JPS6210548A - Device for deflecting air flow direction in air conditioner and method of deflecting air flow direction - Google Patents

Abstract

PURPOSE:To improve the comfortableness of a residential space and particularly the comfortableness at the time of starting the space heating operation by driving an upward and downward deflection vane from a state where the blow-off direction is branched into the righthand and lefthand to a state where the blow-off direction is set to the downward, when the blow-off air temperature reaches a predetermined value. CONSTITUTION:Since the blow-off temperature is low immediately after the starting of a space heating operation, a middle motor 3 and a lefthand motor 9a is rotated rightwards, and a righthand motor 9b is rotated leftwards and stopped to set the blow-off air to horizontal brunched flows whereby the blow-off air mixes together only at the upper part of the residential space and a space heating effect is carried out without imparting uncomfortable feeling to a human body. Next, when the blow-off temperature has increased in a certain degree, the middle motor 3 and the righthand motor 9b are rotated leftwards, and the lefthand motor 9a is rotated rightwards and stopped, whereby the blow-off air is concentrated downwardly, the movement of air within the residential space is reduced and the wall surface is warmed, thus shortening the rise-up time. When the blow-off temperature is further increased, a warm air flow is applied directly to the person's body as a downward concentrated blow-off thereby 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. 55-10813) That is, 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. 11 and 12.

In the figure, the front part of the air outlet 101 includes upper and lower 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.
is provided. The upper and lower deflection blades 102 are connected to the bellows 107 via the connecting bar 105a and the lever arm 106a.
connected to a. In addition, left and right deflection blades 103 and 104
are connected to the bellows 107b via the connecting crosspiece 105b1105c and the lever arms 106b and 106c, respectively.

107c. In addition, each bellows 107a,
Heaters 108a and 10 are installed in 107b and 107c, respectively.
8b and 108c are wound.

Reference numeral 109 denotes a microswitch that controls energization of the heaters 108a, 108b, and 108c.

In 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.For example, the cold air during heating can be prevented from directly hitting the human body, but it is possible to control the deflection in one direction (
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, since the downward blowing directly hits the human body, the temperature of the downward blowing must be raised sufficiently, and it takes a long time from the start of operation to the downward blowing, resulting in a delay in the heating start-up.

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, and air that is provided in this indoor unit and that has passed through the indoor heat exchanger. an air outlet that blows out air; a vertical deflection blade that deflects the air blown from the air outlet in the vertical direction; Left and right deflection blades that branch and deflect, and drive means that independently drive the vertical and left deflection blades to deflect,
It has a temperature detection means for detecting the blowout temperature and a set temperature storage means for storing a preset temperature, and the blowout air temperature is set to a predetermined value in a state where the air blown out from the blowout port is branched to the left and right. When the value is reached, the upper and lower deflection blades are driven so that the blowing direction is downward.

Operation With the above configuration, the air conditioner wind deflection device of the present invention has the following effects:
When the blowout temperature or room temperature reaches a certain set temperature,
In order to change from a horizontal branch to a downward branch,
When the air outlet temperature is low during heating operation, the air is mixed only in the upper part of the living space, making it possible to heat the room without feeling cold. Furthermore, when the temperature of the air outlet is high, heating is performed from the periphery of the lower part of the living space, so it is possible to improve the temperature distribution.

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 first balloon,
A vertical deflection blade 1 that deflects the wind direction upward and downward by the coang effect has a shaft 2 in its longitudinal direction, and this shaft 2 is connected to an intermediate motor (stepping motor) 3. Further, the left and right deflection blades that horizontally deflect the blown air by the coering effect are composed of a left deflection blade 5a connected to a connecting bar 4a and a right deflecting blade 5b connected to a connecting bar 4b. And the left deflection blade 5a is
Feather lever arm 6a, rod 7a.

It is connected to the left motor (stepping motor) 9a via the motor lever arm 8a, and the right deflection blade 5b is connected to the right motor (stepping motor) 9b via the blade lever arm 6b, the rod 7b1 and the morke lever arm 8b. are doing. Here, the left deflection blade 5a is this left deflection blade 5.
Slightly curved so that the center is on the left side of a,
The right deflection blade 5b is slightly curved so that its center is on the right side of the right deflection blade 5b. 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 Coing 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 conditions 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 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, it may be further divided into smaller sections, or conversely, it may be connected by a single connecting bar 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 separation effect that is the object of the present invention. If this is not taken into account, it may be a planar shape that is not curved, or it may even have a shape with the round directions 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 front of the indoor unit 10 has an inlet 11 for sucking indoor air, and below the inlet 11 is provided an outlet 12 having upper and lower deflection blades 1 and left and right deflection blades 5a15b. There is. This outlet 120 both sides 13
A and 13b 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 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 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
The air flows in the order of compressor 17, four-way valve 18, indoor heat exchanger 15, capillary tube 19, and outdoor heat exchanger 20, and during cooling operation, compressor 17, four-way valve 18, and outdoor heat exchanger 20.
, the capillary tube 19, and the indoor heat exchanger 15.

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 2o, 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. In order to detect the temperature of the air outlet, it is conceivable to provide a temperature sensor directly at the air outlet 12, but the temperature of each of the above parts,
It can also be detected from pressure and current, and either one can be selected or used in combination.

Further, 21e is a temperature detector that detects the suction temperature,
This is an example of a temperature detection means for detecting room temperature, and the room temperature detection location is not limited to the vicinity of 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 an input value. There is. A thermistor 21 serving as temperature detection means is connected to the input side of this microcomputer via a comparator 25, and the output side of each motor 3.
A middle motor 3, a left motor 9a, and a right motor 9b, which are driving means, are connected via a buffer 26 that supplies pulse output to the motor 9a19b. Here, 27 is a bias resistor, 2
8 is a scan resistance.

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 thermistor 21, and tl·t2 is the set temperature. When this blowing temperature t is lower than the first set temperature t1, 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 to the left 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, it is not known what initial state the upper and lower deflection blades 1, left deflection blade 5a, and right deflection blade 5b are in, but
Each motor 9a.

After driving 9b13, it always rotates 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 prevented from rotating by a load resistance such as a stopper, or the motor is allowed to rotate idly. 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, if the temperature t of the thermistor 21 is higher than the first set temperature t1 and lower than the second set temperature t2, the middle motor 3
is rotated to the left, the left motor 9a is rotated to the right, and the right motor 9b is rotated to the left and then stopped. That is, the blown air becomes a downward branch as shown in FIG. When the flow is already in the horizontal branching state as shown in FIG. 8 before this operation, only the upper and lower deflection blades 1 are substantially deflected.

Next, when the temperature t of the thermistor 21 is higher than the second set temperature t2, 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. 10.

By performing the above operations, the cold air, which is not pleasant for the user's body, is diverted horizontally so that it does not directly hit the human body, and when the temperature of the blast is warmed to a certain extent, it is diverted downward so that it indirectly hits the human body. When the temperature of the air is high enough, there is no problem even if the air is directly sprayed onto the human body, so the air is concentrated downward.

The effect of such an operation at the start of heating operation will be explained. First, the temperature of the air outlet ld immediately after the start of heating operation is low, and it is not preferable for it 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.

Next, when the temperature of the air outlet becomes high to a certain extent, the air outlet is diverted downward, so that the heating effect is performed from the periphery of the living space. That is, even in this case, the air movement UJ in the living space can be reduced and 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.

When the temperature of the airflow becomes even higher, the airflow becomes concentrated downward, allowing warm air to be applied directly to the human body, thereby increasing the heating effect. At this time, the walls are already warmed to some extent, so there will be no cold spots in the button or 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 is not able to reach its full capacity, use downward diversion blowing to intensively cool only the lower part of the living space and improve comfort. I can do it.

Additionally, when the room temperature is high, such as at the start of cooling operation, the entire room is cooled by using a horizontal diversion blower, and after the room temperature has fallen to a certain temperature, the airflow is diverted downward to shorten the compressor operating time. Economically cheap and effective cooling can be performed.

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

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.

Further, when the temperature of the air outlet is high, the air outlet is directed downward, so that the heating is carried out from the lower part of the living space, that is, from the wall surface, thereby making the temperature distribution uniform. In addition, with downward concentrated blowing, the blown air hits the immersed human body, and downward blowing cannot be performed until the blowing temperature becomes sufficiently high. The air can be blown downward, and the heating effect can be started faster.

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 drawings]

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 branch blowing state in the air conditioner, and Figure 9 10 is an explanatory diagram showing the downward divided blowing state, FIG. 10 is an explanatory diagram showing the downward concentrated blowing state, and FIGS. 11 and 12 are a perspective view and a cross-section of the main part of a conventional wind direction deflection device, respectively. It is a diagram. 1... Vertical wind direction deflection blade, 3... Middle motor, 5a... Left deflection blade, 5b...
Right deflection vane, 9a...Right motor, 9b...
...Right motor, 10... Indoor unit, 12.
...Air outlet, 15...Indoor heat exchanger, 1
7...Compressor, 20...Outdoor heat exchanger, 21a121e...Temperature sensor, 21))
...Current detector, 21c, 21d...Pressure detector, 22...Microcomputer, 2
3...Storage unit, 24...Drive signal generation means. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
rgJ 3-Ichishin motor 21--Ichijo-Mr. 22--Microconhi \-Yu 23--Ichimemory sound 7th figure ζ Value 0 Mouth Castle Sorry

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. and drive signal generating means for detecting that the temperature has reached a set temperature stored in a storage means and giving a signal to the driving means to rotate the vertical deflection blade from an upper position downward. Deflection device. (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) The wind direction deflection device for an air conditioner according to claim 1, wherein the temperature detection means for detecting the outlet temperature is the 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 wind direction deflection method for an air conditioner that sometimes changes the blowing direction to a direction branching downward and to the left and right. (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.