JPS61295440A - Air-conditioning system for residence - Google Patents

Abstract

PURPOSE:To reduce cost of installation and effect cooling and heating of respective rooms efficiently by a method wherein an indoor side heat exchanger is installed in a non-living chamber zone and the air sending port and the air suction port of the indoor side heat exchanger are connected by the air sending and suction ducts of a plurality of living rooms. CONSTITUTION:Suction and exhaust units 13 are provided above respective doors 12 of opposing living rooms 8, 10 and the opposing living rooms 9, 11. A plenum chamber (indoor side heat exchanger) 15 is provided in the rear side of ceiling of passages 2, 7 between the suction and exhaust units 13, 13 opposing so as to pinch the passages 2, 7 while the prenum chamber 15 is connected to an outdoor side heat exchanger 18 in the living room 3 of first floor through a connecting pipe 19. Air sending ports 22, 23 are connected to the discharging ports 33 of respective suction and exhausting units 13 of the plenum chamber 15 through air sending ducts 40, 41 while air suction ports 24, 25 are connected to the air suction port 32 of respective suction and exhaust units 13 through air suction ducts 42, 43. Thus, the air conditioning of a plurality of living chambers are effected by one set of indoor side heat exchanger, therefore, the cost of installation may be reduced and efficient air-conditioning operation may be effected.

Description

[Detailed Description of the Invention] "Field of Industrial Application" The present invention relates to a residential air conditioning system that can be installed efficiently and inexpensively by installing an indoor heat exchanger in a non-occupied zone. be.

``Conventional technology'' For a time, the mainstream method for heating and cooling all rooms in a house was to install a heat source at a desired location in the house, and then transfer the heat from this heat source to the indoor side of a fan coil unit installed in each room. A central air conditioning system that is connected by ducts to convey heat to a heat exchanger. However,
This type of central air conditioning system has the disadvantage of requiring long piping to be installed inside the house to transport hot air, hot and cold water, etc., which requires large-scale piping construction and increases the initial cost. This was an uneconomical system because it air-conditioned even unoccupied rooms.

Therefore, in recent years, a heating and cooling system for individual rooms has been provided in which an outdoor heat exchanger is connected to an indoor heat exchanger provided in each room.

"Problems to be Solved by the Invention" This type of heating and cooling system for individual rooms can freely control the heating and cooling of each room by adjusting the output of each indoor heat exchanger as necessary. However, since it is necessary to provide an indoor heat exchanger for each room, there is a problem in that the equipment cost is considerably high. In addition, each indoor heat exchanger used in the above-mentioned individual room heating and cooling system needs to be installed with a capacity that is slightly larger than the weight appropriate to the room so that each room can be heated and cooled with plenty of room. , this means that when converted to the capacity of the entire house, equipment with a much larger capacity than is necessary for the house will be installed, making the contracted power of the house unnecessarily large and the dedicated capacity for the heating and cooling system. There were problems such as the need to install an electric circuit, making it difficult to achieve heating and cooling in all rooms.

In addition, as a whole room heating and cooling system that is popular in other countries, a heat source and a large blower are installed in a machine room located in a basement, etc., and hot or cold air is blown into each room through ducts that are piped to all rooms in the house. A so-called air-handling system for air-conditioning and heating all rooms is known, but with this system, not only is it difficult to precisely control the temperature in each room, but it is also difficult to blow air to all rooms. The large blower used consumes a large amount of electricity and is uneconomical.
Due to the large noise of the blower, there was a problem in that it was not suitable for use in general households in Japan.

``Object of the Invention'' The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an air conditioning system that has low equipment cost and is capable of efficiently heating and cooling each room.

"Means for Solving the Problems" In order to solve the above-mentioned problems, the present invention provides an indoor heat exchanger that is connected to an outdoor heat exchanger, is connected to a blower, and has an air outlet and an air intake. in the attic of the hallway or hall,
In some cases, it is installed in a non-occupied zone of the house, such as under the floor, and each of the ventilation ports and intake ports of this indoor heat exchanger is connected to an air supply duct and an intake duct to each of the plurality of residential rooms adjacent to the indoor heat exchanger. This was communicated by.

``Function'' A single indoor heat exchanger can cool and heat multiple rooms, and the distance between the ducts connecting the indoor heat exchanger and each room can be minimized, reducing equipment costs. Workability is also improved, and all areas where leaks are a problem, such as drain piping and refrigerant piping, can be installed in a non-occupied zone.

Embodiment FIGS. 1 to 4 show an example in which an air conditioning system according to an embodiment of the present invention is applied to a two-story house A.

In Figure 1, house A has a total of four living rooms, two on each side, with a corridor (non-living zone) 2 in between on the first floor.
．． In addition, there are four living rooms 8°9.10.1t on the second floor, two on each side across the corridor (non-living zone) 7, and a living room 3.5 facing each other across the corridor 2. , the entrances and exits of living rooms 4.6 facing each other across the hallway 2, the entrances and exits of living rooms S and tO facing each other across the hallway 7, and living rooms 9.11 facing each other across the hallway 7. A door 12 is installed at each entrance and exit, and a transom-shaped intake and exhaust unit 13 is installed above the six doors 12.

A plenum chamber (indoor heat exchanger) 15 is located above the intake/exhaust units 13.13 facing each other across the hallway 2.7, and in the ceiling of each hallway 2.7.
is installed, and the plenum chamber 15 in the attic on the first floor is 1
It is connected to the outdoor heat exchanger 16 installed under the floor of the hallway 2 on the first floor by connecting pipes 17, 17, and the plenum chamber 15 in the attic on the second floor is installed under the floor of the living room 3 on the first floor. It is connected to the outdoor heat exchanger ■8 by a connecting pipe 19.19. Note that these outdoor heat exchangers 16
．． 18, the capacity of each can be freely switched to three levels, ``Strong,''``Medium,'' and ``Weak,'' depending on the high-speed operation, medium-speed operation, and low-speed operation of the compressor installed inside. ing.

As shown in FIG. 2, each plenum chamber 15 includes a casing 20 having a polygonal shape in plan view, and
The main components are a heat exchanger 2]A provided inside the air conditioner 0 and an air blower 121B. Air blow holes 22 and 23 are formed on one side of the casing 20, and air intake holes 24 and 25 are formed on the other side. The heat exchanger 21A is a heat medium transfer connecting pipe 1 connected to the outdoor heat exchanger 16.
7 is connected to a heat medium transfer connecting pipe I9 connected to the outdoor heat exchanger 18.

The blower 21B is inside the casing 20,
It is provided between the heat exchanger 21A and the air intake port 24.25, and has two fans 27.28. In addition, the fan 28 takes in air from the air inlet 25 and blows the air to the outside through the heat exchanger 21A and the air outlet 23. ","During"
It can be freely switched between 3 levels: , ``weak''.

As shown in FIGS. 2 to 4, the intake/exhaust unit 13 has its back section extending toward the hallway 2 (or hallway 7) above the door 12 of each room, and its front section extending toward the hallway 2 (or hallway 7). It is a box-shaped item that is exposed in the living room and installed with its upper part exposed in the ceiling of hallway 2 (or the ceiling of hallway 7).

This intake/exhaust unit 13 consists of a hollow box body 30 and a partition body 31 provided inside this box body 30. An intake hole 32 and a discharge hole 33 that are open to each other are formed.

The partition body 31 has a U-shape in front consisting of a bottom plate 34 and side plates 35 and 35, and is provided so as to be movable in the left and right direction along a rail member of the illustrated path installed in parallel inside the box body 30. In the partition body 31, when the bottom plate 34 is positioned below the intake hole 32 as shown in FIG. 3, one side plate 35 is located between the intake hole 32 and the discharge hole 33. The inside of the box body 30 is defined as an intake zone 36,
The bottom plate 34 is divided into an exhaust zone 37 and a discharge hole 3.
3 as shown in FIG. 4, the other side plate 35 is located between the intake hole 32 and the discharge hole 33, thereby separating the inside of the box 30 from the intake zone 38 and the exhaust zone 38. It is divided into zone 39. Note that the partition body 31 may have a rectangular frame shape.

Each intake and exhaust zone 3 is provided on the indoor side surface of the box body 30.
6, 37, 38, and 39 are formed to communicate with the interior of the room, and a garari 50 is attached to each of the through holes. This gap 50 allows the air exhausted from the exhaust zone 37 (or exhaust zone 39) to pass through the intake zone 36 (or
Alternatively, the air blowing direction is adjusted to ensure that the air in the living room is drawn into the intake zone 36, 37 so as not to cause a short circuit phenomenon in which the air directly flows into the intake zone 37).

Note that inside the box body 30, the partition body 31
It can be installed in two ways: the position shown in the figure and the position shown in Fig. When installing the intake/exhaust unit 13 in '11, position the partition 31 as shown in Figure 3, and when installing the intake/exhaust unit 13 in living room 3.4.8.9, as shown in Figure 4. By positioning the partition body 31 as shown in FIG.
This is to enable installation.

Further, in the plenum chamber 15, the air outlet 22
is the intake and exhaust unit 1 on one side of the plenum chamber 15.
The air outlet 23 is connected to the outlet hole 33 of the intake/exhaust unit 13 on the other side by an air duct 40, and the air outlet 23 is connected to the outlet hole 33 of the intake/exhaust unit 13 on the other side by an air duct 41. Intake hole 3 of side intake/exhaust unit 13
2 by an intake duct 42, and the intake port 25 is connected to the intake hole 32 of the intake/exhaust unit 13 on the other side by an intake duct 43.

Further, an opening/closing damper 45 is provided inside each intake hole 32 and inside each discharge hole 33 of each intake/exhaust unit 13, and the opening/closing damper 45 is provided on the back side of each intake/exhaust unit 13. Opening/closing motors 46 for opening and closing the intake holes 32 and the discharge holes 33, respectively, are attached, and these opening/closing motors 46 are operated by operating switches on the illustrated paths provided on the indoor side of the intake/exhaust unit 13. Then, use this operation switch to open the air intake hole 3 from the indoor side.
2 and the discharge port 33 can be opened and closed.

Next, the operation of the heating and cooling system configured as described above will be explained.

Living room 3.4.5.6 or living room 8, 9, 10.1 t
When the need for air conditioning arises, the outdoor heat exchanger 16 (or outdoor heat exchanger 18) and plenum chamber 15 are activated, and the air intake and exhaust unit 13 of the room that requires air conditioning is operated. The intake hole 32 and the discharge hole 3 are opened by a switch.
3 and open. With this operation, the plenum chamber 15 uses its blower 21B to draw air inside the living room into the chassis 20 through the intake hole 32 and the intake duct 43 (or the intake duct 42), and sends it to the heat exchanger 21A.
After heat exchange, air supply duct 41 (or air supply duct 40)
The air is returned to the living room through the discharge hole 33, and the living room is air-conditioned. In addition, during this air conditioning, if there is a living room that does not require air conditioning, the opening/closing damper 45 may be closed by the operation switch of the intake/exhaust unit 13 of the living room to close the intake hole 32 and the discharge hole 33. This operation eliminates the need to air-condition rooms that do not require air-conditioning, making it possible to perform economical air-conditioning operations.

In addition, in the following, when the air conditioning target is living room 3 and living room 5, and when the temperature of living room 3 is 15 degrees Celsius and the temperature of living room 5 is 10 degrees Celsius during the cold season, heating of living room 3.5 An example of the operation of this embodiment will be explained based on FIG. 5.

In this case, first, at the beginning of operation, the plenum chamber 15
The air blowing capacity of the blower 21B is set to "strong", the rotation speed of the compressor of the outdoor heat exchanger 16 is set to high speed, and each opening/closing damper 45° 45 of the living room 3 is fully opened, and each opening/closing damper of the living room 5 is operated. 45, 45 are fully opened. As a result of this operation, the temperature in living room 3.5 rises as shown by the solid line and dotted line in Figure 5, and the temperature in living room 3 reaches approximately 20°C, and the temperature in living room 5 reaches approximately 15°C. , the blowing capacity of the blower 21B of the plenum chamber 15 is set to "medium", the rotational speed of the compressor of the outdoor heat exchanger 16 is set to medium speed, and each opening/closing damper 45° 45 of the living room 3 is set to a half-open state, Each opening/closing damper 45° 45 in the living room 5 is fully opened. In this state, heating is applied to living room 3 to the extent that the room temperature is maintained, and while the room temperature of living room 3 is maintained, heating is applied to living room 5 to raise the room temperature, and the temperature of living room 5 is It rises as shown by the dotted line in Figure 5. Next, living room 5
When the temperature of room 3.5 reaches approximately 20°C, the air blowing capacity of the blower 21B of the plenum chamber 15 is set to "weak" and the rotation speed of the compressor of the outdoor heat exchanger 16 is set to low speed. Each opening/closing damper 45... is fully opened. By this operation, both living rooms 3.5 are heated to a state where the room temperature is maintained. Note that, of course, if there is no need for air conditioning, each opening/closing damper 45 of the room may be closed.

If you heat rooms 3 and 5 using the above operations,
After the temperature in living room 3 reaches 20°C, this living room 3
Since it is possible to prevent heat from being sent to the living room 3 other than the amount of heat necessary to maintain the temperature of the plenum chamber 15, heat can be supplied to each living room 3. The outdoor heat exchanger 16 can be operated efficiently without energy loss.

The detailed temperature control described above can be achieved by connecting the blower 21B, the outdoor heat exchanger 16, and the opening/closing motor 46 to a required control device, and instructing this control device to perform operating procedures with little energy loss according to the temperature of each room. Let me remember,
This control device can automatically switch the blowing capacity of the blower 21B, switch the rotation speed of the compressor of the outdoor heat exchanger 16, 18, and control the open state of each opening/closing damper 45. It can be done in a specific manner. Note that the blower 21B and the outdoor heat exchanger 16.18 may have a configuration in which the output can be adjusted steplessly. , enabling even more precise air conditioning operations.

Furthermore, since the plenum chamber 15 is installed in the ceiling of the hallway 2.7, the ceiling height of the hallway 2.7 may be slightly lower due to the thickness of the plenum chamber 15; Decrease in ceiling height of corridor 2,
Since Zone 7 is a non-residential zone, there is little impact on the lives of residents.

In this regard, if a plenum chamber is installed in the attic of a living room, the reduction in ceiling height is not preferable because it gives a feeling of pressure to the occupants.

Furthermore, in the air conditioning system having the above configuration, it is preferable to install the air supply duct 40.41 and the intake duct 42.43 from the ceiling of the hallway 2.7 to the top of the door 12 of the living room. Compared to conventional central air conditioning systems, which require duct piping throughout the entire house, the piping distance is shorter, making piping construction such as insulation easier. In addition, a plenum chamber 1 is installed in a non-occupied zone such as the attic.
When installing plenum chamber 15 in the living room, it is possible to install all the areas where leaks such as drain pipes and refrigerant pipes are a problem in the non-occupied zone, and it is easier to discharge drain water than when installing the plenum chamber 15 in the living room. It is easy to process, has an advantageous configuration in terms of maintenance, and because the installation location is far from the living room, the noise from the blower 21B does not bother the living room. In this regard, in conventional systems that accommodate individual rooms, if a plenum chamber is installed in the living room, there is a risk that drain water will be discharged into the room.
Such a problem does not occur when the above configuration is adopted.

In addition, in the above-described configuration, if the capacity of the plenum chamber 15 is sufficiently large, it may be connected to three or more living rooms. This means that in houses with excellent insulation treatment in recent years, the heating load for an 8 tatami room is 1 OOOKca
Considering that it is about 1/H, 2500~30
This is because if a plenum chamber 15 with a heating capacity of 00 Kcal/I-(about Ba,
This makes it possible to connect to three or more living rooms. The blower 21B may be installed outside the plenum chamber 15, such as inside the air supply ducts 40, 41, inside the intake ducts +-42, 43, or inside the intake/exhaust unit 13. Considering from the perspective, the intake/exhaust unit 13
It is preferable not to provide the blower 21B. Furthermore, since the intake/exhaust unit 13 does not have any special device inside, it can easily be made thinner. Furthermore, the installation location of the intake/exhaust unit 13 is not limited to above the door 12, but may also be installed inside the wall, or inside the plenum chamber 15.
The installation location may be in addition to the ceiling in hallway 2.7, the ceiling in the entryway or pole, or under the floor.

On the other hand, inside the plenum chamber 15, an opening/closing damper may be provided at each of the opening of the air outlet 22.23 and the opening of the air intake port 24.25.
A switching damper that closes either the air outlet 22 or the air outlet 23 is provided between the air intake ports 24 and 25.
By configuring a switching damper that closes either one of the intake ports 24 and 25 in the part between them, air from a living room that does not require air conditioning is prevented from being drawn into the plenum chamber 15, and the living room that does not require air conditioning is It is also possible to prevent negative pressure and prevent air from being conveyed to the duct on the living room side where air conditioning is not required, thereby reducing energy loss.

``Effects of the Invention'' As explained hereinafter, the present invention provides an indoor heat exchanger that is connected to an outdoor heat exchanger, is connected to a blower, and has an air outlet and an air intake, and is installed in a non-occupied zone. , since each of the blower lower and intake ports of the indoor heat exchanger is connected to each of the plurality of living rooms adjacent to the indoor heat exchanger through an air supply duct and an air intake duct, one indoor heat exchanger is used. It is possible to air-condition multiple living rooms, reduce equipment costs, and achieve efficient air-conditioning operation. In addition, since the indoor heat exchanger is installed in a non-occupied zone, maintenance of the indoor heat exchanger is easier compared to when it is installed inside a residential room, and the noise generated by the indoor heat exchanger can be transferred to the living room. Because almost no noise is transmitted, it is effective in air-conditioning living rooms with little noise. Furthermore, the distance between the non-occupied zone and the occupied room is the piping distance of each duct, which is shorter than the piping distance of conventional central air conditioning systems, making piping construction easier. Also plays.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a perspective view showing the configuration of the entire system, and FIG. 2 is a sectional view showing a blower installed in a non-occupied space. FIG. 3 is a perspective view with a part of the intake/exhaust unit cut away, FIG. 4 is a perspective view showing another state of the intake/exhaust unit, and FIG. 5 is an efficient It is a diagram for explaining heating operation. 2.7... Corridor (non-occupied zone), 3.4, 5
,6,8,9,10.11... Room, I3...
...Intake/exhaust unit, 15...Plenum chamber (indoor heat exchanger)
, 16...Outdoor heat exchanger, 21A...Heat exchanger, 21B...Blower, 22.23...
・Air outlet, 24.25...Intake port, 40.41...Air duct, 42.4'3...Intake duct, Figure 5 (1) W , 300 m/line, "4 by duct! Deleted. Procedural amendment (Self-restraint prison, September 6, 1988 1, Incident indication Showa 60 Patent Application No. 136679 2, Title of invention Residential air conditioning system 3. Person who makes corrections

Claims (6)

[Claims] (1) An indoor heat exchanger that is connected to an outdoor heat exchanger, is connected to a blower, and has an air outlet and an air intake is installed in a non-occupied zone of the house, and the indoor heat exchanger has an air outlet. A residential air conditioning system characterized in that each of the air intake ports is connected to each of a plurality of living rooms adjacent to an indoor heat exchanger by an air supply duct and an air intake duct. (2) The residential air conditioning system according to claim 1, wherein the blower is provided near the outlet of the air supply duct in each room. (3) The residential air conditioning system according to claim 1, wherein the blower is provided near the air outlet or near the intake port of the indoor heat exchanger. (4) The residential air conditioning system according to claim 1, wherein the air supply duct and the intake duct are provided with opening/closing dampers. (5) The residential air conditioning system according to claim 1, wherein a blower is provided in the indoor heat exchanger, and a damper is provided near the air outlet or the intake port of the indoor heat exchanger. (6) The residential air conditioning system according to claim 1, wherein the openings of the air supply duct and the air intake duct on the living room side are provided in the transom.