JP5856473B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner including a lower wind direction plate that controls the wind direction in the vertical direction.

  The wall-mounted air conditioner is provided near the ceiling and includes a wind direction adjusting plate (up and down wind direction plate) that adjusts the vertical blowing direction of the conditioned air. Up and down wind direction, such as continuously swinging the up and down air direction plate to change the blowing direction of the conditioned air continuously in the up and down direction, or making the up and down wind direction plate in a substantially horizontal direction to make the temperature distribution in the indoor space uniform The airflow distribution in the room is adjusted by the board.

If the up-and-down wind direction plate is fixed in the horizontal direction during cooling operation, the conditioned air blown horizontally from the vicinity of the ceiling is approximately half the living space below the room space (ceiling height 2.7m, height 1. In the case of 7m, the space from the floor to a height of about 63% does not reach directly, but hits a wall. After that, the air-conditioned air that hits the walls, etc., decreases in wind speed, moves downward due to its high density, and reaches the living space. The user can feel coolness by the temperature of the conditioned air, but cannot obtain the coolness of the airflow from the conditioned air whose wind speed has dropped. This can be explained by the following equation.
Q = α (TS−TA) (Formula 1)
Q = heat dissipation [W / m ² ]
α = Convective heat transfer coefficient [W / m ² ° C]
TS = skin temperature [° C]
TA = air temperature [° C]

However, there are four types of heat dissipation paths from the human body: convection, radiation, evaporation, and conduction. (Equation 1) indicates the heat dissipation amount for only the convection among these four types. initially,
Q total = Q convection + Q radiation + Q evaporation + Q conduction (Formula 2)
And the bigger the Q synthesis, the cooler you feel. For simplicity, Q convection, which is the amount of heat released by convection, is described as Q unless otherwise specified.

  The greater the heat dissipation amount Q, the greater the coolness. The coolness of the conditioned air in (Expression 1) is due to the fact that (TS-TA) increases and the heat dissipation amount Q increases as the air temperature TA decreases. The coolness due to the airflow in (Expression 1) is represented by the convective heat transfer coefficient α. The larger the air velocity, the greater the convective heat transfer coefficient α. As a result, the heat dissipation amount Q is also increased, and a cooler feeling can be felt.

  However, in the conventional air conditioner, the air flow speed is increased, and as a result, in order to avoid the discomfort from the cold caused by the excessive heat dissipation amount Q, control is performed so that the conditioned air is blown out horizontally during cooling. However, the occupants may feel hot and uncomfortable due to the small amount of heat release due to the low air velocity. On the other hand, in the conventional air conditioner, the cooling by airflow is provided by swinging the vertical airflow direction plate in the vertical direction and continuously blowing conditioned air having a large airflow velocity into the living space. However, since the heat radiation amount is continuously large, the occupant may feel cold and uncomfortable.

  On the other hand, Patent Document 1 temporarily describes an air conditioning mechanism that performs an air conditioning process on indoor air, a wind direction adjusting plate that adjusts a blowing direction of the air that has been conditioned, and a processing capacity of the air conditioning mechanism. And a control unit capable of performing powerful driving to raise automatically and a storage unit for storing a setting value of the direction of the wind direction adjusting plate determined so that air blows in the direction in which the person is present The section discloses an air conditioner that switches to a first control that controls the direction of the wind direction adjusting plate according to a set value when an instruction input for a powerful operation is made. By blowing air-conditioned air toward the user in the room, the heat radiation amount is increased and the air-conditioning state can be felt cool.

  Patent Document 2 discloses an air conditioning mechanism that performs an air conditioning process on indoor air, a wind direction adjusting plate that adjusts the blowing direction of the air that has been conditioned, and a powerful system that temporarily increases the processing capacity of the air conditioning mechanism. A control unit capable of operation and a human sensor are provided, and during the cooling operation, the control unit swings the wind direction adjusting plate in the vicinity of the substantially horizontal direction during normal operation, and an instruction for powerful operation is input. Then, the air conditioner which changes the swing range of a wind direction adjustment board so that the direction where a person exists based on the information from a person detection sensor is included is disclosed. By blowing the conditioned air toward the user, the heat radiation amount is increased, and the air-conditioning state in which coolness can be felt is obtained.

  Patent Document 3 controls the compressor according to at least the comparison result between the room temperature and the set temperature, controls the direction of the wind blown into the room with the wind direction plate, and can automatically change the angle of the wind direction plate. It is an air conditioner which makes it possible to vary the upper limit value of the operating frequency of the compressor (the number of rotations of the compressor) according to the direction of the wind direction plate.

  However, even in the swing operation, the heat dissipation amount Q continuously increases due to the continuous operation. The continuous increase in the heat dissipation amount Q causes discomfort due to cold. In Patent Documents 1 and 2, the swing direction is adjusted so as to include the user in the conditioned air blowing direction. However, since the user is continuously exposed to the conditioned air, there is a possibility that the increase in Q may cause discomfort due to cold. There is.

  Further, in Patent Document 1 and Patent Document 2, the swing direction control is performed during the powerful operation in which the rotation speed of the indoor fan and the rotation speed of the compressor are higher than those during the normal operation, and the power consumption is higher than that during the normal operation. Moreover, in patent document 3, since the compressor rotation speed is made variable according to the wind direction, when the wind direction is the normal position, the power consumption amount is not different from that in the normal operation.

Japanese Patent No. 3815470 Japanese Patent No. 4215035 Japanese Patent No. 2757734

  The present invention suppresses discomfort caused by no airflow and continuous airflow, can be used as a living space with excellent comfort, and can reduce power consumption without impairing comfort. It is an object to provide a machine.

The air conditioner of the present invention includes an air inlet and an air outlet, a blower fan that sucks indoor air from the air inlet and blows out air-conditioned air from the air outlet, and deflects the conditioned air in the vertical direction. Up / down wind direction means, left / right wind direction means for deflecting conditioned air in the left / right direction, human detection means for detecting a person's position, and up / down wind direction means in a range narrower than the range in which the up / down wind direction means can move to the maximum during cooling operation. Swing and repeat the first state in which the conditioned air is directed in a direction in which no person is located by the up and down wind direction means and the second state in which the conditioned air is directed in a direction including the position of the person detected by the person detecting means by the up and down wind direction means, and a swing operation room to the air conditioner indoor air so that the temperature higher than the set temperature set by the human, indoor floors, walls, or, as the radiation thermometer from the ceiling is high, cooling operation To reduce the difference between the room temperature and the setting temperature when the swing operation.

  According to the present invention, the present invention suppresses discomfort due to no airflow and continuous airflow, and can make a living space excellent in comfort and reduce power consumption without impairing comfort. The air conditioner which can be provided can be provided.

The external appearance block diagram of an air conditioner. The sectional side view of an indoor unit. Up-and-down wind direction board in the case of fixed position balloon. Up-and-down wind direction board for swing balloon. Overview of intermittent swing operation when there is one swing. Overview of intermittent swing operation when there are multiple swings. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. The figure which shows the relationship between a swing speech balloon and a fixed position speech balloon. An example of 1-degree pitch control. An example of quadratic control. Example of ramp change.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. First, the whole structure of an air conditioner is demonstrated using FIG. FIG. 1 is an external configuration diagram of an air conditioner.

  An air conditioner that harmonizes the air in the room includes an indoor unit installed indoors, an outdoor unit installed outdoors, an air conditioning setting device (remote control) that sets the operation mode of the air conditioner, an indoor unit, and an outdoor unit. And a connecting pipe that connects the two.

  The outdoor unit includes a compressor, an outdoor blower, an outdoor heat exchanger, and the like. The compressor of the outdoor unit and the outdoor heat exchanger are connected to a heat exchanger (see FIG. 2) of the indoor unit, which will be described later, by two refrigerant pipes of the connection pipe, and constitute a refrigeration cycle by circulating the refrigerant. .

  Next, the indoor unit which comprises an air conditioner is demonstrated using FIG. FIG. 2 is a side sectional view of the indoor unit. The indoor unit is composed of an indoor heat exchanger at the center of the casing base, a cross-flow fan blower fan having a length substantially equal to the width of the indoor heat exchanger downstream of the indoor heat exchanger, and an indoor heat exchanger. A dew receiving tray for receiving condensed condensed water.

  In addition, basic internal structures such as a filter, an up / down wind direction plate, and a left / right wind direction plate are attached to the housing base of the indoor unit. These are covered with a decorative frame, and a front panel is attached to the front surface of the decorative frame, so that the indoor unit is included in a casing composed of a casing base, a decorative frame, and a front panel.

  The air suction port is composed of an upper air suction part provided at the upper part of the indoor unit and a front air suction part provided at the front surface of the indoor unit. Here, the front panel is rotated by a drive motor with a rotation shaft provided at the lower end as a fulcrum, and is configured to open the front air suction portion when the air conditioner is in operation. Thereby, indoor air is also attracted | sucked in an indoor unit also from the front side air suction part at the time of driving | running of an air conditioner. When the operation of the air conditioner is stopped, the front panel is rotated so that the front air suction part is closed. The air blower outlet formed in the lower surface of the decorative frame is disposed adjacent to the divided portion of the front panel and the decorative frame, and communicates with the blowout air path inside the indoor unit.

  The filter is disposed so as to cover the suction side of the indoor heat exchanger. The filter removes dust contained in the indoor air sucked from the air suction port (upper air suction part, front air suction part). The dew tray is disposed below the lower ends of the front and rear sides of the indoor heat exchanger and receives condensed water generated in the indoor heat exchanger during cooling operation and dehumidifying operation. The condensed water collected in the dew tray is discharged out of the room through a drain pipe provided inside the connection pipe.

  When the blower fan rotates, room air flows from the air inlet to the indoor heat exchanger. Then, the conditioned air whose temperature is adjusted and humidity-adjusted by the indoor heat exchanger flows through the blower fan to the blowout air passage having a width substantially equal to the length of the blower fan. Thereafter, the conditioned air is deflected in the left-right direction by the left and right wind direction plates located in the blow-out air passage, and is deflected in the up-down direction by the up-and-down air direction plate located in the air outlet, and blows out into the room.

  The two up and down wind direction plates are pivoted to the required angle when the air conditioner is operated by the drive motor according to instructions from the remote controller, etc., with the pivot shafts provided at both ends as fulcrums. Open and hold in that state. When the operation of the air conditioner is stopped, control is performed so that the vertical air direction plate is rotated and the air outlet is closed. The up-and-down wind direction plate is configured to be confined to the bottom surface of the indoor unit in a closed state, substantially concealing the blowing air path.

  The left and right wind direction plates are rotated to a required angle by a drive motor in response to an instruction from a remote controller or the like with a rotation shaft provided at the lower end as a fulcrum, and are held in that state.

  As described above, the indoor unit of the air conditioner rotates the vertical wind direction plate and the left and right wind direction plates to a required angle in accordance with an instruction from the remote controller, and deflects the conditioned air from the air outlet to the desired direction. Blow out in the direction of

  In addition, according to an instruction from a remote controller or the like, it is possible to periodically oscillate the conditioned air over a wide range in the room by periodically swinging the vertical and horizontal wind direction plates during operation of the air conditioner.

  The indoor unit includes an indoor unit thermistor that detects the temperature of indoor air sucked into the indoor unit (hereinafter referred to as “suction air temperature”) near the front air suction unit. The indoor unit includes an indoor humidity sensor that detects the humidity of the indoor air sucked into the indoor unit.

  Here, the configuration of the indoor unit transmission / reception unit will be described. Below the decorative frame of the indoor unit, an indoor unit transmission / reception unit for transmitting and receiving infrared signals between the indoor unit and the remote controller, and a display device for displaying the operating status of the air conditioner are arranged. The indoor unit transmission / reception unit includes an IR receiver that receives an infrared signal from a remote controller, a central transmission element that transmits an infrared signal toward the center of the room where the indoor unit is installed, and a left side of the room where the indoor unit is installed A left transmission element that transmits an infrared signal toward the right side, and a right transmission element that transmits an infrared signal toward the right side of the room in which the indoor unit is installed.

  The indoor unit includes a control board in an internal electrical component box, and a microcomputer and a storage device are provided on the control board. The microcomputer receives signals from various sensors such as an indoor unit thermistor and an indoor humidity sensor, and also receives an infrared signal from a remote controller via an indoor unit transmission / reception unit (IR receiver). Based on these signals, the microcomputer controls the drive motor for the blower fan, the drive motor for the front panel, the drive motor for the up / down air direction plate, the drive motor for the left / right air direction plate, and the outdoor unit via the wires of the connecting pipe. Controls communication with (compressor, outdoor blower, etc.) and controls the indoor unit and outdoor unit in an integrated manner. Further, the microcomputer can transmit an infrared signal to the remote controller via the indoor unit transmission / reception unit (center transmission element, left transmission element, right transmission element).

  Next, the operation control of the up-and-down wind direction plate of a present Example is demonstrated using FIGS. 3-6. The air conditioner of the present embodiment includes an air inlet and an air outlet, a blower fan that sucks room air from the air inlet and blows out air-conditioned room air from the air outlet, and air-conditioned air. A first state in which an up-and-down air direction plate that deflects in an up-and-down direction and a control device that controls a vertical position of the up-and-down air direction plate and directs conditioned air in a direction in which no occupant is located by the up-and-down air direction plate; The vertical wind direction plate is controlled to repeat the second state in which the vertical wind direction plate is swung from the state and the conditioned air is temporarily directed in the direction including the occupant. In addition, the up-and-down wind direction plate as shown in FIG. 3 causes the conditioned air to be directed in a direction where the resident person is not located, and the up-and-down wind direction plate is swung from the first state as shown in FIG. Repeating the second state in which the conditioned air is temporarily directed in the including direction is hereinafter referred to as “intermittent swing operation”. In this embodiment, in particular, in the first state during the cooling operation, the up-and-down air direction plate is fixed at a fixed position in a substantially horizontal direction, and in the first state during the heating operation, there are persons in the room. Fix it at a fixed position in front of you. Together, both states are referred to as “in-place balloons”.

  When an instruction input for intermittent swing control is received, a fixed position balloon (FIG. 3) and a swing balloon (FIG. 4) are alternately performed (FIGS. 5 and 6). In the state of blowing out at a fixed position, for example, in the cooling operation, the up / down air direction plates are directed in the substantially horizontal direction, and the conditioned air is blown out in the substantially horizontal direction. On the other hand, in the heating operation, the up-and-down wind direction plate is directed toward the front and lower than the position where the occupant is present, and the conditioned air is blown out below the air conditioner.

  Here, for example, when an instruction input for intermittent swing control is received during the cooling operation, a swing balloon that swings the vertical wind direction plate a predetermined number of times and a fixed position balloon that positions the vertical wind direction plate in a substantially horizontal direction and blows out for a predetermined time are repeated. Specifically, for example, when an instruction input for intermittent swing control is received, the vertical wind direction plate is swung once, and the vertical wind direction plate is fixed in the horizontal direction for 5 minutes and then blown out at a fixed position. Further, after blowing out at a fixed position for 5 minutes, the up / down wind direction plate is swung once again.

  As a result, it is possible to prevent the discomfort due to the cold that occurs when the up-and-down wind direction plate is swung continuously, and also to prevent the discomfort due to the heat without airflow that occurs when the up-and-down wind direction plate is kept oriented substantially in the horizontal direction. be able to. Therefore, it is possible to provide a comfortable thermal environment in which the discomfort due to the cold is suppressed while feeling the coolness due to the airflow.

  The reason why the up-and-down wind direction plate was swung once was to consider the danger of feeling cold due to increased heat dissipation due to airflow by swinging multiple times, and would like to increase the amount of heat dissipation when the room temperature is high In this case, by swinging a plurality of times, it is possible to increase the heat radiation amount and feel cooler.

  Here, in this embodiment, during intermittent swing operation, a corrected set temperature (corrected set room temperature THS) shifted by a temperature correction value (correction value ΔT) with respect to the set temperature (set room temperature TSS) set by the user. Is set to a new set temperature, and the room air is conditioned so that the room temperature becomes the new set temperature. That is, the set room temperature TSS, the correction value ΔT, and the corrected set room temperature THS are controlled to be “TSS + ΔT = THS” (see FIG. 7; ΔT = 3 ° C. in FIG. 7).

  Specifically, during intermittent swing operation during cooling operation, the air conditioner is controlled so that the room temperature becomes a corrected set temperature (THS) that is higher than the set temperature (TSS) by a cooling temperature correction value (ΔT) ( (See FIG. 8). Further, during intermittent swing operation during heating operation, control is performed so that the room temperature (TSS) becomes a corrected set temperature (THS) that is lower than the set temperature by a heating temperature correction value (ΔT).

  If the intermittent swing operation is performed during the cooling operation, the set temperature is increased because the cool air is directed directly to the occupant by the swing operation that swings the vertical wind direction plate and temporarily directs the conditioned air in the direction including the occupant. Even if the shift is performed, the comfort for the occupants can be maintained. On the other hand, power consumption can be reduced by increasing the set temperature during cooling operation. Therefore, during intermittent swing operation during cooling operation, a new set temperature is set as the corrected set temperature that is higher than the set temperature by the cooling temperature correction value, thereby suppressing discomfort in no airflow and continuous airflow. It is possible to make the living space excellent in performance and to reduce power consumption without impairing comfort.

  Similarly, when intermittent swing operation is performed during heating operation, warm air is directly directed to the occupant by swing operation that swings the vertical wind direction plate and temporarily directs conditioned air in the direction including the occupant. Even if the set temperature is shifted to be lowered, the comfort for the occupants can be maintained. On the other hand, power consumption can be reduced by lowering the set temperature during heating operation. Therefore, during intermittent swing operation during heating operation, a new set temperature is set to a corrected set temperature that is lower than the set temperature by the heating temperature correction value, thereby suppressing discomfort in no airflow and continuous airflow, It is possible to make the living space excellent in performance and to reduce power consumption without impairing comfort.

  Note that the shift value (correction value ΔT) may be based on a thermal environment evaluation index such as SET * or PMV, or may be determined based on the total value of the heat dissipation amount.

  In this embodiment, the conditioned air is directed in a direction in which the occupant is not located by the up-and-down wind direction plate (for example, the substantially horizontal direction during cooling), and the up-and-down wind direction plate is swung from the first state. The vertical wind direction plate is controlled to repeat the second state in which the conditioned air is temporarily directed in the direction including the person. Even in a conventional air conditioner, control for blowing the vertical wind direction plate fixed at a fixed position and control for swinging the vertical wind direction plate have been performed. However, in the case of control in which the vertical wind direction plate is fixed and blown out at a fixed position, the vertical wind direction plate is directed in a substantially horizontal direction. The amount of heat released from the body due to the airflow could not be increased from the conditioned air whose speed decreased, and the coolness due to the airflow could not be felt. In the case of control for swinging the vertical wind direction plate, the conditioned air blown out from the indoor unit is supplied to the living space once every few seconds, so the amount of heat released from the skin increases once every few seconds. There was a danger of feeling the cold due to things. Therefore, in the air conditioner of the present invention, the upper and lower wind direction plates swing the conditioned air in a direction in which no occupants are located (for example, the substantially horizontal direction during cooling), and swing the upper and lower wind direction plates from the first state. By controlling the up-and-down wind direction plate to repeat the second state in which the conditioned air is temporarily directed in the direction including the occupants, comfortable heat without feeling of discomfort due to cold while feeling cool by the airflow It was possible to provide an environment.

  As described above, the air conditioner of the present invention is air-conditioned with an air inlet and an air outlet, and a blower fan that sucks in indoor air from the air inlet and blows out air-conditioned indoor air from the air outlet. An air conditioner that includes a vertical wind direction plate that deflects the conditioned air in the vertical direction, and a control device that controls the vertical position of the vertical wind direction plate so that the room air becomes a set temperature. The first state in which conditioned air is directed in a direction in which the occupant is not located by the vertical wind direction plate, and the second state in which the conditioned air is temporarily directed in a direction including the resident by swinging the vertical wind direction plate from the first state And an intermittent swing operation that repeats the above, and at the intermittent swing operation during the cooling operation, a corrected set temperature that is higher than the set temperature by the cooling temperature correction value is set as a new set temperature (heating operation). (In the intermittent swing operation at the time, the corrected set temperature, which is lower than the set temperature by the heating temperature correction value, is set as the new set temperature). It is possible to reduce power consumption without sacrificing such comfort while making space.

  In the present embodiment and the following embodiments, description will be given mainly by taking the cooling operation as an example, but the present invention can also be applied during the heating operation.

  Further, in this embodiment, when an instruction is input to perform intermittent swing control regardless of the cooling operation or the heating operation, the swing blowout for swinging the vertical wind direction plate and the vertical wind direction plate are fixed and blown out. An example of alternately performing fixed position balloons has been described. However, the direction of the up-and-down airflow direction plate may be controlled so that the swing blowout and the fixed-position blowout are alternately performed only when there is an intermittent swing instruction input during cooling. Thereby, the improvement of the coolness by the airflow at the time of air_conditionaing | cooling operation and the avoidance of the discomfort by cold can be actualized.

  In the present embodiment, the first state in which the conditioned air is directed in the direction in which no occupant is located, specifically, for example, in the cooling operation, the vertical wind direction plate is fixed in a substantially horizontal direction. For example, at the time of heating operation, the up-and-down wind direction plate is directed toward the front and lower than the position where the occupant is present, and the conditioned air is blown out below the air conditioner. Thereby, in the 1st state which directs conditioned air in the direction where a occupant is not located, it can control so that cold air or warm air may not be directed to an occupant reliably.

  Further, in the present embodiment, as the first state in which the conditioned air is directed in the direction in which the occupant is not located, specifically, for example, in the cooling operation, the upper and lower wind direction plates are fixed in a substantially horizontal direction. You may make it swing an up-and-down wind direction board in the range in which a resident is not located. Specifically, during the cooling operation, the vertical wind direction plate may be swung around the horizontal direction, or the vertical wind direction plate in a range above the horizontal direction may be swung. By such an operation, even in the first state in which conditioned air is directed in a direction in which no occupants are located, a change in the airflow can be generated in the room, and the room temperature can be equalized more quickly.

  Further, in this embodiment, the conditioned air is temporarily directed in the direction including the occupant by swinging the vertical wind direction plate. In this case, the position information of the occupant is obtained by the human detection means or the like. If it is, the conditioned air can be temporarily directed in the direction including the occupant using the position information of the occupant. On the other hand, even if the position information of the occupants cannot be obtained without providing human detection means etc., it is possible to cool or warm air by swinging the vertical wind direction plate within the range where the vertical wind direction plate can operate to the maximum extent. The air can be reliably blown toward the occupants.

  Next, a second embodiment of the present invention will be described. In the present embodiment, as the difference between the room temperature and the set temperature is larger, the cooling temperature correction value or the heating temperature correction value is decreased (FIG. 10). Accordingly, when the difference between the set room temperature and the room temperature is large and the comfort required by the user is not obtained, the power consumption is reduced by the temperature shift correction value (cooling temperature correction value or heating temperature correction value). By reducing this correction value, it is possible to provide a thermal environment that the user seeks earlier. When the difference between the set room temperature and the room temperature is small, the power consumption can be further reduced by providing a thermal environment close to the thermal environment desired by the user by increasing the correction value.

  A third embodiment of the present invention will be described. In this embodiment, the shorter the elapsed time from the start of operation, the smaller the cooling temperature correction value or the heating temperature correction value (FIG. 11). For example, if the time from the start of driving is within 5 minutes (for example, 5 minutes until the person gets used to comfort), the correction value is reduced to provide the thermal environment desired by the user. By increasing the value, it becomes possible to greatly reduce the power consumption by greatly correcting the set room temperature after obtaining a sufficiently large comfort by increasing the heat radiation amount sufficiently large within 5 minutes from the start of operation. Note that the “elapsed time from the start of operation” in this embodiment is the elapsed time from the start of operation in each operation mode such as heating, cooling, and dehumidification, even if it is the elapsed time from the start of operation of the air conditioner. Even the time may be an elapsed time from the start of operation in the intermittent swing operation.

  A fourth embodiment of the present invention will be described. In the present embodiment, the higher the radiation temperature from the indoor floor, wall, or ceiling, the smaller the cooling temperature correction value and the larger the heating temperature correction value (FIG. 12). For example, during cooling operation, the temperature of the wall, floor, or ceiling is 40 degrees, and heat is supplied by radiation from the wall, floor, or ceiling to the human body (Q radiation in (Equation 2), skin temperature is about 32 degrees), When the correction value is decreased (for example, 1 degree) and the temperature of the wall, floor, or ceiling is 27 degrees and heat is supplied from the human body to the wall, floor, or ceiling, the correction value is increased (for example, 3 degrees). As a result, when the radiation temperature is high, the room temperature is brought close to the set room temperature, so that a greater comfort can be obtained by increasing the amount of heat radiation, and when the radiation temperature is low, the correction value can be increased. The generation of discomfort due to cold can be prevented, and the power consumption can be greatly reduced.

  A fifth embodiment of the present invention will be described. In the present embodiment, the cooling temperature correction value or the heating temperature correction value is decreased as the rotational speed of the blower fan is increased. For example, in the case of cooling operation, when the airflow speed is set to light wind, the indoor fan has a small number of rotations, and when the amount of heat released by the airflow is small, the correction value is reduced (for example, 1 degree), and the airflow speed is set to a strong wind. When the number of rotations of the indoor fan is large, such as in the case of the above, by increasing the correction value (for example, 6 degrees), when the set wind speed is low, a greater feeling of comfort can be obtained by increasing the amount of heat released by the airflow, When the set wind speed is high, it becomes possible to prevent the discomfort caused by the cold accompanying the increase in heat dissipation by the air flow, and the power consumption can be reduced.

  A sixth embodiment of the present invention will be described. In the present embodiment, the cooling temperature correction value or the heating temperature correction value is increased as the rotational speed of the blower fan is increased. For example, in the case of an example mother operation, when the number of rotations of the indoor fan is large and the user is requesting more heat radiation by the airflow, the correction value is decreased (for example, 1 degree), and the number of rotations of the indoor fan is small and the user When the promotion of heat dissipation by means of is not sought, the correction value is increased (for example, 6 degrees), so that it is possible to reduce the power consumption while providing a thermal environment in which the user's request is further advanced.

  A seventh embodiment of the present invention will be described. In the present embodiment, the higher the outdoor temperature, the smaller the cooling temperature correction value and the larger the heating temperature correction value (FIG. 14). For example, in the case of cooling operation, the correction value is decreased (for example, 2 degrees) when the outside air temperature is 40 degrees, and is increased (for example, 6 degrees) when the outside temperature is 30 degrees. As a result, when the heat of high outside air temperature penetrates the walls, floors and ceilings and the heat radiation from the human body due to radiation and conduction becomes small (Q radiation and Q conduction in (Equation 2) become small), the heat radiation is reduced by the air flow. Increasing (by increasing α in (Equation 1), Q is increased), and a comfortable feeling due to coolness can be obtained. In addition, when the outside air temperature is low, the amount of heat released by radiation and conduction is large. Therefore, by lowering the heat released by convection, it is possible to prevent the feeling of discomfort due to the cold and to reduce the power consumption. .

  An eighth embodiment of the present invention will be described. In the present embodiment, the higher the set temperature, the smaller the cooling temperature correction value and the larger the heating temperature correction value (FIG. 15). For example, in the cooling operation, when the set temperature is 29 degrees, the correction value is decreased (for example, 2 degrees), and when the set temperature is 25 degrees, the correction value is increased (for example, 6 degrees). As a result, when the set room temperature is high and the heat dissipation from the human body is low, the amount of heat released from the human body can be increased by the airflow, and the comfort due to the coolness can be felt, and when the set room temperature is low and the heat dissipation from the human body is large, the airflow The increase in heat dissipation can be reduced to prevent discomfort due to cold, and the power consumption can be reduced by correcting the set room temperature.

  On the other hand, contrary to the present embodiment, for example, in the cooling operation, when the set temperature is 29 degrees, the correction value is increased (for example, a human temperature discrimination threshold of 4 degrees at a room temperature of 29 degrees, Weber ratio: discrimination threshold / Stimulus = constant: The greater the stimulus, the greater the change in the stimulus required to be recognized). When the set temperature is 25 degrees, the correction value is decreased (for example, the human temperature discrimination threshold at 25 degrees room temperature is 3 degrees) ). Thereby, when the set room temperature is high and it is difficult to recognize the temperature change, the power consumption can be greatly reduced, and even when the set room temperature is low and the temperature change is easy to recognize, by setting the temperature change below the discrimination threshold, The amount of power consumption can be reduced without deteriorating comfort.

  A ninth embodiment of the present invention will be described. In this embodiment, the higher the room temperature, the smaller the cooling temperature correction value and the larger the heating temperature correction value (FIG. 16). For example, during cooling operation, the correction value is decreased (for example, 2 degrees) when the room temperature is 29 degrees, and the correction value is increased (for example, 6 degrees) when the room temperature is 25 degrees. As a result, when the room temperature is high and the heat released from the human body is low, the amount of heat released from the human body can be increased by the air flow, and the comfort due to the coolness can be felt. The increase can be reduced to prevent discomfort due to cold, and the power consumption can be reduced by correcting the set room temperature.

  On the other hand, contrary to the present embodiment, for example, at the time of cooling operation, the correction value is increased when the room temperature is 29 degrees (for example, the human temperature discrimination threshold of 4 degrees at the room temperature of 29 degrees, Weber ratio: discrimination threshold / stimulus). = Constant ... The greater the stimulus, the greater the change in the stimulus required to be recognized.) When the room temperature is 25 degrees, the correction value is decreased (for example, the human temperature discrimination threshold at 25 degrees room temperature is 3 degrees). This makes it possible to greatly reduce the power consumption when the room temperature is high and it is difficult to recognize the temperature change. The power consumption can be reduced without lowering the power consumption.

  In each of the above embodiments, the case where the user is not involved in the correction value has been described. However, the present invention is not limited to this. For example, in addition to the initial setting, the user may set the correction value with a remote controller. Thus, when the user seeks an increase in heat dissipation during operation with the initial setting of the correction value (for example, a human temperature discrimination threshold of 2 degrees at room temperature of 20 degrees), the correction value is decreased (for example, room temperature of 20 degrees). Can be set with a remote controller, and a thermal environment can be provided according to the user's preference. Further, when the user feels cold due to an increase in heat dissipation during operation with an initial setting of the correction value (for example, 2 degrees of the human temperature discrimination threshold at a room temperature of 20 degrees), the correction value is increased (for example, at a room temperature of 20 degrees). It is possible to provide a more comfortable thermal environment for the user by making the temperature four times the human temperature discrimination threshold.

  In each of the above embodiments, the difference between the set room temperature and the room temperature, the time from the start of operation, the surface temperature sensor of the object such as the floor, the rotation speed of the indoor fan, the outside air temperature, the set temperature, and the room temperature are divided into two stages and corrected. An example with different values was given. However, the present invention is not limited to this. For example, when the correction value is changed according to the difference between the set room temperature and the room temperature, the difference between the set room temperature and the room temperature may be increased or decreased in proportion to the difference at a pitch of 1 degree (FIG. 17). ).

  Further, for example, the correction value may be increased or decreased depending on the relationship between the difference between the set room temperature and the room temperature and a curve such as an exponential function, a logarithmic function, or an n-order function (FIG. 18).

  Further, for example, the correction value may be increased or decreased by a step change to the difference between the set room temperature and the room temperature (FIG. 17).

  Further, for example, the correction value may be increased or decreased by a lamp change to the difference between the set room temperature and the room temperature (FIG. 18).

  The correction value is not limited to the value given as an example in the above embodiment, but is determined by a value based on a thermal environment evaluation index such as SET * or PMV, a value based on an experiment, a Weber ratio, or an original standard. It may be a value. Furthermore, the correction value is not limited to the values given in the above embodiments, and may be increased or decreased over time.

  As a method for reducing the power consumption during the operation of the air conditioner, there are a method for correcting the set room temperature and a method for correcting the compressor rotational speed as in the present invention. When the set room temperature is corrected as in the present invention, the compressor maximum rotational speed during operation in intermittent swing control is not corrected in the time zone when the compressor rotational speed is high as at the start of operation, and the maximum during normal operation is not corrected. Since it is the same as the rotational speed, the operation time at the maximum rotational speed is shortened, but the reduction in power consumption is discounted by the height of the compressor rotational speed. When correcting the compressor speed, the compressor speed is usually adjusted not only during the time when the compressor speed is high, but also during the time when the room temperature is more stable near the set room temperature than at the start of operation. Since the operation time of the compressor becomes longer because it can be made lower than that during operation, it is possible to reduce the amount of power consumption by the amount of the lower compressor speed. On the other hand, with regard to the improvement of comfort due to an increase in the amount of heat dissipation, when the set room temperature is corrected as in the present invention, the maximum compressor speed is not corrected from normal operation, so the compressor speed is high. Although the operation time is short, high comfort can be obtained from the low temperature of the blown air. When correcting the compressor speed, since the compressor speed is lower than that during normal operation, the blown air temperature becomes higher, and although the operation time at a higher compressor speed is longer, the comfort is improved. Will be discounted by the height of.

Set room temperature TS after THS correction Room temperature ΔTS Difference between set room temperature and room temperature TSF Swing blow time TSS Set room temperature TTF before correction Time TU Fixed position blow time TU Time elapsed from start of operation 1 Indoor unit 2 Outdoor unit 5 Indoor heat exchange Unit 7 Blower fan 10 Vertical wind direction plate 11 Left and right wind direction plate 14 Air suction port 15 Blowing air path 16 Upper air suction part 17 Front air suction part

Claims (5)

An air inlet and an air outlet;
A blower fan that sucks room air from the air inlet and blows out air-conditioned air from the air outlet;
Up and down wind direction means for deflecting conditioned air in the up and down direction;
Left and right wind direction means for deflecting conditioned air in the left and right direction;
Human detection means for detecting the position of a person;
A first state in which the up-and-down air direction means is swung in a range narrower than a range in which the up-and-down air direction means can move to the maximum during cooling operation, and the conditioned air is directed in a direction in which no person is located by the up-and-down air direction means; Swing operation for air conditioning the room air so that the room temperature is higher than the set temperature set by the person by repeating the second state in which the conditioned air is directed in the direction including the position of the person detected by the person detecting means And
An air conditioner that reduces the difference between the room temperature and the set temperature during the swing operation of the cooling operation as the radiation temperature from the indoor floor, wall, or ceiling increases. An air inlet and an air outlet;
A blower fan that sucks room air from the air inlet and blows out air-conditioned air from the air outlet;
Up and down wind direction means for deflecting conditioned air in the up and down direction;
Left and right wind direction means for deflecting conditioned air in the left and right direction;
Human detection means for detecting the position of a person;
A first state in which the up-and-down air direction means is swung in a range narrower than a range in which the up-and-down air direction means can move to the maximum during cooling operation, and the conditioned air is directed in a direction in which no person is located by the up-and-down air direction means; Swing operation for air conditioning the room air so that the room temperature is higher than the set temperature set by the person by repeating the second state in which the conditioned air is directed in the direction including the position of the person detected by the person detecting means And
The air conditioner that increases the difference between the room temperature and the set temperature during the swing operation of the cooling operation as the rotation speed of the blower fan increases. An air inlet and an air outlet;
A blower fan that sucks room air from the air inlet and blows out air-conditioned air from the air outlet;
Up and down wind direction means for deflecting conditioned air in the up and down direction;
Left and right wind direction means for deflecting conditioned air in the left and right direction;
Human detection means for detecting the position of a person;
A first state in which the up-and-down air direction means is swung in a range narrower than a range in which the up-and-down air direction means can move to the maximum during cooling operation, and the conditioned air is directed in a direction in which no person is located by the up-and-down air direction means; Swing operation for air conditioning the room air so that the room temperature is higher than the set temperature set by the person by repeating the second state in which the conditioned air is directed in the direction including the position of the person detected by the person detecting means And
An air conditioner that reduces the difference between the room temperature and the set temperature during the swing operation of the cooling operation as the outdoor temperature increases. An air inlet and an air outlet;
A blower fan that sucks room air from the air inlet and blows out air-conditioned air from the air outlet;
Up and down wind direction means for deflecting conditioned air in the up and down direction;
Left and right wind direction means for deflecting conditioned air in the left and right direction;
Human detection means for detecting the position of a person;
A first state in which the up-and-down air direction means is swung in a range narrower than a range in which the up-and-down air direction means can move to the maximum during cooling operation, and the conditioned air is directed in a direction in which no person is located by the up-and-down air direction means; Swing operation for air conditioning the room air so that the room temperature is higher than the set temperature set by the person by repeating the second state in which the conditioned air is directed in the direction including the position of the person detected by the person detecting means And
The air conditioner that reduces the difference between the room temperature and the set temperature during the swing operation of the cooling operation as the set temperature is higher. An air inlet and an air outlet;
A blower fan that sucks room air from the air inlet and blows out air-conditioned air from the air outlet;
Up and down wind direction means for deflecting conditioned air in the up and down direction;
Left and right wind direction means for deflecting conditioned air in the left and right direction;
Human detection means for detecting the position of a person;
A first state in which the up-and-down air direction means is swung in a range narrower than a range in which the up-and-down air direction means can move to the maximum during cooling operation, and the conditioned air is directed in a direction in which no person is located by the up-and-down air direction means; Swing operation for air conditioning the room air so that the room temperature is higher than the set temperature set by the person by repeating the second state in which the conditioned air is directed in the direction including the position of the person detected by the person detecting means And
An air conditioner that reduces the difference between the room temperature and the set temperature during the swing operation of the cooling operation as the room temperature during the swing operation of the cooling operation is higher.