JP2007085661A - Air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning system of small heat loss by concentrically uniformly radiating heat from a central portion of a ceiling panel while coping with temperature change. <P>SOLUTION: This air conditioning system wherein a space 7 is defined inside of the ceiling panel 1, an air conditioner 3 comprising a centrifugal blower 11 having a rotating shaft 9 approximately orthogonal to a ceiling is installed on a central portion of a horizontal face inside of the ceiling panel 1, and a supply opening 14 of the air conditioner 3 is directed to the outer peripheral direction of the centrifugal blower 11, can perform cooling from a main body of the air conditioner 3 to an end portion of the ceiling panel 1 by the most direct way, is an energy-saving system of small heat loss, and can provide residents with equal heat radiation at any place on a concentric cycle around a center of a living room, thus the plurality of residents can have comfortable feeling in the living room, a dining room and the like. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air conditioning system that controls a thermal environment of an indoor space by a ceiling panel that performs thermal radiation.

Conventionally, this type of air conditioning system has been devised to flow air conditioning air that is heat-exchanged from the upstream to the downstream of the space inside the ceiling. (For example, refer to Patent Document 1). FIG. 6 shows the configuration of the system described in Patent Document 1. In FIG. As shown in FIG. 6, an air flow path 2 is provided inside the ceiling panel 1, and the air cooled and heated by the air conditioner 3 provided on the back of the ceiling is the upstream inlet 4 of the air flow path 2. It flows in one way from the downstream to the downstream outlet 5. Here, the ceiling panel 1 is formed so that the thermal resistance decreases from the upstream inlet 4 toward the downstream outlet 5, so that the surface temperature on the room side is kept constant and uniform heat radiation is performed. It has become.
Japanese Patent Laid-Open No. 9-250783

  However, the conventional configuration is effective when it is intended to maintain a certain temperature, but such an air conditioning system often changes the temperature according to the environmental load while actually operating. . If the thermal resistance of the ceiling panel is different at the time of such temperature change, the amount of stored heat is naturally different, so that it is not possible to quickly respond to the temperature change and there is a possibility that uniform heat radiation will not be achieved. For example, during cooling, if the ceiling panel temperature has been lowered too much and it is desired to raise the temperature slightly, the upstream inlet having a high thermal resistance is less likely to follow the change in the rise and may remain cooled. In this case, the ceiling temperature on the upstream side is low and the ceiling temperature on the downstream side is high, resulting in non-uniform heat radiation.

  In addition, when air-conditioning air flows in one way in this way, there are always upstream and downstream sides facing the living room, and the above problems occur, and the length of the entire air flow path is the ceiling panel length starting from the air conditioner Therefore, the heat loss during the period is not small, and there is a problem that it may require extra power consumption in the entire air conditioning system.

  The present invention solves the above-mentioned conventional problems, and by using an air conditioner equipped with a centrifugal blower installed at the center of the ceiling panel, a uniform heat is formed concentrically from the center of the ceiling panel while adapting to temperature changes. An object of the present invention is to provide an air conditioning system that performs radiation and has low heat loss.

  In order to solve the above-described conventional problems, an air conditioning system according to the present invention is a centrifugal type in which a space is provided inside a ceiling panel, and a central portion in a horizontal plane inside the ceiling panel has a rotation axis substantially orthogonal to the ceiling. An air conditioner equipped with a blower is installed, and the outlet of the air conditioner faces the outer peripheral direction of the centrifugal blower.

  As a result, the ceiling panel can be air-conditioned to the end of the ceiling panel at the shortest distance from the air conditioner body, and heat loss can be reduced.

In the air conditioning system of the present invention, the air inlet of the air conditioner is on the upper surface, so that the air that has cooled and heated the ceiling panel is drawn along the back of the ceiling that does not require air conditioning on the side opposite to the room. The heat loss can be reduced.

  The air conditioning system of the present invention has a suction port on the side of the central room in the horizontal plane of the ceiling panel and a blowout port on the side of the room on the outer periphery of the ceiling panel, and the suction port of the air conditioner is on the lower surface. It is the same as the inlet of the ceiling panel.

  As a result, air that has cooled and heated the ceiling flows into the room, so that temperature control not only by radiation but also by convection is possible.

  Moreover, the air conditioning system of this invention installs a lighting fixture in the lower part of the suction inlet of the center part of a ceiling panel, and can conceal a system suction inlet by this.

  The air conditioning system of the present invention can efficiently control the temperature of the ceiling panel by installing an air conditioner having a centrifugal blower at the center of the ceiling panel, which is energy saving and comfortable for the occupant. An improvement can be brought about.

  In the first invention, a space is provided inside the ceiling panel, and an air conditioner including a centrifugal blower having a rotating shaft that is substantially orthogonal to the ceiling is installed in the center of the horizontal surface inside the ceiling panel. The air conditioner outlet is an air conditioner system that faces the outer periphery of the centrifugal blower, which can cool and heat the air conditioner from the air conditioner body to the end of the ceiling panel at the shortest distance, resulting in less heat loss. In addition to being an energy-saving system, the same heat radiation is given to any location on the concentric circle centered on the center of the room, so that multiple residents can get the same comfort in living and dining areas. Can do.

  In the second invention, in particular, the air inlet of the air conditioner of the air conditioner system according to the first invention is on the upper surface, whereby the air that has cooled and heated the ceiling panel needs to be air-conditioned on the side opposite to the living room. Since it flows to the suction port along the ceiling, there is less heat loss, so it is a more energy-saving system and because the resident is given the same heat radiation anywhere on the concentric circle centering on the center of the room. In living and dining, a plurality of residents can get the same comfort.

  In particular, the third invention has an air inlet on the side of the room in the center of the horizontal surface of the ceiling panel of the air conditioning system of the first invention, and an outlet on the side of the room on the outer periphery of the ceiling panel. The air inlet of the ceiling is common to the air inlet of the ceiling panel, and the air that has cooled and heated the ceiling flows into the room, so that not only radiation but also temperature control by convection is possible, and air conditioning by direct convection is also possible Since the blowing temperature can be brought closer to room temperature than when performing the above, it is possible to make it difficult for residents to feel uncomfortable feelings such as a draft.

  In the fourth invention, in particular, the lighting fixture is installed at the lower part of the suction port at the center of the ceiling panel of the air conditioning system of the third invention, the system suction port can be concealed, and the aesthetics of the living room is improved. Can be achieved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a vertical sectional view of a room in which an air conditioning system according to a first embodiment of the present invention is installed. A space 7 is provided inside the ceiling panel 1 of the living room 6, and the air conditioner 3 is installed in the center of the horizontal plane of the space 7. The air conditioner 3 has a centrifugal blower 11 mounted on a motor 10 having a suction port 8 on the back surface (upper surface) of the ceiling and a shaft 9 so as to be orthogonal to the ceiling. In addition, an orifice 12 is provided on the upstream side of the suction of the centrifugal blower 11, a heat exchanger 13 is provided on the outer peripheral portion serving as a blow-out portion of the centrifugal blower 11, and an outlet 14 is provided on the downstream side of the heat exchanger 13. It is arranged in the entire circumferential direction of the machine 3.

  FIG. 2 is a top view of the air conditioning system according to the first embodiment of the present invention. As shown in FIG. 2, the air conditioner 3 is substantially at the center of the ceiling panel 1.

  About the air conditioning system comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. When the operation of the air conditioner 3 is started by an external signal, a cooled or heated refrigerant flows through the heat exchanger 13. When the centrifugal blower 11 starts to turn by the rotation of the motor 10, the air in the ceiling is sucked into the centrifugal blower 11 through the orifice 12 through the suction port 8 and cooled or passed through the heat exchanger 13 on the outer peripheral portion. The heated air is blown out from the blowout opening 14 along the surface of the ceiling panel on the room side. The blown-out air cools or heats the ceiling panel, reaches the end of the space 7, and is sucked again into the air inlet 8 of the air conditioner 3 through the back of the ceiling.

  As is clear from FIG. 2, the air conditioner 3 is in the center of the ceiling panel, and the blown air reaches the panel end through the shortest distance. Less cooling or heating the ceiling panel. For this reason, it is excellent in energy saving property.

  Moreover, the temperature of the ceiling surface has a substantially uniform temperature distribution on the same circumference starting from the center of the ceiling panel 1. For this reason, for example, when there is a table in the center of a living room or dining room and multiple residents are sitting around the table, the same heat radiation is given to all the residents, which is unfair. Can provide no comfortable thermal environment.

In addition, when considering workability, the conventional air conditioning system requires ducts and the like as an air flow path in addition to the ceiling panel, and the number of parts increases and the thickness of the ceiling portion increases. It is simple and has excellent workability and cost.
(Embodiment 2)
FIG. 3 shows a vertical sectional view of a room where an air conditioning system according to the second embodiment of the present invention is installed. A space 7 is provided inside the ceiling panel 1 of the living room 6, and the air conditioner 3 is installed in the center of the horizontal plane of the space 7. In the air conditioner 3, a centrifugal blower 11 is mounted on a motor 10 provided with a suction port 8 on the room surface (lower surface) of the ceiling panel and a shaft 9 so as to be orthogonal to the ceiling. In addition, an orifice 12 is provided on the upstream side of the suction of the centrifugal blower 11, a heat exchanger 13 is provided on the outer peripheral portion serving as a blow-out portion of the centrifugal blower 11, and an outlet 14 is provided on the downstream side of the heat exchanger 13. It is arranged in the entire circumferential direction of the machine 3. A suction port 8a common to the air conditioner 3 is provided in the room surface at the center of the ceiling panel 1, and a blowout port 14a to the room is provided in the room surface at the end of the ceiling panel.

  FIG. 4 is a view of the ceiling panel according to the second embodiment of the present invention as viewed from the lower surface, and a plurality of air inlets 8a are provided at the center of the ceiling panel, and a plurality of air outlets 14a are provided at the end of the ceiling panel. .

About the air conditioning system comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. When the operation of the air conditioner 3 is started by an external signal, a cooled or heated refrigerant flows through the heat exchanger 13. When the centrifugal blower 11 starts turning by the rotation of the motor 10, the air in the living room is sucked into the centrifugal blower 11 through the orifice 12 from the suction port 8a of the ceiling panel and the suction port 8 of the air conditioner, and the outer peripheral portion. The air cooled or heated via the heat exchanger 13 is blown out from the blowout port 14 along the room side surface of the ceiling panel. The blown air cools or heats the ceiling panel, reaches the end of the space 7, and the air flows from the outlet 14 a to the living room. Then, the air is sucked into the suction port 8a and the suction port 8 again through the living room.

  As is clear from FIG. 4, the air conditioner 3 is in the center of the ceiling panel, and the blown air reaches the panel end through the shortest distance. Less cooling or heating the ceiling panel. For this reason, it is excellent in energy saving property. Similarly to the first embodiment, the temperature of the ceiling surface has a substantially uniform temperature distribution on the same circumference starting from the central portion of the ceiling panel 1. For example, there is a table in the center of the living room or dining room, When the resident is sitting around the table, the same heat radiation is given to all the occupants, and a comfortable thermal environment without unfairness can be provided.

Moreover, even if the heat radiation is slightly weakened at the end of the living room, the air that has been air-conditioned flows from the air outlet 14a, which can be compensated. The wall surface 15 at the end of the living room is an outer wall, a door, a window, etc., and is easily affected by radiation from the outside environment. However, according to the embodiment of the present invention, air conditioning air flows through the end, so The influence from 15 can be relieved. The air blown out from the blowout port 14a is air after the ceiling panel is once cooled or heated, and is closer to room temperature than the air blown out directly from the air conditioner. Therefore, the resident is comfortable without feeling a significant draft by the blown air. If there is a resident who does not like the airflow, the air outlet 14a is brought closer to the wall surface 15 or the air outlet 14a is directed toward the wall surface 15 so that the air flow is attached to the wall surface 15 by the Coanda effect. In this case, the resident can receive comfortable heat radiation from the ceiling panel 1 and the wall surface 15 without feeling a feeling of airflow.
(Embodiment 3)
FIG. 5 shows a vertical sectional view of a room in which an air conditioning system according to the third embodiment of the present invention is installed. The same components as those in FIG. 3 are denoted by the same reference numerals and the description thereof is omitted. Here, a lighting fixture 16 is installed below the outlet 8a. The lighting fixture 16 is often installed at the center of the ceiling panel 1 in the living room or dining room.

  In the third embodiment, the suction port 8a is hidden by the lighting fixture 16 and cannot be seen from the room side. Therefore, the beauty of the room is not impaired.

  Such a lighting fixture 16 generally generates heat and affects the thermal environment of the living room. However, by installing the lighting fixture 16 in the vicinity of the suction port 8a, it is also possible to reduce the influence of the heat generation from the lighting fixture 16.

  As described above, since the air conditioning system according to the present invention forms a comfortable thermal environment by performing efficient heat radiation in a living room, not only the air conditioning system of a house but also the air conditioning system of an office, a store, etc. It can also be applied to applications.

The vertical sectional view of the room in which the air harmony system in Embodiment 1 of the present invention was installed 1 is a horizontal plan view of the air conditioning system according to Embodiment 1 of the present invention as viewed from above. Vertical sectional view of a room in which an air conditioning system according to Embodiment 2 of the present invention is installed Horizontal plan view of the ceiling panel according to the second embodiment of the present invention as seen from below Vertical sectional view of a room where an air conditioning system according to Embodiment 3 of the present invention is installed Vertical configuration diagram of a conventional air conditioning system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceiling panel 2 Air flow path 3 Air conditioner 4 Upstream side inlet 5 Downstream side outlet 6 Living room 7 Space 8, 8a Suction port 9 Axis 10 Motor 11 Centrifugal blower 12 Orifice 13 Heat exchanger 14, 14a Outlet 15 Wall 16 Lighting equipment 17 Refrigerant piping 18 Outdoor unit

Claims (4)

A space is provided inside the ceiling panel, and an air conditioner equipped with a centrifugal blower having a rotation axis substantially orthogonal to the ceiling is installed at the center of the horizontal surface inside the ceiling panel. Is an air conditioning system characterized by facing the outer peripheral direction of the centrifugal blower. The air conditioning system according to claim 1, wherein a suction port of the air conditioner is on an upper surface. There is a suction port on the side of the room in the center of the horizontal surface of the ceiling panel, and a blow-out port on the side of the room on the outer periphery of the ceiling panel. The air conditioning system according to claim 1. The air conditioning system according to claim 3, wherein a lighting fixture is installed at a lower portion of the suction port at the center of the ceiling panel.

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