JP2500207Y2 - Air conditioner - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention controls the air volume of the indoor fan, the drive frequency of the compressor, and the flap angle based on the user-set values,
The present invention relates to an air conditioner that cools, heats, dehumidifies, and blows indoors.

<Prior Art> Conventionally, as an air conditioner of this type, for example, JP-A-63-1
There is one described in Japanese Patent No. 43445. This air conditioner
When the spot switch (direct blowing switch) is turned on, the position of the person inside the room is detected by the person position sensor, and the control means automatically adjusts the angle of the horizontal flap of the outlet in the direction of the person based on this detection signal. By controlling the air conditioner, it is possible to blow out conditioned air that follows the movement of a person, thereby improving operability and comfort.

<Problems to be solved by the invention> However, in the above conventional air conditioner, the control means controls only the angle of the horizontal flap in the direction of the person based on the detection signal of the person position sensor in response to the ON signal of the spot switch. However, if the room temperature is close to the set temperature, the cooling / heating operation ends, or the air volume decreases, or if the room temperature is near the set temperature, you can press the spot switch to perform the cooling / heating operation. Is not done. for that reason,
There is a drawback that a user who needs cooling and heating with a lot of eyes immediately after returning home or taking a bath feels discomfort or feels poor operability.

Therefore, an object of the present invention is to appropriately control not only the horizontal flaps but also the air volume of the indoor fan and the drive frequency of the compressor in response to the spot operation command signal to cool and heat a large number of spots. An object of the present invention is to provide an air conditioner capable of giving a feeling of comfort and good operability to a person in a room during driving.

<Means for Solving the Problems> In order to achieve the above object, the air conditioner of the present invention comprises:
As illustrated in FIG. 1, the air volume of the indoor fan 2 and the compressor 6 are set based on the user setting value set by the user.
In order to control the driving frequency and the angles of the horizontal flap 3 and the vertical flap 4 to air-condition the room in each operation mode of cooling, heating, dehumidifying, and blowing, the command signal S ₀ for spot operation is input. Upon receiving the spot switch 7 and the command signal S ₀ from the spot switch 7, the first
And a first time measuring means 11 for measuring a constant time T ₁ of
A first control for controlling the air flow rate, the drive frequency, and the flap angle based on a preset spot setting value according to each operation mode regardless of the user setting value, only while the timing means 11 is measuring the time. Means 1 and the first timing means 11
When the second clocking means 12 starts timing of the second constant time T ₂ simultaneously with the end of the clocking, the drive frequency is controlled to zero by the user set value only while the second clocking means 12 is clocking. In this case, the second control means 1 for controlling the drive frequency to a predetermined minimum value is provided.

<Operation> The air conditioner of the present invention controls the air volume, the drive frequency, the angle of the horizontal and vertical flaps based on the user-set values, and operates in any of the cooling, heating, dehumidifying, and blowing modes in the room. The air is in harmony. Now, when the spot operation command signal S ₀ is input from the spot switch 7, the first timing means 11 which has received this command signal S ₀ causes the first constant time T _{1 to} pass.
The first control means 1 preliminarily gives the air flow rate, the drive frequency, and the angles of both flaps in advance according to the operation mode regardless of the user set value, while the first time measurement means 11 starts counting the time. Control based on the spot set value. Next, at the same time when the timing of the first timing means 11 is completed, the second timing means
12 starts timing of the second fixed time T ₂ and the second timing means 1
Even when the second control means 1 controls the driving frequency to zero by the user setting value only during the time counting of 2,
By controlling this drive frequency to a predetermined minimum value, at least the minimum cooling or heating operation is performed. Then, when the timing of the second timing means 12 is completed, the operation mode returns from the spot operation to the original operation mode.

<Example> Hereinafter, the present invention will be described in detail with reference to an illustrated example.

FIG. 1 shows a schematic block diagram of a control unit of an air conditioner, which is based on a user set value set by a user via an operation mode switch, a temperature switch, and an air volume switch (not shown). , Indoor fan 2
The indoor microcomputer 1 that controls the air flow rate, the angle between the horizontal flap 3 and the vertical flap 4, and controls the drive frequency of the compressor 6 via the outdoor microcomputer 5, and the spot microcomputer command signal to the indoor microcomputer 1. It is composed of a spot switch 7 for wirelessly inputting S ₀ and a human position sensor 8 for detecting the position of a person in the room and outputting a detection signal S ₁ to the indoor microcomputer 1.

The indoor microcomputer 1 receives a command signal S ₀ from the spot switch 7 and measures a fixed time T ₁ and a first timer 11 and a fixed time T _{2 when} the first timer 11 finishes measuring. A computer program (software) having a second timer 12 for starting
Has a first control means and a second control means.

The first control means relates the air volume of the indoor fan 2, the drive frequency of the compressor 6 and the angle of the horizontal flap 3 to the user set value only while the first timer 11 keeps a constant time T _1. Control based on a spot set value (see FIG. 2) given in advance according to each operation mode, and the angle of the vertical flap 4 is determined based on the detection signal S ₁ from the person position sensor 8 to detect the person in the room. (See FIG. 2).

That is, in the spot operation, as shown in the table of FIG. 2, in the cooling / dehumidifying mode, the air volume is increased to lower the sensible temperature, the driving frequency is maximized to increase the cooling capacity, and the horizontal flap angle is gradually changed. (60 °, see Fig. 4 (a)), while in heating mode, the air volume is reduced to increase the sensible temperature, the drive frequency is maximized to increase the heating capacity, and horizontal flaps are used to prevent warm air from rising. Make the angle steep (80 °, see Fig. 4 (b)).
In the air blowing mode, the air volume is increased, the drive frequency is set to zero to stop the air conditioning, and the horizontal flap angle is set to a gentle gradient (60 °). On the other hand, the angle of the vertical flaps, as shown in FIG.
Based on the detection signal S ₁ of the human position sensor attached to 10,
The wind is controlled to blow toward the right zone R, the central zone C, or the left zone L where the person P is present.

On the other hand, the second control means drives the compressor 6 even if the drive frequency of the compressor 6 is controlled to zero by the user set value only while the second timer 12 keeps the constant time T _2. The frequency is controlled to a predetermined minimum value. Generally, the relationship between the deviation of the temperature detected by the room temperature sensor from the user-set temperature and the driving frequency is as shown in FIG. For example, if the deviation in the figure is −2.5 ° C., the drive frequency becomes 70 Hz when the room temperature rises, and if the deviation becomes −2.5 ° C. (point P _{1 in the} figure) when the room temperature falls, the drive frequency becomes 50 Hz. Further, if the deviation is 0 ° C. (A zone) as in the point P _{2 in} the figure, the drive frequency is 0 Hz. The deviation of the second control means is the fifth.
Even when in the zone A as shown by point P _{2 in} the figure, a certain time T ₂
The driving frequency is the value of B zone, that is, the minimum value 30Hz
Control. The reason for such control is that the room temperature sensor is generally installed near the indoor heat exchanger, so even if the temperature detected by the room temperature sensor reaches the set temperature, the room temperature near the user is cooled more than the set temperature. Time is high,
This is because the temperature is often low during heating, and in such a case, cooling and heating are continued for a certain time T ₂ to perform air conditioning that satisfies the user.

The operation of the control unit of the air conditioner having the above configuration will be described below with reference to the flowcharts of FIGS.

It is assumed that the user presses the spot switch 7 to spot-operate the air conditioner immediately after returning home or after taking a bath.
Then, the indoor microcomputer 1 receives the command signal S ₀ from the spot switch 7 in step S1 of FIG. 6, and in step S2 the air volume of the indoor fan 2, the drive frequency of the compressor 6, and the angle of the horizontal flap 3 are set to Regardless of the user set value, control is performed based on the spot set value given in advance according to the operation mode at that time, and the angle of the vertical flap 4 is controlled based on the detection signal S ₁ from the human position sensor 8 Either the right, center, or left zone R, C with the person P,
Control to face L (see Fig. 3), and at the same time step S
At 3, the first timer 11 starts measuring a fixed time T ₁ . Then, in step S4, it is determined whether or not the time counting of the first timer 11 is finished. If not finished, the above control is continued, while if finished, the above control is stopped and the process proceeds to step S5.

FIG. 7 shows the operation in the first half above in detail.
Steps S11, S13, S17, S19 in FIG. 7 correspond to steps S1, S3, S4, S5 described in FIG. 6, respectively, and step S2 in FIG.
Is shown in steps S12, S14, S15, S16, S18 of FIG. That is, the operation mode (cooling, heating, dehumidification, ventilation) set at that time is determined in step S12 of FIG.
The corresponding spot set value is found by referring to the table of FIG. 2 according to the judged operation mode, and the air volume, the drive frequency, and the horizontal flap angle are set to the spot set amount found in step S14, and steps S15, 16, 18 are performed. To follow the angle of the vertical flap 4 to the right, center,
Control to the left. Then, if it is determined in step S17 that the time counting of the first timer has ended, the process proceeds to step S19, and control other than drive frequency control is returned to normal control by the user set value.

Now, the operation in the latter half of FIG. 6 starts at the same time when the first timer 11 finishes measuring time and at the same time when the second timer 12 starts measuring time at step S5. In step S6, the indoor microcomputer 1 determines whether the driving frequency of the compressor 6 at that time is in the zone A of FIG. 5 (a region where the temperature detected by the room temperature sensor is equal to the user-set temperature and the driving frequency is zero). If it is determined that it is affirmative, the process proceeds to step S7 to control the drive frequency to the minimum of 30 Hz, while if it is determined to be no, the process proceeds to step S9 and the drive frequency is set to the zone at that time as in the normal case. The value is controlled accordingly. Then, the above control is continued until the timing of the second timer 12 is finished, and if it is determined that the timing is finished in step S8, the process proceeds to step S10, the spot operation is finished, and the normal control based on the user set value is returned.

Therefore, the first half operation of setting each control value to the optimum spot set value according to the operation mode using the table of FIG. 2 gives the user a feeling of rapid cooling or a feeling of rapid warming, and the detected temperature of the room temperature sensor. Even if the temperature reaches the set temperature, the latter half of the operation continues cooling and heating for an additional period of time, providing air conditioning that is satisfactory to the user, and makes people in the room more comfortable and comfortable than before when performing spot driving. It is possible to provide various operability.

In the above embodiment, the flap follow-up control is performed by the human position sensor, but this can be omitted.

Further, it goes without saying that the present invention is not limited to the illustrated embodiment.

<Effect of Device> As is clear from the above description, the air conditioner of the present invention receives the command signal of the spot operation from the spot switch, causes the first time measuring means to measure the first fixed time, and measures the time. The air volume of the indoor fan,
The drive frequency of the compressor and the angles of the horizontal and vertical flaps are controlled to a preset spot set value according to each operation mode of cooling, heating, dehumidification, and air blowing, regardless of the user set value, and the first timing means. At the same time as the end of the clocking, the second clocking means is caused to clock a second constant time, and even when the driving frequency becomes zero by the user set value by the second control means only during this clocking, this driving frequency is set to a predetermined minimum value. Since it is controlled in a fine-tuned spot operation, it gives the user the feeling of rapid cooling and rapid warming required for fine-tuned spot operation, and by continuing extra cooling and heating, the user is conditioned to achieve satisfactory air conditioning. The above comfort and good operability can be given to the person in the room.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic block diagram showing a control unit of an embodiment of an air conditioner of the present invention, and FIG. 2 shows spot set values set by an indoor microcomputer shown in FIG. Figure, third
FIG. 4 shows the control operation of the vertical flap by the computer, FIG. 4 shows the control operation of the horizontal flap by the computer, and FIG. 5 shows the relationship between the deviation of the detected temperature from the set temperature and the driving frequency of the compressor. Shown, 6th
7 and 8 are flowcharts showing the control operation of the computer. 1 ... Indoor microcomputer, 2 ... Indoor fan,
3 ... Horizontal flap, 4 ... Vertical flap, 6 ... Compressor, 7 ... Spot switch, 8 ... Human position sensor, 10
…… Air conditioner, S ₀ …… Command signal, S ₁ …… Detection signal.

Continuation of the front page (56) Reference JP 58-123035 (JP, A) JP 2-106647 (JP, A) JP 1-147244 (JP, A) JP 1-181029 (JP , A)

Claims (1)

(57) [Scope of utility model registration request] 1. An air flow rate of an indoor fan (2), a drive frequency of a compressor (6), angles of a horizontal flap (3) and a vertical flap (4) are controlled based on a user set value set by a user. Then, in an air conditioner that air-conditions the room in each operation mode of cooling, heating, dehumidification, and air blowing, a spot switch (7) for inputting a spot operation command signal (S ₀ ) and this spot switch ( 7), and a first timing means (11) for timing a _first constant time (T ₁ ) in response to the command signal (S ₀ ) from the first timing means (1).
First control means for controlling the air flow rate, the drive frequency, and the flap angle based on the spot set value given in advance for each operation mode regardless of the user set value only while 1) is measuring the time. (1) and the first timing means (1
Second timing means (12) for starting timing of a _second constant time (T ₂ ) at the same time when the timing of 1) ends, and the second timing means (1
The second control means (1) for controlling the drive frequency to a predetermined minimum value is provided even when the drive frequency is controlled to zero by the user set value only while the time 2) is clocking. An air conditioner characterized by that.