JPH04347446A - Method for controlling angle of louver in air conditioner - Google Patents

Abstract

PURPOSE:To perform a positive control over a louver blowing angle by a method wherein some light receiving elements having different light receiving angles from each other are installed within an indoor device, the number of frequencies of the light receiving elements received from a remote controller is statically processed to judge a fixing position of the indoor device. CONSTITUTION:An indoor device 1 is provided with louvers 4 for adjusting a horizontal blowing direction of conditioned air. A receiving part 6 for receiving an operating instruction for each of the locations from a remote controller 5 is provided with a plurality of light receiving elements 71 to 75. If a front surface is set at 0 deg., for example, a light receiving element 71 receives a signal from a direction oriented by 45 deg., a light receiving element 72 receives a signal from a direction oriented by 75 deg. and a light receiving element 73 receives a signal from a direction oriented by 90 deg., respectively. The received signals are inputted to a control device 8. The control device 8 discriminates the light receiving elements 71 to 75 receiving signals from the remote controller 5. The control device performs a statistic processing of the number of frequencies of the elements 71 to 75 to be received, louvers 4 are directed toward the position of the remote controller 5 and then the louvers 4 are controlled in their driving by a predetermined angle around it. With such an arrangement as above, a comfortable air conditioning can be carried out without blowing air in a useless direction.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver angle control method for an air conditioner, and more particularly to a louver angle control method for an air conditioner that can adjust the blowing angle of the louver depending on the installation condition of an indoor unit.

0002

2. Description of the Related Art In a conventional air conditioner, the blowing direction of cold air or hot air is determined by a louver provided at the air outlet for adjusting the vertical direction and horizontal direction. Among these louvers, as shown in FIG. 4, a louver b for horizontal horizontal adjustment is provided on the front surface of the indoor unit a so as to be horizontally rotatable. When this louver b is at the position indicated by the dotted line in the figure, which is 90 degrees orthogonal to the front surface of the indoor unit a, the air is blown perpendicularly from the front surface.
When a command to "swing" is given, the device is rotated periodically within a predetermined angle θ around the position indicated by the dotted line, so that conditioned air can be blown out to the entire area of room c.

0003

[Problems to be Solved by the Invention] However, when indoor unit a is installed in a corner of room c as shown in FIG. There is a problem in that even if the air is blown toward the wall d near the air conditioner, the effectiveness of the air conditioning is low.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a method for controlling the louver angle of an air conditioner, which can accurately control the blowing angle of the louver depending on the installation condition of the indoor unit.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an indoor room having a louver that adjusts the horizontal blowing direction and a drive device that drives the louver whose direction is determined within a predetermined angular range. In the louver angle control method for an air conditioner, the indoor unit is provided with a plurality of light-receiving elements having different light-receiving angles, and the indoor unit is provided with a plurality of light-receiving elements having different light-receiving angles. The frequency of the light receiving element receiving the transmission signal is statistically processed, and based on the frequency, the installation position of the indoor unit is determined, and the blowing direction of the louver and its rotation range are set.

[0006]

[Operation] According to the above configuration, the indoor unit is provided with a plurality of light receiving elements having different reception angles, and when driving the louver, the frequency of the light receiving elements receiving remote control signals is statistically processed. The relationship between the indoor unit and the remote control position where the user is located is known, and by rotating the louver around the position specified by the remote control, there is no wastage in the blowing direction and comfortable air conditioning can be achieved.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

First, the outline of an air conditioner will be explained with reference to FIG.

In FIG. 2(a), it is assumed that the indoor unit 1 is attached to the wall 3 at the right corner of the room 2. This indoor unit 1
A louver 4 is provided to adjust the horizontal blowing direction of conditioned air. The louver 4 is set so that its blowing direction is 90 degrees with respect to the front surface of the indoor unit 1 when shipped from the factory. The indoor unit 1 is provided with a receiving section 6 that receives various operation commands from the remote controller 5. This receiving section 6 is provided with a plurality of light receiving elements 71 to 75 having different receiving angles. These light receiving elements 71 to 75 have their front faces set at 0°.
For example, the light receiving element 71 is in the 45° direction, the light receiving element 72 is in the 75° direction, the light receiving element 73 is in the 90° direction,
The light receiving element 74 is in the 105° direction, and the light receiving element 75 is in the 13° direction.
It is designed to receive signals in a 5° direction. The received signals from these light receiving elements 71 to 75 are input to the control device 8, and the operation is controlled according to the operation details instructed by the remote controller 5. Although not shown, this control device 8 controls the drive of a compressor, an indoor/outdoor fan, etc. based on an operation command from a remote controller 5, and also controls a louver drive motor when a "swing" command for the louver 4 is received from the remote controller 5. It is designed to drive. In this case, the control device 8 selects the light receiving elements 71 to 71 that have received the transmission signal from the remote controller 5.
75 and statistically processes the frequency of receiving elements 71 to 75 every time there is a driving command, directs the louver 4 to the position of the remote controller 5, and drives the louver 4 at a predetermined angle around it. It is designed to be controlled as follows.

FIG. 1 shows a control block diagram of this control device 8. As shown in FIG. The signal from the remote controller 5 is sent to the receiver 6
When the signal is input to the statistical processing unit 10 and the control unit 11 that controls the air conditioning equipment. First, the control unit 11 receives the operation details from the remote controller 5, such as heating and cooling, set temperature, etc.
The fan motor 12 and compressor motor 13 are driven based on information such as air volume. The statistical processing unit 10 uses the remote control 6
Each time there is a transmission from
1 to 75 is received, stores the received element, and sequentially adds up the number of receptions.
When the number of transmissions from the remote controller 6 reaches a predetermined number, the element having the highest frequency of reception among them is determined, and output is sent to the louver angle control unit 14 so that the louver 4 faces in the direction in which that receiving element receives data. . When a louver drive signal (swing) is output from the remote controller 6, the louver motor 16 is driven via the louver drive unit 15 so that the louver 4 rotates within a predetermined range around the angle set by the louver angle control unit 14. It is supposed to be done.

Reference numeral 17 denotes a power supply detection unit that detects whether the power is turned on or off, and when the power is turned on during installation, it sends a reset signal to the statistical processing unit 10 and the louver angle control unit 14 to set initial values. . In addition, in the event of a power outage or relocation,
Since the information such as the frequency number stored in the statistical processing unit 10 is deleted, a reset signal is transmitted to set the initial value in order to perform statistical processing again. At this time, when the reset signal is input, the louver angle control section 14 takes the louver angle and rotation range stored immediately before the power was turned off.

Next, a flowchart of this control device 8 will be explained with reference to FIG.

First, in FIG. 3(b), the front surface of the indoor unit is set at 0°, and the angles are, for example, 45°, 75°, 90°, 1,05°, 13°.
Assume that there are light receiving elements 71 to 75 at 5 degrees, respectively. In this case, for example, if there is a transmission from a 45° direction, the light receiving element 71 will receive it, and a transmission from a 75° direction will be received by the light receiving element 72, but if the transmission direction is around 60°, the light receiving element 71, 72, the one with the stronger reception strength stores the number of receptions.

In FIG. 3(a), when control is started, it is determined whether or not to start energization, and if energization is started (YES),
Set the number of transmissions k=1 to 20. Next, after determining whether there is a signal reception from the remote control 21, the number of transmissions k
It is determined 22 whether or not the number of times is 50. Since the answer is NO at the start of control, the strongest receiving element among the light receiving elements 71 to 75 is detected 23, and then the frequency a(n) of the strongest receiving element 7n is added {a(n)=a( n)+
1} Do. Next, set 24 the number of transmissions k to k+1,
After determining that m is not 1 (YES), m = 0
The setting memory 26 is set to the louver rotation range of 60 to 120 degrees. Next, it is determined whether or not there is a louver rotation command in the received signal 27, and if there is (YES), a louver rotation command is output within the memorized louver rotation range (60 to 120 degrees in this case). Later, other controls are entered and judgment 2 is performed again.
7, when there is no louver rotation command (NO), it is determined whether the received signal is a louver rotation stop signal or not. If it is a stop signal during operation (YES), a louver motor stop command is issued. , enter other controls.

First, the above chart is repeated until the number of transmissions k reaches 50, and the frequency a(n) of the strongest receiving element 7n is added each time the transmission is performed. Next, when the number of transmissions k reaches k=50, the decision 22 is YES, and the frequency number of each light receiving element 71 to 75 added up to that point {a(n)=a(n)+1} Determine the most frequent value. At this time, if the frequency of the light receiving element 71 is high, the louver rotation range is set to 30 to 90 degrees and stored 31.
If the frequency of the light receiving element 72 is high, the louver rotation range should be increased by 4
If the frequency of the light receiving element 73 is high, the louver rotation range is set to 60 to 120 degrees.If the frequency of the light receiving element 74 is high, the louver rotation range is set to 75 degrees. If the frequency of the light receiving element 75 is high, set the louver rotation range to 90 to 15 degrees.
Set and store 35 to 0°. After storing any of the settings 31 to 35 in this way, write m=1 to the E2 ROM, which was set to m=0 at the time of shipment from the factory, and set any of the louver rotation ranges when m=1. Also write memories 31 to 35. If you memorize any of the settings 31 to 35 of the louver rotation range in this way, the louver will be rotated within the set rotation range, and from then on the number of transmissions will be 50 or more. teeth,
In any rotation range of the setting memories 31 to 35, for example,
When the indoor unit 1 is installed in Fig. 2, the louver rotation range is 30~
The louver is driven by setting the 90° setting memory 31. After the number of transmissions is 50, the strongest receiving element is detected again 23 and the frequency numbers are sequentially accumulated, and when the number of transmissions is an integral multiple of 50 (50n) in judgment 22 (YES), each received light that has been added up to that point is The high frequency number a(n) of the elements 71 to 75 is determined, and the setting memories 31 to 35 are set based on it. In this case, the louver angle can be changed in response to changes in the user's permanent location, such as a change in the layout of the room.

Next, the indoor unit 1 may be relocated or turned off due to a power outage, etc.
A case where the result is F will be explained. In this case, as mentioned above, all the statistical values of the frequency numbers stored up to that point are erased, but the information written in the E2 ROM (m=1
Setting memory 3 for any of the louver rotation ranges when m=1
1 to 35) are stored as they are.

First, when control is started and energization is started (YES), the number of transmissions k is set to 1 (20), and the blowing direction and rotation range of the louver are set according to the flowchart described above. Since m=1 is written in the E2 ROM, the direction and rotation range of the louver until it reaches = 50 is NO in judgment 25, and the louver's direction and rotation range are determined based on the setting memories 31 to 35 stored before energization. The direction and rotation range are set. This method is effective when the indoor unit 1 is not relocated, that is, during a power outage. In addition, in the case of relocation, if the indoor unit is changed from the installation position in the right corner to the installation position in the left corner, problems will arise with the information written in the above-mentioned E2 ROM. However, since statistical processing starts again after all frequency count statistics are deleted, after the number of transmissions k reaches 50, a new rotation range adapted to the relocated installation position is set. Therefore, there will be no major inconvenience.

In this way, the position of the indoor unit 1 is recognized from the transmission direction of the remote control 5, and the louver 4 is connected to the light receiving elements 71 to 75.
By pointing the louver in the direction of the element that receives it most frequently and rotating the louver at a predetermined angle when a louver rotation command is received, the air conditioner will not be blown out in unnecessary directions, ensuring comfortable air conditioning. I can do it.

[0019]

[Effects of the Invention] In summary, according to the present invention, there is no wastage in controlling the louver, and wind can be sent only to the areas necessary for air conditioning, and it does not disturb the entire room regardless of the installation position of the indoor unit. Can blow out conditioned air.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a plan view showing a state in which an air conditioner is installed indoors in the present invention.

FIG. 3 is a diagram showing a flowchart of the present invention.

FIG. 4 is a plan view showing a conventional example.

FIG. 5 is a plan view illustrating the flow of the blowing air in FIG. 4;

[Explanation of symbols]

1 Indoor unit 4 Louver 5 Remote control 71 ~ 75 Photo receiving element 10 Statistical processing section 14 Louver angle control section

Claims (1)

[Claims] Claim 1: An indoor unit having a louver that adjusts the horizontal air blowing direction, a drive device that drives the louver in a predetermined angle range in a predetermined direction, and a signal sent to the indoor unit to drive the louver horizontally. In a method for controlling the louver angle of an air conditioner equipped with a remote control, an indoor unit is provided with a plurality of light receiving elements having different light receiving angles, and the frequency of the light receiving elements receiving a transmission signal from the remote controller is statistically calculated. A louver angle control method for an air conditioner, characterized in that the installation position of an indoor unit is determined based on the frequency and the blowing direction of the louver and its rotation range are set.