JPS6210546A - Device for deflecting air flow direction in air conditioner and method of deflecting air flow - Google Patents

Abstract

PURPOSE:To improve the comfortableness of a residential space and particularly the comfortableness at the time of starting the space heating by concentrating the blow-off direction from a state where it is branched into right and left hands to downward one place, when the detected temperature reaches a predetermined value. CONSTITUTION:When the blow-off temperature immediately after the starting of a space heating operation is low, a middle motor 3 and a lefthand motor 9a is rotated rightwards, and the righthand motor 9b is rotated leftwards and then stopped. Then, the blow-off air assumes horizontal branched flows and blow-off air mixes together only at the upper part of the residential space and a space heating operation can be carried out without affording cold feeling to the person's body. Next, when the blow-off temperature has been increased, the middle motor 3 and the lefthand motor 9a are rotated leftwards, and the righthand motor 9b is rotated rightwards, and then stopped. Then, the blow-off air assumes the downward concentration, and a warm air flow is directly applied to the person's body to enable increasing the space heating effect.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wind direction deflection device and a wind direction deflection method for controlling the blow 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 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. (Japanese Patent Publication No. 55-1081a) That is, the structure Fy of this first conventional example prevents so-called cold draft, and can enhance the heating effect.

Furthermore, in order to improve the comfort in a large living space, there is a device that squeaks 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.

The front surface of the Suita mouth 101 is provided with vertical deflection blades 102 that deflect the blown air in the vertical direction, and left and right deflection blades 103 and 104 that deflect the blown air in the horizontal direction. The upper and lower deflection blades 102 are connected to a bellows 107a via a connecting bar 105a and a lever arm 106a. Also, left and right deflection blades 103 and 1041d, respectively connecting bars 105b and 105c, and lever arm 106b.

108c, and are connected to Veronis 107b and 107c. Also, each bellows 107a.

107b and 107cK are heaters 108a, respectively.

108b and 108c are wound. 109 is heater 1
This is a microswitch that controls the energization of 08a1108b and 108c.

In addition to the above configuration, heaters 108a and 108b.

By energizing 108c, the bellows 107a,
107b and 107c are expanded, and the expansion of the bellows 107b operates the microswitch to operate the heater 108a,
Power supply to 108b and 108c is stopped. As a result, 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;
As the air blows out in the forward direction, the movement of air within the living space becomes large, and the temperature feels lower than the actual room temperature.

In addition, in the second conventional configuration, although the airflow can be deflected in the horizontal direction, the airflow is squeezed regardless of the airflow temperature, so it is not possible to shorten the start-up time during heating operation or perform efficient heating. 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 compresses a refrigerant,
an indoor unit that includes a compressor, a blower, and the indoor heat exchanger that constitute a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger; An outlet that blows out the air that has been
Vertical deflection blades that vertically deflect the air blown out from the air outlet, and left and right deflection blades that are provided independently on the left and right sides of the air outlet and branch and deflect the air blown out from the air outlet in the left and right directions. a blade, a drive means for independently driving the vertical deflection blade and the left and right deflection blades to deflect;
It has a temperature detecting means for detecting the blowing temperature or the room temperature, and a set temperature storing means for storing a preset temperature, and when the air blowing out from the blowing outlet is branched to the left and right, the detected temperature is With the above configuration, the wind direction deflection bag B of the air conditioner of the present invention has the following configuration:
When the air outlet temperature reaches a certain set temperature, the horizontal branch air outlet starts to blow out downwardly, so when the air outlet temperature is low, the air is mixed only in the upper part of the living space, heating the living space without making you feel cold. can be done.

In addition, when the temperature of the air outlet is high, heating is concentrated in one area at the bottom of the living space, so hot air is directly applied to the human body.
The heating effect can be enhanced and comfort can be improved.

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 blade 1 that deflects the wind direction vertically by the Coanda effect has a shaft 2 in its longitudinal direction, and the shaft 2 is connected to a stepping motor 3. The left and right deflection vanes that horizontally deflect the blown air by the Coanda effect are composed of a left deflection vane 5a connected to the connecting bar 4a and a right deflecting vane 5b connected to the connecting bar 4bK. And the left deflection blade 5a is
Blade lever arm 6a, rod 7a, motor L/)
<-The right deflection blade 5b is connected to the left motor (stepping motor) 9a via the arm 8a, and the right deflection blade 5b is connected to the right motor (stepping motor) 9b via the lever arm 6b for the blade, the right motor (stepping motor) 9b via the lever arm 8b for the motor. is connected to. Here, the left deflection blade 5a/i is slightly curved so that its center is on the left side, and the right deflection blade 5b is slightly curved so that its center is on the right side of this right deflection blade 5b. It's curved. 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 9a.

Although the right motor 9b constitutes the driving means, it is also possible to use a single motor for driving the left and right deflection blades, and furthermore, by using a switching means such as a gear or a clutch, the upper and lower deflection blades 1 and the left and right deflection blades can be switched. 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.

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 the temperature detection means and set temperature storage means, which are essential requirements of the present invention. Become. 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 sb, 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. Further, as shown, a single connecting bar 4 may be used for connection.

In addition, 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 concentrated flow splitting effect that is the object of the present invention. If not, it may be a planar shape that is not curved, or even a shape in which the directions of the curved surfaces 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.
At the lower part of this suction port 11, a Suita port 12 having upper and lower deflection blades 1 and left and right deflection blades 5a15b is provided. Both sides 13a and 13b of the Suita mouth 12 are respectively 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 15fc is provided at a position facing the suction port 11, and a blower 16 is provided in the ventilation path from the indoor heat exchanger 15 to the Suita port 12.

The refrigeration cycle of this example is shown in Figure 5, number r. 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,
Four-way valve 18, indoor heat exchanger 15, capillary tube 1
9, the outdoor heat exchanger 20, and during cooling operation, the compressor 17, the four-way valve 18, the outdoor heat exchanger 20. It flows through the capillary tube 19 and the indoor heat exchanger 15 in this order.

Here, 21a to 21d are temperature detection means that indirectly detect the temperature of the air outlet. That is, 21a is a temperature sensor that detects the pipe temperature of the indoor heat exchanger 20, 21b is a current detector that detects the current of the compressor 17, and 21c is the compressor 1.
7 is a pressure detector that detects the pressure of the discharge pipe, and 21d is a pressure detector that detects the pipe pressure of the indoor heat exchanger 15. To detect the temperature of the air outlet, attach a temperature sensor directly to the air outlet 12! 7'' may be considered, but it can also be detected from the temperature, pressure, and current of each of the above parts, and any of these can be selected or used in combination.

Further, 21e is a temperature detector for detecting the suction temperature, which is an example of a temperature detecting means for detecting room temperature, and is not limited to the blade near the suction port.

Next, a circuit diagram of the main part of this embodiment is shown in FIG. The microcomputer 22 includes a storage section 23 that stores a preset temperature, and a drive signal generation means 24 that generates an appropriate output signal from a comparison between the set value stored in the storage section 23 and a long-term value. ing. A boomister 21, which is a temperature detection means, is connected to the input terminal of this microcomputer via a comparator 25, and each mocro 1 is connected to the output side.
The middle motor 3 and the left motor 9a, which are driving means, are connected via a buffer 26 that supplies pulse output to the motors 9a and 9b.

The right motor 9b is connected. Here, 27 is a bias resistor and 28Lfi scan resistor.

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

The blowout temperature t is the temperature detected by the boomister 21, and tl is the set temperature. When this blowout temperature t is lower than the set temperature t1, the middle motor a is rotated clockwise, the left motor 9a is rotated clockwise, and the right motor 9b is rotated.

Rotate counterclockwise to stop. Here, rotating the middle motor 3 means moving 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 to the left. Rotating indicates driving the right deflection blade 5b to the right.

That is, the blown air becomes horizontally divided as shown in FIG. At this time, the upper and lower deflection blades 1, the left deflection blades 5a
Although it is not known what initial state each right deflection blade 5b is in, it is sure to rotate to the above position after each motor 9a19b, 3 is driven. 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, 3 rotates (before or during rotation, as required), the temperature of the thermistor 21 and the set temperature are again compared.

Next, when the temperature t of the boomister 21 is higher than the set temperature t1, the middle motor 3 is rotated to the left, the left motor 9a is rotated to the left, and the right motor 9b is rotated to the right and then stopped. That is, the blown air is concentrated downward, as shown in FIG. 9.

By performing the above operation, the cold air that is not pleasant to the body is diverted horizontally so that it does not directly hit the human body, and when the temperature of the air outlet is high enough, it is concentrated downward because there is no problem even if it blows directly to the human body. It becomes a speech bubble.

The effect 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 horizontal branching 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.

The next time the temperature of the airflow increases, the airflow becomes concentrated downward, allowing warm air to be applied directly to the human body, increasing the heating effect. At this time, since the wall surface has already been warmed to some extent, there is no possibility that a low temperature area will occur in the living space.

In the above-mentioned embodiment, the above-mentioned operations are performed according to the temperature of the air outlet to control the heating operation, but it is also possible to improve the comfort of the living space by performing the above-mentioned operations according to the room temperature.

In other words, for example, during cooling operation, if the room temperature has fallen to a certain temperature, the horizontal branch air outlet is used to uniformly cool the entire living space, and if the room temperature rises above a certain temperature, that is, if the living space is large or there are too many people If the air conditioner is unable to cool the entire room due to heavy traffic and the air conditioner does not have enough capacity to cool the entire room, it is possible to centrally cool only the lower part of the living space and improve comfort by using downward concentrated blowing. .

In addition, when the room temperature is high, such as at the start of cooling operation, the entire room is cooled by using a horizontal branch blower, and after the room temperature has fallen to a certain temperature, the air is concentrated downward, thereby reducing the compressor operating time 1a. It is possible to provide effective cooling at a low and economical cost.

Effects of the Invention As is clear from the description of the above-mentioned embodiments, when the air outlet temperature reaches a certain set temperature, the horizontal branch air outlet changes to a downward concentrated air outlet, so that when the air outlet temperature is low, only the upper part of the living space Performs air mixing action.

In other words, at this time, since it is a horizontal blowout and a branch blowout, it is possible to improve the mixing effect of air only in the upper part of the living space, and it is possible to prevent large air movement in the lower part of the living space, so you can experience I never feel cold.

Furthermore, when the temperature of the air is high, the air is concentrated downward, so the air hits one area at the bottom of the living space, in the center of the room, or directly on the human body, so you can expect a quick heating effect.

Furthermore, even when the above operations are performed due to changes in room temperature, effective heating and cooling 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 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 shunt Suita state in the air conditioner, and Figure 9 10 and 11 are a perspective view and a cross-sectional view of a main part of a conventional wind direction deflection device, respectively. 1... Vertical wind direction 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, 17... Compressor, 20... ...Outdoor heat exchanger, 21a...
...Temperature sensor, 21b...Current detector, 21
c, 21d...pressure detector, 22...
Microcomputer, 23... Storage section, 24
・・・・・・Drive signal generation means. 21st! ! 21----', warm

Claims (10)

[Claims] (1) An indoor unit that includes a compressor that compresses a refrigerant and constitutes a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger, a blower, and the indoor heat exchanger; an air outlet that blows out the 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 for branching and deflecting air 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 the air; and a temperature for detecting the temperature of the air blown from the outlet or the room temperature. The temperature detected by the temperature detection means is the set temperature in the state of the detection means, the set temperature storage means for storing a preset temperature, and the left and right deflection vanes positioned so that the air from the air outlet diverges. It is detected that the set temperature stored in the storage means has been reached, and the upper and lower deflection blades are rotated downward from the upper position, and the left and right deflection blades are rotated so that the air from the air outlet is concentrated in one place. A wind direction deflection device for an air conditioner, comprising drive signal generating means for giving a signal for causing the drive means to move. (2) The wind direction deflection device for an air conditioner according to claim 1, wherein the temperature detection means for detecting the temperature of the air outlet is a temperature detector for detecting the pipe temperature of an indoor heat exchanger. (3) A wind direction deflection device for an air conditioner according to claim 1, wherein the temperature detection means for detecting the temperature of the air outlet is a compressor current or a current detection means including the compressor current. (4) A wind direction deflection device for an air conditioner according to claim 1, wherein the temperature detection means for detecting the outlet temperature is a pressure detection means for detecting the pressure of the compressor discharge pipe or the pipe of the indoor heat exchanger. . (5) Claim 1, wherein the temperature detection means for detecting the blowout temperature is constituted by a temperature detector for detecting the pipe temperature of the indoor heat exchanger, and a compressor current or a current detection means including the compressor current. The described air conditioner wind deflection device. (6) an indoor unit that includes a compressor that compresses a refrigerant and constitutes a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger, a blower and the indoor heat exchanger; an air outlet that blows out the 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 deflect the air left and right in the left and right directions; driving means that reciprocates the upper and lower deflection vanes and the left and right deflection vanes, respectively; An output means is provided for outputting the output to the means, and before the air blowing temperature or room temperature reaches a predetermined value, the air blowing direction is horizontal or upward and branched to the left and right, and the air blowing temperature or room temperature reaches the predetermined value. A method for deflecting wind direction of an air conditioner, wherein the air blowing direction is changed downward and concentrated in one place. (7) The method for deflecting the wind direction of an air conditioner according to claim 6, wherein the temperature detection means for detecting the air temperature is a temperature detector for detecting the pipe temperature of an indoor heat exchanger. (8) The method for deflecting the wind direction of an air conditioner according to claim 6, wherein the temperature detection means for detecting the air temperature is a compressor current or a current detection means including the compressor current. (9) The method for deflecting the wind direction of an air conditioner according to claim 6, wherein the temperature detection means for detecting the air temperature is the pressure detection means for detecting the pressure of the compressor discharge pipe or the pipe of the indoor heat exchanger. . (10) Claim 6, wherein the temperature detection means for detecting the air temperature is constituted by a temperature detector for detecting the pipe temperature of the indoor heat exchanger, and a compressor current or a current detection means including the compressor current. The described air conditioner wind deflection method.