JPS6210540A - Device for deflecting air flow direction in air conditioner and method of deflecting air flow direction - Google Patents

Abstract

PURPOSE:To shorten the rise-up time during the space heating operation and to make it possible to carry out effective space heating by driving an upward and downward deflection vane. When the blow-off air temperature reaches a predetermined value, so that the blow-off direction becomes downward and further is a concentrated direction. CONSTITUTION:When the blow-off temperature detected by a thermistor 21 is less than a first set temperature t1, a middle motor 3 and a lefthand motor 9a are rotated rightwards and a righthand motor 9b is rotated leftwards, and stopped. In this case, when the middle motor 3 is rotated rightwards, an upward and downward deflection vane 1 is driven to a horizontal position. When the lefthand motor 9a is rotated rightwards, a lefthand deflection vane 5a is driven to the left side. When a righthand motor 9b is rotated leftwards, a righthand deflection vane 5b is driven to the right side. Thus, the blow-off air assumes a horizontal brand flow. Next, when the temperature (t) of the thermistor 21 is more than the set tempera ture t1 but less than a second set temperature t2, the middle motor 3 is rotated leftwards, the righthand motor 9b is rotated leftwards, and the lefthand motor 9a is rotated rightwards and stopped. Thus, the blow-off air assumes downward branch flows. Further, when the temperature (t) of the thermistor 21 is more than the set temperature t2, the middle motor 3 and the lefthand motor 9a is rotated leftwards and the righthand motor 9b is rotated right wards, and stopped, Whereupon the blow-off air assumes a downward concentration mode.

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 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. 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. and upper and lower deflection blades 102I/'i
It is connected to a bellows 107a via a connecting crosspiece 105a and a lever arm 106a. In addition, the left and right deflection blades 103
．． 104 is a bellows 107b via connecting bars 105b, 105c and lever arms 106b, 106c, respectively.
.

107c. In addition, each bellows 107a,
107b and 107cK are heaters 108a and 10, 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 expand, and the expansion of the bellows 107b operates the microswitch, causing the heaters 108 &
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.

Kihatsu FIA aims to improve the comfort of living spaces using air conditioners, especially 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 vertically deflects the air blown from the air outlet; and a vertical deflection blade that is provided independently on the left and right sides of the air outlet and branches the air blown out from the air outlet in the left and right directions. left and right deflection blades for deflecting the air, driving means for independently deflecting and driving the upper and lower deflection blades and the left and right deflection blades, temperature detection means for detecting the temperature of the air outlet, and a temperature setting memory for storing a preset temperature. in a state where the air blown out from the outlet is branched left and right, and when the temperature of the blown air reaches a predetermined value, the vertical deflection blade is set so that the blowing direction is downward and the direction of concentration is It is driven so that

Operation With the above configuration, the air conditioner wind deflection device of the present invention has the following effects:
During heating, when the air outlet temperature reaches a certain set temperature, the horizontal branch air outlet changes to a downward branch air outlet, so when the air outlet temperature is low, the air is mixed only in the upper part of the living space, making it feel colder. You can heat the room without feeling it. Furthermore, when the temperature of the air outlet is high, air is blown downward in a branched manner to heat the lower part of the living space, thereby improving the humidity distribution and comfort.

Furthermore, if the blowing temperature becomes higher, the high-temperature air will be blown out in a concentrated manner towards the occupants, providing a warming effect and further improving the feeling of heating.

Even during cooling, low-temperature blown air is blown out to the periphery of the lower part of the living space, so that it does not cause heat shock (discomfort due to the difference between the human body temperature and the cold air) to the occupants. When the temperature of the blown air rises slightly and reaches a temperature that makes the occupant feel cool, the blown air can be concentrated towards the occupant, improving comfort.

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

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

As shown in the figure, it is slightly curved in the direction of the balloon,
The vertical deflection blade 1, which deflects the wind direction upward and downward by the Coanda effect, has a shaft 2 in its longitudinal direction, and this shaft 2If'i is connected to a moke (stepping motor) 3. The left and right deflection vanes which still deflect the blown air in the horizontal direction by the Coanda effect are composed of a left deflection vane 5a connected to a connecting bar 4a and a right deflecting vane 5b connected to a connecting bar 4b. and left deflection blade 5
a is the lever arm 6a for the blade, and the Ron door a.

It is connected to a left motor (stepping motor) 9a via a motor lever arm 8a, and includes a right deflection blade 5bfi, a blade lever arm 6b, and a rod 7b.

It is connected to a right motor (stipping motor) 9b via a motor lever arm 8b. Here, left deflection blade 5
a is slightly curved so that its center is to the left of this left deflection blade 5a, and right deflection blade 5b is slightly curved so that its center is to the right of this right deflection blade 5b. That is, both sides 13a of the air outlet 12, which will be described later,
13b to cause the aforementioned Coanda phenomenon and 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 it is also possible to use a single motor for driving the left and right deflection blades, and it is also possible to use gears, clutches, etc. By using a switching means, 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.

It is also possible to use a shape memory alloy spring that changes depending on the ambient temperature instead of the motor. In this case, the alloy itself can provide the temperature detection means and set temperature storage means, which are essential requirements of the present invention. will have. 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. can be,
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 direction deflection device 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 below the suction port 11 are vertical deflection blades 1 and left and right deflection blades 5a.

A Suita mouth 12 having 5b is provided. Both sides 13a and 13b of the air outlet 120 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 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 in this order.

Here, 21a to 21dI/i are temperature detection means for indirectly detecting the blowout temperature. 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, 21cl' is a pressure sensor that detects the pressure of the discharge pipe of the compressor 17, and 21
d is a pressure detector that detects the pipe pressure of the indoor heat exchanger 15, and 21e is a temperature sensor that detects the intake air temperature or room temperature. In order to detect the blowout temperature, it is conceivable to insert a temperature sensor directly into the blowout port 12, but it can also be detected from the temperature, pressure, and current of each of the above parts, and any one of them can be selected or used in combination. is also possible.

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

In the figure, the microcomputer 22 includes a storage section 23 that stores a preset temperature, and a drive signal generator that generates an appropriate output signal from a comparison between the set value stored in the storage section 23 and an input value. It has means 24.

Comparator 2 is on the input side of this microcomputer.
A thermistor 21, which is a temperature detection means, is connected to the output side through a buffer 126, which supplies pulse output to each motor 3.9a, 9b. A motor 9b is connected. Here, 27Vi is a bias resistor, and 28 is a scan resistor.

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

Blowout temperature ttd is the temperature detected by the thermistork 21, and tl and t2 are the first and second set temperatures. 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 9 is rotated clockwise.
Rotate b counterclockwise and stop. 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, the upper and lower deflection blades 1, the left deflection blades 5a
Although it is not known in what initial state the right deflection blades 5b and 5b are, they always rotate to the above-mentioned positions after each motor 9a19, b, 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 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, when the temperature t of the length mister 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. Before this operation, the 8th
When the flow is in a horizontally divided state as shown in the figure, 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 operation, the cold air that is not pleasant during heating is diverted horizontally so that it does not directly hit the human body, and when the temperature of the air outlet is warmed to a certain extent, it is diverted downward so that it indirectly hits the body. When the temperature of the airflow is high enough, there is no problem even if it directly hits the human body, so the airflow is concentrated downward.

The effect of such an operation at the time of starting the 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. Further, 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 air within the living space be small when considering the human body. 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, if the human body is considered as the center, the movement of air within 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, since the wall surface is already warmed to some extent, there is no possibility that there will be a low temperature area in the living space.

Next, to explain the effect when cooling operation starts, firstly, the temperature of the air outlet is high immediately after the start of cooling operation, and in order to make the occupants feel the cooling sensation quickly, it is necessary to direct the air outlet directly to the occupants by concentrating it downward. Run the air conditioner. As the temperature of the air outlet decreases over time, the temperature difference between the body and the body increases, causing a sense of indecision. Therefore, the air is diverted downward, cooling the living space from the surrounding area, and preventing the direct application of cold air to alleviate heat shock. .

Furthermore, when the temperature of the blown air falls, the air is divided horizontally to prevent the body from feeling uncomfortable due to the cold air, and the entire air in the living space is air-conditioned. This effect allows occupants to experience the feeling of cooling quickly, and then air-conditions the entire living space to improve comfort for the occupants.

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 air mixing action.

That is, 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 it is especially During heating, the user does not feel cold and does not experience any loss of comfort.

During heating operation, when the temperature of the air outlet is high, the air outlet is diverted downward, so that the lower part of the living space is heated, that is, from the wall surface, so that the temperature distribution can be made uniform. In addition, in the case of concentrated downward blowing, the blown air hits the human body directly, and the 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, when the temperature of the blown air increases, the air is concentrated downward to improve the feeling of heating.

In addition, during cooling operation, if the temperature of the air outlet is high, it will be concentrated downward, and the effect is that the occupant will feel a cooling sensation quickly at the start of operation, and furthermore, when the temperature of the air outlet rises after operation, the air temperature will be concentrated downward, and when the temperature of the air outlet increases after operation, a cool breeze will be felt without heat shock. can give.

[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, and FIG. 5 is a refrigeration cycle diagram of the air conditioner.
Fig. 6 is an electric circuit diagram 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
FIG. 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 main part of a conventional wind direction deflection device, respectively. FIG. 1... Vertical wind direction deflection blade, 3... Middle motor, 5a... Left deflection blade, 5b...
Right deflection vane, 9a0.・・・Left motor, 9b・・・・
...Right motor, 10... Indoor unit, 12.
...Air outlet, 15...Indoor heat exchanger, 1
7...Compressor, 20...Outdoor heat exchanger, 21a121e...Temperature sensor, 21b...
...Current detector, 21c, 21d...Pressure detector, 22...Microcomputer, 23
. . . E storage section, 24 . . . - Drive signal generation means. Name of agent: Patent attorney Toshio Nakao and one other person
...Vertical deflection liquid preparation 3...Nakagami-Yu Figure 1 391. Left A flat @ cane σb...j3
41v Shokyo 9a...) L 7-ri 9b... Name motor Fig. 2 1θ... Power booster valve 1 (?... Cab 2 Reach U-F 2θ... Extra-branch focus focus Okina 3 \Mimi ; Mi (Tamimi) Sako-ku ζ ~ Naijo 3...Saishichi-Taku a--Left i-Tata b...Right motor 24..., Tsuki-ku Jukai I Qin Pen Yoibin 27.・Bias Push Anti 2I...Sugo Yan 82 Light Fig. 7 Fig. 8 NIO Fig. 10 111. Raw Meat Uni N Y

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 left and right directions; driving means for independently driving the upper and lower deflection vanes and left and right deflection vanes to deflect the air; and temperature detection means for detecting the temperature of air blown from the air outlet. and a set temperature storage means for storing a preset temperature, and left and right deflection vanes positioned so that air from the air outlet diverges,
When it is detected that the temperature detected by the temperature detection means has reached the set temperature stored in the set temperature storage means, the vertical deflection blades are rotated downward from the upper position, and the left and right blades are rotated from the left and right directions. A wind direction deflection device for an air conditioner, comprising a drive signal generating means for giving a signal for rotating the drive means in a concentrated direction. (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 for deflecting air in the left and right directions, drive means for reciprocating the upper and lower deflection vanes and the left and right deflection vanes, and a predetermined value that detects the temperature of the air blown from the air outlet and sends an output signal to the drive means. There are two types of output means: a first predetermined value and a second predetermined value.
The blowing direction is horizontal or upward and branched to the left and right, and when the blowing temperature is between a first predetermined value and a second predetermined value, the blowing direction is changed to a downward direction and branched to the left and right, and A wind direction deflection method for an air conditioner that changes branched airflow to a concentrated direction when a second predetermined value is reached. (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.