JPS62276353A - Grill swing angle controller of air conditioner - Google Patents

Abstract

PURPOSE:To improve the comfortableness of a residential space by swinging a grill for changing the air flow direction by a step motor and changing the swinging angle of the grill in compliance with the operational condition. CONSTITUTION:Until the temperature of an indoor heat exchanger detected by a heat exchange temperature detection circuit 16 on the basis of an detection output of an indoor heat exchange temperature sensor 15 becomes 32 deg.C, a drive signal for fixing a grill at a perpendicular position is output to a step motor 8 to direct the grill 4 directly below. When the temperature of the indoor heat exchanger is shifted to a region of 32 deg.C-40 deg.C, the grill 4 is fixed at a downward front position where it is rotated forwardly at an approximately 15 deg.. When the temperature of the indoor exchange changer exceeds 40 deg.C, the grill 4 starts a swinging motion in accordance with a differential value between the room temperature and the set temperature. Respective outputs from a room temperature sensor 5 and a temperature setter 13 are compared with each other at a temperature detection circuit 14, and until a difference between the room temperature and a set temperature Ts reaches -4 deg.C, the grill 4 is swung at an angle of 15 deg.. When the room temperature rises and the differential value exceeds -4 deg.C, the grill 4 is swung at an angle of approximately 20 deg. or approximately 90 deg..

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention provides a grill swing angle for an air conditioner in which the swing angle of the grill is changed according to the operating conditions. Regarding crime devices.

(Prior Art) Conventionally, as shown in FIG. 13, an air conditioner that cools and heats an indoor unit 1 generally has a function of swinging the grille 2 of the indoor unit in order to make the indoor living space more comfortable. What it has is known. That is, the grill 2 is swung so that the temperature of the living space evenly reaches the set value, thereby maintaining the living space comfortably.

In this case, the grill 2 normally swings at a constant angle regardless of the cooling/heating or V-temperature state, whether the cooling/heating has started, or whether the air conditioner is fully operating.

However, since the swing angle of this kind of thing is constant, it depends on the situation of the room, the layout of the room, and individual differences (some people like being hit by the wind and some people don't like it). There were cases where comfort was compromised.

Also, if the living space is sufficiently heated or cooled, it will be comfortable no matter how the grill swings.
Comfort was sometimes compromised when the air conditioner started operating or when the temperature in the room changed.

(Problems to be Solved by the Invention) As described above, when the swing angle of the grille is always constant, there is a problem that comfort is impaired.

Therefore, an object of the present invention is to provide a grill swing angle control-1 for an air conditioner that solves the above problems by changing the swing angle of the grill and improves the comfort of a living space. It is.

[Structure of the Invention] (Means for Solving the Problems) A grill swing angle control device for an air conditioner according to the present invention allows a step motor to swing the grill that changes the wind direction, and also causes the step motor to operate. The swing angle of the grill is changed by outputting drive signals with different swing angles from the control circuit depending on conditions.

(Function) When a drive signal with a large swing angle is output from the control circuit to the step motor according to the operating conditions, the step motor rotates forward to a large angle corresponding to the drive signal, causing the grill to rotate significantly. After that, the grille is reversed to its original angle and the swinging motion is continued to move the grille back to its original position.

When a drive signal with a small swing angle is output to the step motor, the step motor rotates forward to a small angle to slightly rotate the grille, and then reverses to continue the swing operation of moving the grille back to its previous position.

(Example) An example of the present invention will be described below based on FIGS. 1 to 12.

Figure 2 shows the grill swing angle of Ki-ni 1111.
An example of an air conditioner equipped with l device is shown, 3 is an indoor unit, 4 is an indoor unit,
Reference numeral 5 indicates an air outlet grill that is swingably provided on the indoor unit to change the wind direction, and 5 is an air temperature sensor that detects the indoor temperature.

Indoor air is taken into the indoor unit 3, heat exchanged with the indoor heat exchanger 6, and then blown into the room from the grill 4 by the indoor fan 7, as shown by the white arrow in FIG.

This grill 4 is caused to swing by a step motor 8 driven by a drive circuit as shown in FIG. The drive circuit consists of a microcomputer 9, a motor driver 10, and step motor coils 11 and 12.

FIG. 1 shows an example of a control circuit in which the microcomputer 9 described above is divided into functional blocks, and the control circuit includes a detection circuit for detecting operating conditions and a grill position/swing angle determination circuit.

The detection circuit that detects the operating conditions further includes a temperature difference detection circuit 14 that compares the indoor humidity output from the V-lag sensor 5 and the temperature setting device 13 with the set temperature and detects the difference in the indoor temperature with respect to the set temperature. , a heat exchanger temperature detection circuit 16 that detects the temperature of the indoor heat exchanger 6 based on the detection output of the indoor heat exchanger temperature sensor 15, and a remote controller circuit.

This remote controller circuit is composed of a wireless remote controller 17 and a light receiving section 18. For example, as shown in FIG. 4, the wireless remote controller 17 includes two angle buttons 20 and 21 with different set swing angles, and when one angle button 2o is pressed,
When the grill swing angle command signal of 90° is sent to the light receiving unit 18 as an optical signal and the other angle button 21 is pressed,
! The L grill swing angle command signal is sent. 22 is an operation stop button. Note that the setting of the swing angle is not limited to two steps, but may be set in any number of steps. Therefore, the set swing angle is not limited to 15 degrees or 90 degrees, but may be arbitrary, such as 30 degrees or 60 degrees. Further, the remote controller circuit may be wired instead of wireless.

The grill position/swing angle determining circuit 23 receives a cooling/warming signal,
The light receiving section 18 is the output of the temperature difference detection circuit 14, the output of the heat exchanger temperature detection circuit 16, and the remote controller circuit output.
The swing start position and swing angle of the grille 4 are determined in accordance with the swing angle command signal, and a drive signal having these elements as elements is output to the step motor 8. Here, the reason why we say a drive signal having these elements is that there are also other elements such as swing speed.

Now, the operation of the above configuration will be explained separately for heating and cooling.

During heating, the grill operation follows the indoor heat exchanger temperature at its start. The grill position and the A drive signal for fixing the grille to the vertical position is outputted from the swing angle determining circuit 23 to the step motor 8, and the grille 4 is directed directly downward as shown in FIG. 32
When moving to the region (■') of .degree. C. to 40.degree. C., the grille 4 is rotated forward about 15 degrees and fixed at the lower front position, as shown in FIG.

Then, when it enters the region IX where the temperature exceeds 40° C., it starts swinging for the first time according to the difference value between the room temperature and the set temperature. The outputs from the room temperature sensor 5 and the temperature setter 15 are compared by the temperature difference detection circuit 14, and the difference between the room temperature and the set temperature Ts is in the region (■) shown in FIG. 9, that is, until it reaches -4°C. As shown in FIG. 7, the grille 4 is swung at an angle of about 15 degrees. In this case, the vertical position may be set as the center of the swing as shown in the illustrated example, or the vertical position may be set as one end position of the grille 4, and the angle may be changed forward by 15 degrees using this as a standard. When the air temperature rises and the difference value moves to the region (■) exceeding 14℃, Fig. 6 (a) or (b)
) Swing the grill 4 at an angle of about 201Jj or about 90 degrees. This swing angle selection is performed using the remote controller 17.

In other words, if you want to warm the room and want the grill 4 to have a wide swing angle, press the other angle button 21 on the NeuA7less remote controller 17.Then, the remote controller 17
The swing angle command signal from is guided to the grill position/swing angle determining circuit 23 via the light receiving section 18 and is calculated.
As shown in FIG. 6(b), the angle of the grill 4 is swung to about 90 degrees. By doing this, the air in the room is properly agitated and becomes comfortable. If you don't like being hit by the wind, press one of the angle buttons 20 and the
The swing angle can also be narrowed to 20 degrees as shown in a>.

Note that the grill 4 swings at 20 degrees when the remote controller is not operated.

During cooling, as long as the difference between the room temperature and the set temperature aTs is in the range ℃' in Figure 12, that is, until it reaches +2℃, the grill 4 should be turned on as shown in Figure 11 (a >). It is fixed in the horizontal forward upward position B. When it moves to the area where the air temperature decreases and the difference value is within +2℃, as shown in Fig. 11 (a
) or about 2019 or about 901 as shown in (b)
The grille 4 is swung at an angle of 77 degrees. In this case, the angle changes with the horizontal forward upward position as one end position. Swing angle selection is similarly performed by operating the angle button on the remote controller 17.

Note that the cooling/warming signal is also involved in determining the position of one end of the grill during heating and cooling.

The above-described grill operation can be freely performed in forward and reverse directions by using the step motor 98, so that the swing at a fixed angle can be easily controlled, and the speed of the swing can also be changed freely.

In this way, according to the above embodiment, the swing angle of the grill of the air conditioner is changed by detecting the difference between the room temperature and the set temperature, and the temperature of the indoor heat exchanger. Unlike conventional grills in which the grill swings at a fixed angle, comfort is improved when the air conditioner starts operating or when the temperature in the room changes, and it gently agitates the living space without compromising comfort. . In particular, when heating starts, the fixed angle of the grill is changed in two steps, and then the swing angle is changed in two steps, which significantly improves comfort.

In addition, the swing angle of the grill can be changed by operating the remote controller, so comfort can be improved by freely changing the swing angle without compromising comfort due to room conditions, room layout, or individual differences. And you can use wireless remote controller for $
It is easy to control and easy to use.

In addition, in the above embodiment, a case is described in which the swing angle of the grill is optimally controlled by combining all of the operating conditions, such as the difference between the indoor temperature and the set temperature, the indoor heat exchanger temperature, and the command from the wireless remote controller. However, the present invention is not limited to this, and for example, one condition may be used alone to control the grill, or two conditions may be combined to control the grill.

[Effects of the Invention] To summarize, according to the present invention, a step motor that swings the grill is provided, and the step motor is equipped with a control circuit that outputs drive signals with different swing angles depending on operating conditions, thereby achieving the following effects. It has excellent effects such as:

(1) Comfort is improved because the swing angle of the grill is changed according to operating conditions to gently stir the living space.

(2) Since a step motor is used, it can freely rotate forward or reverse, making it easy to control the swing angle.

[Brief explanation of the drawing]

FIG. 1 is a control circuit diagram of a grill swing angle control device for an air conditioner according to an embodiment of the present invention, FIG. 2 is a perspective view of an air conditioner similarly equipped with the grill swing angle control device, and FIG. Figure 2 is a strategic side sectional view showing the structure; Figure 4 is a perspective view of the remote controller shown in Figure 1; Figure 5 is a detailed circuit diagram of the main parts of the control zero circuit shown in Figure 1; Figure 6-1
FIG. 2 is an explanatory diagram of the operation of the grill by the control circuit shown in FIG. 1, and FIG. 13 is an explanatory diagram of a conventional example. In the figure, 3 is an indoor unit, 4 is a grill, 5 is a room temperature sensor, 8 is a step motor, 13 is a temperature setting device, 14 is a temperature difference detection circuit, 15 is an indoor heat exchanger temperature sensor, and 16 is a heat exchanger temperature detection circuit. , 17 is a wireless remote controller, and 23 is a grill position/swing angle determining circuit. The detection circuit for detecting the operating conditions consists of a temperature difference detection circuit 14, a heat exchanger temperature detection circuit 16, a wireless remote controller 17, and its light receiving section 18, and the control 311 circuit includes a detection circuit for detecting the operating conditions and a grill. It is composed of a position/swing angle determining circuit 23. Patent applicant Toshiba Corporation Patent attorney
Nobuo Kinutani Figure 1 Figure 3

Claims (5)

[Claims] (1) In an air conditioner in which an indoor unit is provided with a swingable grill that changes the wind direction, a step motor that swings the grill is provided, and drive signals with different swing angles are output to the step motor depending on operating conditions. A grill swing angle control device for an air conditioner, characterized by comprising a control circuit. (2) The control circuit includes a detection circuit that detects operating conditions, and determines the swing start position and swing angle of the grill according to the detection results of the detection circuit, and sends a drive signal containing these elements to the step motor. 2. The control device according to claim 1, further comprising a grill position/swing angle determining circuit that outputs the output. (3) The control device according to claim 2, wherein the detection circuit is a temperature difference detection circuit that compares the indoor temperature with a set temperature and detects a difference in indoor humidity with respect to the set temperature. . (4) Claim 2 or 3, characterized in that the detection circuit is a heat exchanger temperature detection circuit that detects the humidity of the indoor heat exchanger based on the detection output of an indoor heat exchanger temperature sensor. Control device as described in section. (5) Claims 2 and 3, characterized in that the detection circuit is a remote controller that outputs a swing angle command signal that changes the swing angle in several steps.
The control device according to item 1 or 4.