JPS62138640A - Method of controlling operation of air conditioner - Google Patents

Abstract

PURPOSE:To improve comfortableness of a residential space and particularly to improve comfortableness at the time of starting space-cooling by operating a horizontal deflection vane and vertical deflection vanes so that the blow-off directions of these vanes are driven downward and concentrated at the center, and further setting a rotational speed variable type compressor at a high speed. CONSTITUTION:Reference character (t) denotes a elapsed time from the operation starting time, and t1 and t2 denote set times. When the passing time (t) is shorter than the first set time t1, a middle motor 3 is rotated to the left hand, a left motor 9a is rotated to the left hand, and a right motor 9b is rotated to the right hand. Then, these motors are stopped. In this case, the rotation of the middle motor 3 to the left hand shows the driving of the vertical deflection vane 1 to a lower position, the rotation of the left motor 9a shows the driving of the left deflection vane 5a to the right side and the rotation of the right motor 9b to the right side shows the driving of the right deflection vane 5b to the left side. That is, blown off air is concentrated downward.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an operation control method for controlling the blowing direction and compressor capacity of an air conditioner.

In most conventional technologies, air volume was controlled manually. In addition, regarding wind direction deflection control, air conditioning 1! equipped with a well-known refrigeration cycle configuration and blower device, etc. [1] In addition, when the air conditioner is operated for cooling in the room as is well known, the angle regulated by the output signal from the control unit is provided, and the wind blown out due to this is According to well-known principles, the wind direction changes continuously within a predetermined range.

Therefore, when the air blows downward, it hits the human body directly, making the person feel cold, while when the air blows upward, uncooled air flows in from the surrounding area, making the person feel hot, making them feel hot. As a result, a stable feeling of cooling cannot be obtained due to the repetition of cold and hot weather and fluctuations in the speed of the cold air hitting the human body, resulting in very poor comfort. Furthermore, even if the air in the living space reaches a predetermined temperature from the cooling source, the walls of the room being cooled are not cooled down due to heat conduction with the outside air and the heat capacity of the walls themselves. For this reason, when the air conditioner is stopped by the temperature regulator, the temperature of the living space increases rapidly due to the wall, worsening comfort, and the temperature regulator returns while the pressure of the well-known refrigeration cycle is not balanced.
There were problems such as the load on the compressor being too high and causing startup failure.

SUMMARY OF THE INVENTION An object of the present invention is to improve the comfort of a living space using an air conditioner, particularly to improve the comfort when cooling is started.

Means for Solving the Problems In order to solve the above problems, the present invention compresses a refrigerant,
A variable rotation speed compressor that constitutes a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger, an indoor unit that includes a blower and the indoor heat exchanger, and an indoor heat exchanger that is provided in this indoor unit. an air outlet that blows out the air that has passed through the air outlet; a vertical deflection blade that vertically deflects the air that has passed through the air outlet; and vertical deflection blades that deflect the air that has passed through the air outlet in the vertical direction; Left and right deflection vanes branching and deflecting in the left and right directions, driving means for reciprocating each of the upper and lower deflection vanes and the left and right deflection vanes, and a rotation speed variable means for changing the rotation speed of the variable rotation speed compressor; elapsed time detection means for detecting elapsed time from a starting point; set elapsed time storage means for storing a preset elapsed time; and when the elapsed time reaches a set value, the rotation speed variable means and the I: jJA
After the elapsed time reaches a set value, the left and right deflection blades and the top and bottom deflection blades are configured so that the blowing direction is downward and concentrated at the center. Further, the variable rotation speed compressor is rotated at a high speed, and when the elapsed time reaches the set value, the left and right deflection vanes and the up and down deflection vanes are rotated so that the blowing direction is horizontal or upward and to the left and right. The variable speed compressor is operated at a low speed.

Effect: In the above means, the air conditioner operation control method of the present invention increases the rotation speed of the variable rotation speed compressor together with downward concentrated blowing before the elapsed time from the start of operation reaches a certain set time. The system achieves high cooling capacity by quickly cooling the inside of the living space and 9, and directing cold air to the human body. In this case, the cooling capacity is reduced by lowering the rotation speed of the variable rotation speed compressor together with the horizontal branch blowout.
It enables stable cooling by reducing the number of times the air conditioner starts and stops, and also equalizes the temperature distribution within the living space, making it possible to achieve the same level of comfort without directly blowing cold air to the human body. .

In addition, since the capacity is controlled by controlling the rotation speed of the variable rotation speed compressor during both of the above-mentioned controls, there is no large movement of cold air in the living space, which is possible with a small air volume, so there is no discomfort caused by the wind. It can be prevented.

Embodiment Hereinafter, a wind direction deflection device for an air conditioner according to an embodiment of the present invention will be explained with reference to the drawings.

FIG. 1 is an exploded perspective view of the main parts of the device.

As shown in the figure, it is slightly curved in the direction of the balloon,
The vertical deflection blade 1, which deflects the wind direction vertically by the coang effect, has a shaft 2 in its longitudinal direction, and this seal r
7 to 2H is connected to the middle motor (stepping motor) 3. The left and right deflection vanes, which are horizontally deflected by the full coring effect of the blown air, are composed of a left deflection vane 5a connected to a coupler 4a and a right deflection vane 5b connected to a coupler 4b. The left polarizing blade 5a is connected to a left motor (stepping motor) via a blade lever arm 6a, a rod 7a, and a motor lever arm 8af.
9a, and the right deflection blade 5b is connected to a right motor (stepping motor) 9b via a blade lever arm 6b, a rod 7b, and a motor lever arm 8b.

Here, the left deflection blade 5a is slightly curved so that its center is on the left side of the left deflection blade 5a, and the right deflection blade 5
b is slightly curved so that its center is on the right side of the right deflection blade 5b. In other words, Suitaguchi 1, which will be described later.
This is to cause the coing phenomenon described in i77 to occur on both sides 13a and 13b of 2, and to deflect the wind direction. Item 11: The coering effect is a well-known technology, so
The explanation will be omitted.

In this embodiment, the middle motor 3 and the left motor 9a.

Although the right motor 9b constitutes the driving means, it is also possible to use only one motor for driving the left and right deflection blades, and furthermore, by using a switching means such as a gear or a flange, it is possible to drive the upper and lower deflection blades 1 and the left and right deflection blades. It is also possible to control the motor with a single motor.

Further, the motor is not limited to a stepping motor, but may be an induction motor or the like. Furthermore, the reason why the left and right deflection vanes are divided into two sizes, the left deflection vane 5a and the right deflection vane 5b, is to facilitate the concentration and division operations that are the object of the present invention, and to enable independent control of the wind direction. In order to precisely control the wind direction, the structure may be further divided into smaller sections, or conversely, the structure may be connected by a single coupling device 4 as shown in FIG. 2 without being divided. In addition, the left deflection blade 5a and the right deflection blade 5bi are curved in shape to not only deflect the wind direction by the Coing effect but also to enhance the concentration and splitting effects that are the object of the present invention, taking into account the above-mentioned Coanda effect. If not, it may have a planar shape that is not curved, or it may have a shape in which the opening direction is reversed.

Next, FIG. 3 shows a perspective view of the indoor unit 10 to which the wind deflection device shown in FIG. 1 is installed. In the figure, the indoor unit 10 has an inlet 11 on the 677th surface for sucking indoor air, and below the inlet 11 is provided an outlet 12 having the upper and lower deflection blades 1 and the left and right deflection blades 5a and 5b. ing. This Suitaguchi 120 both sides 13a, 13bI''i
Each has a curved surface that gradually expands outward in order to deflect the wind direction by the coering effect as described above. Further, the lower surface portion 14 is also a curved surface that gradually expands in order to completely deflect the wind direction by the coering effect as described above.

A side sectional view of this indoor unit 10 is shown in FIG. 4. An indoor heat exchanger 15 is provided at a position facing the suction port 11 , and a blower 16 is provided in a ventilation path from the indoor heat exchanger 15 to the outlet 12 .

Next, the refrigeration cycle of this embodiment is shown in FIG.

In the figure, a variable rotation speed compressor 17, a four-way valve 18,
An indoor heat exchanger 15, a capillary tube 19, and an outdoor heat exchanger 20 are connected in a ring. Here, during the heating operation, the refrigerant flows in the order of the variable speed compressor 17, the four-way valve 18, the indoor heat exchanger 15, the capillary tube 19, and the outdoor heat exchanger 20, and during the cooling operation, the refrigerant flows through the variable speed compressor 17. , the four-way valve 18 , the outdoor heat exchanger 20 , the capillary tube 19 , and the indoor heat exchanger 15 in this order.

Next, the i% circuit diagram of this embodiment is shown in FIG.

The microcoscipulator 22 includes a storage section 23 that stores a preset time opening, a drive signal generation means 24 that generates an appropriate output signal from a comparison between the set end stored in the storage section 23 and an input value. Rotation speed variable signal generation means 2
I have all 9.

The input 11111K of this microcomputer is a timer 21 which is a time detection means and is connected in parallel with the variable speed compressor 17 operated by a phase advance condenser Via pant 726 which provides pulse output to machine 17! Drive means: middle motor 3, left motor 9a, right motor 9b
A variable rotation speed compressor 17, which is rotation speed variable means, is connected.

Here, 31 is a morke coil for a timer.

Now, to explain the relationship between the block diagram shown in FIG. 6 and the circuit shown in FIG. 7, the timer 21 in FIG. 7 corresponds to the time detection means in FIG. The drive signal generation means 24 in FIG. 7 corresponds to the wandering time storage means in FIG. 6, the drive signal generation means 24 in FIG. 7 corresponds to the i-motion signal generation means in FIG. Each motor 3.9a19b in FIG. 7 corresponds to a variable rotation speed signal generating means, and the variable rotation speed compressor 17 in FIG. 7 corresponds to the variable rotation speed means in FIG. 6. corresponds to

Next, the operation of this embodiment is shown in FIG. This figure is a flowchart during cooling operation.

t is the elapsed time from the start of operation of the compressor 17, and tl・
t2 is a set time. When the elapsed time t is shorter than the first set time t, the middle motor a is rotated to the left, the left motor 9a is rotated to the left, and the right motor 9bi is rotated to the right and then stopped. Here, to rotate the middle motor 3 to the left is to move the lower deflection blade 1 to the lower position, to rotate the left motor 9a to the left is to move the left deflection blade 5a to the right, and to rotate the right motor 9bi to the right is to move the left deflection blade 5a to the right. This shows that the blade 5b is driven to the left.

In other words, the blown air is concentrated downward, as shown in FIG. At this time, the upper and lower deflection blades 1, the left deflection blades 5
Although it is not known in what initial state the right deflection vanes a and 5b are, they always rotate to the above positions after each motor 9a, 9b, and %t are driven. That is, when the deflection is already at the same position as the position after driving in the initial state, a load resistance such as a stopper is used to prevent the motor from rotating, or the motor is allowed to rotate idly.

At this time, the variable speed compressor is rotated at high speed and operated at high capacity. and each motor 9a.

9b, after the rotation of the % mouse (necessary KE and rotation ntJ or during rotation), compare the elapsed time and the set time again.

Next, if the elapsed time t is longer than the first set time t1 and shorter than the second set time t2, the middle motor 3 is rotated clockwise, the left motor 9ai is rotated clockwise, and the right motor 9b is rotated counterclockwise and then stopped. do. In other words, the air blown from the variable rotation speed compressor flows in a horizontally divided manner as shown in FIG. At this time, the rotation speed is low and operation is performed at a small capacity.

By carrying out the above operations, during pulldown, the cold air is blown out downwardly so that it directly hits the human body, and the variable speed compressor operates at high capacity due to its high speed rotation, i.e., low blowout temperature. Due to the operation, the airflow is fast, and when the elapsed time reaches the set time, the cold air blows out horizontally to prevent it from directly hitting the human body, and the variable speed compressor rotates at a low speed, which means it operates at a low capacity due to the high blowing temperature. .

The effect of this operation at the time of starting full cooling operation will be explained. First of all, the temperature in the living space is high immediately after the start of cooling operation, and the temperature near the ceiling is especially high compared to the floor.If the air is moved significantly in this state, the temperature at the actual place on the floor will rise, making you feel extremely hot. To achieve this, by concentrating the air blowing downward for a certain period of time until the inside of the living space and the walls are uniformly cooled, cold air with a low blowout temperature directly hits the human body, so that the human body is cooled immediately after the start of operation without being exposed to heat. perform an action. In addition, immediately after the cooling operation starts, the variable speed compressor operates at high speed, so the air conditioner is stopped by the temperature controller in order to quickly cool the living space and walls. Even if the temperature is 1-, the room temperature will not rise rapidly.

Next, after a certain set period of time has elapsed, that is, when the interior of the room and the walls have been uniformly cooled, the variable speed compressor operates at low speed with the horizontal branch blowoff, resulting in a low cooling capacity, and the air conditioner is operated. In addition to providing stable cooling by reducing the number of times the air conditioner stops, it also prevents uneven temperature distribution within the living space due to heat conduction with the outside air, since cold air is constantly applied to the walls for cooling. Comfort can be improved without having to rely on it.

In addition, since the full capacity is controlled by controlling the rotation speed of the variable rotation speed compressor during both types of control, it is possible to use a small air volume, and there is no large movement of cold air in the living space, which prevents discomfort caused by the wind. .

Effects of the Invention As is clear from the description of the above practical examples, the present invention provides a system in which, before the elapsed time from the start of operation of the air conditioner reaches the set time, the variable speed compressor rotates at high speed with concentrated downward blowing. Due to the high cooling capacity operation, the cold air is directly applied to the human body, eliminating discomfort caused by the temperature difference between the ceiling and the floor in the living space. Even if the conditioner is stopped by the temperature controller, the room temperature will not rise rapidly.

Furthermore, when the elapsed time reaches the set time, that is, when the inside of the living space and the walls have been uniformly cooled, the variable speed compressor constantly blows cold air to the low-speed rotation along with the horizontal needle surface, so that the living space is cooled by heat conduction with the outside air. Since uneven temperature distribution within the space can also be prevented, comfort can be improved without directly blowing cold air onto the human body.

Furthermore, since the cooling capacity is controlled by the rotational speed of the variable rotational speed compressor, the capacity can be controlled even with a small air volume, eliminating large movements of cold air within the living space and preventing discomfort caused by haze.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a wind deflection bag "1'" showing one embodiment of the present invention, Fig. 2 is a configuration diagram showing different connection states of left and right deflection blades in a wind deflection device, and Fig. 3 is a configuration diagram showing the same wind deflection bag "1'". Fig. 7 is a block diagram of the control device of the essential parts of the air conditioner equipped with the device; Fig. 7 is an electric circuit diagram of the main parts of the air conditioner;
The figure is a flowchart showing the control details of the air deflection device.
FIG. 9 is an explanatory diagram showing the downward concentrated blow-out condition in the air conditioner, and FIG. 10 is an explanatory diagram showing the horizontal branch blow-out state. 1...Vertical wind direction deflection blade, 3...Medium motor, 5a...Left deflection blade, 5b...Right deflection blade, 9a...Left motor , 9b...Right motor, 10...Indoor unit, 12...
Air outlet, 15... Indoor heat exchanger, 17...
...Variable rotation speed compressor, 20...Outdoor heat exchanger, 21...=Timer, 22...Microcomputer, 23...Storage unit, 24-...Drive Signal generation means, 29...Rotation speed variable signal generation means. Name of agent: Patent attorney Toshio Nakao and 1 other person/-
---Up and down? --Shaft 6 units, 6b---Level arms 7a-, 7b-1 lot 1 Fig. 8 units 8b--lever arms 2nd figure Fig. 9 Ward 10-11 Inner unit I /l

Claims (1)

[Claims] an indoor unit having a variable rotation speed compressor that compresses a refrigerant and constitutes a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger, an air blower and the indoor heat exchanger; an air outlet that blows out air that has passed through the indoor heat exchanger; a vertical deflection blade that vertically deflects the air blown from the air outlet; and a vertical deflection blade that is provided independently on the left and right sides of the air outlet and that Left and right deflection vanes that branch and deflect the blown air in the left and right directions, driving means that reciprocates the upper and lower deflection vanes and the left and right deflection vanes, respectively, and a variable rotation speed that changes the rotation speed of the variable rotation speed compressor. means, elapsed time detection means for detecting elapsed time from the start of operation, set elapsed time storage means for storing a preset elapsed time, and said rotation speed variable means when said elapsed time reaches a set value. and an output means for outputting to the drive means, and before the elapsed time reaches a set value, the blowing direction is downward and concentrated, and the rotation speed of the variable rotation speed compressor is increased, and the rotation speed of the variable rotation speed compressor is increased. An air conditioner operation control method that branches the air blowing direction horizontally or upwardly, left and right, and lowers the rotation speed of a variable rotation speed compressor when the rotation speed reaches a set value.