flap and a second flap, and a control unit. The blowing part is disposed near the ceiling of the air conditioning room. In addition, a blowing port is formed in the blowing unit. The first flap and the second flap are provided at the outlet. In addition, the first and second flaps can independently change the vertical wind direction angle. The control unit performs initial cooling control. The initial cooling control is control for causing the first flap and the second flap to perform different swing operations in the initial period. The initial period is a period from when the cooling operation is started until a predetermined time elapses. The outlet has an elongated first outlet, a second outlet, a third outlet, and a fourth outlet arranged along the four sides of the quadrangle. A 1st flap is located so that it may mutually oppose, and is two flaps arrange | positioned at a 1st blowing outlet and a 3rd blowing outlet. The second flaps are positioned so as to face each other, and are two flaps disposed at the second blowout port and the fourth blowout port. And a control part has a learning part which determines the length of an initial period by learning the past driving performance.

  In the air conditioning indoor unit according to the first aspect of the present invention, initial cooling control is performed in which the first flap and the second flap perform different swing operations in an initial period from when the cooling operation is started until a predetermined time elapses. Has been.

  By the way, in the case of an air-conditioning indoor unit equipped with a first flap and a second flap, the inventor continuously causes the first flap and the second flap to take a posture in which air is blown out substantially horizontally from the outlet. It was found that the temperature distribution in the air-conditioned room can be made uniform in a short time after the start of the cooling operation when the first flap and the second flap perform different swing operations. .

  For this reason, in the initial cooling control that is performed at the start of the cooling operation, by causing the first flap and the second flap to perform different swing operations, air is supplied to the first flap and the second flap from the outlet in a substantially horizontal direction. Compared with the case where the posture is made to be blown out, the time required to make the temperature distribution in the air-conditioned room uniform after the cooling operation is started can be shortened.

  As a result, user comfort can be improved.

  Further, in this air conditioning indoor unit, initial swinging operations are performed on the first flap, which is two flaps positioned so as to face each other, and the second flap, which is two flaps positioned so as to face each other. Cooling control is executed.

  By the way, in the air-conditioning indoor unit having four flaps, the inventor is such that air is blown out substantially horizontally from the outlets to all the flaps, compared to the case where all the flaps perform the swing operation at the same timing. In the case where the posture is continuously taken, it has been found that the temperature distribution in the air-conditioned room can be made uniform in a short time after the start of the cooling operation. In addition, in an air-conditioning indoor unit including four flaps, the inventor is opposed to each other as compared with a case where all the flaps continuously take a posture in which air is blown out substantially horizontally from the outlet. When the first flap and the second flap, which are composed of two positioned flaps, are swung at different timings, the temperature distribution in the air-conditioned room is more uniform in a short time after the start of the cooling operation. I got the knowledge that I can do it.

  Therefore, in the initial cooling control, the swing operation is performed at different timings on the first flap, which is two flaps positioned so as to face each other, and on the second flap, which is two flaps positioned so as to face each other. By making it so that all the flaps take a posture in which air is blown out from the air outlet in a substantially horizontal direction, or when all the flaps are swung at the same timing, cooling is performed. The time required to make the temperature distribution in the air-conditioned room uniform after the operation is started can be shortened.

  In addition, in this air conditioning indoor unit, it is possible to determine the time for the first flap and the second flap to perform different swing operations using the past operation results, so the swing operation according to the environment in the air conditioning room is executed. Time can be determined.

  An air conditioning indoor unit according to a second aspect of the present invention is the air conditioning indoor unit according to the first aspect, and the control unit starts swing operations of the first flap and the second flap at different timings in the initial cooling control. . In this air conditioning indoor unit, in the initial cooling control, the first flap and the second flap can be made to perform different swing operations by starting the swing operations of the first flap and the second flap at different timings, respectively.

  An air conditioning indoor unit according to a third aspect of the present invention further includes a fan that generates an air flow blown from a blowout port when driven in the air conditioning indoor unit according to the first aspect or the second aspect. Further, the control unit drives the fan so that the air volume of the fan becomes maximum in the initial cooling control. In this air conditioning indoor unit, the air volume of the fan is maximized when the initial cooling control is executed. For example, the temperature distribution in the air conditioning room can be made uniform in a short time compared to the case where the air volume of the fan is small.

  In the air conditioning indoor unit according to the first aspect of the present invention, it is possible to improve user comfort.

  In the air-conditioning indoor unit according to the second aspect of the present invention, the first flap and the second flap can be made to perform different swing operations by starting the swing operations of the first flap and the second flap at different timings, respectively. .

  In the air conditioning indoor unit according to the third aspect of the present invention, the temperature distribution in the air conditioned room can be made uniform in a short time.

1 is a schematic refrigerant circuit diagram of an air conditioner according to an embodiment of the present invention. The external appearance perspective view of an indoor unit. The top view which looked at the indoor unit from the indoor side. The figure which shows the changeable range of a horizontal flap. The schematic longitudinal cross-sectional view of an indoor unit. The control block diagram of the control part with which an air conditioner is provided. The timing chart for demonstrating operation | movement of each horizontal flap. The flowchart which shows the flow of control operation | movement of an initial stage cooling operation control part. When the air conditioner cooling operation is started in a state where the indoor unit installed in the test chamber is horizontally blown fixed, when the air conditioner cooling operation is started in the fully synchronized swing state of the indoor unit installed in the test chamber, or The figure which shows time and power consumption until the average room temperature reaches the preset temperature when the indoor unit installed in the test room starts cooling operation of the air conditioner in the face-to-face swing state. When the air conditioner cooling operation is started with the indoor unit installed in the test chamber fixed horizontally blown, and when the air conditioner cooling operation is started in the fully synchronized swing state for the indoor unit installed in the test chamber, When the air conditioner cooling operation is started with the indoor unit installed in the face-to-face swing state, or the air conditioner air-conditioning operation is performed by using both the face-to-face swing state and the horizontal blowing fixed state for the indoor unit installed in the test room. The figure which shows each power consumption at the time of starting. The timing chart for demonstrating operation | movement of each horizontal flap which concerns on the modification A. FIG. It is a figure which shows the initial period in initial cooling control, Comprising: (a) The figure which shows the state of the horizontal flap in the initial period in this embodiment, and the period after an initial period, and the air volume of an indoor fan, (b) It concerns on the modification C The figure which shows the state of the horizontal flap in the period after an initial period and an initial period, and the air volume of an indoor fan. The flowchart which shows the flow of control operation of the initial stage cooling operation control part which concerns on the modification C. The control block diagram of the control part with which the air conditioner concerning the modification D is provided. The flowchart which shows the flow of control operation | movement of the initial stage cooling operation control part which concerns on the modification D. The flowchart which shows the flow of learning driving | running time determination by the learning part which concerns on the modification D. The figure which shows transition of the temperature change at the time of making the air conditioner perform air_conditionaing | cooling operation by making the horizontal flap which the indoor unit installed in the test room has the facing swing state in the modification E. The control block diagram of the control part with which the air conditioner concerning the modification E is provided. The flowchart which shows the flow of control operation | movement of the initial stage cooling operation control part which concerns on the modification E.

  Below, the air conditioner 10 which concerns on one Embodiment of this invention is demonstrated. The air conditioner 10 includes an outdoor unit 20 that is set outdoors, and an indoor unit 30 that is installed near the ceiling of the room (corresponding to an air-conditioned room), and performs various operations such as cooling operation and heating operation. Can be executed.

(1) Outdoor unit The outdoor unit 20 includes a compressor 21, a four-way switching valve 22 connected to the discharge side of the compressor 21, an outdoor heat exchanger 23 connected to the four-way switching valve 22, And an expansion valve 24 connected to the outdoor heat exchanger 23 (see FIG. 1).

  The compressor 21 is a mechanism that discharges a high-pressure gas refrigerant after sucking and compressing the low-pressure gas refrigerant into a high-pressure gas refrigerant. The four-way switching valve 22 is a valve for switching the direction in which the refrigerant flows when switching between the cooling operation and the heating operation. During the cooling operation, the four-way switching valve 22 connects the discharge side of the compressor 21 and the gas side of the outdoor heat exchanger 23 and connects an indoor heat exchanger 33 described later and the suction side of the compressor 21. The four-way switching valve 22 connects the discharge side of the compressor 21 and the indoor heat exchanger 33 and connects the gas side of the outdoor heat exchanger 23 and the suction side of the compressor 21 during heating operation. The outdoor heat exchanger 23 is a heat exchanger that functions as a refrigerant radiator during cooling operation and functions as a refrigerant evaporator during heating operation. The expansion valve 24 decompresses the high-pressure liquid refrigerant radiated in the outdoor heat exchanger 23 before sending it to the indoor heat exchanger 33 during the cooling operation. Further, during the heating operation, the expansion valve 24 reduces the pressure before sending the high-pressure liquid refrigerant radiated in the indoor heat exchanger 33 to the outdoor heat exchanger 23. Further, an outdoor fan 25 is provided in the outdoor unit 20. The outdoor fan 25 is a propeller fan for taking in outdoor air and discharging the air after heat exchange of the outdoor heat exchanger 23 to the outside of the outdoor unit 20.

(2) Indoor unit The indoor unit 30 is a ceiling-mounted indoor unit called a ceiling-embedded type. The indoor unit 30 includes a casing 31 that houses various components therein, an indoor fan 32, an indoor heat exchanger 33, and a plurality of (four in this embodiment) horizontal flaps 34a, 34b, 34c, and 34d. And a suction temperature sensor T1 and a remote controller 80 (see FIGS. 1 to 6).

  The casing 31 includes a casing main body 35 and a decorative panel 36 disposed on the lower side of the casing main body 35. The casing body 35 is inserted and arranged in an opening O formed in the ceiling U. Moreover, the decorative panel 36 is arrange | positioned so that it may fit in the opening O of the ceiling U (refer FIG. 5).

  The casing body 35 is a substantially octagonal box-shaped member formed such that long sides and short sides are alternated in plan view, and the lower surface thereof is open. In addition, an indoor fan 32, an indoor heat exchanger 33, and the like are housed inside the casing body 35.

  The decorative panel 36 is a plate-like member having a substantially quadrangular shape in plan view. The decorative panel 36 is formed with a blowing port 37 and a suction port 36a. The blowout port 37 is an opening for blowing out air into the room, and is positioned along the peripheral edge of the decorative panel 36 in a plan view. The suction port 36 a is an opening for sucking indoor air, and is positioned so as to be surrounded by the substantially central portion of the decorative panel 36, that is, the blowout port 37 in a plan view. Specifically, the suction port 36a is a substantially quadrangular opening, and the blowout port 37 is a substantially quadrangular annular opening.

  The indoor fan 32 is a centrifugal blower that can generate an air flow when driven. Specifically, the indoor fan 32 sucks indoor air into the casing body 35 through the suction port 36a and casings the air after being heat-exchanged by the indoor heat exchanger 33 through the blowout port 37. Blow out from inside the main body 35. Moreover, the indoor fan 32 has a fan motor 32a whose rotational speed can be changed by an inverter device (not shown). By controlling the rotation speed of the fan motor 32a, the air volume of the indoor fan 32 can be controlled.

  The indoor heat exchanger 33 is a heat exchanger that functions as a refrigerant evaporator during a cooling operation and functions as a refrigerant radiator during a heating operation. The indoor heat exchanger 33 exchanges heat between the indoor air sucked into the casing body 35 and the refrigerant, cools the indoor air during the cooling operation, and heats the indoor air during the heating operation. it can.

  The four horizontal flaps 34 a, 34 b, 34 c, 34 d are positioned so as to correspond to the respective sides of the decorative panel 36 and are rotatably provided at the outlet 37. The horizontal flaps 34a, 34b, 34c, and 34d can change the airflow direction angle of the conditioned air blown into the room from the air outlet 37 into the room. Specifically, the horizontal flaps 34 a, 34 b, 34 c, 34 d are plate-like members that are elongated along the square sides of the outlet 37. Further, both ends in the longitudinal direction of the horizontal flaps 34a, 34b, 34c, 34d are rotated around the longitudinal axis by a pair of support portions 39a, 39b arranged so as to block a part of the blowing port 37. The decorative panel 36 is supported so as to be movable. Furthermore, each horizontal flap 34a, 34b, 34c, 34d is driven by drive motors 38a, 38b, 38c, 38d. Accordingly, the horizontal flaps 34a, 34b, 34c, and 34d can independently change the vertical direction of the wind direction, and can reciprocate in the vertical direction with respect to the outlet 37. It has become.

  Note that the air outlet 37 is supported by the support portions 39a and 39b, the air outlet 37a (corresponding to the first air outlet), the air outlet 37b (corresponding to the second air outlet) corresponding to each side of the square of the decorative panel 36, A blowing port 37c (corresponding to the third blowing port) and a blowing port 37d (corresponding to the fourth blowing port), and a blowing port 37e, a blowing port 37f, a blowing port 37g corresponding to each corner of the square of the decorative panel 36, And the outlet 37g. In this embodiment, as shown in FIGS. 2 and 3, the horizontal flap 34a is disposed so as to cover the blowout port 37a, and the horizontal flap 34b is disposed so as to cover the blowout port 37b. A horizontal flap 34c is disposed so as to cover the opening 37c, and a horizontal flap 34d is disposed so as to cover the blowout opening 37d.

  The suction temperature sensor T1 is a temperature sensor that detects a suction air temperature (hereinafter referred to as a suction temperature Tr) that is a temperature of indoor air sucked into the casing body 35 through the suction port 36a. As shown in FIG. 5, the suction temperature sensor T1 is provided in the suction port 36a. Further, the suction temperature sensor T1 transmits the detected suction temperature Tr to the control unit 60 described later.

  The remote controller 80 is a device for a user to remotely operate the air conditioner 10. The remote controller 80 transmits various instructions for the air conditioner 10 made by the user to the control unit 60 described later. The remote controller 80 is provided with operation switches such as an operation start / stop switch 84, a wind direction adjustment switch 81, an air volume adjustment switch 82, and a manual / automatic selection switch 83 (see FIG. 6).

  The operation start / stop switch 84 is a switch operated when the user gives an instruction to start or stop the operation of the air conditioner 10. The user can start or stop various operations such as a cooling operation and a heating operation of the air conditioner 10 by operating the operation start / stop switch 84.

  The wind direction adjustment switch 81 is a switch operated when the user gives a wind direction setting instruction. The user can adjust the wind direction of the air blown out from the outlets 37a, 37b, 37c, and 37d to a desired wind direction by operating the wind direction adjustment switch 81. Specifically, when the user presses the wind direction adjustment switch 81, the horizontal flaps 34a, 34b, 34c are set such that the wind direction is fixed to the wind direction P0 or the wind direction P1 shown in FIG. 4 or the wind direction is automatically changed. , 34d are driven.

  The air volume adjustment switch 82 is a switch operated when the user gives an air volume setting instruction. The user can adjust the air volume of the air blown from the air outlet 37 to a desired air volume by operating the air volume adjustment switch 82. Specifically, when the user presses the air volume adjustment switch 82, the air volume generated by the indoor fan 32 is switched to a first air volume H, a second air volume M, and a third air volume L, which will be described later.

  The manual / automatic selection switch 83 is a switch operated when the user issues a mode setting instruction during cooling operation. The user can set the mode to either the manual control mode or the automatic control mode by operating the manual / automatic selection switch 83. When the manual control mode is set, the various devices of the air conditioner 10 are controlled so that the set temperature Trs, the set air volume, and the set air direction set by the user from the start of the cooling operation. Is done. Further, when the automatic control mode is set, in the initial period that is a period from the start of the cooling operation until a predetermined time elapses, various types of the air conditioner 10 are controlled according to the control content of the initial cooling control described later. The device is controlled.

(3) Control Unit The control unit 60 is a microcomputer including a CPU and a memory, and controls operations of various devices included in the indoor unit 30 and the outdoor unit 20. Specifically, as shown in FIG. 6, the control unit 60 includes a suction temperature sensor T1, a fan motor 32a, drive motors 38a, 38b, 38c, and 38d, a compressor 21, a four-way switching valve 22, an expansion valve 24, and the like. It is electrically connected to various devices. And the control part 60 performs drive control of various apparatuses, such as the compressor 21, based on the detection result of the suction temperature sensor T1, and the various instructions made | formed via the remote controller 80 by the user.

  Further, when the air conditioner 10 performs the cooling operation, the control unit 60 switches the four ways so that the outdoor heat exchanger 23 functions as a refrigerant radiator and the indoor heat exchanger 33 functions as a refrigerant evaporator. The state of the valve 22 is switched and the compressor 21 is driven. In the cooling operation, the control unit 60 controls various devices so that the suction temperature Tr becomes the set temperature Trs. That is, in the cooling operation, when the suction temperature Tr is higher than the set temperature Trs, the above-described operation control in which the refrigerant circulates in the refrigerant circuit by driving the compressor 21 is performed (hereinafter, this operation control is referred to as the operation control). The current state is called the cooling thermo-on state). When the suction temperature Tr reaches the set temperature Trs, the compressor 21 is stopped so that the refrigerant is not circulated in the refrigerant circuit, and the indoor fan is kept from blowing out the air through the outlet 37. Control is performed to stop the rotation of 32 (hereinafter, a state in which this control is performed is referred to as a cooling thermo-off state).

  Further, the control unit 60 includes a reception unit 61, an air volume control unit 62, and an air direction control unit 63. The receiving unit 61 receives various instructions transmitted from the remote controller 80. Specifically, the receiving unit 61 can receive a cooling operation or heating operation start instruction made by the user via the remote controller 80, or can receive an air volume setting instruction, an air direction setting instruction, or the like. . The receiving unit 61 transmits signals based on various instructions given by the user to the initial cooling operation control unit 65 described later.

  The air volume control unit 62 rotates the fan motor 32a based on the air volume setting instruction transmitted from the remote controller 80 or the detection result of the suction temperature sensor T1 when the air conditioner 10 performs the heating operation or the cooling operation. Control the number. The air volume control unit 62 can change the air volume of the indoor fan 32 by controlling the rotation speed of the fan motor 32a. Further, the air volume of the indoor fan 32 is changed by changing the rotation speed of the fan motor 32a, so that the first air volume H having the highest rotation speed, the second air volume M having a medium speed smaller than the rotation speed of the first air volume H, The speed is changed between a third air volume L that is smaller than the rotational speed of the second air volume M.

  When the air conditioner 10 is performing a heating operation or a cooling operation, the wind direction control unit 63 determines each drive motor 38a, based on the wind direction setting instruction transmitted from the remote controller 80 and the detection result of the suction temperature sensor T1. 38b, 38c, and 38d are controlled. The wind direction control part 63 can change the attitude | position and operation | movement of each horizontal flap 34a, 34b, 34c, 34d by controlling drive motor 38a, 38b, 38c, 38d. Then, by changing the posture of each horizontal flap 34a, 34b, 34c, 34d, the air direction of the air blown out from the blowout ports 37a, 37b, 37c, 37d is changed. Further, as shown in FIG. 4, the wind direction includes a wind direction P0 that is a wind direction in which air is blown out in a substantially horizontal direction, and a wind direction P1 that is lower than the wind direction P0. Further, the operations of the horizontal flaps 34a, 34b, 34c, and 34d include a fixing operation and a swing operation. The fixing operation is an operation in which the postures of the horizontal flaps 34a, 34b, 34c, and 34d are maintained by controlling the drive motors 38a, 38b, 38c, and 38d. In addition, the swing operation means that the postures of the horizontal flaps 34a, 34b, 34c, 34d are within a changeable range by driving the drive motors 38a, 38b, 38c, 38d (here, between the wind direction P0 and the wind direction P1). It is an operation that is repeatedly changed up and down. Note that the wind direction control unit 63 can individually control the wind direction and operation for each of the drive motors 38a, 38b, 38c, and 38d.

  Further, when the air conditioner 10 is not performing various operations such as a heating operation and a cooling operation, the horizontal flaps 34a, 34b, 34c, 34d take a posture in which the outlets 37a, 37b, 37c, 37d are closed. Thus, the drive motors 38a, 38b, 38c, and 38d are controlled. Hereinafter, for convenience of explanation, the wind direction angle in the case where the horizontal flaps 34a, 34b, 34c, 34d take a posture in which the outlets 37a, 37b, 37c, 37d are closed is represented as a wind direction P0c (see FIG. 7). . Further, when the air conditioner 10 is performing various operations such as a heating operation and a cooling operation, the horizontal flaps 34a, 34b, 34c, 34d take a posture in which the outlets 37a, 37b, 37c, 37d are opened. Thus, the drive motors 38a, 38b, 38c, and 38d are controlled. Hereinafter, for convenience of explanation, the posture that the horizontal flaps 34a, 34b, 34c, and 34d take so that the wind direction is the wind direction P0 is referred to as a horizontal blowing posture. In the present embodiment, when the automatic control mode is set by the user, the horizontal flaps 34a, 34b, 34c, and 34d are set as defaults except when the initial cooling control described later is being executed. Each drive motor 38a, 38b, 38c, 38d is controlled so that a horizontal blowing posture is taken.

  Furthermore, the control unit 60 includes an initial cooling operation control unit 65 that executes initial cooling control at the start of the cooling operation. The initial cooling operation control unit 65 executes initial cooling control when the automatic control mode is set.

  In the initial cooling control, the initial cooling operation control unit 65, first, in an initial period from when the cooling operation is started to when a predetermined time (hereinafter referred to as an optimum time) obtained experimentally in advance elapses. Wind direction control unit 63 so that two horizontal flaps arranged so as to face each other among the four horizontal flaps 34a, 34b, 34c, 34d perform a swing operation while adopting the same posture (hereinafter referred to as a face-to-face swing operation). The control signal is transmitted to the air volume control unit 62 so that the air volume of the indoor fan 32 becomes the first air volume H. Then, the initial cooling operation control unit 65 stops the face-to-face swing operation of the horizontal flaps 34a, 34b, 34c, and 34d when the optimum time has elapsed since the start of the cooling operation, that is, when the initial period is over, and A control signal is transmitted to the air direction control unit 63 so that the flaps 34a, 34b, 34c, 34d start the fixing operation while adopting the horizontal blowing posture, and the air volume of the indoor fan 32 is set by the user from the first air volume H. The initial cooling control is terminated by transmitting a control signal to the air volume control unit 62 so as to obtain the set air volume.

  In addition, when the control signal related to the face-to-face swing operation is transmitted from the initial cooling operation control unit 65, the wind direction control unit 63 receives two horizontal flaps (for example, horizontal flaps) among the four horizontal flaps 34a, 34b, 34c, and 34d. 34a, 34c (corresponding to the first flap) and other horizontal flaps (for example, horizontal flaps 34b, 34d; corresponding to the second flap) perform swinging operations in opposite directions to each other, the drive motors 38a, 38b. , 38c, 38d are controlled. At this time, the wind direction control unit 63 changes the rotation direction of the other horizontal flaps (for example, 34b and 34d) at the timing when the rotation direction of the two horizontal flaps (for example, the horizontal flaps 34a and 34c) changes. Control to change. The wind direction control unit 63 starts the swing operation of either one of the two horizontal flaps (for example, the horizontal flaps 34a and 34c) and the other horizontal flap (for example, 34b and 34d) first, so that 2 Two horizontal flaps (for example, horizontal flaps 34a, 34c) and other horizontal flaps (for example, 34b, 34d) are caused to perform different swing motions. Further, different swing motions in the present embodiment mean motions in which swing motions of the same swing pattern are performed at different timings. However, the present invention is not limited to this, and different swing motions may be different swing patterns, for example. The swing operation may be performed.

  Below, the attitude | position which the horizontal flaps 34a, 34b, 34c, 34d take by initial stage cooling control is demonstrated using FIG. In FIG. 7, the horizontal flap 34a and the horizontal flap 34c start to rotate before the horizontal flap 34b and the horizontal flap 34d. However, the present invention is not limited to this, and the horizontal flap 34b and the horizontal flap 34d are horizontal. The rotation may be started before the flap 34a and the horizontal flap 34c.

  First, the wind direction control unit 63 controls the driving of the drive motors 38a and 38c, so that the horizontal flaps 34a and 34c both close the blowing ports 37a and 37c (wind direction P0c) to the wind direction P1 through the wind direction P0. Rotate at the same rotation speed in the rotating direction, that is, in the downward direction. Accordingly, the wind direction angles of the horizontal flap 34a and the horizontal flap 34c reach the wind direction P1 from the wind direction P0 at the same timing. After the horizontal flaps 34a and 34c reach the wind direction P1, the rotation direction of the horizontal flaps 34a and 34c changes from the downward direction to the upward direction. At this timing, the other horizontal flaps 34b and 34d are blown out together. From the state where the mouths 37b and 37d are closed (wind direction P0c), the rotation from the wind direction P1 (that is, the downward rotation) is started. The horizontal flaps 34a and 34c rotate upward at the same rotational speed, while the horizontal flaps 34b and 34d rotate downward at the same rotational speed. At this time, the rotational speed of the horizontal flaps 34b and 34d is equal to the rotational speed of the horizontal flaps 34a and 34c.

  By repeating such an operation, when the horizontal flaps 34a and 34c are both rotated downward, the horizontal flaps 34b and 34d are both rotated upward and the horizontal flaps 34a and 34c. The wind direction angles of the horizontal flaps 34b and 34d simultaneously become the wind direction P0 at the timing when the wind direction angle becomes the wind direction P1 at the same time. On the other hand, when the horizontal flaps 34a and 34c are both turned upward, the horizontal flaps 34b and 34d are both turned downward, and the wind direction angle of the horizontal flaps 34a and 34c is simultaneously the wind direction P0. At this time, the wind direction angles of the horizontal flaps 34b and 34d become the wind direction P1 at the same time.

  In the following, for convenience of explanation, in the initial cooling control, the state in which the horizontal flaps 34a and 34c or the horizontal flaps 34b and 34d perform the above-described swing operation (face-to-face swing operation) while being synchronously driven is referred to as a face-to-face swing state. The state in which the horizontal flaps 34a, 34b, 34c, and 34d are in the horizontal blowing posture and performing the fixing operation is referred to as a horizontal blowing fixed state. In this embodiment, the optimum time is 16 minutes and 40 seconds.

(4) Control Operation by Initial Cooling Operation Control Unit Next, the control operation by the initial cooling operation control unit 65 will be described with reference to FIG. Note that, as described above, the initial cooling operation control unit 65 executes the initial cooling control only when the cooling operation is started and the automatic control mode is set by the user. That is, even when the heating operation is started or the cooling operation is started, the initial cooling control by the initial cooling operation control unit 65 is not executed if the user has set the manual control mode.

  When the initial cooling operation control unit 65 receives the cooling operation start instruction signal transmitted from the receiving unit 61 (step S1), the initial cooling operation control unit 65 starts executing the initial cooling control. Specifically, the initial cooling operation control unit 65 receives the cooling operation start instruction signal transmitted from the receiving unit 61 that has been received by the user in the room and has received the cooling operation start instruction. Starts execution of the initial cooling control.

  In the initial cooling control, the initial cooling operation control unit 65 first transmits a wind direction change signal related to the face-to-face swing operation to the wind direction control unit 63 and transmits an air volume change signal to the air volume control unit 62 (step S2). The wind direction control unit 63 to which the wind direction change signal related to the face-to-face swing operation is transmitted from the initial cooling operation control unit 65, the drive motors 38a, 38b, and 38c so that the horizontal flaps 34a, 34b, 34c, and 34d are in the face-to-face swing state. , 38d. In addition, the air volume control unit 62 to which the air volume change signal is transmitted from the initial cooling operation control unit 65 causes the fan motor so that the air volume of the indoor fan 32 is not the set air volume set by the user but the first air volume H. The rotational speed of 32a is controlled.

  Then, when the optimum time has elapsed after transmitting the wind direction change signal and the air volume change signal regarding the face-to-face swing operation in step S <b> 2 (step S <b> 3), the initial cooling operation control unit 65 transmits a wind direction change release signal to the wind direction control unit 63. At the same time, an air volume change release signal is transmitted to the air volume controller 62 (step S4). The wind direction control unit 63 to which the wind direction change release signal is transmitted from the initial cooling operation control unit 65, the drive motors 38a, 38b, so that all the horizontal flaps 34a, 34b, 34c, 34d are in the horizontal blowing fixed state. 38c and 38d are controlled. In addition, the air volume control unit 62 to which the air direction change release signal is transmitted from the initial cooling operation control unit 65 controls the fan motor 32a so that the air volume of the indoor fan 32 is set by the user from the first air volume H. Change to the set air volume. Thereby, the initial cooling control by the initial cooling operation control unit 65 ends. The initial cooling operation control unit 65 does not transmit the wind direction change cancellation signal and the air volume change cancellation signal until the optimum time has elapsed after transmitting the wind direction change signal and the air volume change signal regarding the facing swing operation (step S3). .

  Here, in the initial cooling control, the result of the evaluation test is shown for the reason why the horizontal flaps arranged so as to face each other perform the swing operation synchronously, that is, the reason why the face-to-face swing operation is adopted. This will be described with reference to FIGS. 9 and 10. In the following, for convenience of explanation, the state in which all the horizontal flaps 34a, 34b, 34c, 34d are performing the swing operation in synchronism, that is, the swing operations of all the horizontal flaps 34a, 34b, 34c, 34d are simultaneously performed. A state in which all the horizontal flaps 34a, 34b, 34c, and 34d are swinging while taking the same posture by being started is referred to as an all-synchronized swing state.

  FIG. 9 shows the state of the indoor unit 30 installed in the test chamber when the air conditioner 10 is cooled by setting the horizontal flaps 34a, 34b, 34c and 34d of the indoor unit 30 installed in the test chamber to the horizontal blowing fixed state. The horizontal flaps 34a, 34b, 34c, 34d having the horizontal flaps 34a, 34b, 34c, 34d having the fully synchronized swing state or the air conditioner 10 performing the cooling operation or the horizontal flaps 34a, 34b, 34c, 34d of the indoor unit 30 installed in the test chamber are used. In the face-to-face swing state, when the air conditioner 10 performs the cooling operation, after starting the cooling operation, the average room temperature (the average value of a plurality of temperature detection sensors arranged in a lattice pattern in the test room space, that is, Until the set temperature Trs reaches the set temperature Trs (the average value of the temperatures measured at all points in the test chamber). Time and) shows the power consumed by the entire air conditioner 10, the.

  FIG. 10 shows the state of the indoor unit 30 installed in the test chamber when the air conditioner 10 is cooled by setting the horizontal flaps 34a, 34b, 34c, and 34d of the indoor unit 30 installed in the test chamber to the horizontal blowing fixed state. When the horizontal flaps 34 a, 34 b, 34 c, 34 d having the horizontal flaps 34 a, 34 d are in a fully synchronized swing state and the air conditioner 10 performs a cooling operation, the horizontal flaps 34 a, 34 b, 34 c, 34 d of the indoor unit 30 installed in the test chamber face each other. When the air conditioner 10 is allowed to perform a cooling operation in a swing state, or until the horizontal flaps 34a, 34b, 34c, and 34d of the indoor unit 30 installed in the test chamber have passed 16 minutes and 40 seconds from the start of operation. Is in a face-to-face swing state, and after 16 minutes and 40 seconds have passed, the air blower is in a horizontal blowing fixed state. When 0 to perform the cooling operation, it shows the power consumed by the entire air conditioner 10 during the period from when the operation start of the cooling operation until 1 hour has elapsed.

  FIG. 9 and FIG. 10 show the results of an evaluation test after the environment in the test room was allowed to acclimatize for a sufficient time under JIS cooling standard conditions (outside air temperature DB: 35 ° C., WB: 30 ° C.). 9 and 10 show the results when the set temperature Trs is set to 27 ° C. and the set air volume is set to the first air volume H. FIG.

  From the measurement result of the indoor temperature distribution, the time required for the average room temperature to reach the set temperature Trs after the start of the cooling operation, that is, the length of the temperature distribution homogenization period is fixed to the horizontal blowing than in the fully synchronized swing state The state was shorter and the face-to-face swing state was shorter than the horizontal blowing fixed state (see FIG. 9). Thus, at the start of cooling operation, the horizontal blow fixed state can generate a uniform temperature distribution in a shorter time than the fully synchronized swing state, and the face-to-face swing state has a shorter time than the horizontal blow fixed state. It was found that a uniform temperature distribution can be generated. That is, it has been found that the effect of uniformizing the temperature distribution in the room at the start of the cooling operation is high in the order of the facing swing state, the horizontal blowing fixed state, and the fully synchronized swing state.

  Further, as shown in FIG. 9, the power consumed until the average room temperature reaches the set temperature Trs after the start of the cooling operation, that is, the power consumed during the temperature distribution equalization period is fixed horizontally. The state was about 50% smaller than the fully synchronized swing state, and the face-to-face swing state was slightly more than 30% smaller than the horizontal blowing fixed state.

  Furthermore, as shown in FIG. 10, the power consumption consumed for one hour after starting the cooling operation is slightly less than 20% in the all-synchronized swing state than in the horizontal blowing fixed state. The state was slightly more than 30% larger than the horizontal blowing fixed state.

  From these results, the horizontal flaps 34a, 34b, 34c, and 34d are caused to perform the face-to-face swing operation until the average room temperature reaches the set temperature Trs after the cooling operation is started, that is, in the temperature distribution homogenization period. After the temperature reaches the set temperature Trs, that is, a period after the temperature distribution homogenization period (hereinafter referred to as a stable period), the horizontal flaps 34a, 34b, 34c, 34d are made to take a horizontal blowing posture and perform a fixed operation. In this case, the cooling operation is performed in comparison with the case where all horizontal flaps 34a, 34b, 34c, 34d are made to take the horizontal blowing posture and perform the fixing operation continuously in the temperature distribution homogenization period and the stable period. It has been found that the time required to make the temperature distribution in the room uniform after the start is shortened and the power consumption is reduced. Further, the horizontal flaps 34a, 34b, 34c, 34d are caused to perform a face-to-face swing operation during the temperature distribution homogenization period, and the horizontal flaps 34a, 34b, 34c, 34d are allowed to take a horizontal blowing posture and are fixed during the stable period. When the operation is performed, the indoor operation is started after the cooling operation is started as compared with the case where the horizontal flaps 34a, 34b, 34c, and 34d perform the face-to-face swing operation continuously in the temperature distribution uniformization period and the stabilization period. It has been found that the electric power consumed to make the temperature distribution of the battery becomes smaller (see FIG. 10).

  Therefore, the inventor starts the facing swing operation for the horizontal flaps 34a, 34b, 34c, 34d simultaneously with the start of the cooling operation and starts the facing swing operation for the horizontal flaps 34a, 34b, 34c, 34d. When the time (optimal time) has passed, the face-to-face swing operation is stopped, and the horizontal flaps 34a, 34b, 34c, 34d are allowed to take a horizontal blowing posture and perform the fixing operation. We obtained the knowledge that the temperature distribution is uniform in a short time and the power consumption is small. And in the air conditioner 10 of this embodiment, using such knowledge, in the initial cooling control, the states of the horizontal flaps 34a, 34b, 34c, and 34d are switched in the order of the facing swing state and the horizontal blowing fixed state. A control method for controlling the horizontal flaps 34a, 34b, 34c, and 34d so as to be replaced is adopted.

  In this evaluation test, when the horizontal flaps 34a, 34b, 34c, and 34d are in the face-to-face swing state, the temperature distribution in the room is uniform when 16 minutes and 40 seconds have elapsed since the start of the cooling operation. became. For this reason, after the start of the cooling operation, the duration time (optimum time) of the face-to-face swing operation that can equalize the temperature portion in the room and reduce the power consumption is the start of the cooling operation. It is desirable to set the time around 16 minutes and 40 seconds. When the optimum time is about 16 minutes and 40 seconds, the precondition is that the capacity of the air conditioner 10 is almost compatible with the air conditioning load of the room where the air conditioner 10 is installed (even if the capacity is excessive, the capacity is high). And the condition that two horizontal flaps arranged so as to face each other out of the four horizontal flaps 34a, 34b, 34c, and 34d are driven in synchronization with each other. There is.

  By adopting the above-described control as the initial cooling control, the horizontal flaps 34a, 34b, 34c, 34d are fixed in the horizontal blowing state or the horizontal flaps 34a, 34b, 34c, 34d are all set at the start of the cooling operation. Compared with the air conditioner 10 that is in the synchronized swing state, the temperature distribution in the room at the start of the cooling operation can be made uniform in a short time.

  In the present embodiment, since the optimum time in the initial cooling control is set to 16 minutes and 40 seconds, the temperature distribution in the room can be made uniform, and the amount of power consumed in the initial cooling control can be suppressed. it can.

(5) Features (5-1)
When trying to improve the comfort of the user during the cooling operation, it is conceivable to make the temperature distribution in the room uniform in the shortest possible time after the cooling operation is started. Then, the inventor causes all the horizontal flaps 34a, 34b, 34c, 34d to perform the swing operation at the same timing in the indoor unit 30 of the air conditioner 10 having the four horizontal flaps 34a, 34b, 34c, 34d. However, it is possible to make the temperature distribution in the room uniform in a short time after the start of the cooling operation if the fixing operation is performed while adopting the horizontal blowing posture in all the horizontal flaps 34a, 34b, 34c, 34d. I got the knowledge that I can do it. Further, the inventor makes the horizontal flaps 34a, 34b, 34c, and 34d face each other rather than causing all the horizontal flaps 34a, 34b, 34c, and 34d to perform the fixing operation while adopting the horizontal blowing posture. The two horizontal flaps (for example, horizontal flaps 34a and 34c) to be arranged and the two horizontal flaps (for example, horizontal flaps 34b and 34d) arranged so as to face each other perform different swing operations. In addition, the inventors have found that the temperature distribution in the room can be made uniform in a short time after the start of the cooling operation.

  Therefore, in the present embodiment, in the initial cooling control, the face-to-face swing operation in which the horizontal flaps 34a, 34c and the horizontal flaps 34b, 34d start the swing operation at different timings in the initial period is performed as the horizontal flaps 34a, 34b, 34c, 34d. For this reason, when all horizontal flaps 34a, 34b, 34c, 34d are made to perform a fixing operation while adopting a horizontal blowing posture, or when all the horizontal flaps 34a, 34b, 34c, 34d are to perform the same swing operation. As compared with the case, the time required for making the temperature distribution in the room uniform after the cooling operation is started can be shortened.

  As a result, user comfort can be improved.

(5-2)
In the present embodiment, the initial cooling operation control unit 65 transmits a wind direction change signal to the air volume control unit 62 so that the air volume of the indoor fan 32 becomes the first air volume H in the initial cooling control. Thereby, while the initial cooling control is being performed, the rotation speed of the fan motor 32a is controlled so that the air volume of the indoor fan 32 becomes the first air volume H which is the maximum air volume of the indoor fan 32. Therefore, for example, compared with the case where the rotational speed of the fan motor 32a is controlled so that the air volume of the indoor fan 32 becomes the third air volume L smaller than the first air volume H, the indoor temperature distribution is made uniform in a short time. Have been able to.

(5-3)
In the present embodiment, an optimum time obtained experimentally in advance is employed as the length of the initial period of the initial cooling control, that is, the time during which the face-to-face swing operation is executed in the initial cooling control. For this reason, the length of the initial period can be preset in the air conditioner 10.

(5-4)
In the present embodiment, in the initial cooling control, the air volume is set to the first air volume H and the horizontal flaps 34a, 34b, 34c, 34d are subjected to the face-to-face swing operation, and then the face-to-face swings of the horizontal flaps 34a, 34b, 34c, 34d are performed. The operation is stopped, the air volume is set to the set air volume, and the horizontal flaps 34a, 34b, 34c, 34d are allowed to take the horizontal blowing posture to perform the fixing operation. For this reason, for example, when the cooling operation is started, the air volume is set as the set air volume (for example, the third air volume L), and the horizontal flaps 34a, 34b, 34c, 34d are controlled to take the horizontal blowing posture and perform the fixing operation. Compared with an air conditioner, the time required to make the temperature distribution in the room uniform can be shortened, and energy saving can be realized.

(6) Modification (6-1) Modification A
In the above embodiment, in the initial cooling control, the two horizontal flaps positioned facing each other among the four horizontal flaps 34a, 34b, 34c, and 34d are synchronously driven so as to swing while taking the same posture.

  Instead, in the initial cooling control, among the four horizontal flaps 34a, 34b, 34c, 34d, two horizontal flaps arranged at adjacent positions are synchronously driven so as to swing while taking the same posture. Also good.

  For example, when a control signal is transmitted from the initial cooling operation control unit 65, the wind direction control unit 63 includes two horizontal flaps 34a, 34b and other horizontal flaps among the four horizontal flaps 34a, 34b, 34c, 34d. Each drive motor 38a, 38b, 38c, 38d is controlled so that 34c, 34d swings in the opposite directions. At this time, the wind direction control unit 63 performs control to change the rotation direction of the other horizontal flaps 34c and 34d at the timing when the rotation direction of the two horizontal flaps 34a and 34b changes.

  Below, the attitude | position which a horizontal flap 34a, 34b, 34c, 34d takes by the initial cooling control in this modification is demonstrated using FIG. In FIG. 11, as an example, the horizontal flap 34a and the horizontal flap 34b that are adjacent to each other across the blowout port 37f of the decorative panel 36 perform a swing motion while taking the same posture at the same timing, and the blowout port 37h. The horizontal flap 34c and the horizontal flap 34d that are adjacent to each other with respect to each other are performing a swing motion while taking the same posture at the same timing. However, the combination of two horizontal flaps that perform a swing motion while adopting the same posture at the same timing is not limited to this, and the horizontal flap 34b and the horizontal flap 34c adjacent to each other across the blowout port 37g are driven synchronously, and the blowout is performed. The horizontal flap 34d and the horizontal flap 34a which are adjacent to each other with the opening 37e interposed therebetween may be driven synchronously. Here, the horizontal flap 34a and the horizontal flap 34b start to rotate before the horizontal flap 34c and the horizontal flap 34d. However, the present invention is not limited to this, and the horizontal flap 34c and the horizontal flap 34d are the horizontal flap. The rotation may be started before 34a and the horizontal flap 34b.

  First, the wind direction control unit 63 controls the driving of the drive motors 38a and 38b, so that the horizontal flaps 34a and 34b both close the blowing ports 37a and 37b (wind direction P0c) to the wind direction P1 through the wind direction P0. Rotate at the same rotation speed in the rotating direction, that is, in the downward direction. Accordingly, the wind direction angles of the horizontal flap 34a and the horizontal flap 34b reach the wind direction P1 from the wind direction P0 at the same timing. After the horizontal flaps 34a and 34b reach the wind direction P1, the rotation directions of the horizontal flaps 34a and 34b change from the downward direction to the upward direction. At this timing, the other horizontal flaps 34c and 34d are both blown out. The rotation (in other words, the downward rotation) is started from the state in which the mouths 37c and 37d are closed (wind direction P0c) to the wind direction P1. The horizontal flaps 34a and 34b are rotated upward at the same rotational speed, while the horizontal flaps 34c and 34d are rotated downward at the same rotational speed. At this time, the rotation speed of the horizontal flaps 34c and 34d is equal to the rotation speed of the horizontal flaps 34a and 34b.

  By repeating such an operation, when the horizontal flaps 34a and 34b are both rotated downward, the horizontal flaps 34c and 34d are both rotated upward and the horizontal flaps 34a and 34b are rotated. The wind direction angles of the horizontal flaps 34c and 34d simultaneously become the wind direction P0 at the timing when the wind direction angle becomes the wind direction P1 at the same time. On the contrary, when the horizontal flaps 34a and 34b are both turned upward, the horizontal flaps 34c and 34d are both turned downward, and the wind direction angle of the horizontal flaps 34a and 34b is simultaneously the wind direction P0. At this timing, the wind direction angles of the horizontal flaps 34c and 34d become the wind direction P1 at the same time. In the following, for convenience of explanation, a state in which the horizontal flaps 34a and 34b or the horizontal flaps 34c and 34d are performing the above-described swing operation while being synchronously driven is referred to as a diagonal swing state.

  In the heating operation, the inventor synchronizes two horizontal flaps adjacent to each other in the case of an all-synchronized swing state in which all the horizontal flaps are driven in synchronization to perform a swing operation. As a result of conducting an evaluation test on the effect of uniforming the temperature distribution in the room in the case of the diagonal swing state, which is the state in which the swing operation is performed, the following knowledge was obtained.

  It has been found that when a diagonal swing operation or a face-to-face swing operation is performed, a uniform temperature distribution is generated in a shorter time than when a fully synchronous swing operation is performed. Further, in order to make the temperature distribution in the room uniform, the heating operation is started for the first time after the heating operation is started (the compressor 21 is stopped when the suction temperature Tr reaches the set temperature Trs during the heating operation) The power consumption consumed by the entire air conditioner 10 by the time when the rotation of the fan 32 is stopped) is determined when the all-synchronous swing operation is performed and when the diagonal swing operation is performed. In comparison, the power consumption was about 30% smaller when the diagonal swing operation was performed than when the all-synchronous swing operation was performed. In addition, in order to make the indoor temperature distribution uniform, the power consumption consumed by the entire air conditioner 10 from the start of the heating operation to the first time when the heating thermo-off state is reached, when the all-synchronous swing operation is performed Compared with the case where the face-to-face swing operation is performed, the power consumption is about 40% smaller when the face-to-face swing operation is performed than when the all-synchronous swing operation is performed. For this reason, as a swing operation for making the temperature distribution in the room uniform, all the horizontal flaps 34a, 34b are driven synchronously with the horizontal flaps 34a, 34b, 34c, 34d located diagonally or facing each other. , 34c, and 34d are obtained in a manner that consumes less power and has a higher temperature distribution uniformity effect than the synchronous drive.

  Therefore, in the initial cooling control, when the diagonal swing operation is performed in which the horizontal flaps arranged at positions adjacent to each other take the same posture at the same timing, the horizontal flaps are synchronized. The room temperature distribution can be made uniform in a short time and a higher energy saving effect can be expected than when the all-synchronous swing operation is performed.

(6-2) Modification B
In the above embodiment, the indoor unit 30 included in the air conditioner 10 is a ceiling-embedded indoor unit. However, the indoor unit is not limited to this, and the indoor unit is suspended from a ceiling in which a casing is suspended from the ceiling. It may be an indoor unit of a type.

(6-3) Modification C
In the above-described embodiment, in the initial cooling control, the horizontal flaps 34a, 34b, 34c, 34d are caused to perform a face-to-face swing operation in order to make the temperature distribution in the room uniform as short as possible after the cooling operation is started, In addition, the fan motor 32a is controlled so that the air volume of the indoor fan 32 becomes the first air volume H. At the end of the initial cooling control, the facing swing operation of the horizontal flaps 34a, 34b, 34c, 34d is stopped, and all the horizontal flaps 34a, 34b, 34c, 34d perform the fixing operation while taking the horizontal blowing posture. The fan motor 32a is controlled so that the air volume of the indoor fan 32 is changed from the first air volume H to the set air volume.

  Instead, in the initial cooling control, after the indoor temperature distribution is made uniform, efficient control may be performed to further stabilize the indoor temperature.

  Here, the inventor of the horizontal flaps 34 a, 34 b, 34 c, 34 d after the average room temperature reaches the set temperature Trs after starting the cooling operation under the same conditions as in the evaluation test, that is, in the stable period. The power consumption when the cooling operation is performed with the state set to the horizontal blowing fixed state and the air volume set to the first air volume H, and the state of the horizontal flaps 34a, 34b, 34c, and 34d set to the horizontal blowing fixed state and the air volume set to the second air volume. As a result of comparing the power consumption consumed when the cooling operation is performed as M, the power consumption of the first air volume H was found to be smaller than the power consumption of the second air volume M. This is considered to be because, in the stable period, as the air volume of the indoor fan 32, the first air volume H has better heat exchange efficiency than the second air volume M. The inventor pays attention to this point, and in the initial cooling control, until the predetermined time elapses after the state of the horizontal flaps 34a, 34b, 34c, 34d is switched from the facing swing state to the horizontal blowing fixed state. By setting the air volume to the first air volume H, the state of the horizontal flaps 34a, 34b, 34c, 34d is switched from the facing swing state to the horizontal blowing fixed state, and at the same time, the air volume is set by the user (for example, the second air volume). As compared with the case of air volume M), the inventors have found that the indoor temperature can be stabilized and the power consumption can be suppressed.

  Hereinafter, using FIG. 12 and FIG. 13, a predetermined time elapses after the state of the horizontal flaps 34a, 34b, 34c, and 34d is switched from the facing swing state to the horizontal blowing fixed state at the start of the cooling operation. Until now, the air conditioner 10 in which the initial cooling control in which the first air volume H is maintained will be described. FIG. 12 (a) is a diagram showing the state of the horizontal flaps 34a, 34b, 34c, 34d and the air volume of the indoor fan 32 in the initial period and the period after the initial period of the above embodiment, and FIG. These are figures which show the state of the horizontal flaps 34a, 34b, 34c, 34d and the air volume of the indoor fan 32 in the initial period and the period after the initial period of this modification. In FIG. 12B, for convenience of explanation, the initial period in which the initial cooling control is executed is performed in the first period in which the face-to-face swing operation is performed by the horizontal flaps 34a, 34b, 34c, and 34d, and the fixed operation is performed. Divided into the second period. The first period is a period corresponding to the initial period of the above-described embodiment, and is a period between the time when the cooling operation is started and the time when the optimum time obtained experimentally in advance elapses. It is. Further, the second period is a period after the first period, and the number of times that the cooling thermo-on state and the cooling thermo-off state are switched after the optimum time has elapsed is a predetermined number of times (for example, 2 times or 3 times). ) It is a period until it becomes above. Furthermore, in this modification, the initial cooling operation control unit 65 determines whether or not the cooling thermo-on state has been switched to the cooling thermo-off state.

  Next, the control operation by the initial cooling operation control unit 65 in this modification will be described. (See FIG. 13).

  When the initial cooling operation control unit 65 receives the cooling operation start instruction signal transmitted from the receiving unit 61 (step S11), the initial cooling operation control unit 65 starts executing the initial cooling control. Specifically, the initial cooling operation control unit 65 receives the cooling operation start instruction signal transmitted from the receiving unit 61 that has been received by the user in the room and has received the cooling operation start instruction. Starts execution of the initial cooling control.

  In the initial cooling control, the initial cooling operation control unit 65 first transmits a wind direction change signal related to the face-to-face swing operation to the wind direction control unit 63 and transmits an air volume change signal to the air volume control unit 62 (step S12). The wind direction control unit 63 to which the wind direction change signal related to the face-to-face swing operation is transmitted from the initial cooling operation control unit 65, the drive motors 38a, 38b, and 38c so that the horizontal flaps 34a, 34b, 34c, and 34d are in the face-to-face swing state. , 38d. In addition, the air volume control unit 62 to which the air volume change signal is transmitted from the initial cooling operation control unit 65 causes the fan motor so that the air volume of the indoor fan 32 is not the set air volume set by the user but the first air volume H. The rotational speed of 32a is controlled.

  Then, when the optimum time has elapsed since the transmission of the wind direction change signal and the air volume change signal related to the face-to-face swing operation in step S12 (step S13), the initial cooling operation control unit 65 sends the wind direction change signal related to the fixed operation in the horizontal blowing posture. Is transmitted to the wind direction control unit 63 (step S14). The wind direction control unit 63 to which the wind direction change signal related to the fixing operation in the horizontal blowing posture is transmitted from the initial cooling operation control unit 65 so that all the horizontal flaps 34a, 34b, 34c, 34d are in the horizontal blowing fixed state. The drive motors 38a, 38b, 38c, and 38d are controlled. Thereby, the state of each horizontal flap 34a, 34b, 34c, 34d switches from the swing state in which the wind direction is automatically changed to the horizontal blowing fixed state in which the wind direction is maintained at the wind direction P0. The initial cooling operation control unit 65 transmits the wind direction change signal and the air volume change signal related to the face-to-face swing operation to the wind direction control unit 63 until the optimum time elapses. Do not send.

  If it is determined in step S14 that the state has been switched from the cooling thermo-on state to the cooling thermo-off state a predetermined number of times (for example, two times) or more after transmitting the wind direction change signal related to the fixing operation in the horizontal blowing posture (step S15). The cooling operation control unit 65 transmits an air volume change release signal to the air volume control unit 62 (step S16). The air volume control unit 62 to which the air volume change release signal is transmitted from the initial cooling operation control unit 65 controls the fan motor 32a, so that the air volume of the indoor fan 32 is set by the user from the first air volume H. Change to Thereby, the initial cooling control by the initial cooling operation control unit 65 ends. The initial cooling operation control unit 65 transmits a wind direction change signal related to the fixing operation in the horizontal blowing posture in step S15, and then the state is switched from the cooling thermo-on state to the cooling thermo-off state a predetermined number of times (for example, twice) or more. The air volume change cancel signal is not transmitted to the air volume control unit 62 until it is determined that the

  As described above, the state of the horizontal flaps 34a, 34b, 34c, and 34d is switched from the facing swing state to the horizontal blowing fixed state, so that after the cooling operation is started and the indoor temperature distribution becomes uniform, It can be made difficult to collect near the floor surface in the room. In the initial cooling control, the fan is configured such that the air volume becomes the first air volume H until a predetermined time elapses after the horizontal flaps 34a, 34b, 34c, 34d are switched from the facing swing state to the horizontal blow fixed state. By controlling the motor 32a, for example, the fan motor 32a is controlled so that the state of the horizontal flaps 34a, 34b, 34c, 34d is switched from the facing swing state to the horizontal blowing fixed state and at the same time the air amount becomes the second air amount M. Compared with the case where it is, the electric power consumed in the air conditioner 10 can be suppressed.

(6-4) Modification D
In the above embodiment, the length of the initial period, which is the period in which the initial cooling control is executed, is set to the optimal time obtained experimentally in advance.

  Instead, the length of the initial period may be determined according to the indoor environment in which the indoor unit 30 is installed. For example, the length of the initial period may be determined by learning past driving performance.

  Here, from the results of the evaluation test, the present inventor firstly started the cooling operation at the time when 16 minutes and 40 seconds had elapsed from the start of the cooling operation in the face-to-face swing state and the cooling operation in the horizontal blowing fixed state. It was found that the time point when the cooling thermo-on state switches to the cooling thermo-off state almost coincides. For this reason, the inventor according to the room in which the indoor unit 30 is installed from the time required from the start of the cooling operation in the horizontal blowing fixed state to the switching from the cooling thermo-on state to the cooling thermo-off state. It was found that the duration of the face-to-face swing movement, that is, the length of the initial period can be determined.

  Hereinafter, in the initial cooling control, the length of the initial period, that is, the time during which the face-to-face swing operation is executed (in the above embodiment, the time corresponding to the optimum time) is determined based on the past operation results. The harmony machine 10 will be described. In the present modification, the configuration other than the control unit 160 is the same as that in the above embodiment, and therefore the configuration other than the control unit 160 will be described using the same reference numerals as in the above embodiment.

  The control unit 160 is a microcomputer including a CPU and a memory, and controls operations of various devices included in the indoor unit 30 and the outdoor unit 20. Further, as shown in FIG. 14, the control unit 160 includes a reception unit 161, an air volume control unit 162, an air direction control unit 163, and an initial cooling operation control unit 165. In addition, since the structure of the receiving part 161, the air volume control part 162, and the wind direction control part 163 is the same structure as the said embodiment, description is abbreviate | omitted.

  The initial cooling operation control unit 165 performs initial cooling control at the start of the cooling operation. Further, the initial cooling operation control unit 165 performs the initial cooling control when the user sets the automatic control mode. Furthermore, the initial cooling operation control unit 165 has a learning unit 166 that determines the learning operation time that is the execution time (length of the initial period) of the face-to-face swing operation in the initial cooling control by learning the past operation results. doing.

  The initial cooling operation control unit 165 determines whether learning by the learning unit 166 is necessary when a cooling operation start instruction signal is transmitted from the receiving unit 161. The initial cooling operation control unit 165 counts from the time when the learning operation time is determined by the learning unit 166, and the number of switching between the cooling thermo-on state and the cooling thermo-off state becomes a predetermined number (for example, 30 times) or more. In this case, the learning unit 166 determines that the learning driving time needs to be determined. That is, the initial cooling operation control unit 165 performs learning when the number of times of switching between the cooling thermo-on state and the cooling thermo-off state is less than a predetermined number from the time when the learning operation time is determined by the learning unit 166. It determines with the determination of the learning driving | operation time by the part 166 not being required. If it is determined that learning by the learning unit 166 is not necessary, initial cooling control is started.

  In the initial cooling control, the initial cooling operation control unit 165 first starts the horizontal flaps 34a, 34b, 34c, 34d and starts the facing swing operation, and the air direction of the indoor fan 32 becomes the first air volume H. Control signals are transmitted to the control unit 163 and the air volume control unit 162. Next, the initial cooling operation control unit 165 stops the face-to-face swing operation of the horizontal flaps 34a, 34b, 34c, 34d when the learning operation time determined by the learning unit 166 has elapsed since the start of the cooling operation, A control signal is transmitted to the wind direction control unit 163 so that all the horizontal flaps 34a, 34b, 34c, 34d start the fixing operation while adopting the horizontal blowing posture, and the air volume of the indoor fan 32 is changed from the first air volume H by the user. By transmitting a control signal to the air volume control unit 162 so that the set air volume has been set, the initial cooling control is terminated.

  When a control signal is transmitted from the initial cooling operation control unit 165, the wind direction control unit 163, like the above-described embodiment, has two horizontal flaps (for example, four horizontal flaps 34a, 34b, 34c, 34d) (for example, , The horizontal flaps 34a, 34c) and the other horizontal flaps (for example, 34b, 34d) are controlled such that the drive motors 38a, 38b, 38c, 38d swing in opposite directions.

  The learning unit 166 determines the learning operation time when the initial cooling operation control unit 165 determines that the learning operation time needs to be determined. Note that the learning driving time is stored in a storage unit (not shown) every time it is determined by the learning unit 166.

  Further, the learning unit 166, when the cooling operation is performed with all the horizontal flaps 34a, 34b, 34c, 34d being in the horizontal blowing fixed state, the time during which the cooling thermo-on state is continued, that is, the cooling thermo-off from the start of the cooling operation. The cooling thermo-on continuation time until the state is reached is measured, and the learning operation time is determined using the measured cooling thermo-on continuation time.

  Here, the initial cooling operation control unit 165 determines whether it is necessary to determine the learning operation time by the learning unit 166, and the learning operation time is determined by the learning unit 166 based on the determination. However, the learning operation time may be determined by the learning unit 166 only during a test operation performed when the indoor unit 30 is installed indoors. For example, the initial cooling operation control unit 165 may determine that the learning operation time 166 needs to be determined by the learning unit 166 at a preset time (for example, 13:00). Further, for example, when the initial cooling operation control unit 165 has passed a predetermined time (for example, 24 hours) since the learning operation time was determined by the learning unit 166 last time, the learning operation time by the learning unit 166 is It may be determined that the determination is necessary.

  Next, the control operation by the initial cooling operation control unit 165 will be described with reference to FIGS. 15 and 16. Note that, as described above, the initial cooling operation control unit 165 performs the initial cooling control only when the cooling operation is started and the automatic control mode is set by the user. That is, even when the heating operation is started or the cooling operation is started, the initial cooling control by the initial cooling operation control unit 165 is not executed if the user has set the manual control mode.

  When the initial cooling operation control unit 165 receives the cooling operation start instruction signal transmitted from the reception unit 161 (step S101), the initial cooling operation control unit 165 determines whether or not the learning operation time needs to be determined by the learning unit 166 ( Step S102). Specifically, the initial cooling operation control unit 165 receives the cooling operation start instruction signal transmitted from the reception unit 161 that is received by the user who is indoors and receives the cooling operation start instruction. Determines whether the learning operation time needs to be determined by the learning unit 166.

  When the initial cooling operation control unit 165 determines that the learning operation time needs to be determined, the learning unit 166 determines the learning operation time (step S120). Specifically, the learning unit 166 transmits a wind direction change signal related to the fixing operation in the horizontal blowing posture to the wind direction control unit 163 and transmits an air volume change signal to the air volume control unit 162 (step S121). Further, the learning unit 166 starts counting of a timer (not shown) at the same time as transmitting a wind direction change signal and an air volume change signal related to the fixing operation in the horizontal blowing posture (step S122). The wind direction control unit 163 to which the wind direction change signal related to the fixing operation in the horizontal blowing posture is transmitted from the initial cooling operation control unit 165 is driven so that the horizontal flaps 34a, 34b, 34c, and 34d are in the horizontal blowing fixed state. The motors 38a, 38b, 38c, and 38d are controlled. In addition, the air volume control unit 162 to which the air volume change signal is transmitted from the initial cooling operation control unit 165 causes the fan motor 32a so that the air volume of the indoor fan 32 becomes the first air volume H instead of the set air volume set by the user. Control the number of revolutions. When the learning unit 166 determines that the cooling thermo-on state has been switched to the cooling thermo-off state after transmitting the wind direction change signal and the air volume change signal related to the fixing operation in the horizontal blowing posture (step S123), measurement is performed with a timer. The cooling thermo-on continuation time is compared with a time (for example, 16 minutes and 40 seconds) preset as the optimum time (step S124). As a result of comparing the time measured by the timer in step S124 with the optimum time, if the time measured by the timer is shorter than the optimum time, the learning unit 166 determines the measured time as the learning operation time (step S125). . If the time measured by the timer in step S124 is compared with the optimum time, and the time measured by the timer is longer than the optimum time, the learning unit 166 sets the preset optimum time as the learning operation time. Determination is made (step S126). Thereby, the learning driving time is determined by the learning unit 166. In addition, after determining the learning operation time, the learning unit 166 transmits an air volume change release signal to the air volume control unit 162 (step S127).

  If the initial cooling operation control unit 165 determines in step S102 that it is not necessary to determine the learning operation time by the learning unit 166, the initial cooling control starts. Specifically, the initial cooling operation control unit 165 transmits a wind direction change signal related to the face-to-face swing operation to the wind direction control unit 163 and transmits an air volume change signal to the air volume control unit 162 (step S103). The wind direction control unit 163 to which the wind direction change signal related to the face-to-face swing operation is transmitted from the initial cooling operation control unit 165, the drive motors 38a, 38b, and 38c so that the horizontal flaps 34a, 34b, 34c, and 34d are in the face-to-face swing state. , 38d. In addition, the air volume control unit 162 to which the air volume change signal is transmitted from the initial cooling operation control unit 165 causes the fan motor so that the air volume of the indoor fan 32 becomes the first air volume H instead of the set air volume set by the user. The rotational speed of 32a is controlled.

  When the learning operation time determined by the learning unit 166 has elapsed after transmitting the wind direction change signal and the air volume change signal related to the face-to-face swing operation in step S103 (step S104), the initial cooling operation control unit 165 cancels the wind direction change. A signal is transmitted to the wind direction control unit 163, and an air volume change release signal is transmitted to the air volume control unit 162 (step S105). The wind direction control unit 163 to which the wind direction change release signal is transmitted from the initial cooling operation control unit 165 has the drive motors 38a, 38b, and so on so that all the horizontal flaps 34a, 34b, 34c, 34d are in the horizontal blowing fixed state. 38c and 38d are controlled. Further, the air volume control unit 162 to which the wind direction change release signal is transmitted from the initial cooling operation control unit 165 controls the fan motor 32a, so that the air volume of the indoor fan 32 is set by the user from the first air volume H. Change to the set air volume. Thereby, the initial cooling control by the initial cooling operation control unit 165 is completed. Note that the initial cooling operation control unit 165 does not transmit the wind direction change cancellation signal and the air volume change cancellation signal until the learning operation time has elapsed after transmitting the wind direction change signal and the air volume change signal regarding the facing swing operation (step S104). ).

  Thus, since the learning operation time which is the length of the initial period is determined using the time measured in advance (the time during which the cooling thermo-on state measured by the timer is continued), for example, the length of the initial period Compared with the case where the length is set in advance, the execution time of the face-to-face swing operation according to the indoor environment in which the indoor unit 30 is installed can be determined.

  Further, in the present modification, the learning unit 166 compares the cooling thermo-on duration time measured by the timer with a time (for example, 16 minutes and 40 seconds) set in advance as the optimum time, and determines either time. Although the learning driving time is determined, the object to be compared with the optimum time for determining the learning driving time is not limited to this.

  Here, from the result of the evaluation test, the inventor has started the cooling operation in the horizontal blowing fixed state after 16 minutes and 40 seconds as the execution duration time (optimal time) of the face-to-face swing operation in the embodiment. It was found that approximately 60% of the time required for the average room temperature to reach the set temperature Trs (temperature distribution homogenization period) was approximately the same. For this reason, the present inventor pays attention to this point, so that the object to be compared with the time preset as the optimum time for determining the learning operation time is set to 60 of the cooling thermo-on duration time measured by the timer. % Of the time (60% to 100%) was obtained. For example, in step S124 of this modification, the time obtained by multiplying the time measured by the timer by 0.6 (time measured by the timer × 0.6) is compared with the optimum time, and as a result, the time measured by the timer. When the time multiplied by 0.6 is shorter than the optimum time, the learning unit 166 determines a time obtained by multiplying the measured time by 0.6 as the learning operation time. In step S124, when the time measured by the timer multiplied by 0.6 is compared with the optimum time, if the time measured by the timer multiplied by 0.6 is longer than the optimum time, learning is performed. Unit 166 determines the optimum time set in advance as the learning operation time. In this way, the learning driving time may be determined by the learning unit 166.

(6-5) Modification E
FIG. 17 shows changes in temperature when the air conditioner 10 is allowed to perform a cooling operation with the horizontal flaps 34 a, 34 b, 34 c, 34 d of the indoor unit 30 installed in the test chamber in a face-to-face swing state.

  In the above-described embodiment, the end point of the initial period, which is the period in which the initial cooling control is executed, is set to the time point when the optimum time experimentally obtained in advance has elapsed since the start of the cooling operation.

  By the way, the present inventor starts cooling operation in the face-to-face swing state based on the result of the suction temperature Tr detected by the suction temperature sensor T1 when the cooling operation is started in the face-to-face swing state under the same conditions as the evaluation test. Then, it was found that the timing at which 16 minutes and 40 seconds elapse and the timing at which the suction temperature Tr falls below the temperature (Trs-1) that is one degree lower than the set temperature Trs substantially coincide (see FIG. 17). The inventor has found that the detection result by the suction temperature Tr can be used as an alternative means for determining the end point of the initial period by paying attention to this point.

  Hereinafter, the air conditioner 10 in which the time during which the face-to-face swing operation is performed in the initial cooling control (the time corresponding to the optimum time in the above embodiment) is determined from the suction temperature Tr and the set temperature Trs will be described. In the present modification, the configuration other than the control unit 260 is the same as that in the above embodiment, and therefore the configuration other than the control unit 260 will be described using the same reference numerals as in the above embodiment.

  The control unit 260 is a microcomputer including a CPU and a memory, and controls operations of various devices included in the indoor unit 30 and the outdoor unit 20. As shown in FIG. 18, the control unit 260 includes a reception unit 261, an air volume control unit 262, an air direction control unit 263, and an initial cooling operation control unit 265. In addition, since the structure of the receiving part 261, the air volume control part 262, and the wind direction control part 263 is the same structure as the said embodiment, description is abbreviate | omitted.

  The initial cooling operation control unit 265 performs initial cooling control at the start of the cooling operation. Further, the initial cooling operation control unit 265 performs the initial cooling control when the automatic control mode is set. Furthermore, the initial cooling operation control unit 265 includes a determination unit 266 that determines the timing for stopping the face-to-face swing operation by the horizontal flaps 34a, 34b, 34c, and 34d in the initial cooling control.

  The determination unit 266 determines the timing for stopping the facing swing operation in the initial cooling control based on the suction temperature Tr transmitted from the suction temperature sensor T1 and the set temperature Trs preset by the user. Specifically, the determination unit 266 determines that the indoor temperature distribution is uniform when the suction temperature Tr is equal to or less than a value obtained by subtracting 1 degree from the set temperature Trs (Tr ≦ Trs−1). Then, the determining unit 266 determines the timing when the facing swing operation is stopped, that is, the end point of the initial period, when it is determined that the indoor temperature distribution is uniform. In addition, when the suction temperature Tr is higher than the value obtained by subtracting 1 degree from the set temperature Trs (Tr> Trs−1), the determination unit 266 determines that the indoor temperature distribution is not uniform. The determination unit 266 determines whether or not the indoor temperature distribution is uniform until the end point of the initial period is determined after the cooling operation is started, that is, the indoor temperature distribution is uniform. This is performed every predetermined time (for example, 20 seconds) until it is determined that the

  Further, in the initial cooling control, the initial cooling operation control unit 165 first causes the horizontal flaps 34a, 34b, 34c, and 34d to start a face-to-face swing operation, and the air volume of the indoor fan 32 becomes the first air volume H. The control signal is transmitted to the wind direction control unit 263 and the air volume control unit 262. Then, the initial cooling operation control unit 265 performs the face-to-face swing operation of the horizontal flaps 34a, 34b, 34c, and 34d when the determining unit 266 determines that the temperature distribution in the room is uniform after the cooling operation is started. And the control signal is transmitted to the wind direction control unit 263 so that all the horizontal flaps 34a, 34b, 34c, 34d start the fixing operation while adopting the horizontal blowing posture, and the air volume of the indoor fan 32 is the first air volume. The initial cooling control is completed by transmitting a control signal to the air volume control unit 262 so that the set air volume set by the user from H is obtained.

  When a control signal is transmitted from the initial cooling operation control unit 265, the wind direction control unit 263, as in the above-described embodiment, has two horizontal flaps (for example, four horizontal flaps 34a, 34b, 34c, 34d) (for example, , The horizontal flaps 34a, 34c) and the other horizontal flaps (for example, 34b, 34d) are controlled such that the drive motors 38a, 38b, 38c, 38d swing in opposite directions.

  Next, the control operation by the initial cooling operation control unit 265 will be described with reference to FIG. Note that, as described above, the initial cooling operation control unit 265 executes the initial cooling control only when the cooling operation is started and the automatic control mode is set by the user. That is, even when the heating operation is started or the cooling operation is started, the initial cooling control by the initial cooling operation control unit 265 is not executed when the manual control mode is set by the user.

  When the initial cooling operation control unit 265 receives the cooling operation start instruction signal transmitted from the receiving unit 261 (step S201), the initial cooling operation control unit 265 starts executing the initial cooling control. Specifically, the initial cooling operation control unit 265 receives the cooling operation start instruction signal transmitted from the receiving unit 261 that has been received by the user in the room and has received the cooling operation start instruction, so that the initial cooling operation control unit 265 is received. Starts execution of the initial cooling control.

  In the initial cooling control, the initial cooling operation control unit 265 first transmits a wind direction change signal related to the face-to-face swing operation to the wind direction control unit 263 and transmits an air volume change signal to the air volume control unit 262 (step S202). The wind direction control unit 263 to which the wind direction change signal related to the face-to-face swing operation is transmitted from the initial cooling operation control unit 265, the drive motors 38a, 38b, and 38c so that the horizontal flaps 34a, 34b, 34c, and 34d are in the face-to-face swing state. , 38d. In addition, the air volume control unit 262 to which the air volume change signal is transmitted from the initial cooling operation control unit 265 is configured so that the air volume of the indoor fan 32 becomes the first air volume H instead of the set air volume set by the user. The rotational speed of 32a is controlled.

  In step S202, when the determining unit 266 determines that the temperature distribution in the room is uniform after transmitting the wind direction change signal and the air volume change signal regarding the face-to-face swing operation (step S203), the initial cooling operation control unit 265 The wind direction change cancellation signal is transmitted to the wind direction control unit 263, and the air volume change cancellation signal is transmitted to the air volume control unit 262 (step S204). The wind direction control unit 263 to which the wind direction change release signal is transmitted from the initial cooling operation control unit 265, the drive motors 38a, 38b, and so on so that all the horizontal flaps 34a, 34b, 34c, 34d are in the horizontal blowing fixed state. 38c and 38d are controlled. Further, the air volume control unit 262 to which the wind direction change release signal is transmitted from the initial cooling operation control unit 265 controls the fan motor 32a, so that the air volume of the indoor fan 32 is set by the user from the first air volume H. Change to the set air volume. Thereby, the initial cooling control by the initial cooling operation control unit 265 is completed. The initial cooling operation control unit 265 transmits the wind direction change signal and the air volume change signal related to the face-to-face swing operation until the determination unit 266 determines that the indoor temperature distribution is uniform, The air volume change release signal is not transmitted (step S203).

  Thus, by determining the end point of the initial period based on the detection result of the suction temperature Tr, it is possible to execute the initial cooling control according to the indoor environment.

  In this modification, the end point of the initial period is determined to be a time point when the temperature distribution in the room is determined to be uniform by the determining unit 266. However, the present invention is not limited to this. It may be the time when the set optimum time has passed or the time when the determining unit 266 determines that the indoor temperature distribution is uniform, whichever comes first. Further, by combining the modification D and the present modification, the end point of the initial period is the end point of the learning operation time of the modification D or the time point when the temperature distribution in the room of the modification is determined to be uniform. It may be the earlier time.

  Further, in the above modification, at the end of the initial cooling control, a control signal is transmitted to the wind direction control unit 63 so that the horizontal flaps 34a, 34b, 34c, 34d are in the horizontal blowing fixed state, and the indoor fan 32 The control signal is transmitted to the air volume control unit 62 so that the air volume of the air volume becomes the set air volume set by the user from the first air volume H. Instead, as in Modification C, after the state of the horizontal flaps 34a, 34b, 34c, 34d is switched from the facing swing state to the horizontal blowing fixed state, the cooling thermo-on state is changed to the cooling thermo-off state a predetermined number of times (for example, (2 times) The initial cooling control in which the first air volume H is maintained may be executed until switching.

  In the above modification, when the suction temperature Tr is equal to or less than the value obtained by subtracting 1 degree from the set temperature Trs, the determining unit 266 determines that the indoor temperature distribution is uniform, The method for determining that the temperature distribution is uniform is not limited to this. For example, the determination unit 266 of the indoor unit 30 may determine that the indoor temperature distribution is uniform in cooperation with a wireless sensor network that detects the temperatures of a plurality of locations in the room. Further, for example, when the air conditioner 10 includes a floor temperature sensor that can detect the floor surface temperature in the room where the indoor unit 30 is installed, the suction temperature Tr detected by the suction temperature sensor T1 and the floor When the floor temperature detected by the temperature sensor is substantially the same (for example, ± 0.5 ° C.), the determination unit 266 may determine that the temperature distribution in the room is uniform.

  Since the present invention can improve the comfort of the user by shortening the time required to make the temperature distribution in the air-conditioned room uniform after the cooling operation is started, the air-conditioner installed near the ceiling Application to indoor units is effective.

30 Indoor unit (air conditioner indoor unit)
32 Indoor fans (fans)
34a Horizontal flap (first flap / flap)
34b Horizontal flap (second flap / flap)
34c Horizontal flap (first flap / flap)
34d Horizontal flap (second flap / flap)
36 Makeup Panel (Blowout Section)
37 Outlet 37a Outlet (first outlet)
37b Outlet (second outlet)
37c Outlet (third outlet)
37d outlet (fourth outlet)
65 Initial cooling operation control unit (control unit)
166 Learning unit 264 Determination unit T1 Suction temperature sensor (temperature sensor)

JP2001-132976A

Claims (3)

A blowout part (36) which is arranged near the ceiling of the air-conditioning room and has a blowout opening (37);
A first flap and a second flap (34a, 34b, 34c, 34d) which are provided at the outlet and are capable of independently changing the vertical wind direction angle;
In the initial period from the cooling operation is started until a predetermined time elapses, a control unit for executing initial cooling control to perform different swing operation on the first flap and the second flap,
With
The outlets are elongated first outlets (37a), second outlets (37b), third outlets (37c), and fourth outlets (37d) arranged along four sides of the quadrangle. )
The first flaps (34a, 34c) are positioned so as to face each other, and are two flaps disposed at the first outlet and the third outlet,
The second flap (34b, 34d) is positioned so as to face each other, are two flaps der disposed in the second outlet and the fourth outlet,
The controller is
A learning unit (166) that determines the length of the initial period by learning past driving performance,
Air conditioning indoor unit (30). The controller starts the swing operations of the first flap and the second flap at different timings in the initial cooling control,
The air conditioning indoor unit according to claim 1. A fan (32) that generates an air flow that is blown out from the outlet by driving;
The control unit drives the fan so that the air volume of the fan is maximized in the initial cooling control.
The air conditioning indoor unit according to claim 1 or 2.

Images