JPS62194156A - Airflow direction deflecting device for air-conditioning machine - Google Patents

Abstract

PURPOSE:To improve the comfortable property of a living space employing an air-conditioning machine, by a method wherein a human body is cooled directly in the initial period of cooling operation upon starting, thereafter, the wall surface of a room or the like are cooled. CONSTITUTION:The title air-conditioning machine maximizes the capacities of a fan 16 and a compressor 17 upon starting the cooling operation of the machine while deflecting a deflecting vane 1 downward and the deflecting vanes 5a, 5b rightward and leftward. In this case, the blow-off air of the machine is concentrated downward and collides against a human body directly. When the time of operation has elapsed to some degree, the capacity of the compressor 17 and the flow amount are reduced and the deflecting vanes 5a, 5b are driven oppositely to distribute the blow-off air downward and cool the circumference of the human body as well as the wall surfaces of a room. When the time of operation has elapsed further, the flow amount and the capacity of the compressor 17 are minimized and the deflecting vane 1 is deflected upward to distribute the blow-off air horizontally whereby comfortable cooling effect may be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wind direction deflection device for controlling the blowing direction of an air conditioner.

BACKGROUND OF THE INVENTION Until now, various devices have been devised as wind deflection devices for air conditioners in order to improve the comfort of living spaces.

For example, there is a device that swings the upper and lower deflection blades at a constant period. (Japanese Patent Publication No. 56-21149) Problems to be Solved by the Invention However, with the above-mentioned conventional configuration, only vertical deflection control is possible and left and right changes are manual, so only a limited space can be cooled. Ta. Another problem was that the temperature distribution in the room deteriorated. Furthermore, since the air swing occurs from the start of operation, there is a problem in that the cold air does not hit the human body when the air conditioner cools down, making it impossible to achieve a sufficient cooling effect.

An object of the present invention is to improve the comfort of a living space using an air conditioner, particularly to improve the comfort at the start of cooling operation.

Means for Solving the Problems An indoor unit includes a variable capacity compressor, a variable air volume blower, and the indoor heat exchanger that constitute a cycle; an air outlet that blows out the air that has passed through the air outlet; a vertical deflection blade that deflects the air that is blown out from the air outlet in the vertical direction; Left and right deflection vanes branching and deflecting in the left and right directions; driving means for independently driving the upper and lower deflection vanes and the left and right deflection vanes to deflect; and variable rotation speeds that respectively control the capacity of the compressor and the air volume of the blower. means, elapsed time detection means for detecting the elapsed time since the time when the air conditioner performed a certain operation, set time storage means for storing a preset time, and air blowing from the air outlet in a downward direction and Detected by the elapsed time detection means when the vertical deflection blades and the left and right deflection blades are concentrated, the capacity of the variable capacity compressor is at its maximum, and the variable air volume blower is at its maximum air volume. When it is detected that the elapsed time has reached the first set time stored in the set time storage means, the vertical deflection blade maintains the state;
The left and right deflection blades are rotated from a concentrated position to a position where they diverge to the left and right, and the rotational speeds of the variable capacity compressor and the variable air volume blower are reduced, and from the start of the set operation, the second When it is detected that the set time of The apparatus is further provided with a signal generating means for applying a signal to the driving means and the rotation speed variable means to minimize the signal.

Operation With the above configuration, the air conditioner wind deflection device of the present invention has the following effects:
When the air temperature is high, such as at the start of cooling operation, the compression function is maximized, the air volume is maximized, and concentrated downwards, so the cold air hits the human body directly and provides a rapid cooling effect. In addition, after a certain period of time after the start of operation, the blowout temperature decreases to a certain extent,
Applying cold air directly to the human body causes discomfort, and reduces the compression function when the temperature is sufficiently low for a living space.
Since the air volume is reduced and the flow is diverted downward, the lower part of the room near the living space can be cooled without being exposed to direct cold air, improving the experience.

When the above operation passes for a predetermined period of time, that is, when the blowout temperature falls, the horizontal branch flow minimizes the compressive force and the air volume, allowing air to flow naturally from the top to the bottom of the room without direct cold air. Similar cooling effects can be obtained, and power consumption can be reduced.

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 essential parts of the device.

As shown in the figure, it is slightly curved in the direction of the balloon,
A vertical deflection root 1 which performs vertical wind direction deflection by the Coanda effect has a shaft 2 in its longitudinal direction, and this shaft 2 is connected to an intermediate motor (stepping motor) 3. The left and right deflection vanes that deflect the blown air in the horizontal direction by the Coanda effect are a left deflection vane 5a connected to the coupler 4a, and a right deflection vane 5 connected to the coupler 4b.
It is composed of b. The left deflecting blade 5a is connected to a left motor (stepping motor) 9a via a blade lever arm 6a, a rod 7a, and a motor lever arm 8a.
The right deflection blade 5b is connected to the blade lever arm 6b.
, the rod 7b, and the right motor (stepping motor>9b) via the motor lever arm Elb.The left deflection blade 5& is slightly curved so that its center is on the left side of the left deflection blade 5a. and right deflection blade 5b
is slightly curved so that its center is on the right side of the right deflection blade 5b. That is, the air outlet 12 described later
This is to cause the above-mentioned Coanda phenomenon to occur on both sides 13a and 13b, and to deflect the wind direction. Since the Coanda effect is a well-known technique, its explanation will be omitted.

In this embodiment, the driving means is composed of the middle motor 3, the left motor 9&, and the right motor 9b, but the left and right deflection blades are
It is also possible to use one driving motor, and furthermore, by using a switching means such as a gear or a clutch, it is also possible to control the upper and lower deflection blades 1 and the left and right deflection blades with a single motor.

Further, the motor is not limited to a stepping motor, but may be an induction motor or the like.

In addition, the reason why the left and right deflection blades are divided into two parts, the left deflection blade 5a and the right deflection blade 5b, is to facilitate the concentration and separation operations that are the object of the present invention, and also to be able to independently control the wind direction. In order to perform more delicate control of 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 5b are curved to deflect the wind direction by the Coanda effect, and also to enhance the concentration and splitting effect that is the object of the present invention, taking into consideration the Coanda effect. If not, it may have a planar shape that is not curved, or it may even have a shape in which the round directions are reversed.

Next, FIG. 3 shows a perspective view of the indoor unit 10 to which the wind direction deflection device shown in FIG. 1 is installed. In the same figure, the front of the indoor unit 10 has a suction port 11 for sucking indoor air.
An air outlet 12 having upper and lower deflecting blades 1 and left and right deflecting blades 5a and 5b is provided at the lower part of this suction opening 11.Both sides 13a and 13b of this air outlet 12 extend outward as described above. It has a curved surface that gradually expands to deflect the wind direction using the Coanda effect. Further, as described above, the lower surface portion 14 is also a curved surface that gradually expands in order to deflect the wind direction by the Coanda effect.

A side sectional view of this indoor unit 10 is shown in FIG. 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, FIG. 5 shows the refrigeration cycle of this embodiment.

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 heating operation, the refrigerant is supplied to 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 in this order, and during cooling operation, the variable speed compressor 17, the four-way valve 18, and the outdoor heat exchanger 20.
, the capillary tube 19 and the indoor heat exchanger 15 in this order.

Here, a circuit diagram of the main part of this embodiment is shown in FIG.

The microcomputer 22 includes a storage unit 23 that stores a preset time, a signal generation unit 24 that generates an appropriate output signal by comparing the set value stored in the storage unit 23 with an input value, and It has a rotation speed variable means 25 that converts the signal generated by the generation means 24 into the rotation speed of the variable capacity compressor 17, and a rotation speed variable means 26 that converts the signal into the rotation speed of the variable air volume blower 16. On the input side of this microcomputer, there is a timer 21 which is a time detection means, and on the output side there is a timer 21 for each motor 3.9a, 9.
b, a variable air volume blower 16, a variable capacity compressor 17, a middle motor 3, a left motor 9a, a right motor 9b, a variable capacity air blower 16, a variable capacity mold compressor 1
7 is connected. 29 is a timer coil.

Now, to explain the relationship between the block diagram shown in FIG. 11 and the circuit shown in FIG. 6, the timer 21 in FIG. 6 corresponds to the time detection means in FIG.
The signal generation means 24 in FIG. 6 corresponds to the signal generation means in FIG. 11, and the rotation speed variable means 25 and 28 in FIG. 6 correspond to the rotation speed variable means in FIG. 11. Each motor 3.9a, 9b in FIG. 6 corresponds to the drive means in FIG. 11.

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

The operating time t is the time detected by the timer 21 and is tl・
t2 is a set time. When this operating time t is less than or equal to the first set time t, the medium motor 3 and the capacity of the variable capacity compressor 17 are maximized.

Here, rotating the middle motor 3 to the left means moving the upper and lower deflection blades 1 to the lower position, rotating the left motor 9a to the left moves the left deflection blade 5a to the right, and rotating the right motor 9b to the right moves the right deflection blade 5b. indicates that it is driven to the left. That is, the blown air is concentrated downward, as shown in FIG. 10. At this time, it is not known in what initial state the upper and lower deflection blades 1, left deflection blades 5, and right deflection blades 5b are, respectively, but after each motor 3.9a, 9b is driven, they are sure to rotate to the above positions. It is something. That is, when the deflection is already at the same position as the position after movement in the initial state, the motor is not rotated by a load resistance such as a stopper, or the motor is idled. And each motor 3. ．． After rotation of 9a and 9b (before or during rotation as necessary), the time of the timer 21 and the set time,
Compare with.

Next, if the time t of the timer 21 has elapsed beyond the first set time and is below the second set time t2, the middle motor a is rotated to the left, the left motor 9& is rotated to the right, and the right motor 9b is rotated to the left and then stopped. do. The capacity of the compressor 17 is reduced to reduce the air volume. That is, the blown air becomes a downward branch, as shown in FIG. Before this operation, when the deflection blades are already concentrated downward in FIG. 10, only the left and right deflection blades 5a and 5b are deflected.

Next, when the timer 21 reaches the second set time 12 or more, the middle motor 3 is rotated clockwise, the left motor 9a is rotated clockwise, and the right motor 9b is rotated counterclockwise and stopped. Minimize the ability of

That is, the blown air becomes horizontally divided as shown in FIG.

By performing the above operation, when the temperature of the air outlet is high, such as at the start of operation, the air volume of the compression function hole is maximized and concentrated downward, as if direct cold air is applied to the human body, and after a certain amount of time has passed, the temperature of the air outlet is cooled down. When the airflow is at its compressor function, it is diverted downward to indirectly cool the human body, and when the operating time has elapsed sufficiently and the air outlet temperature is low enough, the compressor function's minimum airflow is used to cool the entire room. This becomes a horizontal branch of the current.

The effect of such an operation at the start of cooling operation will be explained. First, since the air temperature at the start of cooling operation is high, it will take too long for the air to cool down unless the air is applied directly to the human body, the compression function is high, and the air volume is maximized. Therefore, it is preferable to apply wind directly to the human body. In other words, by directing the airflow from the compression function hole to the maximum downward concentrated blowout, an air-conditioning effect that can cool the human body more quickly is achieved.

Next, when a certain amount of time has passed and the temperature of the air outlet becomes low, the compression function is set to medium rather than high, and the air volume is diverted downward, allowing cooling to be carried out to envelop the lower part of the room near the living space. .

That is, by cooling the area around the human body and cooling the wall surface, the temperature distribution within the living space can be made uniform.

When the operating time further passes and the blowout temperature becomes lower, the air flow of the compressor function is horizontally divided to the minimum, so a sufficient cooling effect can be obtained without directly applying cold air to the human body. In other words, in the early stages, it directly cools the human body,
Since the walls and other surfaces are cooled later, the temperature distribution becomes uniform, and there are no local hot spots in the living space.

Also, power consumption is reduced.

Effects of the Invention As is clear from the description of the above embodiments, when the time from the start of operation is shorter than a certain set time, the air volume of the compression function force hole is at its maximum and concentrated downward, so that the air is not directly applied to the human body. It enhances the feeling of touch and provides a faster falling effect.

Next, when the above-mentioned operation time reaches a certain set time, the airflow is compressed and diverted downward, making the temperature distribution in the living space uniform in order to cool the wall surface without impairing the user's sensation. .

When the operation continues and the second set time is reached, the air flow of the compressor function is minimized and the flow is horizontally divided, making the temperature distribution even more uniform, eliminating local hot spots, and at the same time blowing cold air from above. This provides a comfortable cooling effect. In addition, the compression function and blower air volume decrease,
Power consumption can be reduced.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a wind deflection device showing an embodiment of the present invention, Fig. 2 is a groove diagram showing different connection states of left and right deflection blades in the wind deflection device, and Fig. 3 is a diagram of the wind deflection device. FIG. 4 is a longitudinal sectional view of the air conditioner, FIG. 5 is a refrigerant circuit diagram of the air conditioner, and FIG.
The figure is an electrical circuit diagram of the main parts of the air conditioner, Figure 7 is a flowchart showing the control details of the air deflection device, Figure 8 is an explanatory diagram showing the horizontal branch blowing state in the air conditioner, and Figure 9 10 is an explanatory diagram showing the downward concentrated blowing state, FIG. 10 is an explanatory diagram showing the downward concentrated blowing state, and FIG. 11 is a block diagram of the air conditioner. 1... Vertical wind deflection blade, 3... Middle 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, 16...
... variable air volume blower, 17... variable capacity compressor, 20... outdoor heat exchanger, 21... tar, 22... microcomputer, 23... ...Memory section, 24...
...Signal generation means, 25...Rotation speed variable means. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 8 ′
. ---! Figure 9 /θ Figure 10 /θ Figure 11

Claims (1)

[Claims] an indoor unit having a variable capacity compressor that compresses refrigerant and constitutes a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger, a variable air volume 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 that is blown out from the air outlet; Left and right deflection vanes that branch and deflect the air blown out from the outlet in the left and right directions, drive means that independently drive the vertical deflection vanes and the left and right deflection vanes to deflect, respectively, the capacity of the compressor, and the air volume of the blower. a rotation speed variable means for controlling each of the
elapsed time detection means for detecting the elapsed time from the time when the air conditioner performs a certain operation; set time storage means for storing a preset time; and air blown from the air outlet in a downward direction and concentrated. The elapsed time detected by the elapsed time detection means is stored as a set time in the state of the vertical deflection vanes and the left and right deflection vanes, the capacity of the variable capacity compressor is at its maximum, and the variable air volume blower is at its maximum air volume. When it is detected that the first set time stored in the means has arrived, the vertical deflection blade maintains the state;
The left and right deflection blades are rotated from a concentrated position to a position where they diverge to the left and right, and the rotational speeds of the variable capacity compressor and the variable air volume blower are reduced, and from the start of the set operation, the second When it is detected that the set time of A wind direction deflection device for an air conditioner, comprising a signal generating means for giving a signal that minimizes the rotation speed to the driving means and the rotation speed variable means.