JPS6246155A - Control of direction of blow-off grille for air-conditioning machine - Google Patents

Abstract

PURPOSE:To improve the rise-up characteristics of heating by a method wherein a time, in which the blow-off grille is positioned at the starting position, in shortened than the same upon normal starting or the blow-off grille is positioned at the position of heating or the position of maximum airflow amount. CONSTITUTION:When heating operation is started by utilizing an incoming timer switch, a time for transition from the starting position to heating position is shortened than the transition time upon starting normal heating operation. In this case, the method of shortening the transition time is effected by detecting blow-off temperature by a temperature sensor 11. In case the incoming timer switch is being used and a control selecting switch 15 is being thrown, the blow-off grille 7 is not positioned at the position of heating but is positioned at the position (c) of maximum airflow amount. When a predetermined time has elapsed under a condition that the blow-off grille is positioned at the posi tion of maximum airflow amount, the blow-off grille 7 is pivoted and is positioned at the position (b). According to this method, the rise-up characteristics of room heating may be improved and room temperature may be risen to a predetermined temperature in a short period of time.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for controlling the direction of an air outlet grill of an air conditioner. To provide a direction control method for a blow-off grill, which shortens the time for moving the blow-off grill to a heating or wind-suspended position, or placing it in a starting position, compared to normal starting.

[Technical drawbacks of the invention and its problems] In the so-called wall + 3) type air conditioner in which the indoor room 1 is attached to the upper side of the indoor room, when starting the heating operation, cold air that is unpleasant to the human body is generated. In order to avoid this feeling, the direction (angle) of the blow-off grill is automatically changed for a certain period of time (approximately 10 minutes) after startup, and the hot air blow direction is changed. Are known.

This will be explained based on FIGS. 5 and 6.

Fig. 6 shows an indoor unit 2 attached to an indoor upper side wall 1, in which a heat exchanger 3, a blower 4, a drain tray 5, etc. are housed, and an air outlet 6 is formed in the lower part. Direction (angle) 5 to exit 6! A flat plate-shaped outlet grille 7 which can be freely arranged in J-sections is attached.

The angle control of this blowout grille 6 is not shown.
This is done automatically by order iii from the department.

The outlet grill shown in Figure 6(a) shows the set position of the grill at the time of starting the heating operation, and is positioned almost vertically downward, so that the indoor air is blown out in that direction. . The reason why air is blown vertically downward during heating operation is that immediately after startup, the indoor heat exchanger 3 is not sufficiently heated, so cold air comes out from the air outlet 6. This is to avoid direct contact with the human body and prevent the feeling of cold air.

Then, the indoor heat exchanger 3 is heated for a predetermined period of time (
After about 109 seconds have elapsed, as shown in FIG. 6(b) or 6(C), the blow-off grille 7 is rotated by an appropriate angle to tilt it downward toward the indoor side, and the hot air is directed toward the indoor side. Tilt downward to -C blowout.

Figure 6 (b) shows the case where the outlet grill is placed in the heating position, and Figure 6 (C) shows the case where the outlet grill is placed in the heating position.
The inclination angle of the grille shown in FIG. 6(C) is slightly smaller than that in FIG. 6(h), which shows the case where the grille is located in the large position. The above heating position is suitable for warming the room in a well-balanced manner, while the starting position is mainly used to warm the room without giving the human body a feeling of cold air, and the room temperature distribution is poor. The average temperature is also lower than in the case of heating positive control.

Incidentally, FIG. 6(d) shows the position of the outlet grille during the cooling operation including the time when the cooling operation is started.

The method of controlling the angle of the outlet grille described in E is shown in Fig. 5 with a - symbol.

First, when the operation is started, the distinction between cooling and heating is determined, and in the case of cooling operation, the outlet grille 7 is placed in the cooling position as shown in FIG. 6(d).

In the case of heating operation, the outlet grille 7 is located at the 01 room activation position as shown in FIG. 6(a).

In this state, when a predetermined time (approximately 109 times) has elapsed to sufficiently heat the indoor heat exchanger 3, the outlet grille 7 rotates and the heating body 3 is heated as shown in FIG. 6(b).
], ′.

Incidentally, recently, air conditioners have been developed that employ a so-called turn-on timer switch that starts operation of the air conditioner after an arbitrarily selected fixed period of time has elapsed.

This person timer switch was adopted for the purpose of cooling or heating the indoor atmosphere when a person enters the room.

In an air conditioner that employs such an on timer switch, even if the on timer switch is used to start heating operation, the outlet grille will remain closed for a predetermined period of time as shown in Fig. 6 <a>, as described above. It operated so that it was located at the heating start position shown in FIG. 6(b) and then located at the heating position shown in FIG. 6(b). ' However, when starting the heating operation using the ON timer switch, there are very few cases where there is a person waiting for the start.

Therefore, in this case, even though there is little or no risk of causing a feeling of cold air to the human body, the heating start-up characteristics in p''g of operating the outlet grill from the starting position control as described above. There was a problem in that the room temperature did not rise above °C in a short period of time because of the poor temperature, and the power consumption increased accordingly.

[Object of the Invention] The present invention has been devised in view of the above-mentioned problems and to effectively solve them.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for controlling the direction of an air outlet grill of an air conditioner, which can improve the start-up characteristics of indoor heating when an on-timer switch is used, and can reduce power consumption. be.

[Summary of the Invention] In order to achieve the above object, the present invention aims to reduce the time during which the outlet grill is positioned at the starting bondion when starting the heating operation, or to keep the outlet grill in the starting position from the time of starting. The gist is that the heating or wind ω is located at the maximum position to improve the heating start-up characteristics.

[Embodiment 1] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a flowchart 1-1 for explaining a first embodiment of the method of the present invention, and FIG. 2 is a schematic diagram showing a control circuit for an air conditioner. .

As shown in FIG. 2, the air conditioner control circuit G is mainly composed of an indoor control section 8 and an outdoor control section that exchanges signals with the indoor control section 8.

The indoor υ control section 8 receives signals from a temperature sensor 11 in addition to inputting signals from an operating section 10 equipped with various selection switches. The selection switches of the operation unit 10 include an operation switch 12 for starting and stopping operation, a cooling/heating changeover switch 13 for switching between air conditioning and heating, and an evening/immediate switch 14 for selecting continuous operation, an on timer switch, or an off timer switch. Also provided are an on-timer switch 111 and a direction selection switch 1541 for selecting whether or not to perform the blow-out grill direction control according to the method of the present invention when using the on-timer switch.

Then, the indoor control unit 8 outputs signals to an outlet grill drive circuit 17 that controls the rotation of the grill motor 16 and an indoor motor drive circuit 19 that controls the rotation of the fan motor 18. It is supposed to be done. Moreover, the outdoor-11 camp 9f's etc. are adapted to output a signal toward an inverter circuit 21 that controls the rotation of the combustor smoker 2o.

A first practical FM example of the method of the present invention performed by the control circuit configured as described above will be explained based on FIG.

Operation is started by turning on the operation switch 12 of the operation unit 10, or after an arbitrarily selected fixed period of time has elapsed if the ON timer switch is selectively used. At this time, if cooling is selected by the cooling/heating changeover switch 13, the outlet grille 7 is placed in the cooling position as shown in FIG. 6(d), blows out cold air horizontally, and the operation continues.

Even if heating is selected by the cooling/heating switch switch 'f-13,
When the human timer switch is not selected in the timer switch 14 (No), that is, when the continuous operation/off timer switch (a switch that stops operation after an arbitrarily selected certain period of time) is selected, or If the ON timer switch is selected or used (Y
ES) but the control tl1 selection switch 15 is not turned on (No>), the air outlet grille 7 is placed in the starting position as shown in FIG. It is designed not to give a feeling of cold air.

Then, when a predetermined time (usually about 109 seconds) long enough for the on-campus heat exchanger to heat up has elapsed in this state, the outlet grille 7 is automatically moved to the heating position shown in Fig. 6 (h). It blows warm air in a downward direction toward the room.

Such a control method is similar to the conventional υlff11 method shown in Flowchart 1 of FIG.

On the other hand, the on timer switch is selectively used, and the angle of the Suita grill when the timer is on is $11! :l[l
When the control selection switch 15 is turned on (Y[
ES), the outlet grille 7 is not located in the starting position but is initially in the heating position as shown in FIG. You will end up bursting into laughter. That is, when the ON timer switch is selected and used, the outlet grille 7 is controlled to be in the heating position at the same time as the heating operation starts, and therefore, the indoor heating start-up characteristics are improved compared to the conventional method. It is possible to reduce the dissipation force. Incidentally, when such driving is performed, there are few people present in the room at the time of startup.

This will be explained based on the graph shown in FIG.

FIG. 3 is a graph showing the relationship between room temperature and time according to the conventional method and the method of the present invention, where the dotted line shows the characteristics of the conventional method and the solid line shows the characteristics of the method of the present invention. In addition, in the conventional method, the angle of the outlet grille is changed from 1 to 1 from the time of startup.
It is set as 0 minutes later.

As is clear from the graph, when using the method of the present invention,
The time required to reach the room temperature of 25℃ is approximately 10% longer than with the conventional method.
It is clear that the indoor heating start-up characteristics when using the ON timer switch have been improved.

In the first embodiment, when the heating operation is started using the ON timer switch, the time during which the air outlet grille is in the starting position is set to zero, and the air outlet grille is placed in the heating position from the time of startup. However, the present invention is not limited to this, and the time from the startup position to the heating position may be made shorter than the transition time (approximately 10 minutes) at the time of starting the normal heating operation. At this time, the method of determining the transition time is not to use a time count, but to use a temperature sensor that detects the temperature state of the air blown out from the indoor heat exchanger and the outlet temperature shade. The temperature may be detected, and the temperature for shifting from the startup position to the heating position may be set lower than the normal value, and the temperature may be shifted when the detected value exceeds this set value.

Next, a second embodiment of the method of the present invention will be described based on the flowchart of FIG.

In this second embodiment, the on-timer switch is selectively used;
The control method other than when the control selection switch 15 is turned on is the same as that of the first embodiment, so the explanation will be omitted.

The feature of this second embodiment is that when the on timer switch is used (Y[ES) and the control selection switch 15 is set to 1Ω (YES), the outlet grille 7 is not in the heating position. As shown in Figure 6(C),
! 1fftJ! It is located at a large positive point,
Air is blown downwardly into the campus at a less horizontal angle than in the heating position. , and this wind I! While in the large position for a specified period of time (
After approximately 109 seconds have elapsed, the blow-off grille 7 rotates and is located at the position shown in FIG. 6(b).

When performing heating operation by selectively using the on-timer switch in this way (there is no one in the room at the time of normal startup), the time that the outlet grill is in the starting position is set to the normal IIJ.
! By making the time shorter than the time required for starting the room, or by placing the heating or wind fan at the maximum position from the beginning of startup, the amount of air blown out at the beginning of startup increases, and the temperature of the entire room can be brought to a predetermined temperature in a short time. The temperature can be increased.

Even when using the on timer switch, if there are people in the room when the heating operation starts, by setting the control selection switch 15 to No, the outlet grille will be in the starting position. The device will start running and will not give a feeling of cold air to the human body.

[Effects of the Invention] In summary, according to the method of the present invention, the following 11.21] Song can be achieved.

(1) When using the ON timer switch to start heating operation, the time taken to move from the start position to the heating position can be made shorter than when starting normal heating operation, or the outlet grill can be turned on at the same time as starting the heating operation. Since the heating or wind is positioned at the maximum positive position, the heating start-up characteristics in the room can be improved, and the air temperature can be raised to a predetermined temperature in a shorter time than with conventional methods. .

(2) Therefore, since the entire room can be heated in a well-balanced manner in a short time, power consumption can be suppressed as much as possible.

[Brief explanation of drawings]

Fig. 1 is a flowchart for explaining the first embodiment of the method of the present invention, Fig. 2 is a schematic diagram showing the entire control circuit of an air conditioner, and Fig. 3 is a diagram showing the start of heating operation. ! Graph showing changes in room temperature after 1J, FIG. 4 is a flowchart for explaining the second embodiment of the method of the present invention, FIG. is an explanatory diagram for explaining the direction of the outlet grille. In the figure, 1 is an upper side wall of the room, 2 is an indoor unit, 6 is an air outlet, and 7 is an air outlet grill. Patent applicant Toshiba Corporation Patent attorney
Nobuo Kinuya - Column Horizontal (Kai ξ)

Claims (2)

[Claims] (1) The indoor unit is attached to the upper side wall of the room and has an on-timer switch that starts operation after an arbitrarily selected certain period of time has elapsed, and when heating operation is started, the outlet grill is moved downward in an almost vertical direction. A method for controlling the direction of a blow-off grill of an air conditioner, wherein the blow-off grill is placed in a starting position, and after a predetermined period of time has elapsed, the blow-off grill is tilted downward toward the indoor side to be placed in a heating or maximum air volume position. In the air conditioner, when the heating operation is started with the input timer switch being selectively used, the outlet grille is positioned at the starting position for a time shorter than the predetermined time. How to control the direction of the air outlet grill. (2) When controlling the direction of the air outlet grille, the time during which the air outlet grille is positioned at the starting position is set to zero, and the air outlet grille is positioned at the heating or maximum air volume position from the time of starting. A method for controlling the direction of an air outlet grill of an air conditioner according to claim 1.