JPS6329146A - Air conditioner built-in ceiling - Google Patents

Abstract

PURPOSE:To evenly mix the delivered air in a short distance from the air delivery outlet by providing a heat exchanger which exchanges heat with the air drawn from its air intake and swirl vanes which give a rotational component to the air coming out of said heat exchanger as well as an air flow deflecting means that gives downward and lateral components. CONSTITUTION:The air in an air-conditioned space is drawn by a centrifugal fan 3 from an air intake 2. It is conditioned to a desired temperature when passing through a heat exchanger 4, and is given a rotational component by swirl vanes 6 and downward and lateral components by a downward facing expanding vane 7 to form downward spirally expanding air flows A, B, C, D out of an air delivery outlet 5. In this manner, under a cooling mode operation, cold air flows mix with the surrounding air in a short period of time, and tend to descend due to a density difference. Under a heating mode operation, hot air flows are mixed with the surrounding air before reaching the floor directly downward against the action of temperature drift to form uniform temperature air. Therefore, the delivered air flows hardly hit directly the human skin or air conditioned object to provide an air conditioned space having a uniform temperature.

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. be.

[Conventional technology]

FIG. 5 is a sectional view showing a conventional air conditioner.

In the figure, (1) is the air conditioner body installed in the ceiling, 12) is the inlet for sucking air from the conditioned space into the air conditioner (1), (3) is the blower, and +4) Fi
heat exchanger, (5) is an outlet provided around the inlet;
(9) is a downward vane provided at the outlet (5) for deflecting the Suita airflow downward at an arbitrary angle. Here, the blower (3) sucks in air from the suction port (2) and blows it out from the air outlet (5), and the heat exchanger (4) sucks air from the suction port (2).
2) is provided in the passage of air flowing from the outlet (5),
Air is introduced from the suction port (2) for heat exchange. Fig. 6 is a sectional view showing a conventional air conditioner disclosed in, for example, Japanese Utility Model Publication No. 61-36218. In Fig. 1, (8) is the ceiling surface where the nine-view conditioner (1) is installed, A wind deflector for deflecting the flow downward to any angle.

αQFi is a guiding surface that guides the deflected airflow. 1st
The figure is a structural diagram of the outlet of a conventional air conditioner shown in, for example, JP-A No. 56-42044. +12 is the outlet (
5) K is a rotating louver for continuously changing the wind direction along one or two axial directions by a drive device.

Next, the operations shown in FIGS. 5 and 6 will be explained.

The air in the conditioned space sucked in from the suction port (2) by the blower (3) is set to a desired temperature when passing through the heat exchanger +4), and then is blown out from the air outlet (5) 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. 5, the Suita airflow direction is deflected in an appropriate direction by setting the angle of the lower vane (9). For example, during heating, the lower vanes (9) are set closer to the vertical direction in order to suppress the upward or widening deflection due to temperature drift and allow the warm air to reach as high as possible on the floor. During cooling, the airflow is set horizontally or toward the spreading direction in order to make the cold air flow reach as far as possible against the downward deflection caused by the late density difference. Also.

In the conventional example shown in FIG. 6, the same effect obtained by changing the angle of the lower vane is obtained by moving the wind direction changing body συ up and down. If a rotating louver α2 like the conventional example shown in Fig. 1 is added to these two examples, the blown airflow can be made to swing in the horizontal direction by continuously changing the wind direction, and the blown airflow can be distributed to every corner of the air-conditioned space. The system aims to equalize the temperature of the air-conditioned space by distributing the air and promoting heat exchange 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, causing discomfort. There were problems such as poor product temperature control.

This invention was made to solve the above-mentioned problems, and aims to provide a ceiling-mounted air conditioner in which Suita airflow can be uniformly stirred within a short distance from the outlet.

Another aspect of this invention is that the blown airflow does not directly hit people's skin or objects to be air-conditioned (it is possible to equalize the temperature in the air-conditioned space, making it comfortable or when used in warehouses, etc.). The purpose is to obtain an air conditioner with good temperature control.

[Means for solving problems]

The ceiling-mounted air conditioner according to the present invention includes an inlet that sucks in air, an outlet provided around the inlet that blows out air, and a blower that blows out the air sucked in from the inlet to the outside from the outlet.

A heat exchanger is provided in the passage of air flowing from the suction port to the blowout port, and the air from the suction port is introduced and heat exchanged with the swirling vane. The air blower is provided with a swirling component to impart a swirling component to the air blown out from the air outlet.

Moreover, there is an air conditioner according to another invention of this invention.

A suction port that sucks in air, a suita port provided around the suction port that blows out air, a blower that blows the air sucked in from the suction port to the outside from the blowout port, and a path for air to flow from the suction port to the blowout port. and introduces air from the above-mentioned suction port.

A heat exchanger for exchanging heat, a swirling vane for imparting a swirling component to the air sent out from the heat exchanger, and an airflow direction changing means for imparting a downward and spreading direction component to the air sent out from the heat exchanger, The air blowing out from the air outlet is given a swirling downward spreading component.

[Effect]

The air conditioner according to the present invention is equipped with swirling vanes that give a swirling component to the air sent out from the heat exchanger, so that the air blown out from the outlet has a swirling component and becomes a swirling airflow. The blowing Ithl flow can be stirred with the surrounding 9 pieces within a short distance.

An air conditioner according to another aspect of the present invention includes a swirling vane that gives a swirling component to the air sent out from the heat exchanger, and an airflow direction changing means that gives a downward and spreading direction component to the air sent out from the heat exchanger. Since the air blown out from the Suita outlet has a swirling downward spreading component, it becomes a swirling downward spreading airflow, and the blown airflow can be stirred and mixed with the surrounding airflow within a short distance from the outlet, and the airflow in the air-conditioned space can be mixed. Temperature uniformity can be achieved.

〔Example〕

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

Figure 1(b) is a plan view of the circular grille seen from below.
1 is arranged so as to form a constant angle with respect to the radial direction.

(7) is a swirling vane that gives a swirling component to the air sent out from the heat exchanger; (7) is an airflow direction changing means that gives a share in the downward and spreading directions to the air sent out from the heat exchanger; in this case, it is a downward spreading vane; , the direction of the flow is variable. (+
5a) is a circular grill, the suction port (2) is also circular, and the air outlet (5) is provided around the suction port (21) and has a donut shape.Also, the blower (3) is.

A centrifugal blower is used here.

Note that the turning direction and the spreading direction will be explained with reference to 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.

The air in the air-conditioned space sucked in by the centrifugal blower (3) through the suction port 12) is brought to a desired temperature while passing through the heat exchanger (4), and then transformed into a swirling component by the swirling vane (61). is given a downward and spreading direction component by the downward spreading direction vane (7) and is blown out from the outlet (5), thereby creating swirling downward spreading airflows A, B, and O.

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 this invention, for example, if a swirling downward spreading airflow is formed with an appropriate spreading direction component during cooling, the cold airflow 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 second flow resists temperature drift and reaches the floor in the vertical downward direction, where it is blown away by the surrounding air and becomes uniform. The air reaches the floor as hot air. Therefore, the swirling downward spreading airflow prevents the blown airflow from directly hitting people's skin or objects to be air-conditioned (and provides an air-conditioned space with a uniform temperature).

Next, FIG. 2 shows another embodiment of the present invention. Figure 2 (a
) is a sectional view taken along line l1b-11b of FIG. 2(1)) showing a ceiling-mounted air conditioner according to an embodiment of the present invention,
J is a plan view looking at the square grill from below, (+3b
J is a square grille, and the suction port 12) is square in this case. In addition, the air outlet (5) has a square suction port (2
) are provided at four locations along each side.

(6) is a rotating vane which is arranged in the same direction for each outlet (5) and gives a swirling portion to the air sent out from the heat exchanger.

(7) is a flow direction changing means that gives downward and spreading direction components to the air sent out from the heat exchanger; in this case, a downward spreading vane is used to change the flow direction.

In this embodiment, the operation and effects are similar to the above embodiment.

Further, in the above embodiment, a ceiling-embedded air conditioner is shown, but a ceiling-mounted air conditioner may also be used.

FIG. 3(a) is a sectional view taken along line xb-11) of FIG. 3(1)) showing a ceiling-suspended air conditioner according to another embodiment of the present invention.

FIG. 3 (1)) is a plan view of the circular grille viewed from below.

(5) is an air outlet provided all around the side surface of the circular grill (+Sa), and (9) is an airflow direction changing means for deflecting the airflow in the vertical direction. Here, the direction is variable with a downwardly expanding vane. . The blowing airflow is given a swirling component by the swirling vane (6) and a vertical component by the downwardly expanding vane (9), resulting in a swirling downwardly expanding airflow A.

B, O, and D are formed, and the same effect as in the above embodiment is achieved.

In the above embodiment, the airflow direction changing means is a vane whose airflow direction is variable, but it may also be a duct.

〔Effect of the invention〕

As explained above, according to the present invention, there is a suction port that sucks air, an air outlet provided around the suction port that blows out air, a blower that blows the air sucked in from the suction port to the outside from the air outlet, and the suction port. A heat exchanger is provided in the passage of air flowing from the air outlet to the Suita outlet, and a heat exchanger is provided for introducing air from the suction port and exchanging heat, and a swirling vane is provided for imparting a swirling component to the air sent out from the heat exchanger, Since a swirling component is given to the air blown out from the outlet, the effect is that a ceiling-mounted air conditioner can be obtained that can mix the air blown out from the outlet with the surrounding air within a short distance from the outlet. .

In another aspect of the present invention, there is provided a suction port for sucking air, an air outlet provided around the suction port for blowing out air, a blower for blowing the air sucked in from the suction port to the outside from the air outlet; a heat exchanger provided in a passage for air flowing from the suction port to the air outlet, which introduces air from the suction port and exchanges heat; a swirling vane that imparts a swirling component to the air sent out from the heat exchanger; Since the airflow direction changing means is provided to give a downward and spreading direction component to the air sent out from the heat exchanger, and a swirling downward spreading component is given to the air blown out from the Suita mouth,
It is possible to achieve uniform temperature in the air-conditioned space, and 2. For example, when used in a living room, the Suita airflow is less likely to touch the human skin (comfortable air conditioning can be obtained). In this case, the outlet airflow is less likely to directly hit the stored products (this has the effect of providing a ceiling-mounted air conditioner that provides air conditioning with good product temperature control).

[Brief explanation of drawings]

FIG. 1(a) relates to an embodiment of the present invention, and is a closer view of FIG. 1(b) showing a ceiling-embedded air conditioner with a circular suction port.
Fig. 1 (1)) is a plan view thereof, and Fig. 2 (a) relates to another embodiment of the present invention, showing a ceiling-embedded air conditioner with a square suction port. Figure 2 (mb of bl
-11b is a line sectional view, FIG. 2(b) is a plan view thereof, and FIG. -Wb line sectional view, Figure 3 (1)) is its plan view, Figure 4 is a diagram explaining the swirling direction and spreading direction, Figure 5 is a sectional view showing a conventional air conditioner, and Figure 6 is FIG. 1 is a cross-sectional view showing another conventional air conditioner. FIG. 1 is a structural diagram of an air outlet of another conventional air conditioner. (1) is an air conditioner, (2) is an inlet, (3) is a blower, 14) is a heat exchanger, (5) is an outlet, (61 is a swirling vane, (7) is a downwardly expanding vane, ( 8) is the ceiling surface. In Figure 9, the same reference numerals indicate the same or equivalent parts.

Claims (7)

[Claims] (1) An inlet that sucks in air, an outlet that is installed around this inlet and blows out air, a blower that blows the air sucked in from the inlet to the outside from the outlet, and air that flows from the inlet to the outlet. A heat exchanger is provided in the passageway of the air passageway, and includes a heat exchanger that introduces air from the above-mentioned suction port and exchanges heat therewith, and a swirling vane that gives a swirling component to the air sent out from the heat exchanger, and swirls the air blown out from the above-mentioned outlet. A ceiling-mounted air conditioner designed to provide the necessary components. (2) An inlet that sucks in air, an outlet that is installed around this inlet and blows out air, a blower that blows the air sucked in from the inlet to the outside from the outlet, and air that flows from the inlet to the outlet. A heat exchanger that introduces air from the above-mentioned suction port and exchanges heat with it, a swirling vane that gives a swirling component to the air sent out from this heat exchanger, and a lower A ceiling-mounted air conditioner comprising airflow direction changing means for imparting components in the direction and spreading direction, and giving a swirling downward spreading component to the air blown out from the outlet. (3) The ceiling-mounted air conditioner according to claim 2, wherein the inlet is circular, and the outlet is donut-shaped provided around the circular inlet. (4) The ceiling-mounted air conditioner according to claim 2, wherein the inlet is rectangular, and the outlet is provided along each side of the rectangular inlet. (5) The rotating vane is formed so as to form a constant angle with respect to the radial direction of the circular suction port.
Ceiling-mounted air conditioners described in Section 1. (6) The ceiling-mounted air conditioner according to claim 4, wherein the rotating vanes are formed in the same direction with respect to each side of the rectangular suction port. (7) The ceiling-mounted air conditioner according to claim 2, wherein the airflow direction changing means is a vane whose airflow direction is variable.