Air conditioning system of heat-insulated house

Abstract

To provide an air conditioning system of a heat-insulated house which does not need to provide a non-residential space for an air-conditioned room indoors, does not need a facility of a duct dedicated to air blowing, and can be constructed even by using an inexpensive home air conditioner.SOLUTION: An air conditioning system for a two-story detached house has an air conditioner supply vent that communicates between an attic space and a second floor ceiling, inter-room vents that communicates between adjacent rooms on first and second floors, and an inter-floor space vent that communicates between a first floor ceiling or the second floor and an inter-floor space, where an air conditioner is installed near the second floor ceiling below an air conditioner supply vent, a blower is installed in the attic space, and an intake duct is installed that communicates an intake port of the blower and the inter-floor space.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an air conditioning system applied to a detached house, and more particularly to an overall air conditioning system that utilizes a home air conditioner in a detached house having a certain level of thermal insulation performance. [Background technology]

[0002] In recent years, the insulation performance of homes has been improving, and in 2022, new insulation grades 5 to 7 were established in addition to the conventional insulation grades 1 to 4 (Insulation performance grades by the Ministry of Land, Infrastructure, Transport and Tourism). In homes with a high insulation rating, the heat retention and airtightness are high, which improves the efficiency of heating and cooling. In other words, the entire room can be air-conditioned with fewer air conditioners, and energy consumption is reduced. Traditionally, air conditioning equipment (home air conditioners) was installed in each room in detached houses, but as the insulation performance of homes has improved, air conditioning systems that send air from a central air conditioning facility to each room have begun to be adopted.

[0003] Patent Document 1 proposes an air conditioning system in which an air-conditioned room is provided in a non-residential space indoors, and air is sent to a residential space lacking conditioned air from an air conditioner (FIG. 1, etc.). The conditioned air circulates indoors, and ventilation with outside air is performed in the attic. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-090151 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0005] In an air conditioning system like the one described above, which sends air to each room from a central air conditioning facility, it is necessary to provide a non-residential space for the air-conditioned room inside the building, which has the problem of reducing the living space accordingly. Also, in order to send air from the central air-conditioned room to each floor and room, it is necessary to lay dedicated ducts and send conditioned air at high power, which has the problem of increasing construction costs due to the introduction of ductwork and expensive air conditioners.

[0006] In view of these problems, the present invention aims to provide an air conditioning system for an insulated house that does not require the provision of a non-living space indoors for an air-conditioned room, does not require the installation of ducts dedicated to air circulation, and can be constructed using an inexpensive household air conditioner. [Means for solving the problem]

[0007] As a result of intensive research in consideration of the above-mentioned problems to be solved, the inventors of the present invention focused on the high heat retention and airtightness of recent insulated houses and came up with the idea that it would be possible to circulate indoor air efficiently by intake air rather than by blowing conditioned air. They then came to the conclusion that the above-mentioned problems could be solved by circulating indoor air by intake air so that the air blown by a home air conditioner installed in the living space would be efficiently circulated throughout the entire living space, and thus completed the present invention.

[0008] In other words, the present invention provides an air conditioning system for a two-story detached house, which has an air conditioner intake vent that connects between the attic space and the second floor ceiling, inter-room vents that connect adjacent rooms on the first and second floors, and an inter-floor space vent that connects between the first floor ceiling or the second floor floor and the inter-floor space, and which has an air conditioner below the air conditioner intake vent near the second floor ceiling, a blower in the attic space, and an intake duct that connects the blower's intake port with the inter-floor space. This air conditioning system, in an airtight, insulated house, operates a blower to draw air evenly from each living space through the inter-floor space that connects to each room, and the air drawn in by the blower is reused as air supply to the air conditioner installed on the second floor, realizing efficient air circulation in the living space. As a result, it is possible to adequately air-condition the living space with a single, not high-powered household air conditioner. The fact that air circulation in the living space is generated by the force of air intake, rather than air blown by a blower, is a feature not found in conventional technology.

[0009] The present invention also relates to an air conditioning system for a two-story detached house, the system having a second floor air conditioner supply vent that connects between an attic space and a second floor ceiling, a first floor air conditioner supply vent that connects between a first floor floor and an underfloor space, an inter-room vent that connects between adjacent rooms on the first and second floors, an inter-floor space vent that connects between the first floor ceiling or the second floor floor and the inter-floor space, and an underfloor space vent that connects between the floor of each room on the first floor and the underfloor space, The air conditioning system provided has a second-floor air conditioner below the second-floor air conditioner intake vent near the ceiling of the first floor, a first-floor air conditioner above the first-floor air conditioner intake vent near the first floor floor, a blower in the attic space, a blower in the underfloor space that blows air toward one of the underfloor space vents, and an intake duct connecting the blower's intake port to the inter-floor space. This air conditioning system also includes a first-floor air conditioner, which utilizes the space under the floor to circulate the conditioned air, enabling more effective air conditioning of the living space.

[0010] The present invention also provides an air conditioning system for a three-story detached house, which has an air conditioner intake vent connecting the attic space and the third floor ceiling, inter-room vents connecting adjacent rooms on the second and third floors, and an inter-floor space vent connecting the second floor ceiling or the third floor floor and the inter-floor space, and which has an air conditioner below the air conditioner intake vent near the third floor ceiling, a blower in the attic space, and an intake duct connecting the blower's intake port with the inter-floor space. In this way, it can also be partially used in a three-story detached house.

[0011] The air conditioning system of the present invention further includes a heat exchange ventilator that performs heat exchange between gases passing through two air ducts in the attic space, and the heat exchange ventilator is characterized in that it has an air duct that sends air from the attic space to the outdoors, and an air duct that sends air from the outdoors to the attic space. This allows the waste heat from the conditioned air to be utilized, improving the energy efficiency of the system. The air conditioning system of the present invention is further characterized in that it has an air mixing chamber in the attic space that is closed to the attic space and communicates with the exhaust outlet from the blower, the exhaust outlet from the heat exchange ventilation device, and the air conditioner intake vent. This allows the conditioned air recovered and reused from the living space and the outside air taken in from outside to be supplied directly to the air mixing chamber without being dissipated into the attic space, improving ventilation efficiency and the energy efficiency of the system. Effect of the Invention

[0012] As described above, according to the present invention, there is provided an air conditioning system for an insulated house that does not require the provision of a non-living space indoors for an air-conditioned room, does not require the installation of ducts dedicated to air circulation, and can be constructed using an inexpensive household air conditioner. [Brief description of the drawings]

[0013] [Figure 1]1 is a diagram showing an overall overview of an air conditioning system for a thermally insulated house according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing the flow of conditioned air in the air conditioning system for the insulated house of the first embodiment of the present invention. [Diagram 3] FIG. 4 is a diagram showing an overall overview of an air conditioning system for a thermally insulated house according to a second embodiment of the present invention. [Figure 4] FIG. 11 is a diagram showing the flow of conditioned air in an air-conditioning system for a thermally insulated house according to a second embodiment of the present invention. BEST MODE FOR CARRYING OUT THEINVENTION

[0014] Hereinafter, the best mode for carrying out the air conditioning system for a thermally insulated house of the present invention will be described in detail with reference to the attached drawings. Figures 1 to 4 are diagrams illustrating an embodiment of the present invention, and in these figures, similarly drawn parts represent the same objects, and the basic configurations and operations are similar.

[0015] [First embodiment] Hereinafter, a first embodiment of an air conditioning system for a thermally insulated house according to the present invention will be described. (1) Overall configuration of air conditioning system FIG. 1 is a diagram showing an overall overview of an air conditioning system for a thermally insulated house according to this embodiment. As shown in FIG. 1, the air conditioning system for a thermally insulated house of this embodiment is constructed in a two-story detached house. A blower, a heat exchange ventilator, and an air mixing chamber installed in the attic space; A vent between the attic space and the second floor ceiling, An air conditioner installed near the vent on the second floor; There are multiple ventilation holes in the partitions between the rooms on the first and second floors, There are multiple ventilation holes on the ceiling of the first floor and the floor of the second floor. an intake duct that communicates the intake port of the blower with an inter-floor space and the exhaust port of the blower with the air mixing chamber; It consists of:

[0016] The blower used should have the required blowing performance according to the size and specifications of the house. In the figure, the intake port is on the left and the exhaust port is on the right. The heat exchange ventilator exchanges heat between gases passing through two air passages, and has two pairs of intake and exhaust ports. The two air passages send air from indoors to outdoors, and from outdoors to indoors, and have the function of exchanging heat between airs with different temperatures passing through them. The air mixing chamber is a space for mixing the air supplied from the two air passages shown in the figure. The air conditioner used should have the required air conditioning performance according to the size and specifications of the house. If the house has sufficient insulation performance, a general household air conditioner can be used. As shown in the figure, the air conditioner is preferably installed near the top of the opening (staircase or atrium) connecting the first and second floors. The intake duct that connects the blower's intake port to the space between floors should preferably be installed in a non-residential space (between the exterior and interior walls, along the exterior wall, etc.) from the piping that leaves the attic space to the space between floors, but there is no functional problem if it is installed in the living space. The ventilation holes in various places remain the same as before.

[0017] (2) Air conditioning system operation Fig. 2 is a diagram showing the flow of conditioned air in the air conditioning system of the thermally insulated house of this embodiment, which is the same as Fig. 1, and the names of each component are omitted. This air conditioning system operates when the above air conditioner, blower, and heat exchange ventilation device are operated. The heat exchange ventilator draws in air from the attic space and exhausts it outdoors, while also drawing in air from outdoors and exhausting it into the air mixing chamber. The air drawn in from the attic space is air that has been heated or cooled indoors, and there is a temperature difference between it and the outside air. (Although not shown, it is assumed that air from the second floor flows into the attic space through a vent or gap between the attic space and the second floor.) By exchanging heat with the air drawn in from outdoors, the air mixing chamber is supplied with air that is closer in temperature to the living space than the outside air, improving air conditioning efficiency and energy efficiency. As is clear from Figure 2, the air blown by the heat exchange ventilator does not affect the flow of conditioned air within the living space. The air conditioner installed near the ceiling on the second floor mainly draws in air from the air mixing chamber through a vent located above it, and then exhausts the conditioned air downward after cooling, heating, etc. The blower draws air from the inter-floor space through an intake duct and exhausts the air into the air mixing chamber.

[0018] As a result, the conditioned air flows as shown by the arrows in Figure 2. The conditioned air discharged from the air conditioner installed near the ceiling on the second floor flows out from the room where the air conditioner is installed to the adjacent room on the second floor through an air vent, and also flows out to the first floor through an opening located below that connects the first and second floors. On the first floor, the conditioned air also flows out to the adjacent room through an air vent. The conditioned air also flows out from each room on the first and second floors through air vents into the inter-floor space. The conditioned air that reaches the inter-floor space is collected in the air mixing chamber through an intake duct. In this way, by drawing air into the attic space from the inter-floor space that connects to the rooms on the first and second floors, an air current is created in which conditioned air from a single air conditioner installed near the ceiling on the second floor circulates through the rooms on the first and second floors, resulting in the effect of evenly conditioning the living space. This effect is particularly large in homes with high airtight insulation grades of 5 to 7, making it possible to adequately air-condition the entire living space with a single inexpensive home air conditioner.

[0019] [Second embodiment] A second embodiment of the air conditioning system for a thermally insulated house of the present invention will now be described. (1) Overall configuration of air conditioning system FIG. 3 is a diagram showing an overall overview of the air conditioning system for the insulated house of this embodiment. As shown in FIG. 3, the air conditioning system for a thermally insulated house of this embodiment is constructed in a two-story detached house similar to the first embodiment shown in FIG. 1, and in addition to the configuration of the first embodiment, A blower installed in the space under the floor on the first floor, Multiple ventilation openings on the first floor and It consists of:

[0020] The air conditioner on the first floor is mainly for underfloor heating, but should have the required air conditioning performance according to the size and specifications of the house. The exhaust of the conditioned air should preferably be directed to a vent located immediately below. The fan for the underfloor space is used to blow air from the underfloor space to the first floor, and has the required blowing performance according to the size and specifications of the house. In the figure, the part that connects to the underfloor space has an intake port, and the part that connects to the upper vent has an exhaust port. As shown in the figure, the air conditioner on the second floor and the fan for the underfloor space are installed as far away as possible to increase the air circulation effect in the underfloor space. The first floor floor vents will be installed one below the second floor air conditioner, one just above the crawl space blower, and one in the floor of each first floor room that does not have these vents.

[0021] (2) Air conditioning system operation Fig. 4 is a diagram showing the flow of conditioned air in the air-conditioning system of the thermally insulated house of this embodiment, which is the same as Fig. 2, and the names of each component are omitted. This air conditioning system operates by running the air conditioners on the first and second floors, the fans in the attic space and under the floor, and the heat exchange ventilation device, as shown in the diagram. The flow of conditioned air from the attic space to the second floor and first floor is similar to that described in the first embodiment. Due to the action of the underfloor fan, most of the conditioned air from the first floor air conditioner flows into the underfloor space through the vent just below it. The air in the underfloor space flows into the first floor through vents other than the vent below the second floor air conditioner. As a result, the conditioned air flows as shown by the arrows in Figure 4. In addition to the effects of the first embodiment, there is an effect that the area around the floor on the first floor is sufficiently air-conditioned.

[0022] Although the present invention has been described above by showing specific embodiments of the air conditioning system for a thermally insulated house, the present invention is not limited to these. A person skilled in the art can make various changes and improvements to the configurations of the various air conditioning equipment, ventilation means, heat exchange means, etc. in each of the above embodiments, particularly the materials, dimensions, shapes, shape and dimensions of holes, number, etc., without departing from the scope of the present invention. For example, in the above embodiment, an application example in a two-story detached house has been described, but other application forms are also conceivable, such as applying the system only to the second and third floors in a three-story detached house (applying the first embodiment), only to the first and third floors (applying the second embodiment), or to the first, second and third floors (utilizing the space between the two floors).

Claims

1. An air conditioning system for a two-story detached house, An air conditioning intake vent that connects the attic space to the second floor ceiling, Inter-room vents connecting adjacent rooms on the first and second floors; and an inter-floor space vent that communicates between the first floor ceiling or the second floor floor and the inter-floor space, An air conditioner is provided below the air conditioner intake vent near the second floor ceiling, The attic space has a blower, The air intake duct communicates the air intake of the blower with the space between floors. Air conditioning system.

2. The attic space has a heat exchange ventilation device that exchanges heat between gas passing through two ventilation paths, The heat exchange ventilation device has an air passage for sending air from the attic space to the outside and an air passage for sending air from the outside to the attic space.

2. The air conditioning system according to claim 1.

3. The attic space includes an air mixing chamber that is closed with respect to the attic space and communicates with the exhaust port from the blower, the exhaust port from the heat exchange ventilation device, and the air conditioner intake vent.

3. An air conditioning system according to claim 2.

4. An air conditioning system for a two-story detached house, A vent for the air conditioner supply on the second floor that connects the attic space to the second floor ceiling; A first floor air conditioner intake vent that communicates between the first floor and the underfloor space; Inter-room vents connecting adjacent rooms on the first and second floors; An inter-floor space vent that communicates between the first floor ceiling or the second floor floor and the inter-floor space; The floor space vents communicate between the floors of the rooms on the first floor and the underfloor space, A second floor air conditioner is provided below the second floor air conditioner intake vent near the second floor ceiling, A first floor air conditioner is provided above the first floor air conditioner intake vent near the first floor, The attic space has a blower, A blower is provided in the underfloor space to blow air toward one of the underfloor space vents, The air intake duct communicates the air intake of the blower with the space between floors. Air conditioning system.

5. The attic space has a heat exchange ventilation device that exchanges heat between gas passing through two ventilation paths, The heat exchange ventilation device has an air passage for sending air from the attic space to the outside and an air passage for sending air from the outside to the attic space.

5. An air conditioning system according to claim 4.

6. The attic space includes an air mixing chamber that is closed with respect to the attic space and communicates with the exhaust port from the blower, the exhaust port from the heat exchange ventilation device, and the air conditioner intake vent.

6. An air conditioning system according to claim 5.

7. An air conditioning system for a three-story detached house, An air conditioning intake vent that connects the attic space to the third floor ceiling, Inter-room vents connecting adjacent rooms on the second and third floors; and an inter-floor space vent that communicates between the second floor ceiling or the third floor floor and the inter-floor space, An air conditioner is provided below the air conditioner intake vent near the third floor ceiling, The attic space has a blower, The air intake duct communicates the air intake of the blower with the space between floors. Air conditioning system.

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