Apartment building

Abstract

To provide an apartment building that can improve comfort and air conditioning efficiency in dwelling units.SOLUTION: Provided is an apartment building 1. The apartment building 1 includes multiple dwelling units 2, a common area 3, an underfloor section 4 provided below the common area 3, and a ventilation device 5. The underfloor section 4 includes an outside air inlet 18 for taking in outside air Ao, and an underfloor space 19 capable of exchanging the taken-in outside air Ao with geothermal heat. The ventilation device 5 is configured to be able to supply air Au in the underfloor space to the multiple dwelling units 2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to apartment buildings. [Background technology]

[0002] 2. Description of the Related Art Various types of collective housing including a plurality of dwelling units have been proposed in the past (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-217921 A Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, the outside air used for ventilation of each dwelling unit is directly supplied from the outdoors through a ventilation opening provided in each dwelling unit. Therefore, for example, in winter, when cold outside air is directly supplied, there is a problem that the comfort and air conditioning efficiency in the dwelling unit deteriorates.

[0005] The present invention has been devised in consideration of the above-mentioned circumstances, and has as its main object to provide an apartment building that can improve comfort and air conditioning efficiency within the dwelling units. [Means for solving the problem]

[0006] The present invention is an apartment building comprising a plurality of dwelling units, a common area, an underfloor section provided below the common area, and a ventilation device, the underfloor section including an outside air inlet for taking in outside air and an underfloor space capable of heat exchanging the taken-in outside air with geothermal heat, and the ventilation device configured to be able to supply air from the underfloor space to the plurality of dwelling units. Effect of the Invention

[0007] By adopting the above-described configuration, the apartment building of the present invention can improve comfort and air conditioning efficiency within the dwelling units. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a conceptual diagram showing an apartment building according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a partially enlarged view of FIG. [Diagram 3] FIG. 13 is a conceptual diagram showing an apartment building according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be understood that the drawings include exaggerated expressions and expressions different from the dimensional ratio of the actual structure in order to help understand the contents of the invention. Furthermore, the same or common elements are given the same reference numerals throughout the embodiments, and duplicated explanations are omitted. Furthermore, the specific configurations shown in the embodiments and drawings are for understanding the contents of the present invention, and the present invention is not limited to the specific configurations shown in the drawings.

[0010] [Apartment building (first embodiment)] FIG. 1 is a conceptual diagram showing an apartment building 1 according to the present embodiment. The apartment building 1 is configured as, for example, an apartment or condominium. The apartment building 1 according to the present embodiment is illustrated as having two floors, but is not limited to this. The apartment building 1 may be, for example, one floor or three or more floors.

[0011] The apartment building 1 of this embodiment includes a plurality of dwelling units 2, a common area 3, an underfloor area 4, and a ventilation system 5. The plurality of dwelling units 2, the common area 3, and the underfloor area 4 are formed by, for example, a foundation 6, an exterior wall 7, an interior wall 8, a floor 9, a ceiling 10, and a roof 11.

[0012] [Basic] The foundation 6 is made of, for example, reinforced concrete. The foundation 6 in this embodiment includes a base portion 6a extending horizontally underground and a rising portion 6b extending upward from the center in the width direction of the base portion 6a and protruding from the ground G. A dirt floor (dirt floor concrete) 12 is provided on the ground G surrounded by the rising portion 6b.

[0013] [Exterior and interior walls] The exterior walls 7 are used to separate the interior space of the apartment building 1 (including the multiple dwelling units 2 and the common area 3 in this example) from the outdoors 13. Meanwhile, the interior walls 8 are used to separate the multiple dwelling units 2 from one another, and between the multiple dwelling units 2 and the common area 3. These exterior walls 7 and interior walls 8 may be arranged on a foundation 6, for example. Furthermore, the exterior walls 7 and interior walls 8 may be provided with insulating material (not shown) as in the conventional case.

[0014] [floor] The floor 9 in this embodiment includes a lower floor 9A and an upper floor 9B. When the apartment house 1 is two stories tall, as in this embodiment, the lower floor 9A is configured as the first floor floor, and the upper floor 9B is configured as the second floor floor.

[0015] The lower floor 9A may be disposed, for example, on the foundation 6. The lower floor 9A in this embodiment includes the floor 9Aa of the lower floor dwelling unit 2A and the floor 9Ab of the lower floor common area 3A. The upper floor 9B in this embodiment includes the floor 9Ba of the upper floor dwelling unit 2B and the floor 9Bb of the upper floor common area 3B.

[0016] [Ceiling and roof] The ceiling 10 of this embodiment is configured to include a lower floor ceiling 10A and an upper floor ceiling 10B. When the apartment house 1 is two stories tall, as in this embodiment, the lower floor ceiling 10A is configured as the first floor ceiling, and the upper floor ceiling 10B is configured as the second floor ceiling. The roof 11 includes, for example, a known roofing material (not shown).

[0017] [Dwelling unit] In this embodiment, the dwelling unit 2 is each unit in the apartment building 1 and is a private area for the resident. Each dwelling unit 2 has the necessary functions as a residence.

[0018] In this embodiment, the multiple dwelling units 2 include a lower dwelling unit 2A and an upper dwelling unit 2B. When the apartment house 1 is a two-story building as in this embodiment, the lower dwelling unit 2A is configured as the first floor dwelling unit, and the upper dwelling unit 2B is configured as the second floor dwelling unit.

[0019] In this embodiment, a plurality of lower floor dwelling units 2A are provided, but there may be only one. The number of lower floor dwelling units 2A can be appropriately set according to, for example, the size and layout of the apartment building 1. In this embodiment, three lower floor dwelling units 2A are provided.

[0020] In this embodiment, multiple upper floor dwelling units 2B are provided, but there may be only one. The number of upper floor dwelling units 2B can be set appropriately depending on, for example, the size and layout of the apartment building 1. In this embodiment, three upper floor dwelling units 2B are provided.

[0021] [gap] Between the lower dwelling unit 2A and the upper dwelling unit 2B, there is provided a space between floors 14. In this embodiment, the space between floors 14 is formed between a ceiling 10A of the lower floor and a floor 9B of the upper floor.

[0022] The ceiling 10A of the lower floor and the floor 9B of the upper floor are preferably made of a fire-resistant structure. This allows the inter-floor spaces 14 to maintain their fire-resistant and sound-insulating performance even without the need for parting walls (not shown) that separate the multiple dwelling units 2. The inter-floor spaces 14 can therefore be continuous across the multiple dwelling units 2 without the need for parting walls. This eliminates the need for the time-consuming task of installing parting walls, making the apartment building 1 easier to construct.

[0023] The ceiling 10A of the lower floor can be appropriately constructed as long as it has a fire-resistant structure. FIG 2 is a partially enlarged view of FIG 1.

[0024] The ceiling 10A of the lower floor of this embodiment preferably includes a reinforced ceiling material 15. The reinforced ceiling material 15 is, for example, composed of two or more gypsum boards (two gypsum boards 15a, 15b in this example), and its thickness W1 is set to 36 mm or more. Such reinforced ceiling material 15 improves the fire resistance of the floor space 14.

[0025] The inter-floor space 14 may be provided with a ceiling insulation material 16 disposed adjacent to the ceiling 10A of the lower floor. The ceiling insulation material 16 of this embodiment is made of an insulation material with high fire resistance (for example, a fiber material such as rock wool or glass wool). Such a ceiling insulation material 16 improves the insulation and soundproofing performance of the ceiling 10A of the lower floor, and can prevent the spread of fire between the dwelling units 2, 2 via the inter-floor space 14.

[0026] The upper floor 9B may be appropriately constructed as long as it has a fire-resistant structure. In this embodiment, the upper floor 9B preferably includes, for example, an ALC board or a concrete board. This improves the fire resistance of the floor space 14.

[0027] [Attic] An attic 17 is provided above the multiple dwelling units 2. The attic 17 is configured as a space surrounded by the roof 11 and the ceiling 10B of the upper floor.

[0028] The ceiling 10B of the upper floor is preferably made of a fire-resistant structure. This allows the attic 17 to maintain its fire resistance and sound insulation performance even without installing parting walls (not shown) that separate the multiple dwelling units 2. Therefore, the attic 17 can be continuous across the multiple dwelling units 2 without having parting walls. This eliminates the need for the time-consuming installation of parting walls, making the apartment building 1 easier to construct.

[0029] The ceiling 10B of the upper floor may be appropriately configured as long as it has a fire-resistant structure. The ceiling 10B of the upper floor of this embodiment preferably includes a reinforced ceiling material 15, similar to the ceiling 10A of the lower floor. Such reinforced ceiling material 15 improves the fire resistance of the attic 17.

[0030] The attic 17 may be provided with ceiling insulation 16 disposed adjacent to the ceiling 10B of the upper floor, similar to the floor space 14. Such ceiling insulation 16 improves the heat insulating and soundproofing performance of the ceiling 10B of the upper floor, and can prevent the spread of fire between the dwelling units 2, 2 through the attic 17.

[0031] [Common area] 1, the common area 3 of this embodiment faces multiple dwelling units 2 and is a common space partitioned off from the outdoors (external air) 13. Such common area 3 is separated from the outdoors 13 by an exterior wall 7, improving crime prevention for the apartment building 1. The common area 3 of this embodiment is configured as a corridor, staircase, or the like facing each of the dwelling units 2.

[0032] The common area 3 of this embodiment includes a common area 3A on the lower floor and a common area 3B on the upper floor. When the apartment house 1 is two stories tall, as in this embodiment, the common area 3A on the lower floor is configured as the common area on the first floor, and the common area 3B on the upper floor is configured as the common area 3 on the second floor. For example, a staircase 3C having an ascending and descending staircase is included between the common area 3A on the lower floor and the common area 3B on the upper floor. Air can flow between the common area 3A on the lower floor and the common area 3B on the upper floor through the staircase 3C.

[0033] [Underfloor] The underfloor portion 4 is provided below the common area 3. The underfloor portion 4 in this embodiment is configured to include a foundation 6A of the common area, a dirt floor 12A of the common area, and a floor 9Ab of the common area 3A on the lower floor.

[0034] The foundation 6A of the common area in this embodiment is the foundation of the part surrounding the common area 3 (dividing the common area 3A of the lower floor) among the foundations 6 provided in the apartment building 1. Therefore, the foundation 6 of this embodiment, excluding the foundation 6A of the common area, can be specified as the foundation 6B of the dwelling unit.

[0035] The common area earthen floor 12A of this embodiment is an earthen floor provided in an area partitioned by the common area foundation 6A among the earthen floors 12 provided in the apartment house 1. Therefore, the earthen floor 12 of this embodiment is specified as the earthen floor 12B of the dwelling unit, excluding the common area earthen floor 12A.

[0036] In this embodiment, the floor 9Ab of the common area 3A on the lower floor is a floor provided in an area of ​​the floor 9A on the lower floor that is partitioned by the foundation 6A of the common area. The floor 9Ab of the common area 3A on the lower floor is made of, for example, a cement board, and is disposed on the foundation 6A of the common area.

[0037] The underfloor portion 4 of the present embodiment includes an outside air inlet 18 and an underfloor space 19.

[0038] [Outside air intake] The outside air inlet 18 is for taking in outside air Ao into the underfloor part 4. In this embodiment, the outside air inlet 18 is formed as a hole penetrating the foundation 6A of the common area (in this example, the rising part 6b). Note that the outside air inlet 18 is not limited to this embodiment as long as it can take in outside air Ao into the underfloor part 4. Also, only one outside air inlet 18 may be provided, or multiple outside air inlets 18 may be provided.

[0039] [Underfloor space] The underfloor space 19 is for exchanging heat between the outside air Ao taken in from the outside air inlet 18 and geothermal heat (not shown). In this embodiment, the underfloor space 19 is partitioned by the foundation 6A of the common area, the earthen floor 12A of the common area, and the floor 9Ab of the common area 3A on the lower floor.

[0040] Geothermal heat (not shown) is transmitted to the earthen floor 12A of the common area (including the earthen floor 12 of the dwelling unit). Therefore, the earthen floor 12A of the common area is configured as a heat exchanger capable of exchanging heat between the geothermal heat and the air in the underfloor space 19. The earthen floor 12 of the common area 3 allows the outside air Ao taken in from the outside air inlet 18 to be heat exchanged with the geothermal heat in the underfloor space 19.

[0041] Geothermal heat changes little throughout the year. Heat exchange between this geothermal heat and the outside air Ao taken in through the outside air inlet 18 causes air Au (hereinafter sometimes referred to as "underfloor air") to be stored in the underfloor space 19, which is cooler than the outside air Ao in summer and warmer than the outside air Ao in winter. In order to maintain the temperature of this underfloor air Au, it is preferable to place a heat insulating material (not shown) in the foundation 6A of the common area.

[0042] [Ventilation system] The ventilation device 5 is for supplying the under-floor air Au to the multiple dwelling units 2. The ventilation device 5 may be configured as appropriate as long as it can supply the under-floor air Au to the multiple dwelling units 2. As shown in FIG. 2, the ventilation device 5 of this embodiment is configured to include an air transport flow path 20 and a first fan 21.

[0043] [Air transport path] The air transport passage 20 is configured to include a plurality of ducts 26. In this embodiment, the plurality of ducts 26 communicates the underfloor space 19 with the plurality of dwelling units 2. The plurality of ducts 26 may be disposed, for example, in a piping space (not shown) of the apartment building 1.

[0044] The multiple ducts 26 in this embodiment include a lower duct 26A and an upper duct 26B.

[0045] In this embodiment, the lower duct 26A connects the underfloor space 19 to the dwelling unit 2A on the lower floor. When multiple dwelling units 2A are provided on the lower floor as in this embodiment, the lower duct 26A branches and is connected to each of the multiple dwelling units 2A on the lower floor.

[0046] The lower duct 26A in this embodiment is disposed between floors 14. As described above, the floors 14 in this embodiment do not have any partition walls (not shown) separating the multiple dwelling units 2, and have a continuous space spanning the multiple dwelling units 2. By disposing the lower duct 26A between such floors 14, the lower duct 26A can be easily handled, and the ease of construction and maintenance of the apartment building 1 is improved.

[0047] In this embodiment, the upper duct 26B communicates between the underfloor space 19 and the dwelling unit 2B on the upper floor. When multiple dwelling units 2B are provided on the upper floors as in this embodiment, the upper duct 26B branches out and is connected to each of the multiple dwelling units 2B on the upper floors.

[0048] The upper duct 26B in this embodiment is arranged in the attic 17. As described above, the attic 17 in this embodiment does not have any partition walls (not shown) separating the dwelling units 2, and has a continuous space spanning multiple dwelling units 2. By arranging the upper duct 26B in such an attic 17, the upper duct 26B can be easily handled, improving the ease of construction and maintenance of the apartment building 1.

[0049] [First Fan] The first fan 21 is for compressing and sending the under-floor air Au to the air transport flow path 20. In this specification, the "fan" is not particularly limited as long as it is a machine for compressing and sending air.

[0050] The first fan 21 of this embodiment is configured to include a first fan 21A for the lower floor and a first fan 21B for the upper floor.

[0051] The first fan 21A on the lower floor is for pressurizing and sending the underfloor air Au to the lower duct 26A. In this embodiment, the first fan 21A on the lower floor is connected to the underfloor space 19 side of the lower duct 26A. By operating the first fan 21A on the lower floor in this manner, the underfloor air Au (outside air Ao) can be supplied to the multiple lower floor dwelling units 2A via the lower duct 26A. This allows the multiple lower floor dwelling units 2A to be ventilated. The air volume of the first fan 21A on the lower floor is appropriately set based on the number of ventilations required for the apartment building 1 (the multiple lower floor dwelling units 2A).

[0052] The first fan 21B on the upper floor is for pressurizing and sending the underfloor air Au to the upper duct 26B. In this embodiment, the first fan 21B on the upper floor is connected to the underfloor space 19 side of the upper duct 26B. By operating the first fan 21B on the upper floor in this manner, the underfloor air Au (outside air Ao) can be supplied to the multiple upper floor dwelling units 2B via the upper duct 26B. This allows the multiple upper floor dwelling units 2B to be ventilated. The air volume of the first fan 21B on the upper floor is appropriately set based on the number of ventilations required for the apartment building 1 (the multiple upper floor dwelling units 2B).

[0053] [Functions of collective housing] As shown in FIG. 1, in the apartment house 1 of this embodiment, the outside air Ao taken in from the outside air inlet 18 is heat-exchanged with geothermal heat, so that underfloor air Au that is cooler than the outside air Ao in summer and warmer than the outside air Ao in winter can be stored in the underfloor space 19. Furthermore, as shown in FIG. 2, in the apartment house 1 of this embodiment, the underfloor air Au (outside air Ao) can be supplied to multiple dwelling units 2 by the ventilation device 5. This allows the apartment house 1 of this embodiment to ventilate multiple dwelling units 2. Furthermore, by supplying the underfloor air Au that has been heat-exchanged with geothermal heat, the apartment house 1 of this embodiment can improve comfort and air-conditioning efficiency in the dwelling units 2 compared to, for example, a conventional apartment house (not shown) that ventilates by directly supplying the outside air Ao from the outside 13 (shown in FIG. 1).

[0054] As shown in Fig. 1, in the apartment house 1 of this embodiment, an underfloor space 19 for storing underfloor air Au is provided in the underfloor space 4 below the common area 3. This allows the apartment house 1 of this embodiment to effectively utilize the underfloor space 4 that would otherwise be used as a dirt floor in conventional apartment houses (not shown).

[0055] [Filter material] 2, the ventilation device 5 may be provided with a filter member 28. The filter member 28 is for purifying the underfloor air Au. By supplying the underfloor air Au purified by such a filter member 28 to the multiple dwelling units 2, the air quality of the multiple dwelling units 2 can be improved.

[0056] The filter member 28 in this embodiment is provided upstream of the first fan 21 in the supply direction of the under-floor air Au, but may be provided downstream. In addition, the filter member 28 may be a known one capable of removing pollen, air pollutants, and the like contained in the outside air Ao (under-floor air Au), for example.

[0057] [Fourth Fan] As shown in FIG. 1, each of the multiple dwelling units 2 may be provided with a fourth fan 24.

[0058] The fourth fan 24 is for discharging air Ai from each dwelling unit 2 to the outdoors 13. This fourth fan 24 and the above-mentioned ventilation device 5 mechanically exhaust and supply air to the multiple dwelling units 2, so this can be configured as a first type ventilation method. This allows the multiple dwelling units 2 in the apartment building 1 to be ventilated efficiently. To effectively exert this effect, it is preferable that the fourth fan 24 is provided in all of the dwelling units 2. The air volume of the fourth fan 24 is set appropriately based on, for example, the number of ventilation cycles required for the apartment building 1 (each dwelling unit 2).

[0059] [Solar power generation equipment] The apartment house 1 may further be provided with a solar power generation device 29. The solar power generation device 29 is for generating electric power converted from the light energy of the sun as renewable energy.

[0060] The solar power generation device 29 of this embodiment is installed on the roof 11 of the apartment house 1, but is not particularly limited thereto. Also, for example, a known silicon-based or compound-based solar power generation device may be used for the solar power generation device 29. A silicon-based solar power generation device having excellent power generation efficiency may be used for the solar power generation device 29 of this embodiment.

[0061] The electricity generated by the solar power generation device 29 may be consumed within the apartment building 1, for example. This improves the self-consumption rate of solar power generation (renewable energy) in the apartment building 1, and the apartment building may be recognized as a ZEH (hereinafter, sometimes referred to as a "collective ZEH"). Here, ZEH is an abbreviation for Net Zero Energy House, and is a house designed to achieve an energy balance of zero or less.

[0062] The electricity generated by the solar power generation device 29 is preferably usable for the ventilation device 5 (including the first fan 21 shown in FIG. 2) and the fourth fan 24. This improves the self-consumption rate of the apartment building 1, and keeps the energy costs of the apartment building 1 low. Therefore, the solar power generation device 29 helps to improve the benefits for the residents of each dwelling unit 2.

[0063] [Apartment building (second embodiment)] [Air conditioner] 3 is a conceptual diagram showing an apartment house 1 according to another embodiment of the present invention. The apartment house 1 of this embodiment further includes an air conditioner 30. This air conditioner 30 is for supplying conditioned air (hereinafter sometimes referred to as "conditioned air") to the common area 3. The air conditioner 30 of this embodiment includes, as a set, an indoor unit 30a and an outdoor unit (not shown) installed outside the apartment house 1 (outdoors 13).

[0064] The indoor unit 30a in this embodiment is installed in the common area 3B on the upper floor. The indoor unit 30a supplies conditioned air Ac to the common area 3B on the upper floor, and further to the common area 3A on the lower floor via the staircase 3C. This conditions the entire common area 3. This can improve comfort in the common area 3, where heat and cold air from the outdoors tend to build up.

[0065] The indoor unit 30a in this embodiment supplies conditioned air Ac to the common area 3B on the upper floor, but is not limited to this. The conditioned air Ac may be supplied, for example, to the common area 3A on the lower floor, or to both the common area 3B on the upper floor and the common area 3A on the lower floor.

[0066] The air conditioner 30 may be configured to use electricity generated by a solar power generation device 29. This improves the self-consumption rate of the apartment house 1 and keeps the utility costs of the apartment house 1 low, which helps to improve the benefits for the residents of each dwelling unit 2.

[0067] [Second Fan] The apartment building 1 of this embodiment may further include a second fan 22. The second fan 22 is for circulating air between the common area 3 and the underfloor space 19.

[0068] The second fan 22 in this embodiment is configured to include one second fan 22A and the other second fan 22B. One second fan 22A is for pressurizing and sending the air Aj (conditioned air Ac) in the common area to the underfloor space 19. The other second fan 22B is for pressurizing and sending the underfloor air Au to the common area 3. Air can be circulated between the common area 3 and the underfloor space 19 by these second fans 22A and 22B.

[0069] In this embodiment, by operating one of the second fans 22A, a portion of the conditioned air Ac supplied to the common area 3 is supplied to the underfloor space 19. As a result, in the apartment building 1 of this embodiment, the ventilation device 5 can supply a mixture of the underfloor air Au and the conditioned air Ac to the multiple dwelling units 2. This makes it possible to ventilate and air-condition the multiple dwelling units 2.

[0070] Furthermore, by operating the other second fan 22B, a portion of the underfloor air Au (outside air Ao) is supplied to the common area 3. This allows the common area 3 to be ventilated. As described above, the underfloor air Au is cooler than the outside air Ao in summer and warmer than the outside air Ao in winter. By supplying such underfloor air Au to the common area 3, it is possible to improve the comfort and air conditioning efficiency within the common area 3. The air volumes of one second fan 22A and the other second fan 22B are appropriately set based on, for example, the number of ventilations required for the apartment building 1 (common area 3).

[0071] The second fan 22 may be configured to use electricity generated by a solar power generation device 29. This improves the self-consumption rate of the apartment house 1 and keeps the utility costs of the apartment house 1 low, which helps to improve the benefits for the residents of each dwelling unit 2.

[0072] [Third Fan] In this embodiment, a third fan 23 may be provided in the common area 3. This third fan 23 is for discharging the air Aj in the common area 3 to the outside 13. Such a third fan 23 and the above-mentioned second fan 22 mechanically perform exhaust and supply to the common area 3, so that this can be configured as a first type ventilation method. This allows the common area 3 to be efficiently ventilated in the apartment building 1. Furthermore, the third fan 23 can discharge heat and the like trapped in the common area 3 to the outside 13, improving comfort and air conditioning efficiency in the common area 3. The air volume of the third fan 23 is appropriately set based on the number of ventilations required for the apartment building 1 (each dwelling unit 2), for example.

[0073] The third fan 23 may be configured to use electricity generated by a solar power generation device 29. This improves the self-consumption rate of the apartment house 1 and reduces utility costs in the apartment house 1, which helps to improve the benefits for the residents of each dwelling unit 2.

[0074] Although a particularly preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the illustrated embodiment and can be modified and carried out in various forms.

[0075] [Note] The present invention includes the following aspects.

[0076] [Invention 1] It is an apartment building, Multiple dwellings and Common areas and A floor underside provided below the common area;

[0023] a ventilation system; The underfloor portion includes an outside air inlet for taking in outside air, and an underfloor space capable of exchanging heat between the taken-in outside air and geothermal heat, The ventilation device is configured to be able to supply air from the underfloor space to the plurality of dwelling units. apartment complex. [Invention 2] The ventilation device includes: An air transport flow path including a plurality of ducts communicating the underfloor space with the plurality of dwelling units; The apartment house according to Present Invention 1, further comprising a first fan that pressurizes and sends air in the underfloor space to the air transport flow path. [Invention 3] Further including an attic provided above the plurality of dwelling units; The attic has a continuous space across a plurality of dwelling units without having a partition wall separating the dwelling units, The apartment building described in Invention 2, wherein the plurality of ducts includes an upper duct arranged in the attic. [Invention 4] It includes a lower dwelling unit, an upper dwelling unit above, and the space between them; The floor space has a continuous space between the plurality of dwelling units without any partition walls separating the plurality of dwelling units, 4. An apartment building as described in claim 2 or 3, wherein the plurality of ducts includes a lower duct arranged between the floors. [Invention 5] 5. The apartment building according to any one of claims 1 to 4, wherein the ventilation device includes a filter member for purifying the air in the underfloor space. [Invention 6] The common area is a space partitioned from the outside air, 6. The apartment building according to any one of claims 1 to 5, further comprising an air conditioner for supplying conditioned air to the common area. [Invention 7] The apartment building according to claim 6, further comprising a second fan for circulating air between the common area and the underfloor space. [Invention 8] 8. The apartment building according to claim 6 or 7, wherein the common area is provided with a third fan for discharging air from the common area to the outdoors. [The present invention 9] 9. The apartment building according to any one of claims 1 to 8, wherein each of the plurality of dwelling units is provided with a fourth fan for discharging air from each dwelling unit to the outdoors. [The present invention 10] Further comprising a solar power generation device; 10. The apartment building according to any one of claims 1 to 9, wherein the ventilation device is capable of using electricity generated by the solar power generation device. [Explanation of symbols]

[0077] 1 Apartment complex 2 Dwellings 3 Common areas 4 Underfloor 5. Ventilation system 18 Fresh air intake 19 Underfloor space

Claims

1. It is an apartment building, Multiple dwellings and Common areas and A floor underside provided below the common area; [0023] a ventilation system; The underfloor portion includes an outside air inlet for taking in outside air, and an underfloor space capable of exchanging heat between the taken-in outside air and geothermal heat, The ventilation device is configured to be able to supply air from the underfloor space to the plurality of dwelling units. apartment complex.

2. The ventilation device includes: An air transport flow path including a plurality of ducts communicating the underfloor space with the plurality of dwelling units; The apartment building according to claim 1 , further comprising: a first fan that pressurizes air in the underfloor space to the air transport flow path.

3. Further including an attic provided above the plurality of dwelling units; The attic has a continuous space across multiple dwelling units without having a partition wall separating the dwelling units, The apartment building of claim 2 , wherein the plurality of ducts includes an upper duct arranged in the attic.

4. It includes a lower dwelling unit, an upper dwelling unit above, and the space between them; The floor space has a continuous space between the plurality of dwelling units without any partition walls separating the plurality of dwelling units, The apartment building of claim 2 , wherein the plurality of ducts includes a lower duct arranged between the floors.

5. The apartment building according to claim 1 , wherein the ventilation device includes a filter member for purifying air in the underfloor space.

6. The common area is a space partitioned from the outside air, The apartment building according to claim 1 , further comprising an air conditioner for supplying conditioned air to the common area.

7. The apartment building of claim 6, further comprising a second fan for circulating air between the common area and the underfloor space.

8. The apartment building according to claim 6 , wherein the common area is provided with a third fan for discharging air from the common area to the outdoors.

9. The apartment building according to claim 1 , wherein each of the plurality of dwelling units is provided with a fourth fan for exhausting air from each dwelling unit to the outdoors.

10. Further comprising a solar power generation device; The apartment building according to claim 1 , wherein the ventilation device is capable of using electricity generated by the solar power generation device.

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