JP5117927B2 - Air conditioner - Google Patents

Description

  The present invention includes a radiation member having a porous portion for supplying air into an air-conditioning target space, a circulation air flow path for circulating air in a space opposite to the air-conditioning target space with respect to the radiation member, and the circulation The present invention relates to an air conditioner provided with air blowing means for circulating and supplying air to an air flow path, and heat supply means for supplying heat to the air circulating in the circulating air flow path.

  Such an air conditioner supplies conditioned air that circulates in the circulating air flow path to the air-conditioning target space through the porous portion of the radiating member, thereby preventing the condensation of the radiating member while cooling and heating the air-conditioning target space. And radiant air conditioning for cooling and heating the air-conditioning target space by radiant heat from the radiating member.

  Conventionally, in this type of air conditioner, when the required load of the heat supply means is high, there is one that increases the amount of air supplied to the air-conditioned space through the porous portion of the radiating member (for example, Patent Document 1). reference.).

JP 09-047552 A

  In the conventional air conditioner, when the required load of the heat supply means is high, if the air volume supplied to the space to be air-conditioned through the porous portion of the radiating member is increased, the conditioned air is lowered through the porous portion of the radiating member. Because of the ventilation, the wind speed at the resident is excessive, which may cause discomfort. In particular, when cooling the air-conditioning target space, in addition to the conditioned air passing downward through the porous portion of the radiating member, the air cooled in the vicinity of the radiating member in the air-conditioning target space also falls, The movement of air in the air-conditioning target space is further increased, and there is a high risk of discomfort.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an air conditioner that can prevent discomfort when the required load of the heat supply means is high.

An air conditioner of the present invention includes a radiating member having a porous portion that supplies air into an air-conditioning target space, and a circulating air flow path that circulates air in a space opposite to the air-conditioning target space with respect to the radiating member; And a first air-cooling device provided with air blowing means for circulating and supplying air to the circulating air flow path, and heat supply means for supplying heat to the air circulating through the circulating air flow path. In the configuration, when the air blowing means is the maximum design load of the heat supply means, the air volume supplied to the air-conditioning target space through the porous portion of the radiation member does not cause condensation on the radiation member. The air volume is configured to be the minimum air volume, and the air volume supplied to the air-conditioning target space through the porous portion of the radiating member at the minimum design load of the heat supply means is the maximum air volume. It lies in the fact that is configured to

  As in this configuration, when the air blowing means has the maximum design load of the heat supply means, the air volume supplied to the air-conditioning target space is set to the minimum air volume that does not cause condensation on the radiation member. Even if the conditioned air is vented downward through the porous portion of the radiating member while preventing condensation on the radiating member, it is possible to prevent the occupant from having excessive wind speed and causing discomfort.

In addition, when the air blowing unit is configured to set the air volume to the maximum air volume when the design is the minimum load of the heat supply unit, the cooling member and the air The temperature difference of the air in the target space is reduced. For this reason, even if the air in the vicinity of the radiating member is not cooled and descends, the conditioned air passes through the porous portion of the radiating member downward with a maximum air volume. Therefore, it is possible to prevent the air-conditioning target space from being in a state of no wind and prevent discomfort even when the required load of the heat supply means is low.

The second characteristic configuration of the present invention is a radiating member having a porous portion for supplying air into the air-conditioning target space, and a circulating air flow for circulating air in a space opposite to the air-conditioning target space with respect to the radiating member. And a heat supply means for supplying heat to the air circulated through the circulation air flow path, and the air supply means for supplying the heat to the circulation air flow path. At the maximum design load of the supply means, the air volume supplied to the air-conditioning target space through the porous portion of the radiation member is configured to be the minimum air volume that does not cause condensation on the radiation member. , a control means for controlling the air volume of the blower means is provided, said control means, the air volume of air supplied to the air conditioning target space through the perforated portion of the radiating member on the basis of the increase in the load of the heat supply means Configured to decrease There to a certain point.

  Since the air volume of the air to be supplied is reduced based on the increase in the load of the heat supply means as in this configuration, the air volume of the air can be balanced with the descending air flow by the radiating member. Can be prevented.

The 3rd characteristic structure of this invention exists in the point which provided the illumination means in the space on the opposite side to the said air-conditioning object space.

  With this configuration, since the illumination means is provided in the space opposite to the air-conditioning target space, in addition to being able to exhibit the indirect lighting effect and the effect of rectifying, when cooling the air-conditioning target space, Long life can be achieved. In addition, when heating the air-conditioned space, it is easy to shorten the lighting rise time.

[First embodiment]
The air conditioner according to the present invention will be described below.
As shown in FIG. 1, the air conditioner according to the present invention is mainly used to air-condition an ambient area, and has air permeability as a radiating member that supplies air into the air-conditioning target space A. Circulatory air flow path 2 that circulates air to space B opposite to air-conditioning target space A with respect to cloth-shaped member 1 and air blow means D that circulates and supplies air to circulating air flow path 2 And a heat exchanger 4 as heat supply means for supplying cold to the air circulating in the circulating air flow path 2, and control means for controlling the air volume of the pressure fan 3. As a controller H.

  If demonstrating it concretely, the radiation apparatus 5 is installed in the opening part of the ceiling surface C which comprises the upper surface of the air-conditioning object space A. As shown in FIG. The radiation device 5 is configured by attaching the cloth-like member 1 to the lower surface of a rectangular parallelepiped box-like member 6 whose lower surface is opened, and is installed so that the cloth-like member 1 faces downward from the opening of the ceiling surface C. ing. One end of the duct 7 is connected to the upper surface or side surface of the radiation device 5, and the other end is connected to the side surface of the radiation device 5. In the middle of the duct 7, an indoor heat exchanger 4 a and a pressure fan 3 of the heat exchange device 4 are disposed. A blower fan 13 is disposed in the indoor heat exchanger 4a. The indoor heat exchanger 4a and the outdoor heat exchanger 4b of the heat exchange device 4 are connected by a heat medium flow path 4c. On the ceiling surface C, the mounting cover 9 is installed in a state of opening to the air-conditioning target space A, and a fluorescent lamp 8 as an illuminating means is accommodated in the mounting cover 9. Therefore, a porous portion is formed in the fiber gap in the cloth-like member 1. A circulating air flow path 2 is formed in the duct 7 and the radiation device 5 so that air is circulated in the space B on the opposite side to the air-conditioning target space A.

  Hereinafter, the flow of the air-conditioned air will be described. The air in the air-conditioning target space A is supplied to the space B on the opposite side of the air-conditioning target space A through an air intake port (not shown) formed in the mounting cover 9 of the ceiling surface C. Then, the air is supplied to the circulating air flow path 2 by the pressurized fan 3 of the duct 7 and is circulated through the circulating air flow path 2 by the blower fan 13. The air circulating in the circulating air flow path 2 is cooled by the indoor heat exchanger 4a of the heat exchange device 4, and part of the air passes through the porous portion of the cloth-like member 1 and flows downward into the air-conditioning target space A. Will be supplied.

  When the controller H has the maximum design load x 2 of the heat exchange device 4, the air volume y supplied to the air-conditioned space A through the porous portion of the cloth member 1 is condensed on the cloth member 1. The design of the heat exchange device 4 is the amount of air supplied to the air-conditioning space A through the porous portion of the cloth-like member 1 when the minimum air flow y1 that does not cause a heat generation and the minimum load x1 in the design of the heat exchange device 4 is set. The maximum air volume y2 of the air volume y in the load x between the upper minimum load x1 and the maximum load x2, and the air-conditioning target space through the porous portion of the cloth-like member 1 based on the increase in the load of the heat exchange device 4 The operations of the pressure fan 3 and the blower fan 13 are controlled so as to reduce the amount of air supplied to A.

  The relationship between the load of the heat exchange device 4 and the amount of air supplied to the air-conditioning target space A will be described in detail. As shown by the solid line a in FIG. The air volume supplied to A decreases linearly, or as shown by the one-dot chain line b in FIG. As shown by the dotted line c in FIG. 2, the air volume supplied to the air-conditioning target space A decreases with a downward convex curve as the load of the heat exchange device 4 increases. As indicated by a dashed line d, it is conceivable that the air volume supplied to the air-conditioning target space A decreases in a plurality of steps as the load of the heat exchange device 4 increases. Incidentally, in any of the lines a to d, there is a peak of the air volume of the air supplied to the air-conditioning target space A at the design minimum load of the heat exchange device 4.

  Thereby, when the pressurizing fan 3 and the blower fan 13 have the maximum design load of the heat exchanging device 4, the air volume supplied to the air-conditioning target space A through the porous portion of the cloth-like member 1 is cloth-like. Since the member 1 is configured to have a minimum air volume that does not cause condensation, heat is exchanged by passing the air downward through the porous portion of the cloth-like member 1 while preventing the condensation of the cloth-like member 1. When the required load of the device 4 is high, it is possible to prevent discomfort. In addition, when the pressure fan 3 and the blower fan 13 have the minimum design load of the heat exchange device 4, the air volume supplied to the air-conditioned space A through the porous portion of the cloth-like member 1 is the maximum air volume. Therefore, even if the temperature difference between the air in the cloth-like member 1 and the air-conditioning target space A is small and the air in the vicinity of the cloth-like member 1 is not cooled and descends, the cloth-like member 1 is porous. By avoiding the air-conditioning target space A from being in a state of almost no wind by ventilating with the maximum air volume downward through the section, it is possible to prevent discomfort even when the required load of the heat exchange device 4 is low. It can be done.

[Second Embodiment]
In this embodiment, only a configuration different from the configuration of the first embodiment will be described, and the description of the same configuration will be omitted.
The air conditioner according to the present invention will be described below.
As shown in FIG. 3, the casing 10 is installed on the ceiling surface C in a state where the casing 10 opens into the air-conditioning target space A, and the blower fan 11 is accommodated in the casing 10. The bypass channel 12 has one end connected to the upper surface of the casing 11 and the other end connected to the side surface of the radiation device 5. Thereby, the function of the personal air conditioning which ventilates separately in a resident's resident area can be provided by operating the ventilation fan 11 as needed.

[Another embodiment]
(1) In the above embodiment, when the controller H has the maximum design load x2 of the heat exchange device 4, the amount of air supplied to the air-conditioned space A through the porous portion of the cloth-like member 1 The configuration in which the minimum air volume y1 that does not cause dew condensation on the member 1 is illustrated, but the controller H may not be used. For example, the minimum air volume y1 may be set in advance by setting means, and the air volume supplied to the air-conditioning target space A may be maintained at the minimum air volume y1 regardless of the load of the heat exchange device 4.

(2) In the above embodiment, the mounting cover 9 is installed on the ceiling surface C constituting the upper surface of the air-conditioning target space A in a state where the lower part is opened, and the fluorescent lamp 8 as the illumination means is accommodated in the mounting cover 9. However, the present invention is not limited to such a configuration. For example, the fluorescent lamp 5 may be disposed in the space B opposite to the air-conditioning target space A. Specifically, a configuration in which the fluorescent lamp 5 is accommodated in the radiation device 5 is conceivable.

(3) In the above embodiment, the configuration in which the illuminating means is the fluorescent lamp 8 is exemplified, but the present invention is not limited to this, and may be, for example, an LED or an incandescent lamp.

(4) In the above embodiment, the heat exchanging device 4 as the heat supply means exemplifies the configuration in which the cold air is supplied to the air circulating in the circulating air flow path 2. Heat may be supplied to the air. Further, a heater as heat supply means may supply warm heat to the air circulating in the circulating air flow path 2.

(5) In the above embodiment, the configuration in which the radiating member is the cloth-like member 1 is exemplified. However, the configuration is not limited to such a configuration, and for example, the radiating member may be a punching metal or a metal mesh.

(6) In the said embodiment, the radiation apparatus 5 is installed in the opening part of the ceiling surface C which comprises the upper surface of the air conditioning object space A. FIG. The radiation device 5 is configured by attaching the cloth-like member 1 to the lower surface of a rectangular parallelepiped box-like member 6 whose lower surface is opened, and is installed so that the cloth-like member 1 faces downward from the opening of the ceiling surface C. ing. One end of the duct 7 is connected to the upper surface or side surface of the radiation device 5, and the other end is connected to the side surface of the radiation device 5. In the middle of the duct 7, an indoor heat exchanger 4 a and a pressure fan 3 of the heat exchange device 4 are disposed. A blower fan 13 is disposed in the indoor heat exchanger 4a. Although the circulating air flow path 2 is formed in the duct 7 and the radiation device 5 and air is circulated in the space B on the side opposite to the air-conditioning target space A, the duct 7 and the radiation device 5 are not provided. The cloth-like member 1 is installed in the opening of the ceiling surface C, and the indoor heat exchanger 4a, the pressure fan 3, and the blower fan 13 are disposed in the space B opposite to the air-conditioning target space A. The circulating air flow path 2 may be formed in the space B opposite to the space A.

(7) In the above-described embodiment, the configuration in which the radiation member is the cloth-like member 1 having air permeability is exemplified, but the cloth-like member 1 may further have a sterilization performance. In this case, if the air flow necessary for exhibiting the sterilization performance exceeds the minimum air flow that does not cause condensation on the cloth-like member 1, the air flow necessary for demonstrating the minimum air flow is demonstrated. You may set so that it may enlarge.

(8) In the above embodiment, the air in the air conditioning target space A is supplied to the space B on the opposite side of the air conditioning target space A through an air intake port (not shown) formed in the mounting cover 9 of the ceiling surface C. However, the air in the air conditioning target space A may be exhausted to the outside, and the external air may be supplied to the space B on the opposite side of the air conditioning target space A.

(9) In the said embodiment, the structure which the ventilation means D is the pressurization fan 3 arrange | positioned in the middle of the duct 7, and the ventilation fan 13 arrange | positioned in the indoor heat exchanger 4a is illustrated. However, the air blowing means D may be the pressure fan 3 disposed in the middle of the duct 7 and the blade-shaped throttle part.

Overall side view of air conditioner The figure which shows the relationship between the load of a heat supply means, and the air volume of the air supplied to the air-conditioning object space Overall side view of air conditioner in second embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radiation member 2 Circulating air flow path 4 Heat supply means 8 Illumination means A Space for air conditioning B Space on the opposite side to the air conditioning target space D Air blow means H Control means x1 Minimum load x2 Maximum load y1 Minimum airflow y2 Maximum airflow

Claims (3)

A radiation member having a porous portion for supplying air into the air-conditioning space;
A circulating air flow path for circulating air in a space opposite to the air-conditioning target space with respect to the radiation member;
Air blowing means for circulating and supplying air to the circulating air flow path;
A heat supply means for supplying heat to the air circulating in the circulation air flow path,
When the air blowing means is the maximum design load of the heat supply means, the air volume supplied to the air-conditioning target space through the porous portion of the radiation member is the minimum air volume that does not cause condensation on the radiation member; And configured so that the air volume supplied to the air-conditioning target space through the porous portion of the radiating member is the maximum air volume at the minimum design load of the heat supply means. to Aru air conditioning system. A radiation member having a porous portion for supplying air into the air-conditioning space;
A circulating air flow path for circulating air in a space opposite to the air-conditioning target space with respect to the radiation member;
Air blowing means for circulating and supplying air to the circulating air flow path;
A heat supply means for supplying heat to the air circulating in the circulation air flow path,
When the air blowing means is the maximum design load of the heat supply means, the air volume supplied to the air-conditioning target space through the porous portion of the radiation member is the minimum air volume that does not cause condensation on the radiation member; Configured to
A control means for controlling the air volume of the air blowing means is provided,
An air conditioner configured to reduce the air volume of air supplied to the air-conditioning target space through the porous portion of the radiating member based on an increase in a load of the heat supply unit . The air conditioner according to claim 1 or 2, wherein an illumination unit is provided in a space opposite to the air conditioning target space .

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