JPH057619B2 - - Google Patents

Description

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

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

For example, there is a device that has blow-off ports in the horizontal and vertical directions, and blows out in the horizontal direction when the blow-out temperature is lower than the set temperature, and blows out in the vertical direction when the blow-out temperature is higher than the set temperature. (Tokuko Showa 55-10813
In other words, the configuration of this first conventional example prevents so-called cold draft, and can enhance the heating effect.

Furthermore, in order to improve comfort in a large living space, there is a device that swings the left and right deflection blades and the top and bottom deflection blades at a constant period. (US Pat. No. 3,257,931) This second conventional example is shown in FIGS. 10 and 11.

In the figure, upper and lower deflection blades 1 are provided on the front surface of the air outlet 101 to deflect the blown air in the vertical direction.
02. Left and right deflection vanes 103 and 104 are provided to deflect the blown air in the horizontal direction. The upper and lower deflection blades 102 are connected to a bellows 107a via a coupling device 105a and a lever arm 106a. In addition, the left and right deflection blades 103 and 104 are
Bellows 107 via connectors 105b, 105c and lever arms 106b, 106c, respectively.
b, 107c. Further, heaters 108a, 108b, 108c are wound around each bellows 107a, 107b, 107c, respectively. 109 are heaters 108a, 108b, 108
This is a micro switch that controls the energization of c.

In the above configuration, heaters 108a, 108
The bellows 107a, 107b, 107c extend by applying electricity to the heaters 108a, 108b, and 108c, and the extension of the bellows 107b operates a micro switch to stop the electricity supply to the heaters 108a, 108b, and 108c. As a result, the bellows 107a,
107b and 107c are cooled and contracted.

By repeating this operation, the effect of fluctuating the blown air can be obtained.

Problems to be Solved by the Invention However, in the first conventional configuration described above, deflection control is only possible in the vertical direction, so for example, cold air during heating can be prevented from directly hitting the human body; direction), the movement of air within the living space increases,
Physically, the temperature feels lower than the actual room temperature. Also, since the downward balloon directly hits the human body,
This has to be done only after the blowing temperature has risen sufficiently, and in particular, it takes time from the start of operation to the downward blowing, which poses a problem in that the start-up of heating is delayed.

In addition, in the second conventional configuration, although it is possible to deflect the airflow in the horizontal direction, the airflow swings regardless of the airflow temperature, so it is not possible to shorten the start-up time or perform efficient heating, especially during heating operation. There was a problem.

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 heating operation.

Means for Solving the Problems In order to solve the above problems, the present invention provides a compressor that compresses a refrigerant and constitutes a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger, and a compressor that compresses a refrigerant and constitutes a refrigeration cycle together with the indoor heat exchanger. an indoor unit having a variable rotation speed blower therein; an air outlet provided in the indoor unit for blowing out air that has passed through the indoor heat exchanger; and a vertical deflector for vertically deflecting the air blown out from the air outlet. blades, left and right deflection blades that are provided independently on the left and right sides of the air outlet and that branch and deflect air blown out from the air outlet in the left and right directions, the variable rotation speed blower, the vertical deflection blades, and the left and right deflection blades; A vertical drive means and a left and right drive means for controlling the drive of the blades, a blower drive means for changing the rotation speed of the variable speed blower, and each of the drive means when the temperature of the air blown from the air outlet reaches a predetermined value. during heating operation, when the temperature of the air being blown is lower than a predetermined temperature, the rotation speed of the variable speed blower is kept low and the air blown out from the outlet is branched to the left and right. When the air blowing temperature or the room temperature reaches a predetermined value, the rotational speed of the variable rotational speed blower is increased, and the blowing direction is downward and branched to the left and right.

Effect By using the above-mentioned means, the method for deflecting the wind direction of an air conditioner of the present invention increases the rotation speed of the variable rotation speed blower and changes the rotation speed from the horizontal branch blower with a small air volume when the air outlet temperature or the room temperature reaches a certain set temperature. Due to the downward diversion of large air volume,
When the air outlet temperature is low during heating operation, the air is mixed only in the upper part of the living space with a small amount of air, making it possible to heat the room without feeling cold. Also, when the blowing temperature is high,
Since heating is performed with a large amount of air from the periphery of the lower part of the living space, it is possible to improve temperature distribution and comfort.

Embodiment Hereinafter, a method for deflecting the wind direction of an air conditioner and a device equipped with the method according to an embodiment of the present invention will be described with reference to the drawings.

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

As shown in the figure, the vertical deflection blade 1, which is slightly curved in the blowing direction and deflects the air vertically by the Coanda effect, has a shaft 2 in its longitudinal direction, and this shaft 2 is connected to a medium motor ( Stepping motor) 3. The left and right deflection blades that horizontally deflect the blown air by the Coanda effect are composed of a left deflection blade 5a connected to a coupler 4a and a right deflection blade 5b connected to a coupler 4b. and left deflection blade 5
a is connected to a left motor (stepping motor) 9a via a blade lever arm 6a, a rod 7a, and a motor lever arm 8a, and a 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 to the left of this left deflection blade 5a, and the right deflection blade 5b is slightly curved so that its center is to the right of this right deflection blade 5b. are doing. That is, this is to cause the aforementioned Coanda phenomenon to occur on both sides 13a and 13b of the air outlet 12, which will be described later, and to deflect the wind direction. Since the Coanda effect is a well-known technique, its explanation will be omitted.

In this embodiment, the middle motor 3 and the left motor 9
a. The right motor 9b constitutes the drive means for the deflection vanes, but it is also possible to use a single motor for driving the left and right deflection vanes, and it is also possible to use a switching means such as gears or clutches to drive the upper and lower deflection vanes. It is also possible to control the left and right deflection vanes with a single motor. Further, the motor is not limited to a stepping motor, but may be an induction motor or the like.

It is also possible to use a shape memory alloy spring that changes depending on the ambient temperature instead of the motor, and in this case, the alloy itself has temperature detection means and set temperature storage means, which are essential requirements of the present invention. It turns out. Also, the left and right deflection blades are the left deflection blades 5.
The reason why the blade is divided into two parts, a and the right deflection blade 5b, is that it is possible to easily perform the flow dividing operation that is the object of the present invention, and also to be able to control the wind direction independently of each other. It may be further divided into smaller parts, or conversely, it may be connected by a single connector 4 as shown in FIG. 2 without being divided. The left deflection blade 5a and the right deflection blade 5b are curved in order to not only deflect the wind direction by the Coanda effect but also to enhance the shunting effect which is the object of the present invention. If you do not take this into account, even if the shape is flat and not curved,
Furthermore, the curved directions may be reversed.

Next, FIG. 3 shows a perspective view of the indoor unit 10 to which the device equipped with the wind direction deflection method shown in FIG. 1 is installed.

In the figure, an indoor unit 10 has a suction port 11 on the front surface for sucking indoor air, and a vertical deflection blade 1 and a left and right deflection blade 5 are provided below the suction port 11.
A blower outlet 12 having a and 5b is provided.
Both side portions 13a and 13b of the air outlet 12 have curved surfaces that gradually expand outward in order to deflect the wind direction by the Coanda effect as described above. 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 1 is installed at a position facing the suction port 11.
5, from this indoor heat exchanger 15 to the air outlet 12
A variable rotation speed blower 16 is provided in the ventilation path leading to the airflow path.

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

In the figure, a 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 compressor 17, the four-way valve 18,
It flows in the order of the indoor heat exchanger 15, the capillary tube 19, and the outdoor heat exchanger 20, and during cooling operation, it flows in the order of the compressor 17, the four-way valve 18, the outdoor heat exchanger 20, the capillary tube 19, and the indoor heat exchanger 15. flows.

Here, 21 is a temperature detector that detects the suction temperature, which is an example of temperature detection means for detecting room temperature, and the room temperature detection location is not limited to the vicinity of the suction.

Next, a circuit diagram of the main part of this embodiment is shown in FIG. Inside the microcomputer 22, there is a storage section 23 that stores a preset temperature;
The driving signal generating means 24 generates an appropriate output signal based on a comparison between the set value stored in the input value and the input value. A thermistor 21, which is a temperature detection means, is connected to the input side of this microcomputer via a comparator 25, and a buffer 26, which supplies pulse output to each of the motors 3, 9a, and 9b, is connected to the output side of the variable speed blower 17. A variable rotation speed blower 16, a middle motor 3, a left motor 9a, and a right motor 9b, which are driving means, are connected through the motor. Here, 27 is a bias resistance, and 28 is a scan resistance.

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

The blowout temperature t is the temperature detected by the thermistor 21, and _t1 is the set temperature. When this blowing temperature t is lower than the set temperature _t1 , the rotation speed variable blower 16 is set to a low rotation speed, the middle motor 3 is rotated clockwise, the left motor 9a is rotated clockwise, and the right motor 9b is rotated counterclockwise, and then stopped. . Here, rotating the middle motor 3 to the right moves the upper and lower deflection blades 1 to the horizontal position (upward position if necessary), and rotating the left motor 9a to the right moves the left deflection blade 5a to the left and the right motor 9b.
Rotating counterclockwise indicates driving the right deflection blade 5b to the right. That is, the blown air becomes horizontally divided with a small amount of air as shown in FIG. At this time, the upper and lower deflection blades 1, the left deflection blades 5
Although it is not known what initial state the right deflection blade 5b is in, each motor 9a, 9
After driving b and 9c, they are always rotated to the above position. That is, when the deflection is already at the same position as the position after driving in the initial state, the motor is not rotated by a load resistance such as a stopper, or the motor is idled. After each motor 9a, 9b, 9c rotates (before or during rotation as required), the thermistor 2
Compare the temperature in step 1 and the set temperature.

Next, when the temperature t of the thermistor 21 is higher than the set temperature _t1 , the rotation speed variable blower 16 is set to a high rotation speed, the middle motor 3 is rotated to the left, and the left motor 9a is rotated to the left.
is rotated clockwise, the right motor 9b is rotated counterclockwise, and then stopped. That is, the blown air is branched downward with a large amount of air, as shown in FIG. 9. If the current is already in a horizontal branch state as shown in Figure 8 before this operation,
Substantially, only the upper and lower deflection blades are deflected.

By performing the above operation, the cold air that is not pleasant for the user's body is diverted horizontally with a small amount of air so that it does not directly hit the human body, and when the temperature of the air outlet is warm, it is distributed with a large amount of air so that it does not directly hit the human body. It becomes a downward diversion blowout.

The effectiveness of such an operation at the start of heating operation will be explained. First, since the temperature of the air outlet immediately after heating operation starts is low, it is not desirable for the air to directly hit the human body. Furthermore, even if the air within the living space does not directly hit the human body, the air within the living space will feel lower than the actual room temperature, so it is preferable that the movement of the air within the living space be small. In other words, by using a horizontally divided air outlet with a small amount of air, the blown air mixes only in the upper part of the living space, providing a heating effect without making the human body feel cold.

Next, when the temperature of the air outlet becomes high, a large amount of air is blown downward, so that the heating effect is performed from the periphery of the living space. That is,
Even in this case, heating can be performed without making the human body feel cold. Furthermore, by heating the wall surface first, the rise time can be shortened and the temperature distribution within the living space can be made uniform.

Effects of the Invention As is clear from the description of the above embodiments, the present invention, when the blowout temperature reaches a certain set temperature,
The rotational speed of the variable speed blower is increased to change from horizontal branching to downward branching, so when the temperature of the airflow is low, a small amount of air is mixed only in the upper part of the living space. In other words, at this time, since it is a horizontal blowout and a branch blowout with a small air volume, it is possible to improve the air mixing effect only in a part of the upper part of the living space, and prevent large air movement in the lower part of the living space. Because you can do this, you won't physically feel the cold.

Furthermore, when the temperature of the air outlet is high, a large amount of air is blown downward, so that the area around the lower part of the living space, that is, the wall surface, is heated, so that the temperature distribution can be quickly uniformized. In addition, if the air volume is concentrated downward, the blown air will directly hit the human body, and the air cannot be blown downward until the temperature of the air outlet reaches a sufficiently high level. In addition, the air can be blown downward when the temperature rises to a certain extent, and the rise of the heating effect can be efficiently accelerated.

Further, even when the above operation is performed depending on changes in room temperature, effective heating can be performed in the same way.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a wind deflection device showing an embodiment of the present invention, Fig. 2 is a configuration diagram showing different connection states of left and right deflection blades in the wind deflection device, and Fig. 3 is a diagram showing the wind deflection device in different connection states. A perspective view of the equipped air conditioner, Fig. 4 is a vertical cross-sectional view of the air conditioner, Fig. 5 is a refrigerant circuit diagram of the air conditioner, and Fig. 6 is an electrical circuit diagram of the main parts of the air conditioner. , FIG. 7 is a flowchart showing the control contents of the air deflection device, FIG. 8 is an explanatory diagram showing the horizontal branch blowing state in the air conditioner, and FIG. 9 is an explanatory diagram showing the downward branch blowing state.
10 and 11 are a perspective view and a cross-sectional view of a main part of a conventional wind deflection device, respectively, and a 12th
The figure is a block diagram showing a control device according to the invention. 1... Vertical wind deflection blade, 3... Middle motor, 5
a...Left deflection blade, 5b...Right deflection blade, 9a...
... Left motor, 9b ... Right motor, 10 ... Indoor unit, 12 ... Air outlet, 15 ... Indoor heat exchanger, 17 ... Compressor, 20 ... Outdoor heat exchanger, 2
DESCRIPTION OF SYMBOLS 1...Temperature sensor, 22...Microcomputer, 23...Storage part, 24...Drive signal generation means.

Claims (1)

[Scope of Claims] 1. A compressor that compresses a refrigerant and constitutes a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger, and an indoor unit that includes the indoor heat exchanger and a variable rotation speed blower therein. , an air outlet provided in the indoor unit that blows out the air that has passed through the indoor heat exchanger; a vertical deflection blade that vertically deflects the air blown from the air outlet; left and right deflection vanes that are provided and branch and deflect the air blown out from the air outlet in the left and right directions, vertical drive means and left and right drive means that reciprocate the vertical and left deflection vanes, respectively, and a variable rotation speed. A blower driving means for changing the rotation speed of the mold blower, and an output means for outputting an output from each of the driving means when the temperature of the air blown from the outlet reaches a predetermined value, and the air blowing temperature is set to the predetermined value during heating operation. When the temperature is lower than that, the rotation speed of the variable rotation speed blower is lowered, and the air blowing direction is horizontal or upward and branched to the left and right, and when the air temperature reaches a predetermined value or higher, the rotation speed is lowered. A wind direction deflection method for an air conditioner that increases the rotational speed of a variable blower and deflects the air in a downward and bifurcated direction to the left and right.