JP6496190B2 - Housing and ventilation method - Google Patents

Description

  The present invention relates to a house capable of preventing condensation and a ventilation method thereof.

  For example, a reform has been proposed in which a heat insulating material formed in a panel shape is additionally attached to an existing housing component (for example, see Patent Document 1 below). Such a reform can easily improve the heat insulation without rebuilding the house.

Japanese Patent Laying-Open No. 2015-071941

  By the way, there is a problem that if the heat insulating material is additionally applied to all the outer wall lines of the house, the reform cost increases. For this reason, in recent years, among the residential sections in a house, for example, a section insulation that adds a heat insulating material to only some of the residential sections on the main live activity line including a living room, kitchen, bathroom, toilet, etc. Renovation has been proposed.

  However, the compartment insulation reform has the following problems. For example, in the winter season, the first residential section to which the heat insulating material is additionally attached is on the live activity line, and therefore tends to be hot and humid as compared to the second residential section in the non-live activity line. On the other hand, the second residential section to which the heat insulating material is not additionally bonded is likely to be low in temperature and humidity as compared with the first residential section. Therefore, when the humid air in the first living space flows into the low-temperature second living section, there is a problem that condensation easily occurs in the second living space.

  The present invention has been devised in view of the above circumstances, and a main object thereof is to provide a house capable of preventing condensation while improving the heat insulating property of a living section, and a ventilation method thereof.

In the present invention, a first living section surrounded by a heat insulating material and a second living section surrounded by a heat insulating material that is not surrounded by the heat insulating material or lower in performance than the heat insulating material are provided adjacent to each other. An exhaust means for exhausting the air in the first living section to the outside, and a supply for supplying outside air to the second living section to bring the second living section into a positive pressure state. Air means, partitioning means for allowing the first living area and the second living area to communicate with each other in a breathable manner , a determination unit that determines whether or not the current time is winter, and the determination unit is currently in winter And a controller that operates the air supply means so that the outside air is supplied to the second living section .

  In the house according to the present invention, it is preferable that the air supply means supplies air in an underfloor space to the second living section.

  In the house according to the present invention, when the determination unit determines that the present time is other than the winter season, the control unit supplies outside air to the first living section to positively pressure the first living section. It is desirable to operate the air supply means for setting the state.

  In the house according to the present invention, it is desirable that the first living section is pasted with an additional heat insulating material on the existing house constituent material by renovation.

The present invention relates to partition means capable of ventilating a first living section surrounded by a heat insulating material and a second living section surrounded by a heat insulating material that is not surrounded by the heat insulating material or has a lower performance than the heat insulating material. A method for ventilating a house provided adjacent to each other through the step of determining whether or not the present is winter, and when it is determined that the present is winter, Supplying outside air to bring the inside of the second living compartment into a positive pressure state, and discharging the air that has entered the first living compartment from the second living compartment in the positive pressure state via the partition means to the outside And a step.

  The house of 1st invention of this application is the 1st living section enclosed by the heat insulating material, and the 2nd living section surrounded by the heat insulating material which is not surrounded by the heat insulating material or whose performance is lower than the said heat insulating material. Are provided adjacent to each other. Such a house can reduce the cost of the heat insulating material.

  In addition, the house has an exhaust means for exhausting the air in the first living section to the outside, and an air supply means for supplying outside air to the second living section to bring the second living section into a positive pressure state. And partitioning means for allowing the first living section and the second living section to communicate with each other so as to allow ventilation. In such a house, the inside of the second living section can be brought into a positive pressure state. For example, in the winter, the air in the first living section that tends to be relatively humid is relatively low in temperature. 2 It can prevent being supplied to the residential area. Therefore, the house according to the first invention of the present application can prevent the occurrence of condensation while improving the heat insulation of the living section.

  The ventilation method of the house of the second invention of the present application is the first living section surrounded by the heat insulating material, and the second living space surrounded by the heat insulating material that is not surrounded by the heat insulating material or lower in performance than the heat insulating material. It is used for a house provided adjacent to each other through partitioning means capable of venting the compartment. Such a house can reduce the cost of the heat insulating material.

  The method for ventilating the house includes a step of supplying outside air to the second living section and setting the inside of the second living section in a positive pressure state, and the first living section through a partitioning means from the second living section in the positive pressure state. And the step of discharging the air that has entered into the outside. Such a ventilation method of a house makes it possible to make the inside of the second living section have a positive pressure. For example, in the winter season, the air in the first living section that tends to be relatively humid becomes relatively low in temperature. It can prevent being supplied to the easy 2nd living section. Therefore, the house ventilation method according to the second invention of the present application can prevent the occurrence of condensation while enhancing the heat insulation of the living section.

It is sectional drawing which shows an example of the house of this embodiment. It is sectional drawing of the house of FIG. It is a perspective view which shows an example of a heat insulating material. It is sectional drawing of the house explaining the ventilation method of this embodiment. It is sectional drawing which shows an example of the house of other embodiment of this invention. It is sectional drawing of the house explaining the ventilation method of other embodiment of this invention. It is a block diagram of a judgment part and a control part. It is a flowchart which shows an example of the procedure of the ventilation method of further another embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view showing an example of a house according to the present embodiment. FIG. 2 is a cross-sectional view of the house of FIG. The house Br of the present embodiment includes an underfloor space 2 and a plurality of living sections 3. In addition, although the case where the house Br of this embodiment is a one-story house is illustrated, it may be a house of two stories or more.

  The underfloor space 2 is a non-residential section surrounded by the foundation 5, the ground 6 and the floor 7. The underfloor space 2 is provided with an intake 8 for introducing fresh outside air Ao.

  The outside air Ao supplied from the intake port 8 is heat-exchanged with the ground cooling heat H through the ground 6 in the underfloor space 2. Thereby, the air Af in the underfloor space 2 (hereinafter sometimes simply referred to as “underfloor air”) Af can be higher than the outside air in the winter and lower than the outside air in the summer. The ground 6 of the underfloor space 2 is finished with, for example, dirt concrete. Moreover, the heat insulating material 9 is arrange | positioned at the lower surface of the floor 7 of this embodiment.

  The plurality of living sections 3 are provided above the underfloor space 2. The living section 3 of the present embodiment includes, for example, a living room 11a, a kitchen 11b, a corridor 11c, a washroom 11e, a bathroom 11f, a toilet 11g, and a Japanese-style room 12a. Each living section 3 is divided by, for example, an outer wall panel 15, a partition panel 16, a door (including a fence) 17, a window 18, a ceiling 19, or a floor 7.

  In the house Br of the present embodiment, the first living section 3A surrounded by the heat insulating material 21 and the second living section 3B not surrounded by the heat insulating material 21 are provided adjacent to each other.

  The first living section 3A and the second living section 3B are composed of at least one living section 3 among the living sections 3 (for example, the living room 11a). Therefore, in the housing Br of this embodiment, a so-called section heat insulation reform is performed in which the heat insulating material 21 is added only to a part of the living section 3 (that is, the first living section 3A). Such compartment heat insulation reform can suppress the usage-amount of the heat insulating material 21 compared with the case where all the residential divisions 3 are enclosed with the heat insulating material 21, for example. Therefore, the house Br of this embodiment can reduce the cost of the heat insulating material 21.

  Here, “surrounded by the heat insulating material” means that the heat insulating material 21 is substantially continuously arranged around the first living section 3A. In addition, the heat insulating material 21 is arrange | positioned except opening parts, such as the window 18 and the door 17, etc. which are provided in 3A of 1st residence sections. Therefore, “surrounded by the heat insulating material” includes a mode in which the heat insulating material 21 is partially interrupted and arranged around the first living section 3A.

  In the first living section 3A of the present embodiment, for example, the heat insulating material 21 is additionally attached to the existing house constituent material 22. As the house constituent material 22 to which the heat insulating material 21 is additionally attached, for example, the outer wall panel 15, the partition panel 16, the ceiling 19 and the floor 7 of the first living section 3A are included.

  FIG. 3 is a perspective view showing an example of the heat insulating material 21. The heat insulating material 21 of this embodiment is formed in the plate shape of a front view rectangle, for example. One surface 21a of the heat insulating material 21 of the present embodiment is a surface to be attached to the house constituent material 22 (for example, the outer wall panel 15, the partition panel 16, the ceiling 19 or the floor 7 of the first living section 3A). A plate member 23 having a substantially rectangular shape in front view is fixed to the other surface 21 b of the heat insulating material 21. Such a plate member 23 can form a new wall surface, floor surface or ceiling surface at the same time that the heat insulating material 21 is affixed to the existing house constituent material 22, so that the efficiency of reform can be increased. .

  Various materials can be used for the heat insulating material 21 and the plate material 23. As an example of the heat insulating material 21, for example, urethane foam, polystyrene foam, phenol home, or the like may be employed. As an example of the plate member 23, for example, a gypsum board or a structural plywood may be employed. Further, for fixing the heat insulating material 21 to the existing house constituent material 22, for example, a fixing tool such as a screw or an adhesive is used. In addition, the heat insulating material 21 is not necessarily limited to a plate-shaped thing, For example, a bubble-shaped heat insulating material may be directly sprayed on the existing house structural material 22, and may be formed.

  As shown in FIG. 2, the first living section 3A of the present embodiment is on a main living activity line including, for example, a living room 11a, a kitchen 11b, a hallway 11c, a washroom 11e, a bathroom 11f, or a toilet 11g. It is configured to include a certain residential section 3.

  The heat insulating material 21 surrounding the outer periphery of the first living section 3A is affixed to the outer wall panel 15 that separates the living room 11a, the kitchen 11b, the washroom 11e, the bathroom 11f, and the toilet 11g. Furthermore, the heat insulating material 21 is a partition panel 16 that partitions between the living room 11a and the entrance 13, between the hallway 11c and the entrance 13, between the hallway 11c and the Japanese room 12a, and between the toilet 11g and the Japanese room 12a. Is pasted. Accordingly, the heat insulating material 21 surrounds the first living section 3A (in the present embodiment, the living room 11a, the kitchen 11b, the hallway 11c, the washroom 11e, the bathroom 11f, and the toilet 11g) in plan view. it can. Moreover, as FIG. 1 shows, the heat insulating material 21 is each affixed on the ceiling 19 and the floor | bed 7 of each living division 3 which comprises 3 A of 1st living divisions. Thereby, the heat insulating material 21 is arrange | positioned surrounding 3 A of 1st residential divisions.

  Such a first living section 3A can minimize the temperature difference between the respective living sections 3 on the live activity line. Therefore, the house Br of the present embodiment can effectively prevent the occurrence of heat shock and indoor heat stroke in, for example, a bathroom and a toilet. As for the window 18 arrange | positioned at 3A of 1st residence divisions, it is desirable to employ | adopt a pair glass. Thereby, the heat insulation of 3 A of 1st residential divisions can be improved further.

  As described above, the second living section 3B is a living section that is not surrounded by the heat insulating material 21 (that is, the heat insulating material 21 is not additionally attached). The second living section 3B of the present embodiment is configured to include the living section 3 in the non-live activity line including the Japanese-style room 12a. The second residence section 3B has less resident residence time than the first residence section 3A. For this reason, even if the heat insulating material 21 is not additionally attached to the second living section 3B, the comfort of the house Br is maintained.

  By the way, in the house Br in which the partition heat insulation reform as described above is constructed, in winter, the first living section 3A on the live activity line is higher in temperature and humidity than the second living section 3B in the non-live activity line. It is easy to become. On the other hand, the second residential section 3B to which the heat insulating material 21 is not additionally bonded is likely to be low in temperature and humidity compared to the first living section 3A to which the heat insulating material 21 is additionally bonded. Therefore, when the highly humid air Ar in the first living section 3A flows into the low temperature second living section 3B, there is a problem that condensation is likely to occur in the second living section 3B.

  In order to prevent such condensation, the house Br of the present embodiment is provided with an exhaust means 25, an air supply means 26, and a partition means 27.

  The exhaust means 25 is for exhausting the air Ar of the first living section 3A to the outside. The exhaust means 25 of the present embodiment includes an exhaust hole 25a that opens the outer wall panel 15 provided in the first living section 3A, and an opening / closing means 25b that opens and closes the exhaust hole 25a. Such an exhaust means 25 can exhaust the air Ar that has entered the first living section 3A to the outside. The exhaust hole 25a of this embodiment is provided in the outer wall panel 15 of the living room 11a that constitutes the first living section 3A. Such exhaust holes 25a can effectively ventilate the living room 11a where the resident's stay time is the longest.

  The air supply means 26 (hereinafter, also referred to as “second air supply means 26B”) supplies the outside air Ao to the second living section 3B to bring the second living section 3B into a positive pressure state. Is. The 2nd air supply means 26B of this embodiment is comprised including the 2nd air flow path 31b, the 2nd extraction port 32b, the 2nd blower outlet 33b, and the 2nd ventilation means 34b.

  The second air flow path 31b extends vertically inside the partition panel 16. Although the 2nd air flow path 31b of this embodiment is formed in the partition panel 16 arrange | positioned between the Japanese-style room 12a and the entrance 13, it is not necessarily limited to such an aspect.

  The second outlet 32b is provided below the second air flow path 31b, and communicates between the second air flow path 31b and the underfloor space 2. The 2nd blower outlet 33b is provided above the 2nd air flow path 31b, and has communicated between the 2nd air flow path 31b and the 2nd living division 3B (this embodiment Japanese-style room 12a). The second outlet 32b and the second outlet 33b can communicate the underfloor space 2 and the second living section 3B via the second air flow path 31b.

  The 2nd ventilation means 34b is provided in the 2nd outlet 32b, for example. The 2nd ventilation means 34b of this embodiment is comprised as a fan which ventilates from the underfloor space 2 side to the 2nd air flow path 31b side. Note that the air supply amount of the second air blowing unit 34b is preferably set based on, for example, the number of ventilations required for the house Br (for example, 0.5 times / h).

  The second air supply unit 26B is configured such that when the second air blowing unit 34b is operated, the underfloor space 2 is set to a negative pressure, and the underfloor air Af (that is, the outside air Ao supplied to the underfloor space 2) is It can supply to the 2nd living division 3B (this embodiment Japanese-style room 12a) via the 2nd air flow path 31b and the 2nd blower outlet 33b. Thereby, the 2nd air supply means 26B can make the inside of the 2nd living division 3B into a positive pressure state.

  The partition means 27 is for communicating the first living section 3A and the second living section 3B so as to allow ventilation. The partition means 27 of the present embodiment is a through-hole that communicates between the first living section 3A and the second living section 3B in the partition panel 16 provided between the first living section 3A and the second living section 3B. 27a. Such a through-hole 27a allows the air Ar of the second living section 3B to enter the first living section 3A, so that the first living section 3A and the second living section 3B communicate with each other in a breathable manner. Can do. Although the partition means 27 of this embodiment is formed in the partition panel 16 arrange | positioned between the corridor 11c of the 1st living section 3A, and the Japanese-style room 12a of the 2nd living section 3B, it is limited to such an aspect. It is not done. In addition, it can replace with the partition panel 16 and the through-hole 27a, and can also utilize the clearance gap and undercut around a fitting.

  Next, a ventilation method for the house Br according to the present embodiment (hereinafter, simply referred to as “ventilation method”) will be described. FIG. 4 is a cross-sectional view of the house Br for explaining the ventilation method of the present embodiment. In the ventilation method of this embodiment, 1st step S1 and 2nd step S2 are implemented. In this embodiment, the first step S1 and the second step S2 are performed simultaneously, but may be performed separately.

  As shown in FIGS. 1 and 4, in the first step S1, first, the second air blowing means 34b of the second air supply means 26B is operated. Thereby, in 1st step S1, underfloor air Af (namely, the outside air Ao supplied to underfloor space 2) is supplied to 2nd living section 3B (this embodiment Japanese-style room 12a), and 2nd living section 3B. Can be brought into a positive pressure state. The second living section 3 </ b> B and the first living section 3 </ b> A are in fluid communication with each other through the partitioning means 27. For this reason, the air Ar in the 2nd living section 3B used as the positive pressure state can be made to enter into the 1st living section 3A.

  In the second step S2, the opening / closing means 25b (shown in FIG. 1) of the exhaust means 25 is opened. Thereby, the air Ar that has entered the first living section 3A (in the present embodiment, the living room 11a, the kitchen 11b, and the hallway 11c) from the second living section 3B can be discharged to the outside through the exhaust means 25. . When the opening / closing means 25b is opened in advance, the operation of the second step S2 is omitted. Further, the air Ar that has entered the other living section 3 (in the present embodiment, the washroom 11e, the bathroom 11f, and the toilet 11g) from the second living section 3B is a gap formed in each living section 3 (not shown). It is discharged to the outside through.

  As described above, the house Br and the ventilation method of the present embodiment forcibly supply the outside air Ao (underfloor air Af) into the living section 3 (in the present embodiment, the second living section 3B), and the living section 3 (In this embodiment, the house Br can be effectively ventilated as the second type ventilation that naturally exhausts the air Ar in the first living section 3A). In addition, it is not necessarily limited to the second type ventilation.

  Furthermore, since the house Br and the ventilation method of the present embodiment can make the second living section 3B (in this embodiment, the Japanese-style room 12a) a positive pressure state, the humidity becomes relatively high in winter. It is possible to prevent the air Ar in the first living section 3A that is easy to be supplied to the second living section 3B that tends to be relatively low in temperature. Therefore, the house Br and the ventilation method of the present embodiment can prevent the occurrence of dew condensation in the second living section 3B while enhancing the heat insulating property of the first living section 3A.

  The second air supply means 26B of the present embodiment supplies the underfloor air Af having a temperature higher than the outside air Ao in the winter to the second living section 3B that tends to be low in temperature. For this reason, since the 2nd air supply means 26B can prevent the temperature fall of the 2nd living section 3B which is not surrounded by the heat insulating material 21, it can prevent the dew condensation of the 2nd living section 3B effectively. Furthermore, since the underfloor air Af having a higher temperature than the outside air Ao is supplied to the first living section 3A via the second living section 3B, the heating efficiency can be increased.

  Although the case where the 2nd living section 3B of this embodiment is a living section which is not surrounded by the heat insulating material 21 was illustrated, it is not necessarily limited to this. The second living section 3B may be surrounded by a heat insulating material (not shown) having a lower performance than the heat insulating material 21 surrounding the first living section 3A, for example. Such 2nd residential division 3B can improve the heat insulation of the whole house Br, reducing the cost of the heat insulating material 21. FIG.

  By the way, except for the winter season (for example, summer), the second residential section 3B that is not on the live activity line has less time for cooling operation than the first residential section 3A that is on the live activity line. For this reason, the 2nd residential section 3B tends to become high temperature compared with 3A of 1st residential sections. Therefore, when the high-temperature air Ar in the second living section 3B flows into the cooled first living section 3A, the cooling efficiency of the first living section 3A is likely to decrease. Moreover, when the humidity of the 2nd living section 3B is high, there also exists a problem that condensation tends to generate | occur | produce in 3A of 1st living sections.

  From such a viewpoint, in the ventilation method of the present embodiment, it is desirable that the outside air Ao (underfloor air Af) is supplied to the second living section 3B only in the winter season. Thereby, it is possible to prevent the high-temperature air Ar in the high-temperature second living section 3B from actively flowing into the cooled first living section 3A except in winter (for example, summer). Accordingly, it is possible to suppress the cooling efficiency of the first living section 3A and the occurrence of condensation in the first living section 3A.

  Further, it is desirable that outside air Ao (underfloor air Af) is supplied to the first living section 3A (in this embodiment, the living room 11a) except in winter (for example, in summer). Thereby, since it becomes possible to make the inside of the 1st living section 3A into a positive pressure state, it can prevent effectively that the high temperature air of the 2nd living section 3B is supplied to the 1st living section 3A. it can. FIG. 5 is a cross-sectional view showing an example of a house Br according to another embodiment of the present invention. In addition, in this embodiment, about the structure same as the previous embodiment, the same code | symbol may be attached | subjected and description may be abbreviate | omitted.

  In this embodiment, the air supply means 26 (hereinafter referred to as “first air supply means”) is configured to supply the outside air Ao (underfloor air Af) to the first living section 3A and bring the inside of the first living section 3A into a positive pressure state. 26A ").). 26 A of 1st air supply means of this embodiment is comprised including the 1st air flow path 31a, the 1st extraction port 32a, the 1st blower outlet 33a, and the 1st ventilation means 34a.

  The 1st air flow path 31a has extended the inside of the partition panel 16 up and down similarly to the 2nd air flow path 31b. Although the 1st air flow path 31a of this embodiment is formed in the partition panel 16 arrange | positioned between the living room 11a and the entrance 13, it is not necessarily limited to such an aspect.

  The first outlet 32a communicates the first air flow path 31a and the underfloor space 2. The 1st blower outlet 33a is connecting the 1st air flow path 31a and 3 A of 1st living divisions (in this embodiment, living room 11a). The first outlet 32a and the first outlet 33a can communicate with the underfloor space 2 and the first living section 3A via the first air flow path 31a.

  The 1st ventilation means 34a is provided in the 1st extraction port 32a. The 1st ventilation means 34a of this embodiment is comprised as a fan which ventilates from the underfloor space 2 side to the 1st air flow path 31a side. It is desirable that the air supply amount of the first air blowing means 34a is set in the same range as the air supply amount of the first air blowing means 34a.

  Such a first air supply means 26A operates the first air blowing means 34a to bring the underfloor space 2 into a negative pressure, and the underfloor air Af (that is, the outside air Ao supplied to the underfloor space 2), It can supply to 3 A (1st living room 11a in this embodiment) through the 1st air flow path 31a and the 1st blower outlet 33a. Thereby, 26 A of 1st air supply means can make the inside of the 1st residential division 3A into a positive pressure state.

  Next, the ventilation method of this embodiment using the first air supply means 26A will be described. FIG. 6 is a sectional view of a house for explaining a ventilation method according to another embodiment of the present invention. In the ventilation method of this embodiment, the third step S3 and the fourth step S4 are performed outside the winter season (for example, summer season). In this embodiment, the third step S3 and the fourth step S4 are performed simultaneously, but may be performed separately.

  As shown in FIGS. 5 and 6, in the third step S3, first, the first air blowing means 34a of the first air supply means 26A is operated. Accordingly, in the third step S3, the underfloor air Af (that is, the outside air Ao supplied to the underfloor space 2) is supplied to the first living section 3A (in this embodiment, the living room 11a and the kitchen 11b). The first living section 3A can be brought into a positive pressure state. In addition, the air Ar in the first living section 3A is separated from the other living sections 3 (in this embodiment, the corridor 11c, the washroom 11e, the bathroom 11f, and the toilet 11g) constituting the first living section 3A, and the partitioning means 27. It is possible to enter the second living section 3B via In the ventilation method of this embodiment, the second air blowing means 34b of the second air supply means 26B is stopped.

  In the fourth step S4, the opening / closing means 25b of the exhaust means 25 is opened. Thereby, the exhaust means 25 can exhaust the air Ar of the first living section 3A (in this embodiment, the living room 11a and the kitchen 11b) to the outside through the exhaust means 25. In addition, the air Ar entered the other living section 3 (in this embodiment, the corridor 11c, the washroom 11e, the bathroom 11f, and the toilet 11g) constituting the first living section 3A, and the second living section 3B. The air Ar is discharged to the outside through a gap or the like (not shown) formed in each living section 3.

  As described above, the house Br and the ventilation method of this embodiment forcibly supply the outside air Ao (underfloor air Af) into the living section 3 (the first living section 3A in this embodiment), and each living section. As the second type ventilation that naturally exhausts the air Ar in the house 3, the house Br can be effectively ventilated. Furthermore, since the house Br and the ventilation method of this embodiment can make the inside of the 1st residential section 3A into a positive pressure state except winter (for example, summer), the high-temperature air of the 2nd residential section 3B Ar can be effectively prevented from being supplied to the first living section 3A. Therefore, in this embodiment, the fall of the cooling efficiency of 3 A of 1st residential divisions can be suppressed effectively.

  In addition, the cooled air Ar in the first living section 3A can enter the second living section 3B via the partition means 27. Thereby, the indoor heat stroke in the 2nd residential section 3B can be prevented.

  Moreover, since the house Br and ventilation method of this embodiment can prevent the humid air Ar of the 2nd living section 3B from flowing in into the 1st living section 3A which is air-conditioned, the 1st living section Condensation can be prevented from occurring at 3A. Further, the first air supply means 26A of this embodiment supplies underfloor air Af having a temperature lower than the outside air Ao in the summer to the first living section 3A. For this reason, the first air supply means 26A can increase the cooling efficiency of the first living section 3A.

  Switching between the operation of the first air supply unit 34a of the first air supply unit 26A and the second air supply unit 34b of the second air supply unit 26B may be performed by a resident, but is automatically performed by the control unit or the like. It is desirable that

  In the housing Br of this embodiment, a determination unit 37 that determines whether or not the present season is winter, and a control unit that operates the air supply unit 26 (the first air supply unit 26A or the second air supply unit 26B). 38 is provided. FIG. 7 is a block diagram of the determination unit 37 and the control unit 38.

  The determination unit 37 and the control unit 38 are stored in one housing 39, and are fixed to the partition panel 16 (shown in FIG. 5), for example, in the living room 11a. The determination unit 37 and the control unit 38 include, for example, a calculation unit (CPU), a storage unit that stores data, a program, and the like, and a working memory, and can be processed independently.

  The determination unit 37 of this embodiment determines whether or not the present is the winter based on the winter period stored in advance. The winter period can be appropriately set according to the climate of the area where the house Br is built. The winter period of this embodiment is, for example, December 9 to February 20.

  It is desirable that the period during the winter can be appropriately changed by a button or the like provided on the housing 39 (shown in FIG. 5). As shown in FIG. 7, the determination unit 37 is connected to the control unit 38 via the cable 41. Accordingly, the determination unit 37 can transmit a determination result (signal) as to whether or not the present is the winter season to the control unit 38.

  The determination unit 37 according to this embodiment is configured to determine whether or not the present is the winter season based on a pre-stored winter period (for example, December 9 to February 20). Although shown, it is not limited to such an embodiment. For example, the determination unit 37 may determine whether or not the temperature of the outside air is lower than a predetermined temperature. Since such a determination part 37 can determine flexibly whether it is a winter season based on the temperature of outside air, it can prevent the condensation of the 2nd living section 3B effectively.

  Based on the determination result (signal) transmitted from the determination unit 37, the control unit 38 operates the first air supply unit 34a of the first air supply unit 26A and the second air supply unit 34b of the second air supply unit 26B. To control. The control part 38 is connected to the 1st ventilation means 34a of 26 A of 1st air supply means via the cable 42a. Furthermore, the control part 38 is connected to the 2nd ventilation means 34b of the 2nd air supply means 26B via the cable 42b.

  The control unit 38 of this embodiment receives the signal of the determination unit 37 (the signal determined to be in the winter season), thereby transmitting the signal to the second blower unit 34b and operating the first blower unit 34a. A signal is transmitted to and stopped. The control unit 38 receives a signal from the determination unit 37 (a signal determined that the present time is other than the winter season), thereby transmitting the signal to the first blower unit 34a for operation, and a signal to the second blower unit 34b. Communicate and stop. Thereby, the control part 38 can switch the driving | operation or stop of the 1st ventilation means 34a and the 2nd ventilation means 34b.

  Moreover, the control part 38 of this embodiment is connected to the opening / closing means 25b of the exhaust means 25 via the cable 42c. Opening / closing of the opening / closing means 25b is controlled by a signal transmitted from the control unit 38.

  FIG. 8 is a flowchart showing an example of a procedure of a ventilation method according to still another embodiment of the present invention. In the ventilation method of this embodiment, first, the determination unit 37 determines whether or not the present time is winter (fifth step S5). As described above, the determination unit 37 determines whether or not the present is the winter based on the winter period stored in advance. A determination result (signal) by the determination unit 37 is transmitted to the control unit 38.

  When the determination unit 37 determines that the current time is winter ("Y" in the fifth step S5), the first step S1 and the second step S2 are performed as in the previous embodiment. In the first step S1, the second air supply means 34b of the second air supply means 26B is operated and the first air supply means 34a of the first air supply means 26A is stopped based on the signal of the control unit 38 shown in FIG. Is done. Further, in the first step S 1, the opening / closing means 25 b of the exhaust means 25 is opened based on the control unit 38.

  Thereby, in the house Br and the ventilation method of this embodiment, as shown in FIG.1 and FIG.4, it becomes relatively humid in the winter season while ventilating the 1st residential area 3A and the 2nd residential area 3B. It is possible to prevent the air Ar in the first living section 3A that is easy to be supplied to the second living section 3B that tends to be relatively low in temperature. Therefore, the house Br and the ventilation method of this embodiment can prevent the occurrence of condensation in the second living section 3B while improving the heat insulation of the first living section 3A.

  On the other hand, when the determination unit 37 determines that the current time is other than the winter season ("N" in the fifth step S5), the third step S3 and the fourth step S4 are performed as in the previous embodiment. In 3rd step S3, based on the signal of the control part 38 shown in FIG. 7, the 1st air blower 34a of the 1st air supply means 26A is drive | operated, and the 2nd air blower 34b of the 2nd air supply means 26B stops. Is done. Further, in the fourth step S4, the opening / closing means 25b of the exhaust means 25 is opened based on the signal from the control unit 38.

  Thereby, in the house Br and the ventilation method of this embodiment, as shown in FIGS. 5 and 6, while ventilating the first residential section 3 </ b> A and the second residential section 3 </ b> B, except in winter (for example, summer), It is possible to prevent the high-temperature air Ar in the second living section 3B from flowing into the first living section 3A that is being cooled. Therefore, the house Br and the ventilation method of this embodiment can prevent indoor heat stroke in the second living section 3B while preventing a decrease in the cooling efficiency of the first living section 3A.

  Thus, in the house Br and the ventilation method of this embodiment, the operation of the first air supply means 26A and the second air supply means 26B is automatically switched based on the determination as to whether or not the present is the winter season. Therefore, it is possible to reliably prevent the occurrence of dew condensation in the second residential section 3B, which tends to occur in winter, and the cooling efficiency of the first residential section 3A, which tends to occur in summer.

  Next, as shown in FIG. 8, in the ventilation method of this embodiment, it is determined whether or not there is an end command (sixth step S6). The termination command is issued by a resident or the like via an operation unit (not shown) provided in the housing 39, for example. In the sixth step S6, when there is an end command (“Y” in the sixth step S6), a series of processes of this embodiment is ended. On the other hand, if there is no end command (“N” in the sixth step S6), the first step S1 to the fifth step S5 are performed again. Thereby, the ventilation method of this embodiment can ventilate the house Br efficiently according to the season.

  The first air supply means 26A and the second air supply means 26B in the embodiments so far are exemplified as those supplying the underfloor air Af, but are not limited to such a mode. For example, the outside air Ao may be directly supplied to the first living section 3A or the second living section 3B by a blowing means (not shown) provided on the outer wall panel 15. Since the first air supply means 26A and the second air supply means 26B can simplify their structures, the renovation cost can be reduced.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

  A building (Example 1, Example 2 and Comparative Example) having the basic structure shown in FIGS. 1 and 2 was input to the computer as a model that can be handled by the computer. In Example 1 and Example 2, ventilation was performed by an air supply unit that supplies outside air to the second living section and an exhaust unit that exhausts air from the first living section. In Example 1, outside air was directly supplied. In Example 2, the air in the underfloor space was supplied. On the other hand, in the comparative example, ventilation was performed by an exhaust unit that positively discharges toilet air to the outside and an air supply unit that naturally supplies outside air to the first living section.

And in Example 1, Example 2, and the comparative example, the simulation which calculates whether dew condensation arises in the 2nd living division was implemented. The simulation conditions are as follows.
Software: “Thermal environment simulation program (SMASH)” manufactured by Building Environment Solutions
・ Meteorological data: SMASH weather data (Osaka)
・ Meteorological data: February 3 (Average outside temperature: 0.3 ℃)
・ Plan: Floor area of the room: 123m ²
・ First living section (living room):
・ Set temperature: 20 ℃
・ Relative humidity: 40% RH
・ Second living area (Japanese-style room)
・ Initial setting temperature: 5 ℃
-Dew point temperature of air at a temperature of 20 ° C and a relative humidity of 40% RH: 6.0 ° C
-Air supply means of Example 1:
・ Air supply amount: 150m ³ / h
-Air supply means of Example 2:
・ Air supply amount: 150m ³ / h
・ Air temperature under the floor: 7 ℃
・ Exhaust means of comparative example:
・ Displacement: 150m ³ / h

  As a result of the test, in the comparative example, high-humidity air in the first living section flowed into the low-temperature second living section, and condensation occurred in the second living space. On the other hand, since Example 1 and Example 2 were able to make the inside of the 2nd living section into a positive pressure, it prevents that the humid air of the 1st living section is supplied to the low temperature 2nd living section. I was able to. Therefore, Example 1 and Example 2 were able to prevent the occurrence of condensation in the second living section. Moreover, since the air of the underfloor space was supplied to the 2nd living section in Example 2, it was able to raise +2 degreeC rather than Example 1 to which external air was supplied directly.

Br Housing 3A 1st residential section 3B 2nd residential section 21 Heat insulating material 25 Exhaust means 26 Air supply means 27 Partition means

Claims (5)

It is a house in which a first living section surrounded by a heat insulating material and a second living section surrounded by a heat insulating material not surrounded by the heat insulating material or lower in performance than the heat insulating material are provided adjacent to each other. And
Exhaust means for exhausting the air in the first living compartment to the outside;
An air supply means for supplying outside air to the second living section to bring the second living section into a positive pressure state;
Partition means for allowing the first living section and the second living section to communicate with each other in a breathable manner ;
A determination unit that determines whether or not the current season is winter;
And a control unit that operates the air supply means so that the outside air is supplied to the second living section when the determination unit determines that the current time is winter .   The house according to claim 1, wherein the air supply means supplies air in an underfloor space to the second living section. When the determination unit determines that the current time is other than the winter season, the control unit supplies the outside air to the first living section to bring the inside of the first living section into a positive pressure state. The house according to claim 2 which drives . The housing according to any one of claims 1 to 3, wherein the first residential section has a heat insulating material attached to an existing housing component by renovation . The first living section surrounded by the heat insulating material and the second living section surrounded by the heat insulating material that is not surrounded by the heat insulating material or lower in performance than the heat insulating material are adjacent to each other through a partition means capable of ventilation. A ventilation method for a house,
Including determining whether the current season is winter,
If it is determined that the current season is winter,
Supplying outside air to the second living section, and setting the second living section to a positive pressure state;
A method for ventilating a house, comprising: discharging the air that has entered the first living section from the second living section in the positive pressure state through the partitioning means to the outside.

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