JPH0792270B2 - Air conditioner wind direction changing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improvement in a wind direction changing device that changes a wind direction by a wind direction changing blade arranged at an air outlet of an air conditioner.

(Prior Art) Generally, an air-direction changing device for an air conditioner sets a blowing direction by manually rotating an air-direction changing blade arranged at an air outlet. For this reason, for example, during heating operation, the occupants feel discomfort (draft feeling) in the state of strong airflow and downward blowing, and the warm air cannot reach near the floor surface in the case of weak airflow, resulting in efficient heating. There is a problem that you cannot do it.

To improve the above problems, Japanese Patent Publication No. 60-
As disclosed in Japanese Patent No. 40776, in the air outlet, a wind direction changing blade that is rotated by a driving device such as a motor is arranged in the middle of a pair of guide walls having a shape that expands in the flow direction, and An auxiliary blade that is rotated in the opposite direction to the wind direction changing blade is provided on one of the guide walls, and the action of adhering the flow to the pair of guide walls is changed by the rotation of the wind direction changing blade and the auxiliary blade. There are some that try to obtain changes in wind direction and wind speed. In addition, as disclosed in "Blowing Technology for Heat Pump Air Conditioners" (National Technical Report Vol. 30, No. 5, October 1984)
There is one that sets four types of a weak wind, a light wind, a weak wind, and an ultra-light wind, and incorporates a program that randomly controls the combination of the wind speeds and the blowing time to obtain a blowing close to nature.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional case, a heater and a drive mechanism are required in the former case, which makes the structure complicated, and in the latter case, the blower itself is directly controlled. Therefore, even if there is a large change in the wind speed, it is difficult to make subtle fluctuations, and there is a drawback that the cost is high.

The present invention has been made in view of the above problems, and an object thereof is to open and close two blades at the time of opening and closing vibration based on a lift principle called a Vice-Hoff mechanism that obtains propulsion force by opening and closing the two blades. Focusing on the fact that air flow also occurs outside the room, and by applying this to the wind direction changing blades, it is possible to generate fluctuating wind in accordance with the indoor environment with a simple configuration, and to create a comfortable air conditioning for residents. It is about creating a space.

(Means for Solving the Problems) In order to achieve the above object, the solution means of the present invention is arranged in an air conditioner (5) as shown in FIG. And a wind direction changing blade (6) which is connected to the wind direction changing blade (6) and is composed of two blades (7) and (8) that can be opened and closed based on the Visehoff mechanism. A vibration control means (16) for controlling the opening and closing vibration to change the direction of air blown from the air blower fan (3) is provided.

(Operation) According to the present invention, the wind direction changing blade (6) arranged at the air outlet (5) of the air conditioner performs the opening / closing vibration based on the Visehoff mechanism by the vibration control means (16). , It creates a slight fluctuation in the air flow because it creates the opposite air flow to the outside during the opening and closing operations, giving the occupants a comfortable feeling. Vibration control means (16)
Thus, the vibration velocity and angle of the wind direction changing vane (6) can be arbitrarily changed, fluctuations in the blowing air can be created according to the room temperature, the wind speed, the program, etc., and a fine and comfortable air-conditioned space can be created.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to FIGS. 1 to 6.

FIG. 1 shows a side view of a wall-mounted air conditioner equipped with the wind direction changing device of the present invention. In FIG. 1, (1) is an air inlet provided on the front surface of the main body casing (4),
(2) is a heat exchanger for exchanging heat of the blown air, (3) is a fan for blowing air, (5) is an air outlet provided at the bottom of the main casing (4), and the fan (3) is provided. The air taken in from the air intake port (1) is heat-exchanged by the heat exchanger (2) by the operation of (1) and then blown out from the air outlet port (5).

(6) is a wind direction changing blade which is arranged at the air outlet (5) and changes the wind direction as well as the wind direction of the blown air, and the structure thereof is shown in FIG. In FIG. 3, (A),
(A '), (B), and (B') are piezoelectric sheets having in-plane anisotropy in which fine particles of a ceramic piezoelectric material are dispersed in a fluoropolymer. Wind direction changing blade (6)
Is the above-mentioned piezoelectric sheets (A) and (A '), (B) and (B')
To the metal (C) and (D), respectively, and two blades (7) and (8) composed of bimorph elements each having electrodes provided on both sides are made of an insulator (E) at one end. It is made by connecting. Here, the wind direction changing blade (6) is set to have a width of 60 mm, for example.
FIG. 4 shows the characteristics of the wind direction changing blade (6) having the above structure. The bimorph element bends due to a difference in expansion and contraction of the two piezoelectric sheets depending on the polarities of the voltages applied to the electrodes on both sides of the bimorph element, and is curved so that the side to which the negative voltage is applied is convex. Therefore, when a voltage is applied with the polarity as shown in FIG.
The vanes (7) and (8) perform an inward closing movement, and the air around the vanes circulates outward. Also, the third
When a voltage is applied in the polarity as shown in Fig. (B), the two blades (7) and (8) perform an outward opening motion, and the air around the blades circulates inward, so-called vise. Demonstrate the Hoff mechanism. This vice-hoff mechanism is a lift principle that attempts to obtain propulsive force by paying attention to the air flow inside the two blades (7) and (8) that are sometimes opened and closed. ) And (8) are also generated at the same time, and as shown in FIG. 2, a reverse flow is created on the outside of the two blades (7) and (8) by the opening operation and the closing operation. is there.

Further, in FIG. 1, (11) is a variable power supply provided with two sets of AC power supplies with a standard voltage of 200 V for applying a variable voltage to the two blades (7) and (8) of the wind direction changing blade (6). , (12) is a control circuit for controlling the variable power source, (13)
Is a temperature sensor arranged indoors, (14) is a wind speed sensor arranged near the air outlet, and (15) is a program setting device. Here, the control circuit (12) controls the voltage of the variable power source (11) according to the signals of the temperature sensor (13), the wind speed sensor (14), and the program setter (15), and the wind direction changing blade. The magnitude and frequency of the voltage applied to the two blades (7) and (8) of (6) are simultaneously and arbitrarily changed.

With the above configuration, the wind direction changing blade (6) operates in accordance with the control signal of the control circuit (12), and the vice as shown in FIG. 3 is responsive to the changing applied voltage of the variable power source (11). Open and close vibration based on the Hoff mechanism. For example, the wind direction changing blade (6) has a cycle of about 10 seconds
When a standard AC voltage of 0 V is applied, an opening and closing vibration with an amplitude of 16.5 mm is generated, and during the opening operation, an air flow opposite to the air blowing direction is generated outside the wind direction changing blades, which weakens the wind speed.
At the time of closing operation, the wind speed is strengthened by the opposite action. Therefore, subtle fluctuations occur in the conditioned air blown out from the air outlet (5). Further, by mutually changing the magnitudes of the voltages applied to the two blades (7) and (8) of the wind direction changing blade (6), the respective amplitudes can be mutually changed, and the change in the wind direction can be changed. Also produces.

The variable power supply (11), the control circuit (12), the temperature sensor (13), the wind speed sensor (14), and the program setting device (15) cause the wind direction changing blade (6) to vibrate based on the Visehoff mechanism. It constitutes the vibration control means (16).

FIG. 5 shows the flow of conditioned air in the room by the wall-mounted air conditioner equipped with the wind direction changing device. In FIG. 5, the wind direction changing blade (6) arranged at the air outlet (5) is vibrated by the vibration control means (16) at an arbitrary cycle or amplitude according to the room temperature, the wind speed, or the program during cooling and heating. However, it produces subtle fluctuations in the speed and direction of the air flow, giving the occupants a comfortable air-conditioning feeling without a draft. Further, since the air blowing range is diffused by the vibration of the wind direction changing blades (6), the conditioned air circulates uniformly in the room, and in combination with the fluctuation effect, a very fine conditioned space is created. .

The wind direction changing device of the present invention can be applied to various air conditioners, and FIG. 5 shows an example in which the above-mentioned wind direction changing device is provided in a ceiling-embedded air conditioner (vibration control in this figure). Means are omitted). In FIG. 5, the air taken in from the air suction port (1 ') is the fan (3'),
It is sent in two directions by (3 ') and is heat-exchanged by heat exchangers (2'a) and (2'b), respectively.
The air is blown into the room from air outlets (5'a) and (5'b) provided at the locations. At this time, in FIG. 5, the left and right wind direction changing blades (6'a) and (6'b) are given a slight fluctuation due to the vibration by the Vise Hoff mechanism and are diffused in the room. Synchronize the vibration states of the blades (6'a) and (6'b),
Alternatively, it is possible to create a more detailed and comfortable air-conditioned space by performing complicated control such as setting the opposite phase or changing the cycle.

The structure of the wind direction changing blade provided in the wind direction changing device of the present invention is not limited to the structure including the bimorph piezoelectric element of the above-described embodiment, and mechanically for opening and closing two blades,
Alternatively, various structures having an electric drive mechanism in the vibration control means can be appropriately adopted. As an example, FIG. 6 shows one using a shape memory alloy. In FIG. 6, (7 ″) and (8 ″) are plate-like members (20a) and (20b) that constitute an airflow direction changing blade (6 ″) with two blades whose ends are rotatably fixed. ) Is a shape memory spring formed of a shape memory alloy such as a Ti-Ni alloy, (21
a) and (21b) are the shape memory springs (20a) and (2).
Heaters for heating 0b), (22a) and (22b)
Is a bias spring, the ends of which are commonly fixed.
(23) is a control device for applying a variable voltage to the heaters (21a) and (21b), and is provided with various sensors and timers. When a voltage is applied to the heaters (21a) and (21b), the shape memory springs (20a) and (20b) are heated. The shape memory springs (20a) and (20b) have a property of being easily deformed at room temperature, and the shape springs (22a)
And (22b), and the wind direction changing blade (6 ″)
The two blades (7 ″) and (8 ″) are closed, but when heated, they generate a shape memory effect and contract, so the two blades (7 ″) and (8 ″) To open the. Therefore, the control device (23)
From the heater (21a)
By controlling so that (21b) and (21b) are heated and cooled at the same time, opening and closing vibration based on the Visehoff mechanism can be generated in the two blades (7 ″) and (8 ″). In the above, the shape memory springs (20a) and (20b), the heaters (21a) and (21b), the bias springs (22a) and (22b),
And the control device (23) constitutes a vibration control means (16 ″) for controlling the vibration of the wind direction changing blade (6 ″). Even if each air conditioner is equipped with the air-direction changing device having the above-described configuration, it is possible to blow a wind with any fluctuation into the room according to the indoor environment to create a comfortable air-conditioned space, as in the above embodiment.

(Effects of the Invention) As described above, according to the present invention, the air outlet is provided with the wind direction changing blade that vibrates by the Vise Hoff mechanism. Therefore, with a simple structure, the wind speed for blowing the air conditioner,
Fluctuations in the wind direction can be created arbitrarily, and comfortable ventilation can be performed.

Further, if the vibration control means is provided with a wind speed sensor, a room temperature sensor, a program setting device, etc., a more detailed and comfortable air-conditioned space can be created.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention, FIG. 1 is a schematic vertical sectional side view when applied to a wall-mounted air conditioner, and FIG. 2 is a wind direction changing blade composed of two Valmorph elements. 3 (a) and 3 (b) are explanatory views of the vice Hoff mechanism of the wind direction changing blade, and FIG. 3 (a) is a state when the two blades are closed, and FIG. B) indicates the state when opened. FIG. 4 is an explanatory diagram showing circulation of conditioned air in the room. FIG. 5 is a vertical sectional side view when applied to a ceiling-embedded air conditioner, and FIG. 6 is a schematic view showing a modified example of the wind direction changing device. (5) ... Air outlet, (6), (6 '), (6 ") ...
... Wind direction changing blades, (7), (7 '), (7 "),
(8), (8 '), (8 ") ... blades, (16) ... vibration control means.

Claims (1)

[Claims] 1. A wind direction changing vane which is arranged at an air outlet (5) and whose one ends are connected to each other and which can be opened and closed based on a Vise Hoff mechanism. (6), and a vibration control means (16) for controlling the wind direction changing blade (6) to change the direction of air blown from the air blower fan (3) by causing opening and closing vibration based on a Vise Hoff mechanism. An air conditioner changing device for an air conditioner.