JP5372671B2 - Air conditioner and blowing air flow control method thereof - Google Patents

Description

  The present invention relates to an air conditioner that controls the air direction of air blown out from a louver and a method for controlling the air flow of the air conditioner, and is particularly suitable for a ceiling-embedded air conditioner that has an air outlet around an air inlet. It is a thing.

  The ceiling-embedded air conditioner has a suction port on the lower surface of the main body, and a blower outlet is provided around the suction port. The blower outlet has a wind direction changing blade for controlling the wind direction in the vertical direction. It is equipped. The remote controller for operating the air conditioner is provided with a blowout port and a wind direction setting switch, and appropriately selects the blowout port and sets the wind direction of the wind direction changing blade at the selected blowout port.

  Conventionally, when an operation mode such as air conditioning is set and then the operation is stopped halfway, it is necessary to reset the air directions of a plurality of outlets when the operation is resumed.

  In the air conditioner described in Patent Document 1, the controller for controlling the angle of each wind direction changing blade includes storage means for storing the angle of each wind direction changing blade, and each wind direction changing blade at the set angle stored at the start of operation. The control means for setting the angle is provided. Thereby, the mode before the operation stop is stored, and the operation can be resumed without resetting the wind direction or the like.

Japanese Patent Laid-Open No. 5-126387

  However, each time the air conditioner of Patent Document 1 is started, the air outlet and the wind direction from which the wind blows must be set for each mode desired by the user, and the user's intention is controlled by the individual control of the blowout louver. However, it has not been sufficiently considered to realize the air contact with the air easily and efficiently stir the air in the entire room to reduce the temperature unevenness in the room.

  An object of the present invention is to obtain an air conditioner and its blown air flow control method capable of reducing indoor temperature unevenness by simple individual louver control.

  In order to achieve the above object, the present invention provides an air conditioner main body provided on a ceiling, an inlet provided on the bottom surface of the air conditioner main body for sucking air from the room, and heats the sucked air. A heat exchanger to be exchanged, a blower fan that guides air from the suction port to the heat exchanger, a blowout port that is provided around the suction port and blows the heat-exchanged air indoors, and the blowout port An air conditioner provided with a plurality of louvers for controlling the wind direction of the air blown out, a control device for controlling the plurality of louvers, and an individual louver setting remote controller for selecting an operation mode of the air conditioner The air conditioner has a plurality of operation modes including an energy saving mode, and the control device adjusts the wind direction of the plurality of louvers according to the operation mode selected by the individual louver setting remote controller. When the energy saving mode is set, one of the plurality of louvers is automatically swung, the other louvers are fixed, and the louver is automatically swung every time a predetermined switching time elapses. The next louver is controlled to auto-swing, and one louver that auto-swings is sequentially switched to the next.

  With this configuration, room air having a temperature difference can be agitated even with simple control in which one louver swings automatically.

  In the above, a remote controller dedicated to individual louver operation having a plurality of adjustment buttons for individually operating the plurality of louvers is provided, and the operation target louvers are operated in auto swing operation, horizontal blowing operation, and bottom blowing operation by operating each adjustment button. It is preferable to be configured to be switchable.

  By comprising in this way, the user can switch the air conditioner mode which controls a louver easily.

  Moreover, it is preferable to display the selected operation mode on the display portion of the individual louver setting remote controller.

  With this configuration, the user can easily grasp the current air conditioner mode.

  The present invention also includes an inlet for sucking air from the room, a heat exchanger for exchanging heat of the sucked air, a blower fan for guiding air from the inlet to the heat exchanger, and the inlet The plurality of louvers of the air conditioner having a blow-out port that blows out the heat-exchanged air that is provided around the room, and a plurality of louvers that are provided at the blow-out port and control the wind direction of the blown-out air The air conditioner has a plurality of air conditioner modes, adjusts the wind direction of the louver according to a mode selected from these modes, and controls the plurality of air conditioners. Auto-swing is performed by automatically swinging one of the louvers and a louver next to the louver that is auto-swinging every time a predetermined switching time elapses. One louver, characterized in that switches to the sequentially next to.

  By comprising in this way, the indoor air with a temperature difference can be stirred by the simple control in which a louver automatically swings one by one.

  In the above, the air conditioner includes a room temperature detection unit, a room temperature setting unit, and a control unit, and the step of detecting the room temperature by the room temperature detection unit, the detected room temperature and the room temperature. The step of determining whether the temperature difference from the set temperature set by the setting means exceeds a predetermined value by the control means, and the length of the switching time based on the determination result of the temperature difference and the predetermined value Preferably determining a step.

  By comprising in this way, the switching time of the louver which carries out an automatic swing can be judged appropriately, and indoor air with a temperature difference can be stirred efficiently.

  Moreover, in the above, when starting an air conditioner, it is preferable that the said switching time is shorter than the time of the predetermined time passage after starting.

  By comprising in this way, indoor air can be efficiently stirred at the time of starting with a large temperature difference with room temperature and outside temperature.

  According to the present invention, indoor temperature unevenness can be reduced by simple individual louver control.

Explanatory drawing of the blowing airflow control method in the air conditioner of Example 1 of this invention. The perspective view of the air conditioner of Example 1 of this invention. The schematic front view of the remote control only for individual louver operation in the air conditioner of Embodiment 1 of the present invention. The block diagram explaining the control system in the air conditioner of Example 1 of this invention. The flowchart explaining control of the louver in the air conditioner of Example 1 of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram for explaining a method for controlling a blown air flow of an air conditioner according to a first embodiment of the present invention, and is a view of the air conditioner body 1 as viewed from below. An air inlet 2 is provided at the center of the air conditioner body 1, and an air outlet 3 is formed around the air inlet 2. Further, four louvers 4, 5, 6, and 7 capable of controlling the wind direction are arranged around the outlet 3 so as to be blown in four directions.

  When the air conditioning operation is started, a blower fan (not shown) rotates and the louvers 4, 5, 6, and 7 are opened. The individual louver setting remote controller 8 is provided with a mode switching button (not shown), and the operation mode can be switched by pressing the mode switching button. For example, it can be changed in the order of energy saving mode → fixed mode → individual designation mode → individual louver OFF setting → energy saving mode every time the button is pressed. The set louver mode is displayed on the display unit of the individual louver setting remote controller 8. Hereinafter, the operation in each operation mode will be described.

When the energy saving mode is set, for example, the louver 4 among the four louvers repeats the auto swing operation as shown in FIG. The other louvers 5, 6 and 7 are fixed to about 35 ° with 0 ° being fully closed (hereinafter referred to as horizontal blowing operation), and after a predetermined time (switching time) has elapsed, as shown in FIG. Performs an automatic swing operation, and the other louvers 4, 6, and 7 perform a horizontal blowing operation.
Next, after a predetermined switching time has elapsed, the louver 6 performs an automatic swing operation as shown in FIG. 5C, and the other louvers 4, 5, and 7 are fixed and a horizontal blowing operation is performed. Further, when a predetermined switching time elapses, the louver 7 performs an automatic swing operation, and the other louvers 4, 5, and 6 are fixed and perform a horizontal blowing operation as shown in FIG. Thereafter, the control returns to the operation shown in (a) and repeats the control in which the auto-swinging louver sequentially moves to the next.

Thus, by automatically swinging only one louver, control can be simplified and power saving of the motor that drives the louver can be achieved. Further, since the louvers that auto-swing are sequentially changed, the room air can be stirred even if only one louver is swinging, and the temperature distribution in the room can be made uniform. Furthermore, it is possible to reduce discomfort caused by long-term wind hitting a person near the air outlet of the louver that is swinging automatically.
If all the louvers are fixed, temperature unevenness is likely to occur in the room, particularly when the difference between the outside air temperature and the set temperature is large. Therefore, it is preferable that the louvers that automatically swing in order to efficiently stir the air in the room are sequentially changed. .

  When the fixed mode is set, the louvers 4, 5, 6, and 7 perform operations individually set in advance. All louvers may be set to the same angle or different angles. When the room temperature becomes uniform after a while since startup, for example, by setting all the louvers to horizontal blowing operation, the louver automatically swings and the wind perception that is felt by people near the air outlet is felt. Pleasure can be prevented.

  FIG. 2 shows an overall view of an air conditioner according to the present invention. In order to control the air flow without complicated settings, an individual louver setting remote controller 8 and an individual louver operating remote controller 9 are used. In the case of the remote controller 9 dedicated to individual louver operation, an operation signal is wirelessly input to the light receiving unit 10 of the air conditioned body 1.

When the individual designation mode is set, the following operation is performed. FIG. 3 is a schematic front view of the remote controller 9 dedicated to individual louver operation of the air conditioner in FIG. When one of the louver angle adjustment buttons 13, 14, 15, 16, for example, the adjustment button 13 of the remote controller 9 dedicated to individual louver operation is pressed during operation, the louver 4 corresponding to the adjustment button 13 performs an automatic swing operation. Repeat the auto swing operation.
Next, when the adjustment button 13 is pressed again during operation, a horizontal blowing operation signal is input, and the louver 4 corresponding to the adjustment button 13 performs horizontal blowing operation. Further, when the adjustment button 13 is pressed again during operation, a down blowing operation signal is input, and the louver 4 is fixed at an angle of about 55 ° with 0 ° being fully closed (hereinafter referred to as down blowing operation). . When the adjustment button 13 is pressed again during operation, the louver 4 returns to the auto swing state. Each time this button is pressed, the operation is switched in the order of horizontal blowing operation → down blowing operation → auto swing operation. The adjustment buttons 13, 14, 15, and 16 correspond to the louvers 4, 5, 6, and 7, respectively. When another adjustment button is pressed in the middle, the operation can be switched to the operation of the louver corresponding to that button, and the louver desired by the user can be appropriately operated.

  By simple key operation of the remote controller 9 dedicated to individual louver operation, the wind direction and air volume of the blown air can be adjusted in various patterns, and the air conditioning effect can be enhanced in any area desired by the user. Also, by programming a plurality of blowing airflow patterns in advance, the user can easily select a pattern with the remote controller. Furthermore, by displaying the selected air conditioning mode on the display portion of the connected individual louver setting remote controller 8, it is possible to easily recognize how the wind direction and the air volume are currently controlled.

  When the individual louver is set to OFF, all louvers perform the same operation.

  FIG. 4 is a block diagram illustrating the control system in the first embodiment of the present invention. The control device 11 provided in the air conditioner main body 1 includes an indoor temperature detection means 19 for detecting the intake air temperature by the temperature detection device 12 and detecting the indoor temperature from the intake air temperature, and an indoor for setting the indoor temperature. Temperature setting means 20 and louver mode setting means 21 for setting the operation mode of the louver are provided. The room temperature, the set temperature, and the louver mode are stored in the control means 22, and the control means 22 determines whether or not the detected temperature difference between the room temperature and the set temperature exceeds a specified value, and the set louver mode is set. The following signal is output to the louver motor driving means 23.

  FIG. 5 is a flowchart illustrating louver control according to the first embodiment of the present invention. In STEP 1 after the start of operation, the room temperature is detected by the room temperature detecting means 19 and a signal is output to the control device 11. Next, a temperature difference between the set temperature and the room temperature stored in the control means 22 is calculated in STEP2, and it is determined in STEP3 whether the specified temperature difference is exceeded.

  If the calculated temperature difference exceeds the specified temperature difference, a signal is output from the control means 22 to the louver motor driving means 23 so that the switching time of the louver that performs auto swing in STEP 5 is, for example, 1 minute. Thereafter, the operation returns to STEP 1 and this operation is repeated until the temperature difference is within the specified temperature difference. When the calculated temperature difference falls within the specified temperature difference, a signal is output from the control means 22 to the louver motor driving means 23 so that the switching time of the louver that automatically swings in STEP 4 is, for example, 10 minutes.

  Since the difference between the set temperature and the room temperature is particularly large at startup, the switching time of the louver that automatically swings is shortened. By shortening the rotation for switching, air can be actively stirred at the time of startup. When the room temperature approaches the set temperature, the switching time of the louver that automatically swings is lengthened. In addition, it is possible to make the control simpler by performing a control to increase the switching time of the louvers when a predetermined time has elapsed after activation using a timer.

DESCRIPTION OF SYMBOLS 1 Air conditioner main body 2 Intake port 3 Outlet 4, 5, 6, 7 Louver 8 Individual louver setting remote control 9 Individual louver operation exclusive remote control 10 Light-receiving part 11 Control device 12 Temperature detection device 13, 14, 15, 16 Adjustment button 17 Mode switching button 18 Run / stop key 19 Indoor temperature detecting means 20 Indoor temperature setting means 21 Louver mode setting means 22 Control means 23 Louver motor driving means

Claims (4)

An air conditioner body installed on the ceiling;
A suction port provided on the bottom surface of the air conditioner body for sucking air from the room;
A heat exchanger for exchanging heat from the air drawn from the inlet;
A blower fan for guiding air from the suction port to the heat exchanger;
A blowout port that blows out air, which is provided around the suction port and heat-exchanged by the heat exchanger, into the room;
A plurality of louvers provided at the outlet for controlling the direction of air blown from the outlet ;
A control device for controlling the plurality of louvers;
In an air conditioner equipped with an individual louver setting remote control for selecting an operation mode of the air conditioner,
The air conditioner has a plurality of operation modes including an energy saving mode,
The control device adjusts the wind direction of the plurality of louvers according to the operation mode selected by the individual louver setting remote controller. When the control device is set to the energy saving mode, one of the plurality of louvers is set. The louver next to the auto-swinging louver is controlled to automatically swing every time a predetermined switching time elapses, and one louver that performs auto-swing is sequentially Configured to switch to the next ,
Equipped with an individual louver operation remote control that has a plurality of adjustment buttons for individually operating the plurality of louvers, and the operation target louver can be switched to auto swing operation, horizontal blowing operation, and bottom blowing operation by operating each adjustment button. an air conditioner characterized in that it constitutes. Oite to claim 1, the display portion of the individual louver setting remote control, air conditioner and displaying the operating mode selected. An inlet for inhaling air from the room;
A heat exchanger for heat exchanging the air sucked from the suction port,
A blower fan for guiding air from the suction port to the heat exchanger;
A blowout port that blows out air, which is provided around the suction port and heat-exchanged by the heat exchanger, into the room;
In the method of controlling the air flow by controlling the plurality of louvers of an air conditioner having a plurality of louvers provided at the air outlet and controlling the air direction of air blown from the air outlet,
The air conditioner includes a plurality of air conditioner modes, adjusts the wind direction of the louver according to a mode selected from these modes, automatically swings one of the plurality of louvers, By controlling the louver next to the auto-swinging louver every time a predetermined switching time elapses, one louver that auto-swings is sequentially switched to the next ,
The air conditioner includes an indoor temperature detection unit, an indoor temperature setting unit, and a control unit, and includes a step of detecting an indoor temperature by the indoor temperature detection unit, and the detected indoor temperature and the indoor temperature setting unit. A step of determining by the control means whether a temperature difference from a set temperature that has been set exceeds a predetermined value, and a length of the switching time is determined based on a determination result between the temperature difference and the predetermined value. And a step of controlling the blown air flow of the air conditioner. 4. The method according to claim 3 , wherein the switching time is shorter when the air conditioner is activated than when a predetermined time has elapsed after activation.

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