Dew condensation prevention structure, and housing

Abstract

To provide a dew condensation prevention structure capable of preventing the occurrence of summer dew condensation between floors, and a housing equipped with the same.SOLUTION: A housing 8 comprises a housing main body 7 and a dew condensation prevention structure 9. The housing main body 7 comprises a lower floor section 1 having a lower living space 10, an upper floor section 2 having an upper living space 20, and an inter-floor section 3 provided between the lower floor section 1 and the upper floor section 2 and having an inter-floor space 30. The dew condensation prevention structure 9 includes a through-hole 91 and a blower unit 95 installed in the through-hole 91. The through-hole 91 makes the inter-floor space 30 communicate with the lower living space 10 in the vertical direction. The blower unit 95 forcibly sends air from the lower living space 10 into the inter-floor space 30.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a condensation prevention structure and a house that prevent condensation from occurring between floors. [Background technology]

[0002] In houses with an inter-floor area between the lower and upper floors, there is a problem that condensation is likely to occur in the inter-floor area, especially in the summer. This type of condensation is hereinafter referred to as summer condensation. For example, when an air conditioning duct is installed in the inter-floor area of ​​a house (see Patent Document 1), the air in the inter-floor area becomes hot and humid, so summer condensation is likely to occur on the surface of the duct. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-024358 Public Relations Summary of the Invention [Problem to be solved by the invention]

[0004] The problem that the present disclosure aims to solve is to provide a condensation prevention structure that can prevent summer-type condensation from occurring between floors, and a house equipped with the same. [Means for solving the problem]

[0005] A condensation prevention structure according to one aspect of the present disclosure is a condensation prevention structure for preventing summer condensation from occurring in a main body of a house. The main body of the house includes a lower floor section having a lower living space, an upper floor section having an upper living space, and an inter-floor section provided between the lower floor section and the upper floor section and having an inter-floor space. The condensation prevention structure includes a through-hole that vertically connects the inter-floor space with the lower living space located below it, and a blower unit installed in the through-hole and configured to forcibly send air from the lower living space into the inter-floor space.

[0006] A house according to one aspect of the present disclosure includes the condensation prevention structure and the house body provided with the condensation prevention structure. [Effects of the Invention]

[0007] The present disclosure has the effect of providing a condensation prevention structure that can prevent summer-type condensation from occurring between floors, and a house equipped with the same. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a cross-sectional view showing a main part of a house according to a first embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing another main part of the house. [Figure 3] FIG. 3 is a cross-sectional view showing a main part of a house according to the second embodiment. [Figure 4] FIG. 4 is a cross-sectional view showing a main part of a house according to the third embodiment. [Figure 5] FIG. 5 is a cross-sectional view showing a main part of a house according to the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] 1. First embodiment A condensation prevention structure 9 and a house 8 according to a first embodiment will be described with reference to the accompanying drawings. However, the embodiment described below is merely one example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications can be made depending on the design, etc., as long as they do not deviate from the technical concept of the present disclosure. Furthermore, each figure used to explain the following embodiment is a schematic diagram. The ratios of the sizes and thicknesses of the components in each figure do not necessarily reflect the actual dimensional ratios.

[0010] (Housing Overview) FIG. 1 shows the main parts of a house 8 according to a first embodiment. The house 8 according to the first embodiment includes a main house 7 having multiple floors and a condensation prevention structure 9 provided in the main house 7. The condensation prevention structure 9 is a structure for preventing summer condensation from occurring in the main house 7. Summer condensation occurs in the inter-story section 3 (described below) provided in the main house 7, due to high temperatures and humidity inside the inter-story section 3 during the summer. In this disclosure, the term "prevent" is not limited to meaning completely preventing it, but also includes the meaning of suppressing it to a certain extent.

[0011] (House body) The main house 7 includes a lower floor 1, an upper floor 2, and an inter-floor section 3. In the first embodiment, the lower floor 1 is the first floor of the main house 7. The upper floor 2 is the second floor of the main house 7.

[0012] (lower floor) The lower floor 1, which constitutes the first floor of the main body 7 of the house, has a living space 10 where residents can live. The living space 10 includes one or more living rooms. The living space 10 is a space into which air is directly supplied by an air conditioner (not shown). In other words, the living space 10 is a space that is directly air-conditioned by the air supplied from the air conditioner.

[0013] The lower floor section 1 includes an interior panel 12, an insulating panel 14 arranged on the outdoor side of the interior panel 12, an exterior panel 16 arranged on the outdoor side of the insulating panel 14 via a ventilation layer 15, and a ceiling panel section 18. As shown by the dashed line in Figure 1, the lower floor section 1 of the first embodiment is configured so that air passes upward through the ventilation layer 15.

[0014] The lower floor 1 further includes a thermal insulation material 17 placed on the upper end of the interior panel 12. The upper end 141 of the thermal insulation panel 14 protrudes upward beyond the upper end of the interior panel 12. The thermal insulation material 17 is located on the indoor side of the upper end 141 of the thermal insulation panel 14. The ceiling panel portion 18 is located on the indoor side of the thermal insulation material 17. The thermal insulation material 17 is located between the upper end 141 of the thermal insulation panel 14 and the ceiling panel portion 18 in the indoor / outdoor direction.

[0015] A soffit material 6 is attached to the lower floor 1 so as to protrude outdoors from the upper end of the exterior panel 16. Space S3 is located above the soffit material 6. Space S3 is a space located on the outdoor side of the inter-floor section 3. A vent 63 is formed at the outdoor end of the soffit material 6 to allow air to pass upward. As shown by the dashed line in Figure 1, the house main body 7 of the first embodiment is configured so that air passes through the vent 63 into space S3.

[0016] (Upper floor) The upper floor 2, which constitutes the second floor of the main housing body 7, is located above the lower floor 1. The upper floor 2 has a living space 20 where residents can live. For the sake of distinction, the living space 10 of the lower floor 1 will be referred to as the lower living space 10, and the living space 20 of the upper floor 2 will be referred to as the upper living space 20. The upper living space 20 includes one or more living rooms. The upper living space 20 is a space into which air is directly supplied by an air conditioner. In other words, the upper living space 20 is a space that is directly air-conditioned by air supplied from the air conditioner.

[0017] The upper floor 2 includes an interior panel 22, an insulating panel 24 arranged on the outdoor side of the interior panel 22, an exterior panel 26 arranged on the outdoor side of the insulating panel 24 via a ventilation layer 25, and a floor panel section 28. As shown by the dashed line in Figure 1, the upper floor 2 of the first embodiment is configured so that air passes upward through the ventilation layer 25.

[0018] The upper floor 2 further includes a thermal insulation material 27 on which the lower end of the interior panel 22 is placed. The lower end 242 of the thermal insulation panel 24 protrudes downward further than the lower end of the interior panel 22. The thermal insulation material 27 is located on the indoor side of the lower end 242 of the thermal insulation panel 24. The floor panel portion 28 is located on the indoor side of the thermal insulation material 27. The thermal insulation material 27 is located between the lower end 242 of the thermal insulation panel 24 and the floor panel portion 28 in the indoor / outdoor direction.

[0019] (between floors) The inter-floor section 3 of the main body 7 of the house is formed so as to be located between the lower floor section 1 and the upper floor section 2 in the main body 7 of the house. The lower floor section 1 is located below the inter-floor section 3, and the upper floor section 2 is located above the inter-floor section 3. The inter-floor section 3 has an inter-floor space 30.

[0020] The inter-floor space 30 is the space formed between the ceiling panel 18 of the lower floor 1 and the floor panel 28 of the upper floor 2 located above it. The inter-floor space 30 is a smaller space than the lower living space 10 and the upper living space 20, and unlike the lower living space 10 and the upper living space 20, it does not include a living room. Air conditioned by an air conditioner is not directly sent into the inter-floor space 30. In other words, the inter-floor space 30 is a space that is not directly air-conditioned by an air conditioner.

[0021] The inter-floor section 3 includes metal beams 32 that support the outdoor-side ends of the floor panel sections 28 of the upper floor section 2, and insulation 37 arranged on the outdoor side of the beams 32. The beams 32 are located above the insulation 17 of the lower floor section 1 and below the insulation 27 of the upper floor section 2. The beams 32 are located between the insulation 17 of the lower floor section 1 and the insulation 27 of the upper floor section 2.

[0022] The insulation material 37 in the inter-floor section 3 is an insulation material that forms the boundary between the inter-floor space 30 and the outdoor space in the horizontal direction. In the vertical direction, the insulation material 37 is located between the insulation material 17 in the lower floor section 1 and the insulation material 27 in the upper floor section 2. The insulation material 37 in the inter-floor section 3, the insulation material 17 in the lower floor section 1, and the insulation material 27 in the upper floor section 2 are arranged in a continuous vertical line.

[0023] As shown by the dashed line in Figure 1, in the space S3 located on the outdoor side of the floor section 3 of the first embodiment, air that passes upward through the ventilation layer 15 of the lower floor section 1 flows upward along the insulation material 37 and passes upward through the ventilation layer 25 of the upper floor section 2.

[0024] In addition, as also shown by the dashed line in Figure 1, in the space S3 located on the outdoor side of the floor section 3 of the first embodiment, the air that passes upward through the ventilation hole 63 of the eaves ceiling material 6 hits the insulation material 37, flows upward along the insulation material 37, and passes upward through the ventilation layer 25 of the upper floor section 2.

[0025] (Balcony area) The house main body 7 of the first embodiment further includes a balcony section 4. The balcony section 4 is formed so as to protrude from the upper floor section 2 to the outdoors. A space S3 is located below the balcony section 4. In other words, the balcony section 4 is located above the space S3 located on the outdoors side of the inter-story section 3. A roof covering the balcony section 4 may or may not be installed above the balcony section 4.

[0026] The balcony portion 4 includes a floor panel portion 42 that forms the main body of the balcony portion 4. A metal beam 44 is arranged between the balcony portion 4 and the soffit material 6 located below it. Furthermore, a fascia board 46 is arranged on the outdoor side of the beam 44. The fascia board 46 is positioned so as to close the gap between the outdoor end of the soffit material 6 and the outdoor end of the balcony portion 4.

[0027] Space S3 located on the outdoor side of the floor section 3 is a space sandwiched horizontally between the insulation material 37 of the floor section 3 and the fascia board 46, and also between the eaves ceiling material 6 and the balcony section 4 in the vertical direction.

[0028] (Condensation prevention structure) The condensation prevention structure 9 is a structure for preventing condensation from occurring in the inter-floor section 3 during the hot and humid summer season. The condensation prevention structure 9 includes a through hole 91 provided in the main body 7 of the house, and a blower unit 95 installed in the through hole 91.

[0029] In the first embodiment, the through-hole 91 passes vertically through the ceiling panel portion 18 of the lower floor portion 1. The through-hole 91 vertically connects the inter-floor space 30 of the inter-floor portion 3 and the lower living space 10 of the lower floor portion 1 located below the inter-floor space 30.

[0030] The blower unit 95 includes a blower fan (not shown) therein, and is configured to rotate and drive the blower fan using power supplied from an external source. The blower unit 95 installed in the through-hole 91 forcibly sends air from the lower living space 10 of the lower floor 1 (i.e., air conditioned by an air conditioner in the summer) to a predetermined region R1 in the inter-floor space 30 located above it. In the first embodiment, the air is sent from the blower unit 95 toward the insulating material 37. In other words, the air is sent from the blower unit 95 toward the side of the blower unit 95 where space S3 is located.

[0031] The control device (not shown) that operates the air blower unit 95 is configured to operate the air blower unit 95 only in the hot and humid summer season. Whether or not it is summer is determined based on, for example, the date of the day. Specifically, the control device operates the air blower unit 95 when the date of the day falls within a predetermined period. The predetermined period is preferably set to include at least July and August.

[0032] Region R1 of inter-floor space 30 is an area less airtight than other region R2 (see Figure 2) of inter-floor space 30. Inter-floor space 30 of main body 7 of the house is a space in which airtightness varies, and includes region R1 with relatively low airtightness and other region R2 with relatively high airtightness. In the first embodiment, region R1 into which air from lower living space 10 is forcibly sent through through-hole 91 is an area of ​​inter-floor space 30 adjacent to space S3 covered above by balcony section 4. Region R1 of inter-floor space 30 is located on the opposite side from space S3 below balcony section 4, across insulation 37 that forms the boundary of inter-floor section 3.

[0033] On the outdoor side of region R1, in addition to the air flowing through the ventilation layer 15 of the lower floor 1 and the ventilation layer 25 of the upper floor 2 as described above, air introduced through the space S3 below the balcony 4 hits the insulation material 37. The air that hits the insulation material 37 flows along the insulation material 37. As a result, hot and humid outside air is likely to flow into the inter-floor space 30 through gaps around the insulation material 37. In this sense, region R1 is an area with relatively low airtightness, or in other words, a weak point in the inter-floor airtightness.

[0034] In contrast, another region R2 of the inter-floor space 30 that is relatively airtight is, for example, the region shown in Figure 2. On the outdoor side of the other region R2 of the inter-floor space 30, there is no space S3 below the balcony section 4 as shown in Figure 1. A fascia board 39 is arranged on the outdoor side of the insulation material 37 so as to form an air ventilation layer 38 between the fascia board 39 and the insulation material 37. The fascia board 39 is positioned in vertical communication with the exterior panel 16 of the lower floor 1 and the exterior panel 26 of the upper floor 2, and the air ventilation layer 38 is in vertical communication with the air ventilation layer 15 of the lower floor 1 and the air ventilation layer 25 of the upper floor 2.

[0035] On the outdoor side of the other area R2, the air flowing through the vertically communicating ventilation layers 15, 25, 38 simply flows smoothly along the insulating material 37, so that hot and humid outside air is less likely to flow into the inter-floor space 30. In this sense, area R1 is a relatively airtight area.

[0036] As described above, in a housing main body 7 having an inter-floor section 3, there is a problem in that summer condensation is likely to occur in the inter-floor space 30 of the inter-floor section 3. However, in the first embodiment, conditioned air from the lower living space 10, which has a lower humidity than the outside air, is forcibly sent into the inter-floor space 30 through the operating air blower unit 95, thereby preventing summer condensation from occurring in the inter-floor space 30. In particular, in the first embodiment, conditioned air from the lower living space 10 is forcibly sent toward the region R1 of the inter-floor space 30, which has a relatively low airtightness, thereby effectively preventing summer condensation from occurring in the inter-floor space 30.

[0037] The air volume of the blower unit 95 is, for example, 100 m3 The air volume of the blower unit 95 is 1.9 m per unit floor area of ​​the inter-floor space 30. 3 / h·m 2 It is preferable that this is equal to or greater than this.

[0038] In the first embodiment, a duct (not shown) connected to, for example, a ceiling-mounted air conditioner is arranged in the inter-floor space 30 of the inter-floor section 3, but since the conditioned air is forcibly sent into the inter-floor space 30, condensation on the surface of the duct in the inter-floor space 30 is prevented.

[0039] In the first embodiment, it is also preferable that an air conditioner main body be further disposed in the inter-floor space 30 of the inter-floor section 3. In this case, conditioned air is forcibly sent into the inter-floor space 30, thereby preventing condensation from forming on the surface of the air conditioner main body in the inter-floor space 30.

[0040] 2. Second embodiment A dew condensation prevention structure 9 and a house 8 according to a second embodiment will be described with reference to Fig. 3. However, among the configurations of the second embodiment, the same configurations as those of the first embodiment described above are given the same reference numerals and detailed description thereof will be omitted, and configurations different from those of the first embodiment will be described in detail below.

[0041] FIG. 3 shows the main parts of a house 8 of the second embodiment. The house 8 of the second embodiment comprises a house main body 7 and a condensation prevention structure 9. The house main body 7 of the second embodiment comprises a lower floor section 1, an upper floor section 2, an inter-floor section 3, and a balcony section 4. The upper floor section 2 is located further back indoors than the lower floor section 1. In other words, the lower floor section 1 has a structure in which it protrudes more outdoors than the upper floor section 2. The balcony section 4 is located above, and at a distance above, the part of the lower floor section 1 that protrudes more outdoors than the upper floor section 2.

[0042] Space S3 is located above the protruding portion of the lower floor 1. Space S3 is a space located on the outdoor side of the floor-to-floor section 3 and below the balcony section 4. In space S3, insulation material 35 is placed on top of the ceiling panel section 18 of the lower floor 1. In the second embodiment, the insulation material 17 of the lower floor 1, the insulation material 35 of space S3, the insulation material 37 of the floor-to-floor section 3, and the insulation material 27 of the upper floor 2 are arranged in series.

[0043] In the second embodiment, too, in the summer, the air conditioned in the lower living space 10 is forcibly sent into the inter-floor space 30 through the operating blower unit 95, thereby preventing summer condensation from occurring in the inter-floor space 30.

[0044] In the second embodiment as well, air is sent from the blower unit 95 toward the heat insulating material 37. That is, air is sent from the blower unit 95 toward the side of the blower unit 95 where the space S3 is located.

[0045] 3. Third embodiment A dew condensation prevention structure 9 and a house 8 according to the third embodiment will be described with reference to Fig. 4. However, among the configurations of the third embodiment, the same configurations as those of the first embodiment described above will be assigned the same reference numerals and detailed description will be omitted, and configurations that differ from the first embodiment will be described in detail below.

[0046] Figure 4 shows the main parts of a house 8 of the third embodiment. The house 8 of the third embodiment comprises a house main body 7 and a condensation prevention structure 9. The house main body 7 of the third embodiment comprises a lower floor section 1, an upper floor section 2, an inter-floor section 3, and a roof section 5. The upper floor section 2 is located further back indoors than the lower floor section 1. In other words, the lower floor section 1 has a structure in which it protrudes more outdoors than the upper floor section 2. The roof section 5 is located above, and at a distance above, the part of the lower floor section 1 that protrudes more outdoors than the upper floor section 2.

[0047] The roof section 5 is provided so as to extend outdoors from the exterior panel 26 that forms the outer surface of the upper floor section 2. The roof section 5 is configured with a sloping roof that slopes downward so that the portion located outdoors is positioned lower. The roof section 5 is positioned so as to cover the space S3 located above the outdoor side of the floor section 3.

[0048] Space S3 is located above the protruding portion of the lower floor 1. Space S3 is a space located on the outdoor side of the floor-to-floor section 3 and below the roof section 5. In space S3, insulation material 36 is placed on the ceiling panel section 18 of the lower floor 1. In the third embodiment, the insulation material 17 of the lower floor 1, the insulation material 36 of space S3, the insulation material 37 of the floor-to-floor section 3, and the insulation material 27 of the upper floor 2 are arranged in series.

[0049] In the third embodiment, the area R1 into which air from the lower living space 10 is forcibly sent through the through-hole 91 is an area of ​​the inter-floor space 30 of the inter-floor section 3 adjacent to the space S3 covered by the lower roof section 5.

[0050] On the outdoor side of region R1, in addition to the air flowing through the ventilation layer 15 of the lower floor 1, air flowing along the underside of the roof section 5 hits the insulation material 37 and flows along the insulation material 37. Therefore, hot and humid outside air is likely to flow into the inter-story space 30, which has the insulation material 37 as a boundary with the outdoor space. In this sense, region R1 is a region with relatively low airtightness.

[0051] In the third embodiment, too, in the summer, the air conditioned in the lower living space 10 is forcibly sent into the inter-floor space 30 through the operating blower unit 95, thereby preventing summer condensation from occurring in the inter-floor space 30.

[0052] In the third embodiment, too, air is sent from the blower unit 95 toward the heat insulating material 37. That is, air is sent from the blower unit 95 toward the side of the blower unit 95 where the space S3 is located.

[0053] 4. Fourth embodiment A dew condensation prevention structure 9 and a house 8 according to the fourth embodiment will be described with reference to Fig. 5. However, among the configurations of the fourth embodiment, the same configurations as those of the first embodiment described above will be assigned the same reference numerals and detailed description will be omitted, and configurations that differ from the first embodiment will be described in detail below.

[0054] 5 shows a main part of a house 8 according to a fourth embodiment. The house 8 according to the fourth embodiment includes a house body 7 and a condensation prevention structure 9.

[0055] The housing main body 7 of the fourth embodiment comprises a lower floor section 1, an upper floor section 2, and an inter-floor section 3. The upper floor section 2 and the inter-floor section 3 have a structure that protrudes further outdoors than the lower floor section 1. In other words, the upper floor section 2 includes an overhanging section 21 that protrudes further outdoors than the lower floor section 1, and the inter-floor section 3 includes an overhanging section 31 that protrudes further outdoors than the lower floor section 1.

[0056] The overhang portion 21 of the upper floor 2 includes an outdoor end 201 of the living space 20. The overhang portion 21 of the upper floor 2 also includes an outdoor end 281 of the floor panel portion 28, as well as an interior panel 22, an insulating panel 24, a ventilation layer 25, and an exterior panel 26.

[0057] The overhanging portion 31 of the floor section 3 includes an outdoor end 301 of the floor space 30. A heat insulating material 33 is arranged at the end 301 of the floor space 30. The overhanging portion 31 of the floor section 3 also includes a heat insulating material 37, a ventilation layer 38, and a fascia board 39. Below the overhanging portion 31 of the floor section 3, a soffit material 6 protruding from the upper end of the lower floor section 1 to the outdoor side is located via a ventilation layer 13.

[0058] In the fourth embodiment, the heat insulating material 17 in the lower floor section 1, the heat insulating material 33 and the heat insulating material 37 in the inter-floor section 3, and the heat insulating material 27 in the upper floor section 2 are arranged in series.

[0059] In the fourth embodiment, the region R1 into which air from the lower living space 10 is forcibly sent through the through-hole 91 is a region adjacent to the overhang portion 31 in the inter-floor space 30 of the inter-floor section 3. In other words, the region R1 in the fourth embodiment is a region adjacent to the end portion 301 included in the overhang portion 31 in the inter-floor space 30.

[0060] In the fourth embodiment, in addition to the air flowing through the ventilation layers 15 and 13 of the lower floor 1, air introduced through the ventilation openings 63 of the soffit material 6 hits the insulation material 37 and flows along the insulation material 37. Therefore, hot and humid outside air is likely to flow into the inter-story space 30, which has the insulation material 37 as a boundary with the outdoor space. In this sense, region R1 is a region with relatively low airtightness.

[0061] In the fourth embodiment, too, in the summer, the air conditioned in the lower living space 10 is forcibly sent into the inter-floor space 30 through the operating blower unit 95, thereby preventing summer condensation from occurring in the inter-floor space 30.

[0062] In the fourth embodiment, too, air is sent from the blower unit 95 toward the heat insulating material 37. In other words, air is sent from the blower unit 95 toward the end 301 of the inter-floor space 30.

[0063] 5. Variations The embodiments of the present disclosure are not limited to the above-described embodiments. Various modifications can be made to the configurations of the above-described embodiments depending on the design, etc., as long as the object of the present disclosure can be achieved. Modifications are listed below, but these modifications can also be applied in appropriate combinations.

[0064] In the above embodiment, the air blower unit 95 is configured to operate only in summer, for example, based on the date. However, this is not limited to this. For example, it is also preferable to determine whether it is summer based on the absolute humidity of the outdoor space, and to operate the air blower unit 95 when it is determined to be summer based on the absolute humidity. An example of the absolute humidity threshold is 16 g / kg. When the absolute humidity is 16 g / kg, it is determined to be summer, and the air blower unit 95 is operated. The absolute humidity of the outdoor space is preferably obtained using a hygrometer installed in the outdoor space or from an external device via a communication network.

[0065] In the above embodiment, there is one area R1 in the inter-floor space 30 that is a weak point in airtightness, and one blower unit 95 is installed corresponding to this area, but the number of blower units 95 is not limited to this. If there are multiple areas R1 in the inter-floor space 30 that are weak points in airtightness, it is preferable to install multiple blower units 95 corresponding to these areas. For example, if the house main body 7 has a balcony section 4 and a shed section 5, it is also preferable to install both the blower unit 95 of the first embodiment corresponding to the balcony section 4 and the blower unit 95 of the third embodiment corresponding to the shed section 5.

[0066] When there is one blower unit 95 in the inter-floor space 30, the air volume of the blower unit 95 is 1.9 m per unit floor area of ​​the inter-floor space 30, as described above. 3 / h·m 2 Although this is preferable, when there are a plurality of blower units 95 in the inter-floor space 30, the total air volume is preferably set to be even larger than the air volume of the blower unit 95 when there is only one blower unit 95.

[0067] 6. Summary As is clear from the above embodiment and modified example, the condensation prevention structure (9) of the first aspect of the present disclosure is a condensation prevention structure (9) for preventing summer condensation from occurring in a housing main body (7). The housing main body (7) includes a lower floor section (1) having a lower living space (10), an upper floor section (2) having an upper living space (20), and an inter-floor section (3) having an inter-floor space (30). The inter-floor section (3) is provided between the lower floor section (1) and the upper floor section (2). The condensation prevention structure (9) includes a through-hole (91) and a blower unit (95) installed in the through-hole (91). The through-hole (91) vertically connects the inter-floor space (30) with the lower living space (10) located below it. The blower unit (95) is configured to force air from the lower living space (10) into the inter-floor space (30).

[0068] According to this embodiment, in summer, conditioned air from the lower living space (10) is forcibly sent to the inter-floor space (30) through the air blowing unit (95), thereby preventing summer condensation from occurring in the inter-floor space (30).

[0069] In the dew condensation prevention structure (9) of the second embodiment of the present disclosure, the inter-floor space (30) includes a region (R1) that is less airtight than the other region (R2) in the first embodiment. The through-hole (91) vertically connects the region (R1) of the inter-floor space (30) with the lower living space (10) located below it.

[0070] According to this embodiment, conditioned air from the lower living space (10) is forcibly sent toward the area (R1) of the inter-floor space (30) where hot and humid outside air is likely to enter, thereby effectively preventing summer condensation from occurring in the inter-floor space (30).

[0071] In a condensation prevention structure (9) according to a third aspect of the present disclosure, in the second aspect, the housing main body (7) further includes a balcony section (4) connected to the upper floor section (2) so as to cover a space (S3) located on the outdoor side of the inter-story section (3). The region (R1) is a region of the inter-story space (30) adjacent to the space (S3) across a thermal insulation material (37) provided to form a boundary with the outdoor space.

[0072] According to this embodiment, conditioned air from the lower living space (10) is forcibly sent toward the area (R1) of the inter-floor space (30) where outside air is likely to infiltrate due to the presence of the balcony section (4), thereby effectively preventing summer condensation from occurring in the inter-floor space (30).

[0073] In the dew condensation prevention structure (9) of the fourth aspect of the present disclosure, in the second aspect, the housing main body (7) further includes a lower roof section (5) that covers a space (S3) located on the outdoor side of the lower floor section (1). The region (R1) is a region of the inter-story space (30) adjacent to the space (S3) across a heat insulating material (37) that is provided to form a boundary with the outdoor space.

[0074] According to this embodiment, conditioned air from the lower living space (10) is forcibly sent toward the area (R1) of the inter-floor space (30) where outside air is likely to infiltrate due to the presence of the roof section (5), thereby effectively preventing summer condensation from occurring in the inter-floor space (30).

[0075] In a condensation prevention structure (9) according to a fifth aspect of the present disclosure, in the second aspect, the floor space (3) includes an overhanging portion (31) that protrudes further outdoors than the lower floor space (1). The region (R1) is a region of the floor space (30) adjacent to the overhanging portion (31).

[0076] According to this embodiment, conditioned air from the lower living space (10) is forcibly sent toward the region (R1) of the inter-floor space (30) into which outside air is likely to infiltrate due to the presence of the overhanging portion (31), thereby effectively preventing summer condensation from occurring in the inter-floor space (30).

[0077] In a dew condensation prevention structure (9) according to a sixth aspect of the present disclosure, in any one of the first to fifth aspects, the air blowing unit (95) is configured to operate only in summer.

[0078] According to this embodiment, the air blowing unit (95) is operated only in the hot and humid season, thereby making it possible to effectively prevent summer dew condensation.

[0079] In a dew condensation prevention structure (9) of a seventh aspect of the present disclosure, in any one of the first to sixth aspects, a duct connected to an air conditioner is provided in the inter-floor space (30).

[0080] According to this embodiment, the conditioned air is forcibly sent into the inter-floor space (30), which effectively prevents condensation from forming on the surfaces of the ducts in the inter-floor space (30).

[0081] A house (8) according to an eighth aspect of the present disclosure includes a condensation prevention structure (9) according to any one of the first to seventh aspects, and a house main body (7) provided with the condensation prevention structure (9).

[0082] According to this embodiment, in summer, conditioned air from the lower living space (10) is forcibly sent to the inter-floor space (30) through the air blowing unit (95), thereby preventing summer condensation from occurring in the inter-floor space (30). [Explanation of symbols]

[0083] 1 Lower floor 10 Lower living space 2 Upper floors 20 Upper living space 3rd floor 30-story space 31 Overhang 37 Insulation 4 Balcony area 5 Lower room 7. Housing 8. Housing 9 Anti-condensation structure 91 Through hole 95 Blower unit S3 space R1 area R2 Other areas

Claims

1. A condensation prevention structure for preventing summer condensation from occurring on a house body, The housing body includes: a lower floor having a lower living space; an upper floor having an upper living space; An inter-floor section provided between the lower floor section and the upper floor section and having an inter-floor space, The condensation prevention structure is A through hole that vertically connects the inter-floor space and the lower living space located below it; a blower unit installed in the through-hole and configured to forcibly send air from the lower living space into the inter-floor space, Anti-condensation structure.

2. the inter-floor space includes an area that is less airtight than other areas; The through-hole vertically connects the area of ​​the inter-floor space with the lower living space located below it. The condensation prevention structure according to claim 1.

3. The housing body includes: Further provided is a balcony portion connected to the upper floor portion so as to cover a space located on the outdoor side of the floor portion, The area is an area of ​​the inter-floor space adjacent to the outdoor space, with a thermal insulation material provided to form a boundary with the outdoor space between the area. The condensation prevention structure according to claim 2.

4. The housing body includes: Further provided is a roof section that covers a space located on the outdoor side of the lower floor section, The area is an area of ​​the inter-floor space adjacent to the outdoor space, with a thermal insulation material provided to form a boundary with the outdoor space between the area. The condensation prevention structure according to claim 2.

5. The floor section includes an overhang section that protrudes further outdoors than the lower floor section, The area is an area of ​​the inter-floor space adjacent to the overhang portion, The condensation prevention structure according to claim 2.

6. The blower unit is configured to operate only in summer. The condensation prevention structure according to any one of claims 1 to 5.

7. A duct connected to an air conditioner is arranged in the inter-floor space. The condensation prevention structure according to any one of claims 1 to 5.

8. The condensation prevention structure according to claim 1 or 2, The housing body provided with the condensation prevention structure, Housing.

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