JP6920044B2 - Air conditioning system - Google Patents

Description

The present invention relates to an air conditioning system that utilizes an indoor underfloor space as an air flow path during air conditioning.

In general air conditioning of an indoor space of a building, an outdoor unit of an air conditioner is installed outside the building, and the indoor space is heated or cooled by blowing warm or cold air from the indoor unit. In the case of such a general air-conditioning system, an air-conditioning device including an outdoor unit and an indoor unit must be installed in each room.

In contrast to such a general air-conditioning system, a duct network is provided on the ceiling of the room, and warm or cold air is blown out from the indoor unit through this duct network to reduce the number of outdoor units and indoor units. However, there is a problem that the installation work of the duct network extending to each room is complicated and the cost is high. Therefore, as in Patent Document 1, an air-conditioning system that uses the underfloor space formed between the foundation of a building and the floor material as an air flow path and sends air-conditioned warm or cold air toward this flow path. According to this, the duct extending to each room becomes unnecessary, and the cost can be reduced.

Japanese Unexamined Patent Publication No. 2011-47635 (Page 10, Fig. 5)

The air conditioning system described in Patent Document 1 is applied to a detached house, but since the detached house generally has a wooden structure, the airtightness of the foundation itself is low and it is used as an air flow path under the floor. There is a risk that warm or cold air will escape from the space to the outside.

Therefore, if it is applied to a concrete building such as a condominium composed of a concrete skeleton, the airtightness of the concrete skeleton is high, so that the loss of air conditioning can be reduced. However, when such a technique is simply applied to a concrete skeleton such as an apartment, the space surrounded by the floor surface in the room structure of the concrete skeleton and the wall surface and the floor material arranged above the floor surface is air. It will be used as a flow path. Therefore, while the airtightness is high, when the air comes into direct contact with the concrete skeleton, there is a problem that the control of air conditioning becomes complicated due to the occurrence of temperature unevenness due to warm and cold radiation from the concrete skeleton. In addition, there is a problem that dew condensation occurs in the flow path due to the temperature difference between the air and the concrete skeleton, and there is a risk that energy consumption will be wasted due to the heat of heating and cooling released to the outside through the concrete skeleton. It is desirable to take measures against the impact on.

The present invention has been made by paying attention to such a problem, and an object of the present invention is to provide an air conditioning system that facilitates air conditioning control while utilizing the underfloor space in a room as an air flow path.

In order to solve the above problems, the air conditioning system of the present invention
A room formed above the floor material using the underfloor space formed between the floor surface in the room structure of the concrete skeleton and the floor material arranged at intervals on the floor surface as a flow path. An air conditioning system that air-conditions the space
The air outlet of the air conditioner is communicated with the underfloor space.
The underfloor space is fixedly attached to the wall surface of the concrete skeleton from the floor surface of the concrete skeleton toward the ceiling, and has an interior wall provided with a heat insulating member extending in the vertical direction and a direction substantially orthogonal to the inner surface of the interior wall. The floor material arranged so as to abut the peripheral edges tightly without gaps, and the heat insulating material covering the floor surface in the room structure of the concrete skeleton arranged so as to abut the inner surface of the interior wall in a substantially orthogonal direction. , are surrounded by, and communication with the indoor space by the plurality formed vent to the flooring,
The flooring material is characterized in that it is arranged at intervals on the floor surface by a plurality of support legs erected on the floor surface in the room structure of the concrete skeleton.
According to this feature, by using the floor side of the highly airtight concrete skeleton as an air flow path, there is little loss of air conditioning, and the concrete skeleton in the part constituting the underfloor space used as the air flow path. Since the wall surface of the concrete is covered with an interior wall having a heat insulating effect, the influence of warm and cold radiation from the concrete skeleton on the air in the flow path is reduced, and air conditioning control can be easily performed.

Heat insulating material covering the front Symbol floor is characterized in that it has an opening surrounding the support legs has a shape that covers the floor.
According to this feature, since the support legs can be arranged directly on the floor surface of the concrete skeleton through the openings provided in the heat insulating material covering the floor surface, the floor material can be stably supported.

The heat insulating material covering the floor surface is characterized in that the upper surface thereof is flat and the lower surface of the flooring material is flat.
According to this feature, since the upper surface of the heat insulating material covering the floor surface and the lower surface of the floor material form a flat surface, the resistance of the air flowing through the underfloor space is small, and the amount of air blown out by the air conditioner can be easily controlled. Can be done.

The indoor space formed above the flooring material is divided into a plurality of rooms by a partition wall erected on the flooring material, and among the plurality of rooms, the air-conditioned room is ventilated. It is characterized by the formation of a mouth.
According to this feature, since the partition wall that divides the indoor space into multiple rooms does not overhang the underfloor space, there is little resistance of the air flowing through the air flow path, and the air from the air conditioner is smoothed in the room to be air-conditioned. Can be reached.

It is a figure which shows the air-conditioning system in an Example. It is a conceptual diagram which shows the indoor unit of an air conditioner. It is sectional drawing which shows the underfloor space. It is sectional drawing which shows the vent. Regarding the construction method for forming the underfloor space, (a) is a diagram showing a room space, and (b) is a diagram showing a state in which an interior wall is attached to the room space. Regarding the construction method for forming the underfloor space, (a) is a diagram showing a state in which a heat insulating material and support legs are attached to the room space, and (b) is a diagram showing a state in which the floor material is attached to the room space.

A mode for carrying out the air conditioning system according to the present invention will be described below based on examples.

The air conditioning system according to the embodiment will be described with reference to FIGS. 1 to 6.

The air-conditioning system in this embodiment is used in a building in which at least the floor surface and the wall surface of the room structure are composed of a concrete skeleton, and air-conditions the indoor space using the underfloor space described in detail later as a flow path. In this embodiment, the case where the air conditioning system is installed in one room of the condominium will be described as an example.

As shown in FIG. 1, one room of the condominium (hereinafter referred to as room structure A) has a so-called rigid frame structure, which is not described in detail in the figure, and has a ceiling surface (not shown) which is a concrete skeleton and a floor. It is defined by a surface 2 (see FIG. 3) and a wall surface 3. As shown in FIG. 3, an interior wall 4 is attached to the inside of the wall surface 3 of the room structure A, and a floor material 5 is attached to the floor surface 2, respectively, and a ceiling (not shown) attached to the ceiling surface. The interior space S is formed inside the room structure A by the material, the interior wall 4, and the floor material 5.

Further, on the floor material 5, partition walls 6, 6, ... For partitioning each room R, R, ... Are attached, and among the rooms R, R, ... Divided by the partition walls 6, 6, ... , Vents 7 are installed in each of the air-conditioned rooms R.

As shown in FIG. 2, an installation stand 29 is installed on the floor material 5, and an indoor unit 8 (air conditioner) including an indoor unit main body 9 and a duct 10 is installed on the installation base 29. Has been done. A suction port 11 for sucking air in the indoor space S is formed in the lower part of the front surface of the indoor unit main body 9, and the air sucked from the suction port 11 is cooled or heated, and the built-in blower 15 cools or heats the air outlet 12 described later. It is becoming more blown out. A filter (not shown) is built in the vicinity of the suction port 11 to remove the sucked air. The indoor unit 8 is connected to the outdoor unit 14 (air conditioner) via a refrigerant pipe (not shown) (see FIG. 1).

An air outlet 12 is provided in the upper part of the indoor unit main body 9, and one end 10a of a duct 10 routed to the back side of the indoor unit main body 9 is connected to the air outlet 12. The other end 10b of the duct 10 penetrates the installation base 29 formed in the floor material 5 and is connected to the through hole 13.

Further, as shown in FIG. 1, the indoor unit 8 is arranged in the machine room M, and although not described in detail in the drawing, the refrigerant pipe connected to the indoor unit 8 and the outdoor or drain pipe from the indoor unit 8 The drain pipe extending to is routed in the underfloor space U from the lower part of the indoor unit 8 through the floor material 5 of the machine room M. The machine room M is provided in a place where there is no problem according to the floor plan of the house.

As shown in FIG. 2, an underfloor space U is formed between the floor material 5 and the floor surface 2 of the room structure A, and the warm or cold air blown out from the air outlet 12 passes through the duct 10 to form the underfloor space U. It is supposed to be guided to.

The air cycle of the indoor space S in the air conditioning system 1 will be described. The air in the indoor space S sucked into the indoor unit 8 from the suction port 11 is cooled or heated, and is carried from the air outlet 12 to the underfloor space U through the duct 10. Further, warm air or cold air is not provided in rooms R, R, ... (Hereinafter, vents 7, 7, ...) In which vents 7, 7, ... Are provided through vents 7, 7, ... In order to distinguish it from the room, it is sent into the air-conditioned room R, R, ...).

Ventilation gaps (not shown) are formed in the doors 16, 16, ... Of the air-conditioned rooms R, R, ..., And warm or cold air is sent into the air-conditioned rooms R, R, ... Then, air overflows to the outside of the air-conditioned rooms R, R, ... Through the gaps between the doors 16, 16, .... The air-conditioned rooms R, R, ... The air that has gone out is finally sucked into the suction port 11 of the indoor unit 8.

As shown in FIG. 3, the flooring material 5 is composed of a particle board 20 whose lower surface 5a is surface-treated on a smooth flat surface and a plywood 21 stacked on the particle board 20 in an upper and lower layer. , A plurality of support legs 23 erected on the floor surface 2 of the room structure A are supported above the floor surface 2 in a state of being separated by a predetermined height. The peripheral edge 5c of the floor material 5 is abutted against the inner surface 4a of the interior wall 4, which will be described later, in a direction substantially orthogonal to the inner surface 4a. A flooring 22 on the indoor space S side, which is a surface material, is pasted on the floor material 5.

Further, a heat insulating material 24 is installed on the floor surface 2. The heat insulating material 24 is a so-called foamed plastic, and the upper surface 24a is a smooth flat surface, and openings 24b are formed at positions corresponding to the installation positions of the support legs 23 so as not to interfere with the support legs 23. There is. The outer peripheral edge 24c of the heat insulating material 24 is abutted against the inner surface 4a of the interior wall 4, which will be described later, in a direction substantially orthogonal to the inner surface 4a.

The interior wall 4 includes a heat insulating material 25 which is a foamed plastic attached to the wall surface 3 of the room structure A, a gypsum board 26, and a frame member 27 interposed between the heat insulating material 25 and the gypsum board 26. .. Further, although not shown, a wallpaper is attached to the surface of the gypsum board 26 on the indoor space S side, and a baseboard 28 is attached on the wallpaper.

The surface of the gypsum board 26 is shaped into a flat surface, and the underfloor space U side on the surface of the gypsum board 26 constitutes the inner surface 4a of the interior wall 4 in the underfloor space U. Further, the peripheral edge 5c of the floor material 5 is butted against the inner surface 4a of the interior wall 4 in a substantially orthogonal direction without a gap.

In this way, by abutting the peripheral edge 5c of the flooring material 5 against the inner surface 4a of the interior wall 4 in a substantially orthogonal direction without a gap, the underfloor space U is a highly airtight space that replaces the duct conventionally arranged on the ceiling side. Can be used as.

As described above, the underfloor space U is surrounded by the upper surface 24a of the heat insulating material 24 formed on a flat surface, the lower surface 5a of the floor material 5, and the inner surface 4a of the interior wall 4, and flows through the underfloor space U. The air resistance is low, and the amount of blown air from the indoor unit 8 can be easily controlled.

As shown in FIG. 4, the vent 7 is configured such that the vent unit 18 is fixed to a hole 17 that vertically penetrates the floor material 5. The vent unit 18 has a hollow structure and constitutes a passage for air to move from the underfloor space U to the indoor space S, and has a variable damper 19 in the passage.

Room controllers (not shown) are installed in each of the air-conditioned rooms R, R, ... The room controller has a button for setting a target temperature and a display screen, and is equipped with a thermometer and a communication device for measuring the room temperature of the room, and the opening degree of the variable damper 19 is adjusted so that the room temperature of the room R approaches the target temperature. It is designed to be adjusted. The opening degree information is also transmitted to the air conditioner, and the air conditioner adjusts the amount of air supplied to all the rooms from the opening information of the variable dampers 19 of each room R, R, ... The temperature is set and the amount of air blown out is controlled.

Subsequently, a construction method for forming the underfloor space U will be described with reference to FIGS. 5 and 6. As shown in FIGS. 5A and 5B, first, the interior wall 4 is attached to the wall surface 3 of the room structure A from the floor surface 2 toward the ceiling.

Next, as shown in FIG. 6A, after installing the heat insulating material 24 and the support legs 23 on the upper surface 2a of the floor surface 2 of the room structure A, the support legs are as shown in FIG. 6B. The floor material 5 is supported on the 23 so that the peripheral edge 5c of the floor material 5 abuts on the inner surface 4a of the interior wall 4. In this way, since the flooring material 5 is attached after the interior wall 4 is attached first, the peripheral edge 5c of the flooring material 5 can be accurately abutted against the inner surface 4a of the interior wall 4, and the underfloor space. U can be a space where airtightness is ensured.

As described above, in the underfloor space U used as an air flow path with less air conditioning loss by using the floor surface 2 side of the room structure A made of a highly airtight concrete skeleton as an air flow path. The portion that comes into direct contact with warm or cold air is composed of an interior wall 4 that covers the wall surface 3, a heat insulating material 24 that covers the floor surface 2, and a floor material 5. Therefore, the wall surface 3 and the floor surface 2 that are concrete skeletons. The influence of warm and cold radiation from the concrete is reduced, and air conditioning can be easily controlled. Further, it is possible to prevent the occurrence of dew condensation due to the temperature difference between the air in the underfloor space U and the wall surface 3 and the floor surface 2 which are concrete skeletons.

Further, since the floor surface 2 and the wall surface 3 are covered with the heat insulating material 24 and the heat insulating material 25, respectively, the influence of the warm and cold radiation from the room structure A on the air in the underfloor space U is further reduced. It has become. The heat insulating materials 24 and 25 are not limited to foamed plastic as long as they have a heat insulating effect. Further, the heat insulating material 24 is not limited to the configuration having an opening 24b so as not to interfere with the support legs 23, and for example, the separated heat insulating material may be arranged between the plurality of support legs 23, 23, ... ..

Further, since the support legs 23, 23, ... Can be directly arranged on the floor surface 2 of the concrete skeleton through the openings 24b, 24b, ... Provided in the heat insulating material 24 covering the floor surface 2, warm and cold radiation from the floor surface 2 can be arranged. The flooring material 5 can be stably supported while effectively reducing the influence of the above.

Further, as shown in FIG. 3, the interior space S formed above the flooring material 5 is divided into a plurality of rooms R by the partition wall 6 erected on the flooring material 5, so that the interior space S is indoors. The partition wall 6 that partitions the space S does not project into the underfloor space U. Therefore, the resistance of the air flowing through the air flow path is small, and the air from the indoor unit 8 can easily reach the entire underfloor space U.

Further, dust outside the machine room M is attracted to the lower end of the indoor unit 8 by suction from the suction port 11, but since the indoor unit 8 is installed on the installation table 29, the suction port 11 is the floor material 5. It will be located above a predetermined height. Therefore, as described above, although the indoor unit 8 is provided with a filter in the vicinity of the suction port 11, there is a problem that the filter is clogged when the dust collected from the entire indoor space S is removed. By locating the slits 11a, 11a, ... Above the floor material 5 at a predetermined height, the frequency of filter cleaning can be reduced. By adopting a structure that makes it easy to clean the filter of the indoor unit 8, the installation table 29 is omitted, air closer to the floor material 5 is sucked in, and dust in the indoor space S is collected. The configuration may be such that the recovery capacity is improved.

Although examples of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these examples, and any changes or additions within the scope of the gist of the present invention are included in the present invention. Is done.

For example, in the above embodiment, the indoor space S is partitioned by partition walls 6, 6, ... Standing on the floor material 5, and the underfloor space U is also formed under each room not subject to air conditioning. Although it may be configured, from the viewpoint of energy saving and air conditioning efficiency, a wall or the like that blocks the room may be provided so that warm air or cold air does not flow under the room that is not subject to air conditioning.

Further, although the indoor unit 8 has been described in the mode of being installed in the machine room M, the present invention is not limited to this, and the indoor unit 8 may be installed in, for example, a room R subject to air conditioning or a room not subject to air conditioning.

Further, since the holes 17 of the floor material 5 are arranged on the back side of the indoor unit main body 9, the duct 10 has been described as being routed on the back side of the indoor unit main body 9, but the present invention is limited to this. Instead, for example, a hole may be provided on the side surface side of the indoor unit main body 9 so that the suction force of the suction port 11 of the indoor unit 8 is not hindered, and the duct may be routed on the side surface side of the indoor unit main body 9.

Further, in the above embodiment, the interior wall 4 is configured to include the heat insulating material 25, the gypsum board 26, and the frame member 27, and the underfloor space U side on the surface of the gypsum board 26 forms the inner surface 4a of the interior wall 4 in the underfloor space U. Although the configuration has been described, the interior wall 4 is a word used as a comparison with the wall surface 3 of the gypsum skeleton, and is installed inside the wall surface 3 to form the interior space S and the underfloor space U. As long as it constitutes a so-called inner wall having a flat surface, the configuration is not limited to the configuration described in the examples.

Further, in the above embodiment, the flooring material 5 is configured such that the particle board 20 and the plywood 21 are vertically stacked, but the present invention is not limited to this, and the flooring 22 may be included in the flooring material, for example, the underfloor space U. The lower surface of the side may be composed of a single plate material formed into a flat surface.

Further, the air conditioning system 1 is not limited to the condominium, and can be adopted in various buildings as long as the room space is defined by the ceiling surface, the floor surface, and the wall surface of the concrete skeleton.

Further, in the above embodiment, the floor material 5 is cooled or heated by the air flowing through the underfloor space U and radiates warm and cold radiation to the indoor space S, so that the temperature difference at the boundary line between the indoor space S and the underfloor space U In order to sufficiently prevent dew condensation at the boundary line between the indoor space S and the underfloor space U, the peripheral edge 5c of the flooring material 5 is abutted with the inner surface 4a of the interior wall 4 in a substantially orthogonal direction without a gap. As described above, gaps may be formed between the peripheral edge 5c of the floor material 5 and the inner surface 4a of the interior wall 4, and between the lower surface of the skirting board 28 and the surface of the flooring 22. According to this, since air is mixed between the indoor space S and the underfloor space U through these gaps, the temperature difference of the air at the boundary line between the indoor space S and the underfloor space U is reduced, and dew condensation is effectively caused. Occurrence can be suppressed. It should be noted that this gap is formed to such an extent that the airtightness of the underfloor space U is not impaired.

1 Air conditioning system 2 Floor surface 2a Floor surface upper surface 3 Wall surface 4 Interior wall 4a Interior wall inner surface 5 Floor material 5a Floor material lower surface 5c Floor material peripheral edge 6 Partition wall 7 Ventilation port 8 Indoor unit 9 Indoor unit body 10 Duct 11 Suction port 12 Blow Outlet 13 Through hole 14 Outdoor unit 15 Blower 16 Door 17 Hole 18 Ventilation unit 19 Variable damper 23 Support leg 24 Insulation material 24a Insulation material Top surface 24b Opening 25 Insulation material A Room structure M Machine room R Room S Indoor space U Underfloor space

Claims (4)

A room formed above the floor material using the underfloor space formed between the floor surface in the room structure of the concrete skeleton and the floor material arranged at intervals on the floor surface as a flow path. An air conditioning system that air-conditions the space
The air outlet of the air conditioner is communicated with the underfloor space.
The underfloor space is fixedly attached to the wall surface of the concrete skeleton from the floor surface of the concrete skeleton toward the ceiling, and has an interior wall provided with a heat insulating member extending in the vertical direction and a direction substantially orthogonal to the inner surface of the interior wall. The floor material arranged so as to abut the peripheral edges tightly without gaps, and the heat insulating material covering the floor surface in the room structure of the concrete skeleton arranged so as to abut the inner surface of the interior wall in a substantially orthogonal direction. , are surrounded by, and communication with the indoor space by the plurality formed vent to the flooring,
An air conditioning system characterized in that the flooring material is arranged on the floor surface at intervals by a plurality of support legs erected on the floor surface in the room structure of the concrete skeleton. The air conditioning system of claim 1 wherein the heat insulating material covering the floor surface, characterized in that it has an opening surrounding the support legs has a shape that covers the floor. The air conditioning system according to claim 1 or 2 , wherein the heat insulating material covering the floor surface has a flat upper surface, and the floor material has a flat lower surface. The indoor space formed above the flooring material is divided into a plurality of rooms by a partition wall erected on the flooring material, and among the plurality of rooms, the air-conditioned room is ventilated. The air conditioning system according to any one of claims 1 to 3, wherein a mouth is formed.

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