JPS62134442A - Method for deflecting air flow direction of air conditioner - Google Patents

Abstract

PURPOSE:To improve comfortableness of a residential space by reducing the rotational speed of a variable blower and changing a downward concentrated discharge to a downward branched discharge when a discharge temperature becomes equal to a set temperature. CONSTITUTION:When a temperature detected by a thermistor is less than a set temperature, a variable blower is set to a high rotational speed, and motors 3, 9a and 9b are rotated to direct a up-and-down-deflection vane 1 to a downward position, a left-hand deflection vane 5a to the right side, and a right-hand deflection vane 5b to the left side. Thus, discharge air is concentrated downward. When the temperature detected by the thermistor becomes higher than the set temperature, a variable blower is set at a low rotational speed, the motors 8a and 9b are driven, the left-hand deflection vane 5a is directed toward the left side, and the right-hand deflection vane 5b to the right side. Thus, discharge air is branched downward, and when the discharge temperature is increased the warm air flow is prevented from directly striking one's body.

Description

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

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

For example, 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 regular intervals. (US Pat. No. 3,257,931) This conventional example is shown in FIGS. 11 and 12. In the figure, on the front side of the air outlet 101 are vertical deflection blades 102 that deflect the blown air in the vertical direction. Left and right deflection vanes 103 and 104 are provided to deflect the blown air in the horizontal direction. The upper and lower eccentric inner blades 102 are connected to a bellows 107a via a coupling device 105a and a lever arm 106a. Further, the left and right deflection blades 103, 104 are connected to coupling machines 105b, 105c, lever arms 106b, 1, respectively.
Bellows 107b through 06c.

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 expand, and the expansion of the bellows 107b operates the microsinch, which causes the heaters 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, with the conventional configuration described above, although it is possible to blow air in the horizontal direction and inward, the blow-out swings regardless of the temperature and air volume, so it is difficult to shorten the rise time, especially during heating operation. Moreover, there was a problem that efficient heating could not be performed.

An object of the present invention is to improve the comfort of a living space using an air conditioner.

Means for Solving the Problems In order to solve the above problems, the present invention provides a compressor that compresses a refrigerant and constitutes a refrigeration cycle together with an indoor heat exchanger and an outdoor heat exchanger, a variable blower, and the indoor heat exchanger. an indoor unit having an indoor unit therein, an air outlet for blowing out air that has passed through the indoor heat exchanger provided in the indoor unit, and a vertical deflection blade for vertically deflecting air blown out from the air outlet. , left and right deflection blades that are independently provided on the left and right sides of the air outlet and that branch and deflect air blown out from the air outlet in the left and right directions, and a control device that controls driving of the upper and lower deflection blades and the left and right deflection blades. and a driving means for independently driving the vertical deflection blades and the left and right deflection blades, as shown in FIG.
A variable means for changing the wind speed of the variable blower to a strong or weak wind, a temperature detection means for detecting the temperature of the air blown from the air outlet or the room temperature, a set temperature storage means for storing a preset temperature, and a temperature detecting means for detecting the air temperature from the air outlet or the room temperature The wind is blowing downward with strong winds! (In a state where the upper and lower deflection blades and the left and right deflection blades are located in the middle, when the temperature of the blown air reaches a predetermined value, the left and right deflection blades are used together with a variable means that changes the variable blower from strong wind to weak wind This is a wind direction deflection method for an air conditioner that outputs an output to a driving means so as to rotate a deflection blade from a direction of concentration to a direction of separation.

Effect: When the air outlet temperature or the room temperature reaches a certain set temperature by the above means, the downward branching blowing is weaker than the downward concentrated blowing strong wind, so during heating operation, the ventilation resistance is at its lowest, so the maximum capacity is achieved. This improves the rising characteristics, and when the air outlet temperature or room temperature is high, heating is performed from the periphery of the living space, thereby improving temperature distribution and 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, the vertical deflection blade 1, which is slightly curved in the blowing direction and deflects the wind direction vertically by the Coanda effect, has a shaft 2 in its longitudinal direction, and this shaft 2 is connected to the intermediate motor 3 (stepping motor 3). motor). 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 coupling 1i4a and a right deflection vane 5b coupled to the coupling machine 4b. The left deflection blade 5a includes a blade lever arm 5a, a rod 7a, and a motor lever arm 8.
It is connected to the left motor 9b (stepping motor) via b. Here, the left deflection blade 5a is this left deflection blade 5c.
The right deflection blade 5b is slightly curved so as to have its center 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 Coanda effect is a well-known technique, the explanation thereof will be omitted.

In this embodiment, the middle motor 3. 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 a 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, there are two left and right deflection blades, a left deflection blade 5a and a right deflection blade 5b.
The reason for dividing the air flow is that it is possible to easily carry out the concentration and separation operations that are the object of the present invention, and also to control the wind direction independently of each other.In order to perform even more delicate control of the wind direction, the air flow can be further divided into smaller parts. It may be a configuration, or conversely, the second
They may be connected by a single coupler 4 as shown in the figure. Also, the reason why the left deflection blade 5a and the right deflection blade 5b are curved is as follows.
In addition to deflecting the wind direction by the Coanda effect, the shape is to enhance the concentration and separation effect that is the objective of the present invention, and if the Coanda effect is not taken into account, it may be a planar shape that is not curved. Furthermore, the dog phase directions may be corrected.

Next, FIG. 4 shows a perspective view of the indoor unit 10 to which the wind direction deflection device shown in FIG. 1 is attached. In the same figure, the front of the indoor unit 10 has a suction port 11 for sucking indoor air.
An air outlet 12 having upper and lower deflection blades 1 and left and right deflection blades 5a and sb is provided below the suction port 11. Both side portions 13a and 13b of the air outlet 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 15 is provided at a position facing the suction port 11, and a variable blower 16 is provided in the ventilation path from the indoor heat exchanger 15 to the outlet 12.

Next, FIG. 6 shows the refrigeration cycle of this embodiment.

In the figure, compressor 17. Four-way valve 18. Indoor heat exchanger 1
5. Capillary tube 19. Outdoor heat exchangers 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 19. It flows in the order of outdoor heat exchanger 20, and during cooling operation, it flows through compressor 17, four-way valve 18. 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. A temperature sensor 21a detects the pipe temperature of the indoor heat exchanger 20, a current detector 21b detects the current of the compressor 17, and a pressure detector 21C detects the pressure of the discharge pipe of the compressor 17. It is. 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.

Further, 21e is a temperature detector that detects the suction temperature, which 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. Inside the microcomputer 22, there is a storage section 23 that stores a preset temperature. 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, and a variable drive signal generation means 24 that converts the signal generated by the drive signal generation means 24 into the rotational speed of the air blower 16. It has means 25. A thermistor 21, which is a temperature detection means, is connected to the input side of this microcomputer via a comparator 26, and a variable temperature sensor, which is a drive means, is connected to the output side of the microcomputer via a buffer 27 that supplies pulse output to each motor 3.9a, 9b. Blower16. Medium motor 3. A left motor 9a and a right motor 9b are connected. Here, 27 is a bias resistor, and 28 is a scan resistor.

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

The blowout temperature t is the temperature detected by the thermistor 21, and tl and t2 are the set temperatures. When this blowing temperature t is lower than the first set temperature, the variable speed
6 is high rotation speed, middle motor 3 is rotated to the left, left motor 9
Rotate the motor a to the left, rotate the right motor 9b to the right, and stop. Here, rotating the middle motor 3 to the left moves the upper and lower deflection blades 1 to the lower position, rotating the left motor 9a to the left moves the left deflection blade 5a to the right, and rotating the right motor 9b to the right moves the left deflection blade 5b to the lower position. indicates that it is driven to the left. That is, the blown air is concentrated downward, as shown in FIG. 9. At this time, the upper and lower deflection blades 1. Although it is not known in what initial state the left deflection vane 5a and right deflection vane 5b are, they always rotate to the above-mentioned positions after each motor 3.9a, 9b is driven. That is, in the initial state, when the deflection is already at the same position as the position after the deflection, 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 3, 9a, 9b rotates, the temperature of the thermistor 21 and the set temperature are compared again before or during rotation as necessary. Next, when the temperature t of the thermistor 21 is higher than the first set temperature t1 and lower than the second set temperature t2,
The variable blower 16 is set to a low rotation speed, the left motor 9a is rotated clockwise, the right motor 9b is rotated counterclockwise, and then stopped. That is, the blown air becomes a downward branch as shown in FIG.

Before this operation, when the deflection blades are already in the downward concentrated state as shown in FIG. 9, only the left and right deflection blades 5a and 5b are substantially deflected.

By performing the above operation, a large amount of air is concentrated downward, and when the temperature of the air is warm, a small amount of air is blown downward so as to indirectly hit the human body.

The effect of such an operation at the start of heating operation will be explained. At the start of heating operation, by blowing a large amount of air in a concentrated downward direction, the ventilation resistance is minimized, the maximum capacity is achieved, and the start-up characteristics are improved.

Next, when the temperature of the air outlet becomes high, the air volume is reduced and the air is diverted downward, so that the heating effect is performed from the periphery of the living space. That is, 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 rise time can be shortened and the temperature distribution within the living space can be made uniform.

Effects of the Invention As is clear from the description of the above embodiments, the present invention lowers the rotational speed of the variable blower and changes from downward concentrated airflow to downward branching airflow when the airflow temperature reaches a certain set temperature. After the rise time is shortened, the warm air is heated from around the lower part of the living space, that is, from the wall surface, so that the temperature distribution can be made uniform.

[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 of the wind deflection device. Block diagram, Fig. 4 is a perspective view of the air conditioner equipped with the air deflection device, Fig. 5 is a longitudinal sectional view of the air conditioner, Fig. 6 is a refrigerant circuit diagram of the air conditioner, Fig. 7 8 is a flowchart showing the control contents of the air deflection device, FIG. 9 is an explanatory diagram showing the downward concentrated blowing state in the air conditioner, and FIG. 10 is an electrical circuit diagram of the main parts of the air conditioner. 11 and 12 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 vane, 9a...Left motor, 9b...
...Right motor, 10... Indoor unit, 12.
...Air outlet, 15...Indoor heat exchanger, 1
6...Variable blower, 17...Compressor,
2゜...Outdoor heat exchanger, 21a, 21e...
...Temperature sensor, 21b...Current detector 1.
21c, 21d...pressure detector, 22...
...Microcomputer, 23...Storage section,
24... Drive signal generating means, 25...
Rotation speed variable means. Name of agent Patent attorney Toshi Nakao 1 person Fig. 2 Fig. 3 Fig. 4 ~ /θ Fig. 8 /'θ---Seinaiuchiku ~ Fig. 9 /θ Fig. 10 / θ

Claims (1)

[Claims] an indoor unit that includes a compressor that compresses a refrigerant and constitutes a refrigeration cycle together with an indoor heat exchanger, an outdoor heat exchanger, and an outdoor heat exchanger, a variable blower, and the indoor heat exchanger; A blower outlet provided in the unit that blows out the air that has passed through the indoor heat exchanger; a vertical deflection blade that vertically deflects the air blown from the blower outlet; a left-right deflection blade that deflects air blown out from the air outlet in the left-right direction;
a driving means for reciprocating the upper and lower deflection blades and the left and right deflection blades; a variable means for varying the air volume of the variable blower; and an output means for outputting to the variable means, and before the temperature of the blower or the room temperature reaches a predetermined value, the wind is concentrated downward with strong wind, and when the temperature of the blower or the room temperature reaches the predetermined value, the blower is with a weak wind. A method of deflecting the air conditioner's wind direction by changing it to a downward diversion direction.