JP2001152568A - Dwelling structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously ensure both the high energy saving property and the sufficient ventilation. SOLUTION: An underfloor space 2 is of a closed heat insulation structure, a space Sw between walls is provided between an internal wall 3 and an external wall 4, a ventilation unit 5 having the heat exchanging function between the air Ai in a room R which is discharged outdoors and the outside air Ao to be taken from the outdoor side is arranged, and an air feed passage F to feed the outside air Ao taken in through the ventilation unit 5 to the underfloor space 2, and then, feed the air As in the underfloor space 2 to the space Sw between the walls, and further feed the air As in the space Sw between the walls into the room R from air outlets 6... provided in the internal wall 3 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing structure, and more particularly, to a housing structure of a highly insulated and airtight house having a ventilation function.

[0002]

2. Description of the Related Art Hitherto, highly insulated and airtight houses for the purpose of improving energy saving are known, and this kind of highly insulated and airtight house usually secures ventilation because of its high airtightness. It has a ventilation function for

[0003] In such a highly insulated and airtight house, the contradiction is that if energy saving is to be enhanced, the ventilation is impaired, whereas if the ventilation is to be enhanced, the energy saving is impaired. There are issues to be solved. Therefore, in the conventional house structure, there is a problem that the energy saving is considerably sacrificed by providing the ventilation function. Housing structure was required.

[0004] The present invention has been made in response to such a conventional demand, and in particular, has an object to provide a housing structure capable of simultaneously ensuring both high energy saving and sufficient ventilation.

[0005]

A housing structure M according to the present invention has a closed and heat-insulating structure under the floor 2, provides a space Sw between the inner wall 3 and the outer wall 4, and discharges the air to the outside. Air Ai inside room R and outside air A taken from outside
The ventilation unit 5 having a heat exchange function of o is disposed, and after the outside air Ao taken in through the ventilation unit 5 is sent to the underfloor 2, the air As under the underfloor 2 is sent to the inter-wall space Sw,
Further, an air supply passage F for supplying the air As in the inter-wall space Sw from the air supply ports 6 provided on the inner wall 3 to the room R is provided.

In this case, according to a preferred embodiment, the inner wall 3 includes one or both of the side wall 3w and the ceiling 3u. The air supply passage F from below the floor to the first floor can use the gap between the bases 11 and the joists 12. The air supply passage F from the first floor to the second floor can be formed by the ventilation grooves 14 formed in the beams 13. ... can be performed. Further, an air purifying material for purifying the air by contacting the outside air Ao taken in through the ventilation unit 5 can be arranged in the air supply passage F. As the air purifying material, ceramic materials 15a,. Lumber 15b
One or both of ... can be used.

[0007]

Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

First, the structure of a house structure M according to this embodiment will be described with reference to FIGS.

In FIG. 1, reference numeral 20 denotes a fabric foundation formed by concrete. Since the cloth foundation 20 rises upward from the concrete floor 21 cast on the ground, and the underfloor 2 described later needs to have a closed structure, the cloth foundation 20 located on the outer side is not provided with an opening and a notch. Note that a crushed stone 22 is laid below the concrete floor 21, and the extruded polystyrene insulation board 2 is laid on the crushed stone 22.
3 and a moisture-proof sheet 24 is laid on the heat insulating board 23. And this moistureproof sheet 24
A concrete floor 21 is cast on the top.

On the other hand, as shown in FIG. 2, the bases 11 are placed on the upper end surface of the cloth base 20 with packings 25 for improving airtightness interposed therebetween. And the joists 12 shown in FIG. 3 are installed at predetermined intervals. Also, as shown in FIG. 2, a bundle 26 is erected on the concrete floor 21 and a large 27 is placed on the bundle 26.
To support joists 12 ... 28 ... are bundles 26
This is a vibration damper attached to ... Then, a floor material 29 is laid on the joists 12. The floor material 29 is composed of a base plate (plywood) 29d constituting the lower layer and a floor material (flooring, tatami etc.) 29u constituting the upper layer.

Further, columns 30 are erected on the bases 11 and beams 13 are erected on the upper ends of the columns 30. FIG. 1 shows a case of a one-story house. 2 and 3 show a two-story house,
On the beams 13, the joists 31 are erected at predetermined intervals, and on the joists 31, the floor material 3 similar to the floor material 29 is provided.
Lay 2 In this case, as shown in FIG.
A plurality of vertical ventilation grooves 14 are formed at predetermined intervals on the outer surface of the beam 13, and the lower space and the upper space with respect to the beams 13 communicate with each other through the ventilation grooves 14. In addition, beam 13
A column 33 is erected on the column, and a beam similar to the beam 13 is erected on the column 33.

On the other hand, the cloth foundation 20, the base 11,...
, The outer surfaces of the structural members including the beams 13 and the pillars 33 are covered with an insulating board 34 made of extruded expanded polystyrene.
The inside of the heat insulating boards 34 is made a closed space. Exterior members 35 are provided outside the heat insulating boards 34 with a certain gap So. In this case, as shown in FIG. 2, the lower side of the exterior members 35... Is located near the upper end of the cloth foundation 20 to provide the lower vent Soi. On the other hand, the upper ends of the exterior materials 35 are led to the roof material 36, and the gap So is communicated with a ventilation window (ventilation register) 37 provided in the attic. Further, an outer surface portion of the heat insulating boards 34 that is not covered with the exterior material 35 is covered with mortar 38, and a foamed polyurethane 39 is sprayed on the inner surface of the heat insulating boards 34 and the upper surfaces of the bases 11 and the like. Thereby, heat insulation and airtightness are improved.

With the above structure, the outside including the heat insulating boards 34 becomes the outer wall 4. The outer wall 4 is provided with an insulating board 34
.. And the thickness of the foamed polyurethane 39 are taken into consideration to ensure the heat insulation and airtightness of the inner and outer wall surfaces of a general house. Therefore, in the case of the house structure M according to the present invention, the inside from the heat insulating boards 34 can be regarded as a room.

On the other hand, as shown in FIG. 2, an inner surface of each of the columns 30 is attached to an inner surface of each of the joists 31. As shown in FIG. Are provided with ceiling members 42. Accordingly, the side walls 3w are formed by the interior materials 41, and the ceiling 3u is formed by the ceiling materials 42, and the side walls 3w and the ceiling 3u become the inner wall 3. With such a configuration, an inter-wall space Sw is provided between the inner wall 3 and the outer wall 4. In addition, the space Sw between the walls
Can be provided by both the side wall 3w and the ceiling 3u, or can be provided only by the side wall 3w by providing a partition for blocking the inter-wall space Sw at the upper end of the side wall 3w. Air supply ports 6 are provided in the upper part of the side wall 3w to connect the inter-wall space Sw with the room R.

On the other hand, a ventilation unit 5 is provided behind the ceiling. The ventilation unit 5 has a heat exchange function and a ventilation function, and an air supply duct 51 for taking in the outside air Ao into the ventilation unit 5 and an exhaust duct 52 for discharging the air Ai in the room R from the ventilation unit 5 face the outside. In addition, an intake duct 53 that takes in the air Ai in the room R into the ventilation unit 5 allows the ventilation unit 5 to face the room R from the ceiling 3u.
An air supply duct 54 that sends out outside air Ao from the outside faces the inside of the underfloor 2. A clean box 5 is provided at the end of the air supply duct 54 which is introduced into the inside of the underfloor 2 and branched.
5 and 56 are connected to each other. In this case, as shown in FIG.
A large number of plate-shaped ceramic members 15a are built in a box having a plurality of through-holes 5 as shown in FIG.
A large number of carbon materials 15b can be built in a box having 6s. Such a ceramic material 15a ...
And carbon materials 15b are dehumidifying function, deodorizing function and VOC
(Volatile organic compound) It is known to have an adsorbing function and the like, and is used as an air purifying material for purifying air by contacting taken-in outside air Ao.

With this configuration, the underfloor 2 is mounted on the base 1
Except for the gap formed by 1 and the joists 12 and the air supply duct 54, the space becomes a closed and heat-insulated space, and the underfloor 2 can be regarded as a part of the room. Further, the air supply duct 54, the clean boxes 55 and 56, the underfloor 2, the gap between the base 11 and the joist 12, the inter-wall space Sw, and the air supply ports 6 are provided by the outside air Ao (As) sent from the ventilation unit 5. Is configured as an air supply passage F through which the air flows, and the whole has a closed and heat-insulated structure for outdoor use. In addition, the air supply passage F from the underfloor 2 to the first floor is:
A gap between the base 11 and the joist 12 is used, and the air passage F from the first floor to the second floor is formed by the ventilation grooves 14 formed in the beams 13. There is an advantage that it can be implemented easily and at low cost without construction.

Next, the ventilation function in the house structure M according to the embodiment will be described with reference to the drawings.

First, the outside air Ao is taken into the ventilation unit 5 through the air supply duct 51 by the ventilation function provided in the ventilation unit 5, and the air Ai in the room R is sucked into the ventilation unit 5 through the intake duct 53. And, by the heat exchange function of the ventilation unit 5, the outside air Ao is
The outside air Ao that is heat-exchanged with the air Ai in the room R and is heat-exchanged
Is supplied to the underfloor 2 through the air supply duct 54 and the clean boxes 55 and 56. The air Ai in the room R that has undergone heat exchange by the ventilation unit 5 is discharged outside through the exhaust duct 52.

On the other hand, the outside air Ao supplied to the underfloor 2 is purified by the clean boxes 55 and 56. That is, the outside air Ao contacts the ceramic material 15a and the carbon material 15b and performs dehumidification, deodorization, VOC (volatile organic compound) adsorption, and the like. Therefore, for example, even if the outside air Ao built along the road and taken in is dirty, it is purified by the clean boxes 55 and 56 and supplied to the underfloor 2. Further, the purified air As under the floor 2 passes through a gap formed by the base 11 and the joist 12,
It enters the space Sw between the walls, and is further supplied to the room R through the air supply ports 6. The outside air Ao is supplied to the lower vent Soi.
Through the gap So, and through the gap So, the ventilation window 3
7, the prevention of dew condensation and the like is achieved.

According to the housing structure M according to the present embodiment (FIG. 1), the temperature of the outside air Ao is reduced to 0 by using the ventilation unit 5 having a heat exchange rate of 68% in the experiment.
[° C], when the temperature of the room R is 20 [° C], the air supply port 6 ...
The temperature of the air As flowing in from the stationary state is 11.
7 ° C., and the heat loss in the air supply passage F was slight. Therefore, heating in the room R is 11.7.
It is sufficient to raise the temperature by 8.3 [° C] from [° C] to 20 [° C].

As described above, the present invention focuses on the underfloor 2 in a house where heat is most taken away, constructs a structure in which the underfloor 2 can be regarded as a part of a room, and also establishes a structure outside the inner wall 3. Since the inter-wall space Sw can be considered, both high energy saving and sufficient ventilation can be secured at the same time.

The embodiment has been described in detail above.
The present invention is not limited to such an embodiment,
The configuration, shape, material (material), quantity, and the like of the details can be arbitrarily changed, added, or deleted without departing from the gist of the present invention.

[0023]

As described above, the housing structure according to the present invention has the following features.
The underfloor has a closed insulation structure, and a space between walls is provided between the inner and outer walls, and a ventilation unit is installed that has a heat exchange function between the indoor air discharged to the outside and the outside air taken in from the outside. After sending the outside air under the floor, the air under the floor is sent to the space between the walls, and further, an air supply passage for supplying the air in the space between the walls to the room from the air supply port provided on the inner wall is provided. It produces such remarkable effects.

[0024] Both high energy saving and sufficient ventilation can be secured at the same time in a highly insulated and airtight house, and a comfortable living environment can be obtained.

According to a preferred embodiment, an air supply passage from under the floor to the first floor utilizes a gap between the base and the joist, and an air supply passage from the first floor to the second floor is formed by a ventilation groove formed in a beam. By doing so, it can be implemented easily and at low cost without constructing a special air supply passage.

According to a preferred embodiment, an air purifying material for purifying air by contacting the outside air taken in through the ventilation unit in the air supply passage, specifically, a ceramic material or a carbon material is provided. For example, built along the road,
Purified air can be taken in even when the outside air is dirty.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a housing structure according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view illustrating a part of the house structure,

FIG. 3 is a perspective view showing a part of the house structure,

FIG. 4 is a perspective view of a clean box used for the house structure.

FIG. 5 is a perspective view of another clean box used for the house structure.

[Explanation of symbols]

 2 Under floor 3 Inner wall 3w Side wall 3u Ceiling 4 Outer wall 5 Ventilation unit 6 ... Air supply port 11 ... Base 12 ... Joist 13 ... Beam 14 ... Ventilation groove 15a ... Ceramic material 15b ... Carbon material M Residential structure Sw Wall space R Room Ai Air Ao Outside air As Air F Air supply passage

Continued on front page F term (reference) 2E001 DB01 DB02 DC02 DD01 DD15 DD18 FA03 FA11 FA15 FA17 FA21 FA24 FA34 GA06 GA24 HA14 HC05 HD03 HD09 HF03 KA01 NA02 ND06 ND14 ND16 ND17 ND22 3L056 BA05 3L080 AC02 AC03

Claims (6)

[Claims] 1. A ventilation unit having a closed heat insulation structure under the floor, an inter-wall space provided between an inner wall and an outer wall, and a heat exchange function for exchanging indoor air discharged outside and outdoor air taken in from outside. After sending outside air taken in through the ventilation unit to the floor, the air under the floor is sent to the space between the walls, and the air in the space between the walls is further supplied to the room from an air supply port provided on the inner wall. A residential structure characterized by having a passage. 2. The housing structure according to claim 1, wherein the inner wall includes one or both of a side wall and a ceiling. 3. The housing structure according to claim 1, wherein the air passage from the underfloor to the first floor uses a gap between a base and a joist. 4. The housing structure according to claim 1, wherein an air supply passage from the first floor to the second floor is formed by a ventilation groove formed in a beam. 5. The house structure according to claim 1, wherein an air purifying material for purifying air by contacting outside air taken in through the ventilation unit is provided in the air supply passage. 6. The house structure according to claim 1, wherein the air purifying material includes one or both of a ceramic material and a carbon material.