JPH02197751A - Wind direction automatic control type air conditioner - Google Patents

Abstract

PURPOSE:To equalize practically a room temperature distribution and virtually fix an air capacity or temperature physically sensed by fixing the volume of air which reaches the floor per unit time over the entire region around a vane's angle control range. CONSTITUTION:A vane 2 is formed in sheet shape almost over the whole length of a blowoff port 1. A rotary shaft 3 adjusts a slanting angle of the vane 2 against the opening surface of the blowoff port 1 accompanying the rotation of a motor. The motor makes a reciprocal rotation in a fixed cycle over a specified angle range, thereby reciprocating the vane 2. When the temperature of air discharged from the blowoff port 1 is higher than room temperature, the blowoff air will be directed upward if the wind direction exceeds 45 deg.C against the direction directly under the blowoff port 1. During heating operation, the vane 2's angle control range is limited to two angle regions and, thereby minimizing waste. During cooling operation, the angle of the vane 2 should be controlled over all the angle regions alpha, beta, and gamma.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an automatic wind direction adjustment type air conditioner in which a drive source drives a vane that adjusts the direction of air discharged from an air outlet to periodically adjust the direction of the air. [F: Previous technology] As shown in Fig. 1, a temporarily formed vane 2 is arranged at an air outlet 1 that opens on the ceiling surface, and the vane 2 is inclined with respect to the opening surface of the air outlet 1. BACKGROUND ART Air conditioners have been proposed that adjust the wind direction by adjusting the angle. That is, the inclination angle of the vane 2 with respect to the opening surface of the air outlet 1 (the vane is perpendicular to the opening surface 0°) is adjusted by a drive source such as a motor.

[The problem that the invention aims to solve]

By the way, when the air outlet 1 is opened on the ceiling surface, the amount of air per unit time that reaches the vicinity of the floor where a person is present changes depending on the wind direction. In other words, the flow velocity of air blown from outlet 01 decreases as the distance M from outlet 1 increases, and since the distance from outlet 1 to the floor changes depending on the wind direction, the unit that reaches near the floor The amount of air per hour changes depending on the wind direction. As a result, a problem arises in that the amount of air blown from the air conditioner reaches a smaller amount in a region farther away from the air outlet 1 than in the vicinity immediately below the air outlet 1, and the effect of the air conditioner is less. The present invention aims to solve the above-mentioned problems, and aims to provide a wind direction in which the amount of air discharged from the air outlet and reaching the floor per unit time is approximately constant over the entire angle adjustment range of the vane. The aim is to provide an automatically regulating air conditioner.

[Means to solve the problem]

In order to achieve the above object, the present invention adjusts the moving speed of the vane so that the amount of air discharged from the outlet and reaching the floor surface per unit time is approximately constant over the entire range of the wind direction adjustment range by the vane. That's what I'm doing.

[Effect]

According to the above configuration, the amount of air reaching the floor surface per unit time is almost constant over the entire range of the angle adjustment range of the vane, so the temperature distribution in the indoor space can be made almost uniform, which is felt The air volume and temperature also remain constant.

【Example】

As shown in FIG. 2, the air conditioner includes a box-shaped blow-off tube 11, and this blow-off tube 11 is attached to a ceiling material 12, as shown in FIG. A connecting tube 13 is protruded from a side surface of the blowing tube 11 located above the ceiling material 12, and the connecting tube 13 is connected to the air conditioner main body via an air hose. An elongated air outlet 1 is opened at a portion of the air outlet tube 11 that is exposed on the lower surface of the ceiling material 12, and a vane 2 is disposed within the air outlet 1. The vane 2 is formed into a plate shape that extends approximately the entire length of the air outlet 1, and is supported by a rotation axis 3 running in the longitudinal direction of the air outlet 1 so as to swing in the direction of rotation. is connected to the output shaft of a constant speed motor (not shown) which is a driving source, and the angle of inclination of the vane 2 with respect to the opening surface of the air outlet 1 is adjusted as the motor rotates. ing. Here, the motor rotates forward and backward within a predetermined angular range at a constant cycle, so as to move the vane 2 back and forth as shown in FIG. 3. By the way, the height from the floor to the ceiling is 2.5 to 3.5
degree, the angle adjustment range of the vane 2 is five angle regions α and β, as shown in FIG. It is divided into γ. The angular area α is an area of 60' extending 30° forward and backward from the center directly below the air outlet 1, the angular area β is 30° outside of that, and the angular area γ is an area of 30° further outside of that. is set. Therefore, 5
The sum of the three angular regions α, β, and γ is a range of 180°. In the angular region α, the vane 2 is driven so that the angular velocity is constant, and in the angular region β, the vane 2 stops every 3 to 6 degrees, and the average angular velocity in the angular region β is approximately half of the angular velocity in the angular region α. It is operated intermittently so that The reason why the average angular velocity in the angular region β is set to approximately half the angular velocity in the angular region α is as follows. In other words, the wind speed that is felt to be comfortable is between 0.2 and 0.
, 5 a/see, and the wind speed is set to be 0.2β/sec in the direction of 60° with respect to the direction directly below the outlet 1. Since the distance is halved, the wind speed is 0.5 x/
It becomes more than sec. That is, compared to the direction directly below the air outlet 1, the amount of air that reaches the floor surface in the 60° direction is less than half that per unit time. Therefore, in the angle range β set in the angular range of 30 to 60 degrees with respect to the direction directly below the air outlet 1, the angle range β is 0 to ±30 degrees with respect to the direction directly below.
By setting the passage time to be twice as long as the angle range α set in the range, the amount of air blown out from the air outlet 1 reaches approximately the same amount in both angle ranges α and β. The angular region γ may be covered by an adjacent blow-off tube 11, as shown in FIG. By the way, when the temperature TO of the air blown out from the outlet 1 is higher than the room temperature Tr (T. > Tr), in a wind direction of 45 degrees or more with respect to the direction directly below the outlet 1, the blown air Turn upward. Therefore, under such conditions, the blown air does not reach the floor in a region where the direction of the wind relative to the direction immediately below the air outlet 1 is large, and blowing out air in such a direction becomes wasteful. Therefore, when the condition is T o > T r (during heating), the angle adjustment range of the vane 2 is limited to two angle ranges α and β to reduce waste. Also, To<Tr
(during cooling, which is often the case), all angular regions α
, β, and γ, the angle of the vane 2 may be adjusted. At this time, the cold air blown out from the outlet 1 is bent downward, so that the air blown out in a direction 90 degrees with respect to the direction directly below the outlet 1 is also effectively utilized.

【Effect of the invention】

As described above, the present invention adjusts the moving speed of the vane so that the amount of air discharged from the outlet and reaching the floor surface per unit time is approximately constant over the entire range of the wind direction adjustment range by the vane. Since the amount of air reaching the floor surface per unit time is almost constant over the entire angle adjustment range of the vane, the temperature distribution in the indoor space can be made almost uniform, and the perceived air volume and temperature can be has the advantage that it remains almost constant. Further, as a result of the temperature distribution in the room becoming almost constant, there is an advantage that the start-up becomes faster.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the main parts showing an embodiment of the present invention, Fig. 2 is a perspective view of the main parts of the same, Figs. FIG. 1...Air outlet, 2...Vane. Agent Patent Attorney Ishi 1) Chief 7th 1 Figure 2 (2T (a) Figure 3 (b) (C)

Claims (1)

[Claims] (1) In an automatic wind direction control type air conditioner, a vane is installed to adjust the direction of air discharged from an air outlet opening in the ceiling, and the vane is driven by a drive source to periodically adjust the wind direction. An air conditioner with automatic wind direction adjustment, characterized in that the moving speed of the vane is adjusted so that the amount of air discharged from the outlet and reaching the floor surface per unit time is approximately constant over the entire range of air direction adjustment by the vane. .