JP3864814B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to control of an air conditioner.
[0002]
[Prior art]
For example, Japanese Patent Application Laid-Open No. 08-313032 discloses a control device that allows a user to feel a natural air flow change by changing the wind speed without causing a user to feel a cold air sensation during cooling operation of an air conditioner. ing.
[0003]
[Problems to be solved by the invention]
However, in the air conditioner control apparatus as described above, it is necessary to change the angular speed of the stepping motor for operating the deflecting plate in order to change the deflection speed of the deflecting blade. The voltage also increases, it is necessary to use a stepping motor having a large allowable voltage, and it is necessary to increase the allowable voltage of the control circuit. Therefore, there has been a problem that the cost of the stepping motor and the control circuit is increased. Further, the control circuit also has chaos generation means, and accordingly, it is necessary to increase the capacity of the semiconductor memory in the control circuit.
[0004]
The present invention has been made to solve the above-described problems, and provides a device that allows a user to feel a change in airflow that is close to nature with a simple configuration. The present invention also provides a comfortable and highly reliable device with a simple configuration.
[0005]
[Means for Solving the Problems]
  The air conditioner of the present invention has a main body that has a blower and blows out sucked air from a blower outlet, and a change in the flow of air that is provided in the main body and that blows out from the blower outlet in at least one of the vertical direction and the horizontal direction. A direction plate, driving means for changing the angle of the direction change plate and causing the wind blown from the blower to collide with the direction change plate, and controlling the drive means to move the direction change plate in the vertical and horizontal directions. At least one direction is moved from one end to the other end within a predetermined angle, and a random number is generated when the turning plate reaches a specific angle set within the predetermined angle. Control means for selecting the direction of movement of the deflecting plate in the direction of one end or the other end depending on the size, and the specific angle can be changed.
[0008]
The specific angle of the present invention is set to be changeable in the direction detected by the human body detecting means.
[0009]
The specific angle of the air conditioner of the present invention has a predetermined range or a plurality of angles.
[0010]
The air conditioner of the present invention includes a refrigerant circuit including a compressor, an indoor heat exchanger, and an outdoor heat exchanger, an up / down direction changing plate that changes the air direction in the up / down direction, and a left / right direction changing plate that changes the air direction in the left / right direction. And the main body is an indoor unit that blows out air conditioned by the indoor heat exchanger into the room.
[0011]
In the air conditioner of the present invention, the driving means is turned ON / OFF according to the temperature of the sucked air or the blown air.
[0012]
In the air conditioner of the present invention, the angular velocity due to the driving of the driving means is made substantially constant.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a configuration diagram of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a structural diagram of an indoor unit installed in a room according to Embodiment 1 of the present invention, and FIG. It is a figure explaining the vertical deflection plate provided in the exit.
[0014]
1, 2 and 3, reference numeral 1 denotes a compressor which is operated by changing the frequency or repeating ON / OFF. 2 is a four-way valve that changes the direction of refrigerant flow in the cooling operation and the heating operation, and 3 is an outdoor heat exchanger. The compressor 1, the four-way valve 2, and the heat exchanger 3 mainly constitute an outdoor unit 4. On the other hand, 5 is a heat exchanger on the indoor side, and 6 is a blower that circulates indoor air. Further, 7 is a suction port for sucking air from the room into the blower 6, 8 is a blow-out port for blowing air from the blower 6 into the room, and 9 is a blown-out wind that passes until the air blown from the blower 6 reaches the blower 8. A passage 10 is installed in the blowout air passage 9, and a vertical turning plate for turning the wind blown from the blower 6 in the vertical direction. 11 is installed in the blowout air passage and is blown from the blower 6. A left and right turning plate 12 for turning the wind in the left and right direction, a stepping motor 12 that is supported by a shaft 19 and that operates the up and down turning plate 10. Although not shown, the left and right turning plate 11 is operated. A stepping motor 13 is also provided separately. 14 is a temperature thermistor installed at the suction port 7, 15 is a temperature thermistor installed at the outlet 8, and 16 has a function of generating a random number. The temperature of the temperature thermistors 14 and 15 is detected and the random number is large. The control circuit for controlling the stepping motors 12 and 13 according to the temperature of the temperature thermistors 14 and 15, 17 indoor units, and 18 are air-conditioned rooms. The heat exchanger 5, the blower 6, the suction port 7, the blowout port 8, the blowout air passage 9, the up / down turning plate 10, the left / right turning plate 11, the stepping motors 12 and 13, the temperature thermistors 14 and 15, and the control circuit 16 An indoor unit 17 is configured. The indoor unit 17 is installed near the ceiling of the side wall of the air-conditioned room 18. 20 is a remote control device that can set the temperature and wind direction of the air conditioner, and 21 is a human body detection device that can detect a human body by detecting infrared rays. Note that a stepping motor may be provided only for the operation of the up / down turning plate, and the left / right turning plate may be moved manually.
[0015]
FIG. 3 shows the structure of the up-and-down turning plate 10, which is supported by the shaft 19 and driven by the stepping motor 12 and can change the wind direction by changing the angle. The structure of the left and right diverting plates made up of a plurality of sheets is not shown, but is similarly driven by the stepping motor 13 and supported by the shaft, and rotates together to change the wind direction by changing the angle. However, it is possible to operate the left and right direction change plates manually without using a stepping motor, or to move the direction change plates placed on the left and right sides in different directions with one motor. Of course. The control circuit 16 and the stepping motor 12 are connected, and a signal for adjusting positioning and angular velocity is transmitted from the control circuit 16 to the stepping motor 12, and the stepping motor 12 is operated based on the signal.
[0016]
FIG. 4 is a diagram for explaining the range of angles at which the vertical deflection plate 10 operates. In FIG. 4, θ1 and θ3 are angles from the horizontal, and at the end of the range of angles at which the vertical deflection plate 10 operates. In this range, the deflection plate 10 is moving. FIG. 5 shows a flowchart of the operation and control contents of the stepping motor controlled by the control circuit 16. That is, FIG. 5 shows a control method of the stepping motor 12 and the control circuit 16 for operating the up / down turning plate 10. In FIG. 5, ST1 is a step of detecting the position of the vertical deflection plate 10 by a microcomputer provided in the control circuit 16, ST2 is a step of checking whether the vertical deflection plate is coincident with a specific angle θ2, and ST3 is If they do not match, this is the step of continuing the operation of the deflecting plate as it is. After the step of confirming the coincidence in ST4, the process proceeds to ST5 in which the microcomputer generates a random number in the control circuit 16. In ST6 and ST7, depending on whether the random number from 0 to 1 is 0.6 or more and less than 0.6, if it is 0.6 or more, it is st8 as st8, and if it is less than 0.6, ST9 is θ1. Move in the direction of. Next, the operation will be described.
[0017]
The control circuit 16 operates the stepping motor 12 according to the control content set in the microcomputer so that the up-and-down turning plate 10 operates within a predetermined angle θ1 to θ3 as shown in FIG. A specific angle that is θ2 is set in advance so that θ2 is closer to θ1 than the centers of θ1 and θ3 within the range of θ1 to θ3. As shown in FIG. 5, during the operation of the stepping motor 12, when the angle of the up-and-down turning plate 10 becomes θ2, a random number from 0 to 1 is generated in the control circuit 16, and θ1 is changed according to the magnitude of the random number. Whether to move in the direction or the direction of θ3 is selected and determined, and a signal is transmitted from the control circuit 16 to the stepping motor 12 to perform this operation. When the angle of the vertical deflection plate becomes θ1, it automatically moves in the direction of θ2, and when it becomes θ3, it automatically moves in the direction of θ2.
[0018]
FIG. 6 is an explanatory view showing an example of a room to which the air conditioner of the present invention is applied, and shows the air-conditioned room 18 having dimensions of W3.6 m × D3.6 m × H2.4 m, and FIG. 7 shows the air-conditioned room of FIG. 3 is a cross-sectional explanatory view of a chamber 18. FIG. 8 is an explanatory diagram of characteristics. In the air-conditioned room 18 shown in FIG. 7, the angles at which the vertical deflection plates are operated are θ1 = 7 °, θ2 = 16 °, θ3 = 34 °, and the angular velocity of the stepping motor 12 is set. When 1.5 deg / s is constant and the angle of the vertical deflection plate becomes θ2, the control circuit 16 generates a random number from 0 to 1, sets the threshold to 0.6, and the random number is less than the threshold 0.6 It is a graph showing the experimental value of the time average wind speed distribution in 120 cm on the floor when it controls to move to the direction of θ1 at the time of, and to move to the direction of θ3 when the threshold value is 0.6 or more. The horizontal axis indicates the distance from the wall where the indoor unit 17 is provided, and the vertical axis indicates the average wind speed. FIG. 9 is an explanatory diagram of characteristics, and represents the appearance rate of the wind speed at x (θ) = 300 cm on the floor 120 cm in FIG. The horizontal axis is the ratio of the appearing wind speed to the average wind speed, and the vertical axis is the ratio of the appearance. That is, the vertical axis in FIG. 9 is the appearance rate of the wind speed, and the horizontal axis is the wind speed divided by the average wind speed. For example, when the horizontal axis value is 1 and the vertical axis value is 50%, the wind speed / average It means that the ratio that the wind speed is 1 or more is 50%. In FIG. 9, white circles represent the appearance rate of natural wind speed. In addition, the appearance rate of the wind speed of this natural wind uses the data measured for 1 hour at 1 second intervals in the park on a clear day.
[0019]
FIG. 10 is a diagram showing the fluctuation characteristics of wind fluctuations measured at x (θ) = 300 cm on the floor 120 cm in FIG. Next, fluctuation will be described. The wind speed U (t) at a certain position is divided into an average speed U and a fluctuation speed u ′ (t) and defined as U (t) = U + u ′ (t), and the fluctuation speed u ′ (t) is as follows: In the Fourier series.
u ′ (t) = ΣA_isin (2πf_it + Φ_i)
A_iIs amplitude, f is frequency, t is time, Φ_iRepresents a phase. At this time, the power spectrum P (f) is represented by the expected value of the square of the amplitude.
P (f) = E (A_i ²)
It is known that the nature of natural wind fluctuations follows Kolmogorov's -5/3 power rule that the power spectrum defined in this way is proportional to the -5/3 power of the frequency. FIG. 10 is a characteristic explanatory diagram, where the vertical axis represents the power spectrum and the horizontal axis represents the frequency. As shown by the thick line in FIG. 10, the fluctuation characteristic of the wind speed fluctuation at x (θ) = 300 cm on the floor 120 cm in FIG. 7 is that the power spectrum is proportional to the −1.6th power of the frequency. The value is close to.
[0020]
As described above, by using the operation control of the stepping motor 12 as shown in FIG. 5, the fluctuation of the wind speed on the floor 120 cm of the air-conditioned room 18 can be brought close to natural wind. In addition, the fluctuation characteristics of the wind speed fluctuation can be brought close to natural wind. Thereby, the wind speed fluctuation | variation of the air-conditioned room 18 with which the indoor unit 17 is equipped is close to natural wind, and can create a comfortable environment for residents. In addition, by making the angular velocity of the stepping motor for operating the deflecting plate constant, the voltage applied to the stepping motor is not increased, it is not necessary to use a stepping motor having a large allowable voltage, and the allowable voltage of the control circuit is increased. There is no need. Therefore, the cost of the stepping motor and the control circuit can be suppressed, and the wind speed fluctuation of the airflow can be brought close to the wind speed fluctuation of the natural wind in the living space of the air-conditioned room 18.
[0021]
5 is controlled between the temperature set by the user and the room temperature of the air-conditioned room 18 when the user selects a mode for operating the stepping motor 12 with the remote controller 20 or during cooling operation. This is effective when the temperature difference is large, or when the blowout temperature of the indoor unit 17 is high during the cooling operation. In addition, the range of the angle at which the vertical deflection plate 10 shown in the first embodiment operates, the angle for switching the moving direction of the stepping motor 12, the threshold value for determining the moving direction of the stepping motor 12 by generating a random number, The angular velocity of the stepping motor 12 is not limited to this. In addition, although the case where only the vertical deflection plate 10 is operated is shown, even if the horizontal deflection plate 11 is operated using the stepping motor 13, the vertical deflection plate 10 and the horizontal deflection plate 11 are operated simultaneously. You may let them. Further, the angular velocity of the stepping motor 12 may be larger when moving θ1 to θ2 than when moving θ2 to θ3. Further, when the temperature thermistor 15 is not provided, the piping temperature and the suction temperature may be detected, and the blowing temperature may be predicted from these related values.
[0022]
FIG. 11 is a characteristic diagram showing the relationship between the thermal sensation during cooling and the room temperature of the air-conditioned room 18. The vertical axis represents the cold feeling and the horizontal axis represents the room temperature. FIG. 12 is a characteristic diagram showing the relationship between the thermal sensation during cooling and the blowing temperature of the indoor unit 17, where the vertical axis represents the cold feeling and the horizontal axis represents the blowing temperature. The characteristic diagrams of FIGS. 11 and 12 are prepared based on the results of a questionnaire test conducted in the air-conditioned room 18, and the feeling of cold on the vertical axis ranges from 1.0 to 1.5. This is the area where I felt comfortable. From FIG. 11, when the stepping motor 12 or 13 is continuously operated, the room temperature falls below 26.degree. C., which is not comfortable, and from FIG. 12, the blowing temperature of the indoor unit 17 becomes 20.degree. C. or less. It can be seen that it deviates from the area where it feels comfortable.
[0023]
FIG. 13 is another control flow of the present invention showing the operation of the stepping motor 12 during the cooling operation. When the position of the vertical deflection plate 10 is detected (ST11), it is determined whether or not the vertical deflection plate 10 matches θ2 (ST12), and if it does not match (ST13), the operation is continued as it is, ST14) A room temperature of 26 ° C. or more and a blowing temperature of 20 ° C. or more are judged (ST15), and when the temperature is outside the predetermined temperature range where the user feels comfortable (ST16), the stepping motor is stopped (ST17). On the other hand, when the room temperature is 26 ° C or higher and the blowing temperature is 20 ° C or higher (ST18), a random number is generated (ST19) to check whether the threshold is 0.6 or higher (ST20, 22). If there is, move to the direction of θ3 (ST21), and if below, move to the direction of θ1 (ST23) to continue the operation of the stepping motor. Next, the operation will be described.
[0024]
The temperature of the air in the air-conditioned room 18 is detected by the temperature thermistor 14, the temperature of the indoor unit 17 is detected by the temperature thermistor 15, or the temperature of the air is predicted based on the piping temperature and the suction temperature. The position information is transmitted to the control circuit 16. When the temperature of the temperature thermistor 14 is 26 ° C. or higher and the blow-off temperature is 20 ° C. or higher, the stepping motor 12 is operated, and the control circuit 16 controls the stepping motor 12 so that it does not operate otherwise. The angle of the plate 10 is set to be nearly horizontal with respect to the ceiling. The stepping motor 12 operates the stepping motor 12 so that the vertical deflection plate 10 operates within a predetermined angle θ1 to θ3 as shown in FIG. θ2 is provided in the range of θ1 to θ3 so that θ2 is closer to θ1 than the center of θ1 and θ3, that is, closer to the horizontal direction. As shown in FIG. 5, during the operation of the stepping motor 12, when the angle of the up-and-down turning plate 10 becomes θ2, a random number from 0 to 1 is generated in the control circuit 16, and the direction of θ1 according to the magnitude of the random number. The control circuit 16 sends a signal to the stepping motor 12 so as to perform this operation. When the angle of the vertical deflection plate becomes θ1, it automatically moves in the direction of θ2, and when it becomes θ3, it automatically moves in the direction of θ2.
[0025]
As described above, by using the operation control of the stepping motor 12 as shown in FIG. 13, the fluctuation of the wind speed on the floor 120 cm of the air-conditioned room 18 can be brought close to natural wind. In addition, the fluctuation characteristics of the wind speed fluctuation can be brought close to natural wind. Thereby, the wind speed fluctuation | variation of the air-conditioned room 18 with which the indoor unit 17 is equipped is close to natural wind, and can create a comfortable environment for residents. Further, by controlling the operation of the stepping motor 12 in accordance with the room temperature of the air-conditioned room 18 and the temperature of the indoor unit 17, it is possible to create a thermal environment comfortable for the user. In addition, by making the angular velocity of the stepping motor for operating the deflecting plate constant, the voltage applied to the stepping motor is not increased, it is not necessary to use a stepping motor having a large allowable voltage, and the allowable voltage of the control circuit is increased. There is no need. Therefore, the cost of the stepping motor and the control circuit can be suppressed, and the wind speed fluctuation of the airflow can be brought close to the wind speed fluctuation of the natural wind in the living space of the air-conditioned room 18.
[0026]
Note that the control of the stepping motor 12 shown in FIG. 13 is effective when the user selects a mode in which the stepping motor 12 is automatically operated by the remote controller. It should be noted that the range of angles at which the vertical deflection plate 10 shown in the present invention operates, the angle at which the moving direction of the stepping motor 12 is switched, the threshold value for determining the moving direction of the stepping motor 12 by generating random numbers, and the stepping motor The angular velocity of 12 is not limited to this. Moreover, although the case where only the vertical deflection plate 10 is operated is shown, only the horizontal deflection plate 11 may be operated, or the vertical deflection plate 10 and the horizontal deflection plate 11 may be operated simultaneously. Further, the stepping motor has been described as an example of the driving means for each deflecting plate. However, the present invention is not limited to this type, and other types of motors such as a brushless motor may be used.
[0027]
The operation of the left and right deflection plate 11 can be performed in the same manner as in FIGS. 5 and 13 by controlling the stepping motor 13 in the same manner as described above. The left and right turning plates 11 can be operated by a single stepping motor in the same direction for a plurality of sheets. In this case, it is possible to flow wind at a wide angle across the entire left and right. For example, when the right hand end of the indoor unit is set to θ1 with respect to the center line of the indoor unit and the left hand end is set to θ3 with respect to the center line, the specified The angle θ2 is set within the operating range of the left and right deflection plate 11. Furthermore, if this specific set angle θ2 is provided close to the narrower one of θ1 and θ3, a wide area where comfort can be obtained can be secured. The specific angle θ2 can be set by the remote controller 20, or can be reset according to the installation location of the indoor unit 17. This setting is automatically performed by setting the operating range of the left and right deflection plate 11.
[0028]
Further, the position of the person is detected by the human body detecting device 21 capable of detecting the human body by detecting the infrared rays shown in FIG. 1, and the direction of the person is set to a specific angle θ2, thereby using the air conditioner. A more comfortable space for a person to move to any position in the room. The specific set angle θ2 does not have to be one point. If the upper and lower limit numerical values of the predetermined angle range can be set, there are more opportunities for the direction change plates 10 and 11 to exist at the angle θ2, and the orientation selection opportunities increase, making it more comfortable. Furthermore, if this selection operation is provided with hysteresis, that is, if it moves from the top in the up and down operation, the direction selection operation of the deflecting plate is performed at the specific angle below, and from the bottom, the direction selection operation is performed at the specific angle above. By doing so, the direction can be changed more relaxedly. Furthermore, it is a matter of course that the left and right direction change plates may be operated separately by using the stepping motors on the left side and the right side of the unit center. When a person's presence position is detected, air conditioning with higher quality can be performed if the focus is focused not only on the left and right but also on the upper and lower turning plates.
[0029]
When the stepping motor 12 is operated so that the vertical deflection plate 10 operates within a predetermined angle θ1 to θ3 as shown in FIG. 4, θ2 is set within the range of θ1 to θ3 from the center of θ1 and θ3. Although it has been described that a specific angle that is θ2 is set in advance so as to be close to θ1, the reason for this will be described with reference to FIG. In FIG. 7, on the line 120 cm above the floor, the point A is the X (70 °) position, and the point B is the X (7 °) position. It is assumed that the upper and lower vanes attached to the indoor unit that is the vertical deflection plate are moved at a constant angular velocity of 1.5 deg / s and a period of 30 s so as to face this 7-70 ° range. By this operation, the point where the wind direction vector intersects the 120 cm line on the floor was investigated. FIG. 14 shows the characteristics under the plot of the intersecting points every second. In FIG. 14, the horizontal axis is the distance X (θ) from the wall surface on the indoor unit side. Since θ2 is closer to θ1 than the center of θ1 and θ3, that is, the airflow can be considered as a whole for a large room, in other words, the airflow can be considered anywhere in the room. Yes. However, if the setting of θ2 which is the specific angle can be switched by, for example, a remote controller or a switch provided in the indoor unit, a feeling of airflow that the user always feels comfortable can be obtained at a predetermined position. .
[0030]
The present invention has a refrigerant circuit composed of, for example, a compressor, an indoor heat exchanger, and an outdoor heat exchanger, and has the indoor heat exchanger, a blower, a blowout port, and a suction port inside, and is arranged vertically in the blowout air passage. A room that has left and right direction change plates, has stepping motors that operate the upper and lower direction left and right direction change plates, has a control circuit, collides the wind blown from the blower with the direction change plates, and turns and blows the air In the unit, the upper, lower, left and right deflection plates are operated within a predetermined angle, and a predetermined angle is provided within the angle, and when the upper, lower, left and right deflection plates reach a predetermined angle, a random number is generated by the control circuit. The direction of movement of the up / down direction change plate and the left / right direction change plate is determined according to the size of the random number, and by controlling the operation of the up / down direction and left / right direction change plates, the airflow in the living space of the air-conditioned room is controlled. A control device for an air conditioner to bring the wind speed fluctuation closer to that of natural wind. That. Furthermore, the present invention can be used even when the indoor heat exchanger and the outdoor heat exchanger of the refrigerant circuit are not separated, that is, in the case of a dehumidifier in which a condenser and an evaporator are integrated in the main body, Only an air purifier or a blower without a refrigerant circuit or a heat exchanger may be used.
[0031]
In addition, the air conditioner control device controls the temperature of sensation in the living space of the air-conditioned room by controlling the ON / OFF operation of the stepping motor according to the blow-out temperature of the indoor unit and the room temperature. Also, by making the angular velocity of the stepping motor for operating the deflecting plate constant, the voltage applied to the stepping motor is not increased, it is not necessary to use a stepping motor having a large allowable voltage, and the allowable voltage of the control circuit is increased. There is no need. Therefore, it is a control device for an air conditioner that suppresses the cost of the stepping motor and the control circuit, and brings the fluctuation in the wind speed of the airflow close to the fluctuation of the natural wind in the living space of the air-conditioned room.
[0032]
As is apparent from the above, the air conditioner according to the present invention has a refrigerant circuit including the compressor 1, the indoor heat exchanger 5, and the outdoor heat exchanger 3, and the indoor heat exchanger 5, the blower 6, and the outlet. 8 and a suction port 7, an up-and-down turning plate 10 and a left-and-right turning plate 11 in the blowing air passage, and a stepping motor 12 that operates the up-and-down turning plate 10 and the left-and-right turning plate 11. And the control unit 16 is an indoor unit that causes the wind blown from the blower 6 to collide with the direction change plate, and changes the direction and blows the air. The vertical direction change plate 10 is operated within a predetermined angle, A predetermined angle is provided within the angle, and when the up-and-down turning plate 10 reaches the predetermined angle, a random number is generated by the control circuit 16 and the moving direction of the up-and-down turning plate 10 is determined according to the magnitude of the random number. A control device for an air conditioner characterized by controlling the operation of the up and down turning plate 10 A it is, by using a control operation of the stepping motor 12, can be brought close to the natural wind wind speed variations in floor 120cm of the air conditioning chamber 18. In addition, the fluctuation characteristics of the wind speed fluctuation can be brought close to natural wind. Thereby, the wind speed fluctuation | variation of the air-conditioned room 18 with which the indoor unit 17 is equipped is close to natural wind, and can create a comfortable environment for residents. In addition, by making the angular velocity of the stepping motor for operating the deflecting plate constant, the voltage applied to the stepping motor is not increased, it is not necessary to use a stepping motor having a large allowable voltage, and the allowable voltage of the control circuit is increased. There is no need. Making each speed constant means that the control of the motor is not greatly changed. For example, the angular speed is not changed during a reciprocating motion within a short range or a long range, or a slight change is meant. Therefore, the cost of the stepping motor and the control circuit can be suppressed, and the wind speed fluctuation of the airflow can be brought close to the wind speed fluctuation of the natural wind in the living space of the air-conditioned room 18.
[0033]
As apparent from the above, the control device for an air conditioner according to the present invention has a refrigerant circuit including the compressor 1, the indoor heat exchanger 5, and the outdoor heat exchanger 3, and the indoor heat exchanger 5 It has a blower 6, an air outlet 8 and a suction port 7 inside, and has an up / down direction change plate 10 and a left / right direction change plate 11 in the blowout air passage, and operates the up / down direction change plate 10 and the left / right direction change plate 11 An indoor unit having a stepping motor 12, a control circuit 16, and causing the wind blown from the blower 6 to collide with the direction change plate and turning and blowing the air, and the vertical direction change plate 10 within a predetermined angle. The control circuit 16 generates a random number when the vertical deflection plate 10 reaches a predetermined angle, and the vertical deflection plate 10 moves according to the magnitude of the random number. The air is characterized in that it determines the direction to perform and controls the operation of the up-and-down turning plate 10 It is a control device for a Japanese machine, and the operation of the stepping motor 12 is controlled according to the temperature of the temperature thermistor 14 and the temperature thermistor 15, so that the user can feel the chill in 120 cm above the floor of the air-conditioned room 18. Wind speed fluctuations can be made closer to natural winds. In addition, the fluctuation characteristics of the wind speed fluctuation can be brought close to natural wind. Thereby, the wind speed fluctuation | variation of the air-conditioned room 18 with which the indoor unit 17 is equipped is close to natural wind, and can create a comfortable environment for residents.
[0034]
【The invention's effect】
  An air conditioner according to the present invention has a main body that has a blower and blows out sucked air from a blower outlet, and a change in the flow of air that is provided in the main body and that blows out from the blower outlet in at least one of the vertical direction and the horizontal direction. A direction plate, driving means for changing the angle of the direction change plate and causing the wind blown from the blower to collide with the direction change plate, and controlling the drive means to move the direction change plate in the vertical and horizontal directions. At least one direction is moved from one end to the other end within a predetermined angle, and a random number is generated when the turning plate reaches a specific angle set within the predetermined angle. Control means for selecting the direction of movement of the deflecting plate as one end or the other end according to the size, and the specific angle can be changed. Make the user feel the airflow change close to nature, It is possible to create a land good environment device is obtained.
[0037]
Since the specific angle of the present invention is set so as to be changeable in the direction detected by the human body detection means, a comfortable air conditioning can be obtained no matter where it moves.
[0038]
Since the specific angle of the air conditioner of the present invention has a predetermined range or a plurality of angles, an apparatus that is easy to use and highly reliable can be obtained.
[0039]
The air conditioner of the present invention includes a refrigerant circuit including a compressor, an indoor heat exchanger, and an outdoor heat exchanger, an up / down direction changing plate that changes the air direction in the up / down direction, and a left / right direction changing plate that changes the air direction in the left / right direction. Since the main body is an indoor unit that blows out air conditioned by the indoor heat exchanger into the room, comfortable air conditioning can be obtained regardless of the size of the room.
[0040]
In the air conditioner of the present invention, the driving means is turned ON / OFF according to the temperature of the sucked air or the blown air, so that comfortable air conditioning can be obtained when necessary.
[0041]
In the air conditioner of the present invention, the angular velocity due to driving of the driving means is made substantially constant, so that a highly reliable device can be obtained.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an air conditioner showing a configuration of a first embodiment of the present invention.
FIG. 2 is a configuration diagram of an indoor unit showing the configuration of Embodiment 1 of the present invention.
FIG. 3 is a configuration diagram of a vertical direction change plate of an indoor unit showing the configuration of Embodiment 1 of the present invention.
FIG. 4 is a diagram illustrating an operating range of an up / down turning plate showing the configuration of the first embodiment of the invention.
FIG. 5 is a control flow of the stepping motor showing the configuration of the first embodiment of the present invention.
FIG. 6 is an explanatory diagram showing an air-conditioned room in an indoor unit showing the configuration of Embodiment 1 of the present invention.
FIG. 7 is a diagram showing a cross-sectional view of an air-conditioned room in an indoor unit showing the configuration of Embodiment 1 of the present invention.
FIG. 8 is a characteristic diagram showing an average velocity distribution at 120 cm above the floor of the air-conditioned room in the configuration of Embodiment 1 of the present invention.
FIG. 9 is a characteristic diagram showing fluctuations in wind speed at 120 cm above the floor of the air-conditioned room showing the configuration of Embodiment 1 of the present invention.
FIG. 10 is a characteristic diagram showing fluctuation characteristics of wind speed fluctuation at 120 cm above the floor of the air-conditioned room showing the configuration of the first embodiment of the present invention.
FIG. 11 is a characteristic diagram showing the relationship between cold feeling and room temperature, showing the configuration of Embodiment 1 of the present invention.
FIG. 12 is a characteristic diagram showing the relationship between the feeling of cold and the blowing temperature, showing the configuration of Embodiment 1 of the present invention.
FIG. 13 is a diagram showing another control flow of the stepping motor showing the configuration of the first embodiment of the present invention.
FIG. 14 is a characteristic diagram showing the characteristics of the configuration of the first embodiment of the present invention in which the wind direction vector intersects the line 120 cm above the floor of the air-conditioned room.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Compressor, 2 Four-way valve, 3 Outdoor heat exchanger, 4 Outdoor unit, 5 Indoor heat exchanger, 6 Blower, 7 Air inlet, 8 Air outlet, 9 Air outlet, 10 Vertical direction change plate, 11 Right and left Turning plate, 12 stepping motor, 13 stepping motor, 14 temperature thermistor, 15 temperature thermistor, 16 control circuit, 17 indoor unit, 18 air-conditioned room, 19 support shaft, 20 remote control.

Claims (6)

A main body having a blower to blow out sucked air from a blowout port, a direction change plate that is provided in the main body and changes a flow of air blown from the blowout port in at least one of a vertical direction and a horizontal direction, and the direction change A driving means for driving an operation of changing the angle of the plate and causing the wind blown from the blower to collide with the direction change plate, and the drive means are controlled to make the direction change plate at least one of the vertical direction and the horizontal direction. the causes are repeating the operation to move to the other end than the one end portion within a predetermined angle, generates a random number when the deflection plate to a specific angle which is set to the predetermined inside angle has reached, Control means for selecting the direction in which the direction change plate moves in the direction of one end or the other end according to the size of the random number, and the specific angle can be changed. , it reaches the specific angle Air conditioner, wherein the closer the wind speed variation of the air flow blown from the deflecting said air outlet by causing select the movement of movement of the plate to the wind speed variation of the natural wind to come.   The air conditioner according to claim 1, wherein the specific angle is set to be changeable in a direction detected by the human body detecting means.   The air conditioner according to claim 1 or 2, wherein the specific angle has a predetermined range or a plurality of angles.   A refrigerant circuit comprising a compressor, an indoor heat exchanger, and an outdoor heat exchanger, and at least one of an up / down direction wind direction changing plate that changes the wind direction in the up / down direction and a left / right direction wind direction changing plate that changes the wind direction in the left / right direction, The air conditioner according to claim 1, wherein the main body is a unit that blows out air conditioned by the indoor heat exchanger into the room. The air conditioner according to any one of claims 1 to 4, wherein the driving means is turned on and off in accordance with the temperature of the sucked air or the blown air. The air conditioner according to any one of claims 1 to 5, wherein an angular velocity by driving of the driving means is substantially constant.

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