JP4418070B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner suitable for use in buildings and the like.
[0002]
[Prior art]
Conventionally, as an air conditioner used for a building structure such as a building, an air conditioner for arranging a lower waist (hereinafter referred to as a perimeter) of a window portion of a building has been widely used. Such an air conditioner for arranging a perimeter includes a compressor room incorporating a compressor and the like, a heat exchange room for indoor air incorporating a heat exchanger and blower for indoor air, or a heat exchanger and blower for outdoor air. Each unit such as a heat exchange chamber for outside air is provided in a substantially rectangular parallelepiped casing so as to be adjacent to each other.
[0003]
An outline of such an air conditioner is shown in FIGS.
As shown in FIG. 9, 1 is an air conditioner (hereinafter referred to as an air conditioner), 2 is a window, 3 is an outer wall of the perimeter unit, 4 is a ceiling, 5 is a floor, 6 is a slab, 7 is a pillar, and 8 is a top. A perimeter top decorative plate 10 having a blow-out grill 9 for indoor air is a perimeter front decorative plate floating above the floor 5.
[0004]
The perimeter unit outer wall 3 is provided with an outside air intake port 3a and the taken-in outside air exhaust port 3b. The outside air intake port 3a is provided with an outside air intake duct 11, and the outside air exhaust port 3b is provided with outside air. An exhaust duct 12 is provided.
The air conditioner 1 is arranged in a space surrounded by the outer wall 3 of the perimeter unit, the floor 5, the top decorative plate 8 of the perimeter, and the front decorative plate 10 of the perimeter, and is partitioned by partition walls 16 and 17 in the casing 15. The chamber 1a, the outdoor air heat exchange chamber 1b, and the indoor air heat exchange chamber 1c are configured, and each chamber is connected to a refrigerant pipe (not shown) and electrical wiring (not shown).
[0005]
As shown in FIG. 10, a compressor 41 and an electric control unit 42 are disposed in the compressor chamber 1a.
As shown in FIG. 11, the outside air heat exchange chamber 1b is provided with the outside air heat exchanger 51 and the blowers 53 and 54 driven by the electric motor 52, and the casing 15 of the outside air heat exchange chamber 1b has a partition wall. 20, and an outside air inlet 15 a is formed in the back of the housing 15, and is connected to the outside air intake duct 11 to form an outside air introduction air passage.
In the indoor air heat exchange chamber 1c, as shown in FIG. 12, blowers 63 and 64 driven by an indoor air heat exchanger 61 and an electric motor 62, and a filter 65 are arranged. An air outlet 15b for indoor air is formed at the top of the housing 15 and connected to the air outlet grill 9 of the perimeter top decorative plate 8, and an indoor air inlet 15c is formed at the bottom of the housing 15.
Also, an outside air outlet 15d is formed in the back of the casing 15 of the indoor air heat exchange chamber 1c, and the outside air is introduced into the hole 17a formed in the partition wall 17 with the outside air heat exchange chamber 1b by the partition wall 21. A duct portion 22 is provided and connected to the outside air exhaust duct 12.
[0006]
With the above configuration, the compressor 41, the outside heat exchanger 51, and the indoor heat exchanger 61 constitute a heat pump refrigerant circulation circuit in cooperation with a four-way switching valve, a liquid receiver, an expansion valve, an accumulator, and the like (not shown). .
With this heat pump refrigerant circulation circuit, indoor air taken from the bottom in the indoor air heat exchange chamber 1c is radiated or absorbed by the indoor air heat exchanger 61, and the blower 63 and 64 is used to The air is blown from the blow-out grill 9 into the indoor space, the temperature of the indoor space is adjusted, the air is taken in by the blowers 53 and 54 from the outside air intake duct 11 in the outside air heat exchange chamber 1b, and the outside air heat exchanger 51 absorbs or dissipates heat. Then, the air is exhausted outside the building room through the outside air exhaust duct 12 to radiate or absorb heat from the circulating refrigerant.
[0007]
[Problems to be solved by the invention]
In the air conditioner configured as described above, when the room is a large space, when the temperature-adjusted air (cooled or heated indoor air) adjusted by the air conditioner 1 is supplied to the indoor space, the perimeter top decoration plate If the air is blown out from the 8 blow grills 9, sufficient temperature adjustment cannot be performed at a place away from the air conditioner 1, and it is necessary to prepare a powerful blower.
In order to solve such a problem, as disclosed in Japanese Patent No. 2580312, there is a method in which the indoor unit 80 is arranged in the ceiling space 4a and the outdoor unit 90 is arranged in the perimeter space as shown in FIG. However, there is a problem that the indoor unit 80 cannot be installed when the height of the ceiling space 4a is narrow.
[0008]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an air conditioner that can provide a uniform temperature control space even in a large indoor space, and suppresses an increase in size and output.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 includes a compressor chamber containing a pressure compressor and an electric control unit, a heat exchanger for indoor air for cooling or heating indoor air, and a blower for indoor air , An indoor air heat exchange chamber having a blowout port for blowing air energized by the indoor air blower into the indoor space, and an outdoor air heat exchanger that radiates or absorbs heat from the outside air intake duct and the outside air supplied and exhausted from the outside air exhaust duct And an outside air heat exchange chamber with a built-in air blower, and the compressor, the indoor air heat exchanger, and the outside air heat exchanger are connected to each other via a refrigerant to connect the room air and the outside air. In an air conditioner that performs heat exchange, the air conditioner and the ceiling space are provided to communicate with the ceiling space, and the indoor air suction grill provided on the ceiling and the ceiling space air that circulates the indoor air through the ceiling space Suction duct , Under the floor air outlet grill to provided on the floor blown underfloor air to the indoor space, it has a floor air outlet communicating through the underfloor space, the indoor and the indoor air to be recirculated from the ceiling space air intake duct An underfloor air blower chamber that mixes a part of the indoor air cooled or heated by a heat exchanger and distributes the air in the underfloor space is provided.
[0010]
By adopting such a configuration, it is possible to distribute at least a part of the temperature-controlled air in the under-floor space and to blow it out from the under-floor air blowing grill. Can be spread.
[0012]
In addition , indoor air can be sucked and recirculated from the ceiling, thereby increasing the circulation efficiency of the indoor air and improving the air conditioning efficiency of the indoor space.
[0014]
Moreover , the component for distributing temperature control air to underfloor space can be stored in the underfloor air fan room which is one independent unit. For this reason, temperature control air is distributed to the underfloor space by adding a new unit without complicating the configuration of other units, i.e., the compressor room, the indoor air heat exchange chamber, and the outside air heat exchange chamber. Can wind.
[0015]
According to a second aspect of the invention, an air conditioner according to claim 1, said underfloor air blower chamber, characterized in that provided adjacent to the indoor air heat exchange chamber.
[0016]
With such a configuration, the temperature-controlled air whose temperature is adjusted in the indoor air heat exchange chamber can be sent to the underfloor air blower chamber through the shortest path and blown out from the underfloor outlet. Therefore, the temperature change of the temperature-controlled air in the air conditioner can be suppressed to the minimum, and the temperature-controlled air can be distributed in the underfloor space.
[0018]
In the first aspect of the invention, the indoor air from the ceiling space air suction duct can be sucked and returned by the underfloor air blower, and from the outlet to the indoor space of the indoor air heat exchange chamber. A temperature difference can be generated between the temperature-controlled air blown out and the air blown out from the under-floor air blowing grill through the under-floor space.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an air conditioner according to the present invention will be described with reference to FIGS. 1 to 8.
As shown in FIG. 1, 100 is an indoor space, 101 is an air conditioner (hereinafter referred to as an air conditioner), 102 is a window, 103 is an outer wall of the perimeter unit, 104 is a ceiling, 104a is a ceiling space, and 104b is provided in a ceiling 104. 104c is a ceiling space air inlet provided in the ceiling 104, 105 is a floor, 105a is an underfloor space, 105b is an underfloor air outlet grill provided in the floor 105, 106 is a slab, and 107 is a pillar. , 108 is a perimeter top decorative plate having indoor air blowing grill 109 and suction grill 109a at the top, 110 is a perimeter front decorative plate, and 113 is a ceiling space air suction duct.
As shown in FIGS. 6 and 7, the perimeter unit outer wall 103 is provided with an outside air intake port 103a and an intake port 103b for the introduced outside air, and an outside air intake duct 111 is formed in the outside air intake port 103a. In addition, an outside air exhaust duct 112 is disposed at the outside air exhaust port 103b.
[0020]
As shown in FIGS. 1 and 2, the air conditioner 101 is disposed in a space surrounded by a perimeter unit outer wall 103, a slab 106, a perimeter top decorative plate 108, and a perimeter front decorative plate 110. As shown in FIGS. 2 to 4, the inside of the casing 115 is divided by partition walls 116, 117, and 118, and the compressor chamber 101a, the outdoor air heat exchange chamber 101b, the indoor air heat exchange chamber 101c, and the underfloor air blower chamber 101d. Each chamber is connected by electrical wiring (not shown), and each of the compressor chamber 101a, the outdoor air heat exchange chamber 101b, and the indoor air heat exchange chamber 101c is a refrigerant pipe (see FIG. (Not shown).
[0021]
As shown in FIG. 5, a compressor 141 and an electric control unit 142 are arranged in the compressor chamber 101a.
In the outside air heat exchange chamber 101b, as shown in FIG. 6, outside air fans 153 and 154 driven by an outside air heat exchanger 151 and an electric motor 152 are arranged. An outside air outlet 115a is formed at the back of the casing 115 of the outside air heat exchange chamber 101b and connected to the outside air exhaust duct 112.
[0022]
As shown in FIG. 7, indoor air heat exchangers 161 and indoor air blowers 163 and 164 driven by an electric motor 162 and a filter 165 are arranged in the indoor air heat exchange chamber 101c. At the top of the casing 115 of the indoor air heat exchange chamber 101c, an indoor air outlet (air outlet to the indoor space) 115b is formed and connected to the outlet grill 109 of the perimeter top decorative plate 108 to connect the indoor space 100. It forms a ventilating passage for the temperature-controlled air to the air.
In addition, the indoor air heat exchange chamber 101 c is formed with a partition wall 117, 118, 120 and a bottom member 121, which is provided with a suction port 115 d for taking in outside air at the back of the housing 115 and connected to the outside air intake duct 111. An outside air introduction duct portion 122 is provided, and an outside air intake ventilation path connected to the outside air heat exchange chamber 101b is formed by a hole 117a formed in the lower portion of the partition wall 117.
In addition, a bottom duct 121 formed by a bottom member 121, a bottom portion of the casing 115, and partition walls 117 and 118 is provided at the lower portion of the indoor air heat exchange chamber 101c, and a hole 118b is provided in the partition wall 118 for taking in indoor air. The bottom member is provided with a suction port 121b.
[0023]
As shown in FIG. 8, an underfloor air blower 173 driven by an electric motor 172 is disposed in the underfloor air blower chamber 101d, and the ceiling space air suction duct 113 is inserted into a hole 115e formed in the side surface of the housing 115. Are connected to form a ventilation path with the ceiling space.
A hole 118a is formed in the upper part of the partition wall 118 with the indoor air heat exchange chamber 101c so that temperature-controlled air whose temperature is adjusted by the indoor air heat exchanger 161 can be taken into the underfloor air fan chamber 101d. Along with the return air from the ceiling space 104a, the underfloor air blower 173 distributes air to the underfloor space 105a through the underfloor outlet 115f drilled in the lower portion of the casing 115.
In addition, an indoor air suction port 115c is formed in the upper part of the casing 115 of the underfloor air blower chamber 101d and connected to the suction grille 109a of the perimeter top decorative plate 108. The bottom duct provided at the bottom of the casing 115 is formed with a hole 118b formed in the lower portion of the partition wall 118 and a suction port 121b provided in the bottom member 121 of the indoor air heat exchange chamber 101c. 123, a return air passage for indoor air is formed.
[0024]
With the above configuration, the compressor 141, the outdoor air heat exchanger 151, and the indoor heat exchanger 161 constitute a heat pump refrigerant circulation circuit in cooperation with a four-way switching valve, a liquid receiver, an expansion valve, an accumulator, and the like (not shown). .
[0025]
The refrigerant compressed by the compressor 141 arranged in the compressor chamber 101a is sucked into the suction grill 109a of the perimeter top decorative plate 108 in the indoor air heat exchanger 161 arranged in the indoor air heat exchange chamber 101c. The suction port 115c drilled in the upper part of the casing 115 of the underfloor air fan chamber 101d, the partition wall 124 and the partition wall 118 in the underfloor air fan chamber 101d, the duct 125 formed on the side surface of the casing 115, and the partition wall 118 Heat exchange is performed for the indoor air returned through the hole 118b drilled in the lower part, the bottom duct 123 provided in the bottom part of the casing 115, and the suction port 121b provided in the lower part of the indoor air heat exchange chamber 101c. The temperature is lowered and the temperature-controlled air is raised during heating.
[0026]
This temperature-controlled air is energized by the indoor air blowers 163 and 164 driven by the electric motor 162, and is blown into the indoor space 100 from the blow grill 109 of the perimeter top decorative plate 108 connected to the indoor air blow opening 115b. Is done.
The temperature-controlled air is also distributed to the underfloor air blower chamber 101 d through a hole 118 a formed in the upper part of the partition wall 118, and is driven by the electric motor 172 together with the return air from the ceiling space air suction duct 113. The underfloor air blower 173 is energized and blown into the underfloor space 105a through the underfloor outlet 115f formed in the lower portion of the casing 115.
The “mixed air of the temperature-controlled air from the indoor air heat exchange chamber 101 c and the return air from the ceiling space 104 a” fed to the underfloor space 105 a is sent from the underfloor air blow grill 105 b provided in the floor 105 to the indoor space 100. To the ceiling space 104 a from the indoor air suction grill 104 b provided on the ceiling 104 together with a part of the temperature-controlled air from the blow-out grill 109 provided on the top of the perimeter top decorative plate 108 to the indoor space 100. The air is sucked and returned to the air conditioner 101 through the ceiling space air suction port 104c through the ceiling space air suction duct 113 or through the suction grille 109a provided on the top of the perimeter top decorative plate 108.
[0027]
On the other hand, in the outside air heat exchange chamber 101b, when the air conditioner 101 is in operation, the outside air is blown into the outside air inlet 103a formed in the perimeter unit outer wall 103 by the outside air blowers 153 and 154 driven by the electric motor 152. The partition wall 117 is connected to the outside air intake duct 111 via the “outside air intake inlet 115d provided on the back of the casing 115, the partition walls 117, 118, 120 and the bottom member 121”. The air is sucked through a hole 117a drilled in the lower part of the tube, heat is exchanged by an outside air heat exchanger 151, and is connected to an outside air outlet 115a provided at the back of the casing 115 to be drilled in the outer wall 103 of the perimeter unit. The outside air is exhausted outside the building room via the outside air exhaust duct 112 arranged in the outside air outlet 103b.
[0028]
In the air conditioner according to the present embodiment, the air conditioner 101 is provided with an underfloor air blower chamber 101d in addition to the compressor chamber 101a, the outdoor air heat exchange chamber 101b, and the indoor air heat exchange chamber 101c. A part of the conditioned air is blown from the underfloor outlet 115f to the underfloor space 105a and distributed to the indoor space 100 from an underfloor air blow grill 105b provided on the floor 105. Therefore, the temperature-controlled air can be distributed to a place away from the air conditioner 101 as compared with the case where the temperature of the indoor space 100 is controlled by blowing air from only the indoor air outlet 115b of the perimeter unit. Even when the indoor space 100 is large, a relatively uniform temperature control space can be provided.
Further, since the components for distributing the temperature-controlled air to the underfloor space 105a are accommodated in the underfloor air fan chamber 101d, which is an independent unit, the compressor chamber 101a, the heat exchange for the outside air By adding a new unit to the existing unit without complicating the configuration of the chamber 101b, the indoor air heat exchange chamber 101c, etc., a part of the temperature-controlled air can be distributed to the underfloor space 105a. . Therefore, the air conditioner 101 can be easily repaired and maintained, and it is not necessary to increase the output of the indoor air blowers 163, 164, and the like.
Furthermore, since the underfloor air blower chamber 101d is provided adjacent to the indoor air heat exchange chamber 101c, the temperature-controlled air whose temperature is adjusted in the indoor air heat exchange chamber 101c is passed through the hole 118a. The underfloor air fan chamber 101d can be taken in the shortest path. Therefore, the temperature change of the temperature-controlled air blown out from the underfloor outlet 115f in the air conditioner 101 can be suppressed to the minimum, and the temperature-controlled air can be distributed to the underfloor space 105a, and the temperature-controlled air can be distributed to the underfloor space 105a. The temperature of the temperature-controlled air to be blown can be adjusted and controlled accurately
[0029]
Further, a ceiling space air suction duct 113 that communicates the underfloor air fan chamber 101d and the ceiling space 104a is provided, and the indoor air suction grille 104b provided on the ceiling 104, the ceiling space 104a, and the ceiling space air suction duct 113 are used. The air is recirculated to the underfloor air fan chamber 101d. For this reason, even when the ceiling space 104a is narrow, the circulation efficiency of the indoor air can be increased, and even when the indoor space 100 is large, the air conditioning efficiency of the indoor space 100 can be further increased and a more uniform temperature control space can be provided. .
Furthermore, the temperature-controlled air taken in from the indoor air heat exchange chamber 101c and the indoor air recirculated through the ceiling space air suction duct 113 are merged in the underfloor air fan chamber 101d. The “mixed air of the temperature-controlled air from the air heat exchange chamber 101c and the return air from the ceiling space 104a” is distributed from the underfloor outlet 115f to the underfloor space 105a. Therefore, a temperature difference can be generated between the temperature-controlled air blown from the indoor air outlet 115b and the air blown from the underfloor air blowing grill 105b via the underfloor space 105a. At 100, for example, head cold foot air conditioning can be enabled.
[0030]
【The invention's effect】
As described above, in the air conditioner according to the present invention, at least a part of the cooled or heated indoor air is distributed to the underfloor space, or the indoor air is circulated from the ceiling space. Since it is configured, it is possible to provide an air conditioner that can provide a uniform temperature control space even in a large indoor space, and can be economically operated and reduced in noise by suppressing increase in size and output. it can.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of an air conditioner according to the present invention, and is a partially cutaway perspective view of an air conditioner in an installed state.
FIG. 2 is a front view of the air conditioner shown in FIG.
FIG. 3 is a plan view of the air conditioner shown in FIG.
4 is a cross-sectional view taken along the line AA in FIG. 2;
FIG. 5 is a cross-sectional view taken along line BB in FIG. 2;
6 is a cross-sectional view taken along the line CC in FIG. 2;
7 is a cross-sectional view taken along the line DD in FIG. 2;
8 is a cross-sectional view taken along the line EE of FIG.
FIG. 9 is a view showing an example of a conventional air conditioner, and is a partially cutaway perspective view of the air conditioner in an installed state.
10 is a partial cross-sectional view of the air conditioner of FIG. 9 and shows a configuration of a compressor chamber.
11 is a partial cross-sectional view of the air conditioner of FIG. 9 and shows the configuration of an outside air heat exchange chamber.
12 is a partial cross-sectional view of the air conditioner of FIG. 9, showing a configuration of a heat exchange chamber for indoor air.
FIG. 13 is a view showing another example of a conventional air conditioner, and is a partially cutaway perspective view of the air conditioner in an installed state.
[Explanation of symbols]
100 indoor space 101 air conditioner (air conditioner)
101a Compressor room 101b Heat exchange room for outdoor air 101c Heat exchange room for indoor air 101d Blower room for underfloor air 104 Ceiling 104a Ceiling space 104b Indoor air suction grill 105 Floor 105a Underfloor space 105b Underfloor air blowout grill 111 Outside air intake duct 112 Outside air exhaust Duct 113 Ceiling space air suction duct 115b Air outlet for indoor air (air outlet to indoor space)
115f Underfloor outlet 141 Compressor 142 Electric control unit 151 Heat exchanger for outdoor air 153, 154 Air blower for outdoor air 161 Heat exchanger for indoor air 163, 164 Air blower for indoor air 173 Blower

Claims (2)

A compressor room containing a compressor and an electric control unit;
A heat for indoor air having a blowout port that blows air energized by the indoor air blower into the indoor space , with a built-in indoor air heat exchanger for cooling or heating the indoor air and an indoor air blower An exchange room,
An outside air heat exchanger that radiates or absorbs heat by outside air supplied and exhausted from the outside air intake duct and outside air exhaust duct, and an outside air heat exchange chamber that incorporates an outside air blower,
In the air conditioner that connects the compressor, the indoor air heat exchanger, and the outdoor air heat exchanger to each other via a refrigerant to exchange heat between indoor air and outdoor air,
An indoor air suction grille provided on the ceiling to communicate with the air conditioner and the ceiling space; and a ceiling space air suction duct for circulating the indoor air through the ceiling space;
The indoor air that is provided on the floor and blows off the underfloor air to the indoor space has an underfloor air outlet that communicates via the underfloor space, and flows back from the ceiling space air suction duct and the indoor heat. An air conditioner comprising: an underfloor air blower chamber that mixes a part of indoor air cooled or heated by an exchanger and distributes air in the underfloor space . The underfloor air blower chamber, an air conditioner according to claim 1, characterized in that provided adjacent to the indoor air heat exchange chamber.

Images