JPS63118550A - Ceiling-installed air conditioner - Google Patents

Abstract

PURPOSE:To make uniform the temperature of air conditioned space and simplify the construction by attaching both functions of drawing ventilation function and one that gives a spiral component to the air supplied to a drawing ventilator. CONSTITUTION:By the rotation of rotary vanes 6 attached to a rotor 3 which is interlocked with a motor 5, the air in the air conditioned space is drawn from an inlet 2. As it passes through a heat exchanger 4, the temperature regulated to a desired level, and then, by being given a spiral component due to the rotation of the rotary vanes 6 and a downwardly expanding component due to a downwardly expanding vane 7, spiral downwardly expanding air flows A, B, C, D are formed. Therefore, the blown air hardly hits directly the human body or objects to be air conditioned. Thereby, a uniformly air conditioned space is obtained, and since the drawing ventilator has both the functions of drawing ventilation function and one that gives the spiral component to the blown air, the construction can be simplified.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an improvement in the air blowing method of a ceiling-mounted air conditioner that is installed in the ceiling or suspended from the ceiling. is.

[Conventional technology]

Figure 4 is a cross-sectional view of a conventional air conditioner.

In the figure, (1) is the main body of the air conditioner installed in the ceiling, (2) is the intake port for taking air from the conditioned space into the air conditioner (1), ae is the blower, and r4) is The heat exchanger (7) is an outlet provided around the inlet (2).

(8) is a downward vane provided at the air outlet (7) for deflecting the airflow downward at an arbitrary angle. Here, the blower (31Fi) sucks in air from the suction port (2) and blows it out from the blowout port (5), and the heat exchanger (4) is installed in the passage of air flowing from the suction port (2) to the blowout port (5). 5 is a sectional view showing a conventional air conditioner shown in, for example, Japanese Utility Model Application Publication No. 61-36218. +91 is an air conditioner. machine (1
) is installed on the ceiling surface, συ is a wind direction changer for deflecting the blown airflow downward at an arbitrary angle, and ae is a guide surface for guiding the deflected airflow. Figure 6 is an example of JP-A-56.
This is a structural diagram of the outlet of the conventional air conditioner shown in No.-42044, where α2 is provided at the outlet (7) and changes the wind direction continuously by a drive device along one or two axial directions. It is a rotating louver for.

Next, the operations shown in FIGS. 4 and 5 will be explained.

The air in the conditioned space that is sucked into the blower 3 from the suction port (2) passes through the heat exchanger (4), where it is set at a desired temperature and then blown out from the air outlet (7) into the conditioned space. be done. At this time, in order to equalize the temperature of the air-conditioned space, in the conventional example shown in FIG. 4, the direction of the blowout flow is deflected in an appropriate direction by setting the angle of the lower vane (8).

For example, during heating, the lower vane (9) is set closer to the vertical direction in order to prevent the hot air from being deflected upward or in the spreading direction due to temperature drift and to reach the floor as much as possible.When cooling, the lower vane (9) is set closer to the vertical direction due to the difference in the density of cold air. In order to resist deflection and reach the cold air flow as far as possible, set it horizontally or toward the spreading direction.Also.

In the conventional example shown in FIG. 5, the same effect that can be obtained by changing the angle of the lower vane is obtained by moving the wind direction changing body aυ up and down. If a rotating louver σ2 like the conventional example shown in Fig. 6 is added to these two examples, the blowout airflow can be made to swing in the horizontal direction by continuously changing the wind direction, and the blowoff tributaries can be spread to every corner of the air-conditioned space. The system aims to equalize the temperature of the air-conditioned space by spreading the air throughout the air and promoting agitation with the surrounding air.

[Problem that the invention seeks to solve]

Conventional air conditioners are configured as described above.
In order to equalize the temperature of the air-conditioned space.

The direction of the blown airflow must be changed to spread the airflow to every corner of the air-conditioned space, and the blown airflow may directly hit people's skin or objects to be air-conditioned, causing discomfort. There were problems such as poor product temperature control.

This invention was made in order to solve the above problems, and provides a ceiling-mounted air conditioner that can equalize the temperature of an air-conditioned space, has a simple mechanism, and can be miniaturized. It is an object.

[Means for solving problems]

A ceiling-mounted air conditioner according to the present invention includes an inlet for sucking air, an outlet provided around the inlet to blow out air, and a passageway for air flowing from the inlet to the outlet. a heat exchanger that introduces air from the mouth and exchanges heat; a suction discharger that is installed downstream of this heat exchanger, sucks in the air from the suction port, gives the air a swirling component, and guides it to the outlet; The heat exchanger is equipped with an airflow direction changing means for giving a downward and spreading direction component to the airflow, so that a swirling downward spreading component is given to the air blown out from the air outlet.

[Effect]

The suction/discharge device according to the present invention has both a suction/discharge function and a function of imparting a swirling component to the blown airflow, so that the temperature of the air-conditioned space can be made uniform and the mechanism is simple.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
Figure (-) is a sectional view taken along the line Tb--Tb in Figure 1(b), showing a ceiling-embedded air conditioner according to an embodiment of the present invention.

FIG. 1(b) is a plan view of the circular grill viewed from below.

(1) is the air conditioner body, a41 is the circular grill, (2)
is a circular suction port thrown into a circular grill I, (5)
is a motor, +3) a rotor rotated by an H motor (5), 14) a heat exchanger 1i arranged to surround the Fi suction port (2), (61 is a rotor that forms a constant angle with the radial direction); (3) A rotating blade fixed on the top, (7) a donut-shaped outlet arranged around the suction port (2), (1) giving a downward spreading direction component to the airflow and deflecting it in the spreading direction. (9)
is the ceiling surface where the main body of the air conditioner is installed. Here, the motor (5), the rotor (3), and the rotating blade (6) form a suction/discharge machine, which is provided downstream of the heat exchanger (4).

Air is sucked in from the suction port (2), gives a swirling component to the air, and is guided to the blowout port (7). Note that the turning direction and the spreading direction will be explained in FIG. In the figure, M indicates the turning direction and N indicates the spreading direction, but there may be some deviation.

Next, the operation will be explained.

Due to the rotation of the rotary vane (6) on the rotor (3) that is linked to the motor (5), the air in the conditioned space sucked in from the suction port (2) is adjusted to the desired level as it passes through the heat exchanger (4). After the temperature is set to , a swirling component due to the rotation of the vane 5 (6) and a downward and spreading direction component are given by the downward spreading vane (7), and the air is blown out from the outlet (7), causing the swirling downward direction. Spreading airflow A, B.

0, form D. It is generally known that swirling jet flow is one of the effective methods when appropriate mixing and diffusion is required within a short distance from the outlet.

Therefore, if a swirling downward spreading airflow is formed as in the present invention, for example, during cooling, if a swirling downward spreading airflow is formed with an appropriate spreading direction component, the cold air flow will be stirred with the surrounding air within a short time. After that, it descends due to the density difference. In addition, during heating, if a swirling downward airflow with almost zero spread direction component is formed, the warm air resists temperature drift and is mixed with the surrounding air while reaching the floor in a vertical downward direction, resulting in air with a uniform temperature. to reach the floor. Therefore, according to this embodiment, the blown air rarely hits directly on people's skin or the objects to be air-conditioned (a space to be air-conditioned with a uniform temperature can be obtained, and the suction and discharge machine has a suction and discharge function). The mechanism is simple as it also has the function of giving a swirling component to the flow.

In addition, although the case of the ceiling-embedded air conditioner was shown in the said Example, the case of a ceiling-hanging type air conditioner may be sufficient.

Fig. 2(a) is a sectional view taken along line Ib-11b of Fig. 2(1)) showing a ceiling-mounted air conditioner according to another embodiment of the present invention, and Fig. 2(b) is a circular grille seen from below. It is a flat surface ■.

(7) is an air outlet provided all around the side surface of the circular grill α4, and αQ is a downwardly expanding vane for deflecting the airflow in the vertical direction. The blowing airflow has a swirling component due to the rotation of the rotary vane (61) fixed to the rotor (3).

The downwardly spreading vane (1 [I) gives a vertical component to form swirling downwardly spreading blow-off airflows A, B, G, and D, producing the same effect as in the above embodiment.

Further, in the above embodiment, the airflow direction changing means is a vane whose direction is variable, but it does not necessarily have to be variable in direction (or may be a duct).

〔Effect of the invention〕

As explained above, according to the present invention, there is provided an inlet for sucking air, an outlet provided around the inlet to blow out air, an outlet provided in a passage for air flowing from the inlet to the outlet, and a A heat exchanger that introduces air from the inlet and exchanges heat therein, a suction discharger that is provided downstream of this heat exchanger, sucks in air from the suction port, gives the air a swirling component, and guides it to the outlet, and a heat exchanger. comprising airflow direction changing means for giving downward and spreading direction components to the airflow that has passed through the container;
Since the air blown out from the air outlet is given a swirling downward force component, an air-conditioned space with a uniform temperature can be obtained, and it also has the function of sucking and discharging the air and giving a swirling component. This has the effect of providing a ceiling-embedded air conditioner that has a simple mechanism and can be miniaturized.

[Brief explanation of the drawing]

1(a) is a sectional view taken along the line Tb-Tb of FIG. 1(b) of a ceiling-embedded air conditioner according to an embodiment of the present invention. FIG. 2(b) is a plan view thereof, and FIG. 2(a) is a second diagram (bl
2(b) is a sectional view taken along the line Wb-11b, and FIG. 2(b) is a plan view thereof. Fig. 3 is an explanatory diagram of the rotating direction and spreading direction, Fig. 4 is a cross-sectional view showing a conventional air conditioner, Fig. 5 is a cross-sectional view showing another conventional air conditioner, and Fig. 6 is a cross-sectional view showing another conventional air conditioner. FIG. 2 is a structural diagram of an air outlet of an air conditioner. (1) is the air conditioner, (2) is the suction port, and (3) is the rotor. (4) is a heat exchanger, (5) is a motor, (6) is a rotating blade, (7) is an air outlet, 01 is a downwardly expanding vane,
f19 is a downwardly expanding vane. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Claims] (1) An inlet that sucks in air, an outlet that is installed around this inlet and blows out air, and an outlet that is installed in a passage for air flowing from the inlet to the outlet, and that introduces air from the inlet and exchanges heat. a heat exchanger installed downstream of the heat exchanger, a suction discharger that sucks air from the suction port, gives the air a swirling component, and guides it to the air outlet; A ceiling-mounted air conditioner is provided with an airflow direction changing means that gives a component in a spreading direction, and gives a swirling downward spreading component to the air blown out from the outlet. (2) The ceiling-mounted air conditioner according to claim 1, wherein the airflow direction changing means is a vane that can change the airflow direction.