JPH065134B2 - Air conditioner - Google Patents

Description

The present invention relates to an air volume control device that adjusts the amount of air blown from a blower, and a wind direction control that changes the blowing direction of the wind from the blower between a horizontal direction and a downward direction. And an air conditioner provided with the device.

(Prior Art) A conventional air conditioner of this type is, for example, Jikkou Sho 5
There was a thing as shown in 8-48979 gazette. Fifth
FIG. 1 is an overall vertical cross-sectional view of a conventional air conditioner described in the publication. In the figure, 101 is an indoor unit main body, and this indoor unit main body 101 is provided with an intake port 102 in the upper part and an outlet port 103 in the lower part. A heat exchanger 104 is provided with a filter 105 on the suction port 102 side. 10
6 is a blower.

The outlet 103 has a pair of upper and lower wind direction control plates 10.
7, 107 are provided.

By the way, in this type of air conditioner, it is necessary to change the direction of the air blown from the air outlet 103 of the indoor unit body 101, and in general, the wind direction control plate 107,
The angle of 107 is changed in the vertical direction, and the blowing direction can be manually changed from the horizontal blowing state to the downward blowing state.

(Problems to be solved by the invention) However, in the case of the conventional example having such a configuration, when the wind direction control plates 107, 107 are manually changed, their postures are maintained, and in that state, the wind is always Will be blown out in a certain direction, and the airflow distribution in the room will be constant.For example, during heating, the head side will be hot but the foot side will be cool, while temperature unevenness will be large in the vertical direction. There was a drawback that caused a pleasant sensation.

Also, when the blowing direction of the wind is changed from the horizontal blowing state to the downward blowing state, even if the blowing air volume is the same, the wind blows weakly on the occupants in the horizontal blowing state, but in the downward blowing state, The wind blows strongly when you are near the air conditioner, but weakens when you move away from the air conditioner. The wind that hits the occupants is weak and the comfort is impaired.

The present invention has been made in view of such circumstances, and can perform heating and cooling with less temperature unevenness in the entire room, and further, regardless of the wind direction change and the position of the occupant in the room. First, it aims to improve comfort by giving wind to the occupants with little change in wind speed.

(Means for Solving Problems) In order to achieve such an object, the present invention adjusts the amount of air blown from the blower (2), the heat exchanger (1), and the blower (2). An air volume control device (7), a wind direction control device (8) for changing the blowing direction of the wind from the blower (2) from a horizontal direction to a downward direction, an operation controller main body (9), and the operation controller main body In an air conditioner equipped with a remote control device (12) for transmitting an operation control signal to (9), a wind direction changing means for changing the blowing direction of the wind from the blower (2) by circulating and reciprocating in the vertical direction ( A), a wind speed sensor (13) provided in the remote control device (12) for detecting a wind speed around the remote control device (12) and outputting a wind speed signal to the operation controller body (9), and the wind direction changing means (A). ) Operation, at least half Storage means for storing the detected wind speed by the wind speed sensor in the condensate changes course (13) (1
1), a calculating means (B) for calculating an air volume control state in which the detected wind velocity becomes a set wind velocity based on the detected wind velocity and outputting an air volume control signal, and the air volume control device in response to the air volume control signal. (7) is operated and the air volume control means (C) is provided (see FIG. 2).

(Operation) By the operation of the wind direction changing means (A), the blowing direction of the wind from the blower (2) is cyclically reciprocated in the up-and-down direction to change the wind to flow evenly in the room, and the blowing direction of the wind is changed. When changing from the horizontal direction to the downward direction, or from the downward direction to the horizontal direction, in the initial half-reciprocating change process, for example, the wind speed is detected corresponding to each blowing direction of the wind for each predetermined angle, The detected wind speed is stored in the storage means, and the air volume control state necessary for setting the detected wind speed to the set wind speed is calculated from the relationship between the detected wind speed and the set wind speed, and the blowout direction is changed subsequently. , An air volume control signal corresponding to the air volume control state is output, and the air volume is controlled so that the set wind speed is obtained.

(Example) Hereinafter, the Example of this invention is described in detail based on drawing. FIG. 1 is a vertical sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention. In this figure, 1 is a heat exchanger, 2 is a blower, and 3 is a fan motor for driving the blower 2. Reference numeral 4 denotes an air flow direction control plate, which is integrally and swingably interlocked via a link 5, and the link 5 and the motor 6 are interlockingly connected. Is oscillated to change the blowing direction of the wind between the horizontal direction and the downward direction.

As shown in the block diagram of FIG. 2, the blower 2 is configured to change the number of revolutions thereof to adjust the air volume by the control output from the air volume control device 7, and the wind direction control plate 4 is A control output from the wind direction control device 8 is configured to change the blowing direction of the wind between a horizontal blowing state and a downward blowing state.

Each of the air volume control device 7 and the wind direction control device 8 is
The air conditioner is operated in response to a control signal from the operation controller main body 9 provided in the indoor unit.

The operation controller body 9 is provided with a CPU 10 and a memory (ROM and RAM) 11 as a storage means.

Reference numeral 12 denotes a wireless remote control device, which includes a wind speed sensor 13, a swing switch 14, and other various operation switches (not shown).
A signal from the CPU 2 is input to the CPU 10, and the fan motor 3 and the motor 6 are driven and controlled in response to the signal.

Although not shown, the operation controller main body 9 receives signals from various switches such as an operation switch provided in the indoor unit.

As the wind speed sensor 13, for example, a pair of thermistors are used, one of which directly measures the temperature of a heater driven by a small amount of electric power, and the other thermistor receives the heat from the heater while receiving the wind from the blower. Various types can be adopted, such as being arranged at a position, detecting the degree of cooling by the wind from the blower 2 based on the difference between the output voltages from both thermistors, and detecting the wind speed based on that.

The motor 6 is a stepping motor, and is rotated by an amount corresponding to the number of pulses output from the wind direction control device 8.

The CPU 10 is provided with a wind direction changing means A, which outputs a control signal for circulating and reciprocating the wind direction control plate 4 in the vertical direction to the wind direction control device 8 in response to a start signal from the swing switch 14. The motor 6 is driven and rotated at a predetermined speed by the drive output from the wind direction control device 8.

Further, the CPU 10 is provided with a computing means B, and in accordance with the operation of the wind direction changing means A, in the half-reciprocating process from the initial horizontal direction to the downward direction, the rotation direction of the motor 6 changes the blowing direction of the wind direction control plate 4. Is detected and the signal for each predetermined angle and the wind speed signal output from the wind speed sensor 13 corresponding to each are stored in the memory 11, and the set wind speed and the wind speed signal previously stored in the memory 11 are stored in the memory 11. Based on comparison with the detected wind speed, when the detected wind speed is higher than the set wind speed, the air flow control state required to bring the detected wind speed to the set wind speed, that is, the rotation speed of the fan motor 3 is calculated and the air flow control signal is output. It is supposed to do.

Further, the CPU 10 is provided with an air volume control means C, which outputs a control signal to the air volume control device 7 in response to the air volume control signal from the arithmetic means B, and by the drive output from the air volume control device 7, The fan motor 3 is driven and rotated at a predetermined speed.

Next, the control operation of each of the wind direction changing means A, the calculating means B and the air volume control means C will be described with reference to the flowchart of FIG.

First, it is determined whether or not the swing switch 14 is turned on for the operation of the wind direction changing means A (SI). If the swing switch 14 is turned on, then it is determined whether or not the setting completion flag is 1 (S2). ).

When the swing switch 14 is initially turned on, the setting completion flag is not 1, so the process proceeds to step S3, and the wind direction control plate 4 is set to the horizontal blowing state, that is, 0 ° as an initial setting.

Then, the motor 6 is driven to set the angle D of the wind direction control plate 4 to α
Only the wind speed sensor 13 (S4).
Outputs a wind speed signal from the air conditioner, and detects the wind speed signal to detect the wind speed (S5).

Next, the set wind speed v read from the memory 11 is compared with the detected wind speed V to determine whether the detected wind speed V is higher than the set wind speed v (S6).

If the detected wind speed V is greater than the set wind speed v, step S
7, the fan motor 3 necessary for the arithmetic unit B to change the air volume to be changed, that is, the detected air velocity to the set air velocity.
Is calculated and set, and stored in the memory 11 together with the angle D of the wind direction control plate 4.

On the contrary, if the detected wind speed V is not higher than the set wind speed v,
The process proceeds to step S8, and the air volume at that time (current air volume),
That is, by setting the rotation speed of the fan motor 3 at that time,
It is stored in the memory 11 together with the angle D of the wind direction control plate 4.

After the process of step S7 or step S8, the process proceeds to step S9, and it is determined whether the angle D of the wind direction control plate 4 is 90 °. If it is not 90 °, the process returns to step S4 and until it reaches 90 °. , Step S4 to Step S
Cycle up to 9.

If the angle D of the wind direction control plate 4 becomes 90 °, the wind direction control plate 4
Is displaced by inverting from the vertically downward direction to the horizontal direction, the process proceeds to step S10, and the wind direction control plate 4 at that time is moved.
Based on the angle, the air volume corresponding thereto, that is, the rotation speed of the fan motor 3 is read from the memory 11, the air volume control signal is output to the air volume control means C, and the air volume control means C sends a control signal to the air volume control device 7. At the same time as outputting, a drive output is output from the air volume control device 7, and the fan motor 3 is driven and rotated by the read rotation speed.
After shifting to 11 and setting the setting completion flag to 1, the process returns to step S1.

After the wind direction control plate 4 has been half-reciprocated from the horizontal direction to the downward direction, the setting completion flag becomes 1. Therefore, steps S1, S2, S10 and S11 are repeated thereafter.

As a result, when changing the blowing direction of the wind direction control plate 4 from the initial horizontal direction to the vertically downward direction, FIG. 4 (a)
As shown in, while the rotation speed of the fan motor 3 is constant and the amount of air blown from the blower 2 is constant, the wind speed detected by the wind speed sensor 13 peaks at 45 °, but the blowing direction thereafter. In the change, as shown in FIG. 4 (b), the rotation speed of the fan motor 3 is controlled within a predetermined range centered around 45 °, and the change in the wind speed as a whole can be suppressed. .

If the occupant is in a lower position close to the air conditioner, the wind speed peak in Fig. 4 (a) will be closer to the 90 ° side, and vice versa. In that case, it will be closer to the 0 ° side.

In the above-mentioned embodiment, at the location where the detected wind speed is smaller than the set wind speed, the air volume at that time is maintained. However, according to the present invention, as shown by the dotted line L in FIG. When is smaller than the set wind speed, the amount of air may be increased and the wind speed may be controlled to be constant throughout.

(Effects of the Invention) As described above, according to the present invention, the blowing direction of the wind from the blower (2) is changed by circulating and reciprocating, so that the wind can be satisfactorily distributed throughout the room. , Even if the blowing direction of the wind from the blower (2) is changed to the vertical direction, regardless of the blowing direction,
After half a round trip, it is possible to give the occupants a breeze of the set wind speed with little temperature unevenness in the vertical direction, and it is possible to avoid warming only the head side during heating, improving comfort. I can do it now.

Moreover, since the wind speed sensor (13) detects the wind speed near the remote control device (12) placed near the occupant and maintains the detected wind speed at the set wind speed, even if the wind direction is changed, Wherever the resident is in the room,
The wind can be received at a constant wind speed, and comfort can be improved sufficiently and satisfactorily.

[Brief description of drawings]

FIG. 1 is an overall longitudinal sectional view of an air conditioner according to an embodiment of the present invention, FIG. 2 is a block diagram, FIG. 3 is a flow chart for explaining a control operation, and FIG. FIG. 5 is a whole longitudinal sectional view of a conventional example, which is a graph showing changes in wind speed and air flow. DESCRIPTION OF SYMBOLS 1 ... Heat exchanger, 2 ... Blower, 7 ... Air volume control device, 8 ... Wind direction control device, 9 ... Operation controller main body, 11 ... Memory as memory means, 12 ... Remote operation device, 13 ... Wind speed sensor A ... Wind direction Change means, B ... Calculation means, C ... Air volume control means.

Claims (1)

[Claims] 1. A blower (2), a heat exchanger (1), an air volume control device (7) for adjusting the amount of blown air from the blower (2), and a blowing direction of wind from the blower (2). Wind direction control device for changing the vertical direction from the horizontal direction (8)
An air conditioner including an operation controller main body (9) and a remote control device (12) for transmitting an operation control signal to the operation controller main body (9), the wind from the blower (2) Wind direction changing means (A) for changing the blowing direction by reciprocating in the vertical direction, and the remote operation device (12), which is provided with the wind speed signal to the operation controller body (9) by detecting the wind speed around it. A wind speed sensor (13) for outputting, and a storage means (11) for storing the wind speed detected by the wind speed sensor (13) in the changing process of at least half a reciprocal movement accompanying the operation of the wind direction changing means (A), Based on the detected wind speed, a calculating means (B) for calculating an air volume control state in which the detected wind speed becomes the set wind speed and outputting an air volume control signal, and operating the air volume control device (7) in response to the air volume control signal. Air flow control hand An air conditioner having a stage (C).