JPS6210545A - Device for deflecting air flow direction in air conditioner and method of deflecting air flow direction - Google Patents

Abstract

PURPOSE:To make it possible to shorten the rise-up time during the space heating operation and to carry out effective space heating by setting the blow-off direction to the downward when the blow-off air temperature reaches a predetermined value and switching from weak air flow to strong air flow. CONSTITUTION:When the blow-off temperature is low, a blower motor is set to the weak air flow, and a middle motor 3 and a lefthand motor 9a are rotated rightwards, a righthand motor 9b is rotated leftwards, and then stopped. Then, the blow-off air assumes horizontal branch flows. When the blow-off temperature increases in a certain degree, the middle motor 3 and the righthand motor 9b are rotated leftwards, and the lefthand motor 9a is rotated leftwards, and stopped, the blow-off air assumes downward branched flows, and the movement of air within a residential space is reduced and the wall surface is warmed, whereby the rise-up time can be shortened. When the blow-off temperature becomes high, a blower motor is set to a strong air flow, the middle motor 3, and the lefthand motor 9a are rotated leftwards, and the righthand motor 9b is rotated rightwards and stopped, the flow-off air is set to a downward concentration, and hence a warm air flow is directly applied to the body of a person to enable increasing of 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.

2. Description of the Related Art Until now, two types of devices have been considered as wind deflection devices for air conditioners in order to improve the comfort of living spaces.

For example, it has air outlets in the horizontal direction and the vertical direction.

There is a device that blows out horizontally when the blowing temperature is lower than the set temperature, and blows out vertically when it 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, there are lines on the front surface of the air outlet 101, 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 a bellows 107 via a coupling device 105a and a lever arm 106a.
connected to a. In addition, left and right deflection blades 103 and 104
teeth.

Connectors 105b, 105c, lever arm 10, respectively
Bellows 107b via 6b and 106c.

107c. Also, each bellows 107a.

Heaters 108a are provided in 107b and 107c, respectively.

108b and 108c are wound. 109 is heater 1
This is a microsinch that controls energization of 08a, 108b, and 108c.

In the above configuration, heaters 108a, 108b, 108
By applying current to c, the bellows 107a, 107
b and 107c expand, and the expansion of the bellows 107b operates the microswitch to turn on the heaters 108a and 108.
b, stop supplying electricity to 108c. As a result, bellows 107a, 107b.

107c is cooled and shrinks.

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 (
The movement of air within the living space is large as the air blows out in the forward direction.

Physically, the temperature feels lower than the actual room temperature.

In addition, since the downward blowing air directly hits the human body, the temperature of the blowing air must rise sufficiently.

In particular, there was a problem in that it took a long time from the start of operation to the downward blowing, and the heating start-up was delayed.

In addition, in the second conventional configuration, although the airflow can be deflected in the horizontal direction, it cannot swing regardless of the airflow temperature, so it is particularly difficult to shorten the start-up time during heating operation and perform efficient heating. The problem was that it was not possible.

Further, in both of the above conventional examples, since the amount of air blown is uniformly changed regardless of the direction of air blown, there is room for improvement in terms of comfort.

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 the 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. and driving the vertical deflection blade so that the blowing direction is downward when the blowing air temperature reaches a predetermined value in a state where the air blowing out from the blowing outlet is branched left and right. At the same time, the wind can be switched from weak to strong depending on the temperature of the air outlet.

Operation With the above configuration, the air conditioner wind deflection device of the present invention has the following effects:
When the air outlet temperature reaches a certain set temperature, the horizontal (upward) branch air outlet changes to a downward air outlet, so when the air outlet temperature is low, the air is mixed only in the upper part of the living space, making you feel colder. You can heat the room without having to worry about it. Also, when the blowing temperature is high,
Heating is performed from the periphery of the lower part of the living space. Furthermore, depending on the temperature of the air outlet, not only can the direction of the air outlet be changed, but also the volume of air can be changed from weak to strong.When the temperature of the air outlet is high, the wind is turned to strong air, achieving high heating capacity, improving temperature distribution, and increasing comfort. You can improve your performance.

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 performs vertical wind direction deflection by the Coanda effect has a shaft 2 in its longitudinal direction, and this shaft 2 is connected to an intermediate motor (stepping motor) 3. The left and right deflection vanes that horizontally deflect the blown air by the Coanda effect are composed of a left deflection vane 5a connected to a coupler 4a and a right deflection vane 5b connected to a coupler 4b. And left deflection blade 5ac,
The left motor (stepping motor) 9 is connected via the blade lever arm 6a, rod 7a, and motor lever arm 8a.
a, and the right deflection blade 5b is connected to the blade lever arm 6.
It is connected to a right motor (stepping motor) 9b via a rod 7b and a motor lever arm 8b. Here, the left deflection blade 5a is slightly curved so that its center is on the left side of the left deflection blade 5a, and 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, the air outlet 12 described later
This is to generate the above-mentioned Coanda phenomenon on both sides 13a and 13b 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% is 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, it is possible to switch between the upper and lower deflection blades 1 and the left and right deflection blades. It is also possible to control the 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 conceivable to use a shape-memory alloy spring that changes depending on the ambient temperature for the motor.

In this case, the alloy itself will have temperature detection means and set temperature storage means, which are essential requirements of the present invention.

In addition, the left and right deflection blades are the left deflection blade 5a and the right one bucket direction blade 5b.
The reason why it is divided into two parts is that it is not only possible to easily perform the concentration and separation operations that are the object of the present invention, but also to be able to control the wind direction independently of each other. It may be purchased to be subdivided, or conversely, it may be connected by a single connector 4 as shown in FIG. 2 without being divided.

Furthermore, 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 concentration and splitting effect which is an 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, 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 5a and 5b. . This outlet 120 both sides 13a
, 13b are 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 tab connected to a blower motor lea is provided in the ventilation path from the indoor heat exchanger 15 to the blower outlet 12.

Next, FIG. 5 shows the refrigeration cycle of this embodiment.

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, the refrigerant is 2 during heating operation,
Compressor 17, four-way valve 18. Indoor heat exchanger 15. It flows in the order of capillary cheese 19 and outdoor heat exchanger 20, and during cooling operation, it flows through compressor 17, four-way valve 18, and outdoor heat exchanger 20.
．． Capillary tube 19. The heat flows through 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 pressure generator 17, and 21C is the compressor 17.
21d is a pressure detector that detects the pressure of the discharge pipe of the indoor heat exchanger 15; 21a is a pressure detector that detects the pressure of the pipe of the indoor heat exchanger 15;
is a temperature sensor that detects the suction temperature (room temperature). In order to detect the blowout temperature, it is conceivable to provide a temperature sensor directly at 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. It is possible.

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. It has a drive signal generating means 24 that generates an appropriate output signal from a comparison between the settings stored in the storage section 23 and the input value. A thermistor 21, which is temperature detection means, is connected to the input side of this microcomputer via a comparator 25, and each motor 3.9a, 9b
A blower motor 16a is connected to the middle motor 3, left motor 9a, right motor 9b, which are driving means, via a buffer 26 that supplies pulse output to the blower motor 16a.

Here, 27 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.

The blowout temperature t is the temperature detected by the thermistor 21, t,, t2. t3 is a set temperature. When the blowing temperature t is lower than the first set temperature t1, the blower motor 16a is set to a weak airflow, the middle motor 3 is rotated to the right, the left motor 9a is rotated to the right, and the right motor 9b is rotated to the left and then stopped.

Here, rotating the middle motor 3 clockwise means that the vertical deflection blade 1
in the horizontal position (in the upper position if necessary) and the left motor 9
Rotating a to the right drives the left deflection blade 5a to the left, and rotating the right motor 9b to the left drives the right deflection blade 5b to the right. In other words, the blown air is diverted horizontally (upwards) and into the left direction. The result is as shown in Figure 8.

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 after driving each motor 9a, 9b, and 3, they must be rotated to the above positions. It is something that moves. That is, when the deflection is already at the same position as the position after driving in the initial state, the motor is not allowed to rotate 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 compared again.

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. 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 blower motor 16a is turned on to strong air to increase the heating capacity, the middle motor 3 is rotated to the left, the left motor 9a is rotated to the left, and the left motor 9a is rotated to the right. The motor 9b is rotated clockwise and stopped. In other words, the blown air is concentrated downward and becomes a strong wind.
The result will be as shown in Figure 0.

Here, the blowout temperature t generally decreases slightly by changing the airflow from weak to strong, or from branched to concentrated. The blowout temperature t is the third set temperature t3 (t3
<t2) Operate with downward concentration and strong winds until the wind drops below t2).

By performing the above operation, the cold air that is not pleasant to the body is diverted horizontally with weak wind so that it does not directly hit the human body, and when the temperature of the air is warmed to a certain extent, it is directed downward so that it indirectly hits the human body. The air blows out in separate streams, and when the air temperature is high enough, the air blows out in a downward direction with strong winds so that there is no problem even if the air blows directly onto the human body.

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 a horizontal branch outlet and a weak wind, the blown air mixes only in the upper part of the living space, which can make the human body feel cold.
.

It has a heating effect.

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 movement of air within the living space is reduced and heating can be performed without making the human body feel cold.

Furthermore, by heating the wall surface first, the start-up 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, strong winds cause the airflow to concentrate downward, allowing warm air to be applied directly to the human body, thereby 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.

Effects of the Invention As is clear from the description of the above-described embodiments, the present invention is advantageous in that when the temperature of the air outlet reaches a certain set temperature, the horizontal branch air outlet changes to a downward branch air outlet.

When the blowout temperature is low, the 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 weak wind, 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. , I don't physically feel the 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. Furthermore, if the air is concentrated downward and the wind is strong, the blown air will directly hit the human body.

Downward blowing cannot be performed until the blowing temperature becomes sufficiently high, but since it is a one-minute flow blowout, downward blowing can be performed when the temperature rises to a certain degree, and further heating can be performed by switching from weak wind to strong wind. The onset of effects can be accelerated.

[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 diagram showing different connection states of left and right deflection blades in the wind deflection device, and Fig. 3 is a diagram showing the same wind deflection device. A perspective view of the air conditioner equipped with the device, Fig. 4 is a longitudinal sectional view of the air conditioner, Fig. 5 is a refrigeration cycle diagram of the air conditioner, and Fig. 6 is an electrical diagram of the main parts of the air conditioner. A circuit diagram, 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, FIG. 9 is an explanatory diagram showing the downward branch blowing state, 1st
FIG. 0 is an explanatory diagram showing the downward concentrated blowing state. FIG. 11 and FIG. 12 are a perspective view and a 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 vane, 9a...Left motor, 9b...
...Right motor, 10... Indoor unit, 12.
...Air outlet, 15...Indoor heat exchanger, 1
6a...Blower motor, 16b...Blower, 17...Compressor, 20...Outdoor heat exchanger, 21a, 21e... Temperature sensor, 2
1b...Current detector, 21°/21d...
. . . Pressure detector, 22 . . . Microcomputer, 23 . . . Storage section, 24 . . . Drive signal generation means. Agency's name Live Orthodox Toshio Nakao, 1 Nobu, Ichigashita 1 Shrine J -1 L 3 --- Medium Motode A -Ichiyomo Motata B --- A Ciputer's 1 Hita 2nd Fig. /--1 vertical wind deflection f4 blades lα-11 left deflection 30th! jb-4'A#IA;I*/1
-rlA, Muro 4th figure π---U=
Kuto δ --- Sennai p! ! : History test equipment / 6α --- Tsuyoshi Aya Hikigawa motor / 6b -- Kazuyagi 21tt, 21b ---: LJIN"j21b ---
Ichidemaruaki Pond Figure 6 21
-m-Thermistor 22--Microcontroller-1 z3--Iki l Jiuzai Fig. 7

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. a set temperature storage means for storing a preset temperature; and a set temperature storage means for storing the temperature detected by the temperature detection means in the state of the left and right deflection vanes positioned so that air from the air outlet diverges. a drive signal generating means for detecting that the temperature has reached a preset temperature stored in the controller and supplying a signal to the drive means to rotate the vertical deflection blade from an upper position downward; 1. A wind direction deflection device for an air conditioner, comprising: an air volume changing means for changing the air volume; and a switching signal generating means for applying a switching signal to the air volume switching means of the blower. (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 for deflecting air in left and right directions; a drive means for reciprocating the upper and lower deflection vanes and the left and right deflection vanes; and an output to the drive means when the temperature of the air blown from the outlet reaches a predetermined value. and an air volume changing means that changes the air volume of the blower, and before the air 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 is A method for deflecting wind direction of an air conditioner, which changes the blowing direction downward and branching to the left and right when the airflow reaches a predetermined value, and changes the blowing amount to an increasing direction. (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.