Residential ventilation and air conditioning systems and ventilation and air conditioning methods

Abstract

To provide a residential ventilation and air conditioning system that can suppress the rise in humidity in living spaces. [Solution] The ventilation and air conditioning system 1 includes a chamber 16, an outside air supply device 17, an air conditioner 18, a transport device 19 that supplies outside air Ao and / or conditioned air Ac to the living room 2, a temperature sensor 23 that detects the temperature of the living room 2, and a control device 20. The air conditioner 18 includes a heat exchanger and an air conditioning fan. The control device 20 includes an air conditioning fan operation control unit that, during cooling operation, stops the operation of the heat exchanger and continues the operation of the air conditioning fan in a dehumidification promotion mode when the temperature of the living room 2 satisfies a predetermined target temperature.

Description

Technical Field

[0001] The present invention relates to a residential ventilation air-conditioning system and a ventilation air-conditioning method.

Background Art

[0002] Patent Document 1 below describes a ventilation air-conditioning unit for ventilating and / or air-conditioning the space inside a building. This ventilation air-conditioning unit is provided with a chamber box, an indoor unit of an air conditioner disposed inside the chamber box, and an outdoor air supply means.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In general, air conditioners have a thermo-off function that stops the heat exchanger and the air-conditioning fan during cooling operation. By activating such a thermo-off function, energy saving can be achieved while maintaining the comfort of the living room. However, while the thermo-off function is active, high-humidity outdoor air is supplied to the living room, which causes a problem that the humidity in the living room rises.

[0005] The present invention has been devised in view of the above actual circumstances, and its main object is to provide a residential ventilation air-conditioning system capable of suppressing an increase in humidity in a living room.

Means for Solving the Problems

[0006] The present invention relates to a ventilation and air conditioning system for ventilating and air conditioning a house having a living room, comprising: a chamber; an outside air supply device for supplying outside air into the chamber; an air conditioner for air conditioning the air inside the chamber; a transport device for supplying the outside air and / or air conditioned by the air conditioner to the living room; a temperature sensor for detecting the temperature of the living room; and a control device, wherein the air conditioner comprises a heat exchanger and an air conditioning fan for passing the air inside the chamber through the heat exchanger; and the control device comprises an air conditioning operation start unit for starting the operation of the heat exchanger and the air conditioning fan; and an air conditioning fan operation control unit for performing a dehumidification promotion mode during cooling operation, which stops the operation of the heat exchanger and continues the operation of the air conditioning fan when the temperature of the living room satisfies a predetermined target temperature. [Effects of the Invention]

[0007] By adopting the above configuration, the ventilation and air conditioning system for houses of the present invention makes it possible to suppress the rise in humidity in living spaces. [Brief explanation of the drawing]

[0008] [Figure 1] This is a conceptual diagram showing an example of a house equipped with a ventilation and air conditioning system. [Figure 2] This is a cross-sectional view of the chamber from the side. [Figure 3] Figure 2 is a cross-sectional view of the chamber from the front. [Figure 4] This is a conceptual diagram showing an example of the configuration of a control device. [Figure 5] This flowchart shows an example of the procedure for ventilation and air conditioning methods in a residential building. [Figure 6] This is a front view of a chamber according to another embodiment of the present invention. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings. It should be understood that the drawings contain exaggerations and representations that differ from the actual dimensional ratios of the structures in order to aid in understanding the content of the invention. Furthermore, the same or common elements are denoted by the same reference numerals throughout each embodiment, and redundant explanations are omitted. Moreover, the specific configurations shown in the embodiments and drawings are for the purpose of understanding the content of the present invention, and the present invention is not limited to the specific configurations shown in the drawings.

[0010] [Housing] Figure 1 is a conceptual diagram showing an example of a house H in which a ventilation and air conditioning system 1 is installed. In this embodiment, the house H is exemplified as a two-story building, but it may be a one-story building or a building with three or more stories. Also, although the house H in this embodiment is configured as an industrialized house, it is not particularly limited. The house H in this embodiment has a living room 2.

[0011] [Room] In this embodiment, the living room 2 is located in the upper floor space 5, which is the space above the underfloor space 3 (floor 4). The living room 2 in this embodiment includes a first-floor living room 2A located on the first floor of the house H, and a second-floor living room 2B located on the second floor of the house H. However, the living room 2 is not limited to this configuration; for example, depending on the number of floors in the house H, it may consist of only one of the first-floor living room 2A and the second-floor living room 2B, or it may include living rooms on the third floor or higher (not shown).

[0012] Room 2 is partitioned by partition walls 6 and doors 7. The doors 7 have gaps such as undercuts. This allows air Ai to flow between Room 2 and the adjacent hall 8.

[0013] The hall 8 of the present embodiment includes a first-floor hall 8A and a second-floor hall 8B. Air Ai can flow between the first-floor hall 8A and the second-floor hall 8B via the stairs 9. Thereby, the air Ai in the first-floor living room 2A and the air Ai in the second-floor living room 2B can be supplied to the hall 8 (in this example, the second-floor hall 8B) as return air Ar.

[0014] [Underfloor Space] The underfloor space 3 is a space enclosed by the foundation 11, the ground 12, and the first-floor floor 4. The foundation 11 is provided with an opening 13 for taking in outside air Ao. The outside air Ao taken in from the opening 13 undergoes heat exchange with the underground heat, which has little temperature variation throughout the year, via the ground 12.

[0015] [Ventilation and Air Conditioning System (First Embodiment)] The ventilation and air conditioning system 1 is used for ventilation and air conditioning of a house H having living rooms 2 (in this example, a first-floor living room 2A and a second-floor living room 2B). The ventilation and air conditioning system 1 of the present embodiment is configured as a whole-house air conditioning system capable of air conditioning the entire house H.

[0016] The ventilation and air conditioning system 1 of the present embodiment includes a chamber 16, an outside air supply device 17, an air conditioner 18, a conveying device 19, a temperature sensor 23, and a control device 20. Furthermore, the ventilation and air conditioning system 1 of the present embodiment may include a filter 21.

[0017] Figure 2 is a cross-sectional view of the chamber 16 as viewed from the side. Figure 3 is a cross-sectional view of the chamber 16 of Figure 2 as viewed from the front. In Figure 2, the second conveying fan 27B of the conveying device 19 is disposed on the near side, and the first conveying fan 27A shown in Figure 3 is disposed on the far side of the second conveying fan 27B.

[0018] [Chamber] The chamber 16 is formed in a box shape having a space inside thereof. As shown in Figure 1, the chamber 16 of the present embodiment is installed in the second-floor hall 8B, but is not particularly limited thereto, and may be installed in the first-floor hall 8A or in the underfloor space 3.

[0019] As shown in Figure 2, the chamber 16 of the present embodiment has an inlet 22. Such inlet 22 allows air to flow between the inside and outside of the chamber 16.

[0020] The inlet 22 enables air to flow between the interior of the chamber 16 and the hall 8 (the second-floor hall 8B in this example). As shown in Figure 1, the air Ai from the first-floor living room 2A and the air Ai from the second-floor living room 2B can be supplied to the second-floor hall 8B of the present embodiment as return air Ar. Therefore, the return air Ar can be taken into the interior of the chamber 16 through the inlet 22 shown in Figure 2.

[0021] [Outside air supply device] As shown in Figure 1, the outside air supply device 17 is used to supply outside air Ao into the interior of the chamber 16. The outside air supply device 17 of the present embodiment includes an outside air supply duct 24 and an outside air supply fan 25.

[0022] The outside air supply duct 24 is used to guide the outside air Ao to the chamber 16. One end of the outside air supply duct 24 is disposed in the underfloor space 3, and is provided with an outside air suction port (not shown) for taking in the outside air Ao (underfloor air Au). On the other hand, as shown in Figure 2, the other end of the outside air supply duct 24 is connected to the chamber 16, and is provided with an outside air outlet 24o for blowing out the outside air Ao (underfloor air Au). Since the underfloor space 3 and the chamber 16 are communicated with each other by such outside air supply duct 24, the outside air Ao for ventilation (underfloor air Au) can be supplied to the chamber 16.

[0023] As shown in Figure 1, the outside air supply fan 25 is used to pump outside air Ao (underfloor air Au). In this embodiment, the outside air supply fan 25 pumps (supplies) outside air Ao (underfloor air Au) into the chamber 16 via the outside air supply duct 24. The operation of the outside air supply fan 25 can be controlled by the control device 20.

[0024] In this specification, "fan" refers to a machine for pressurizing and pumping air. Therefore, the outside air supply fan 25, the air conditioning fan 18c (shown in Figure 2) described later, the transport fan 27 (first transport fan 27A and second transport fan 27B), etc., are not particularly limited as long as they are capable of pressurizing and pumping air.

[0025] [Air conditioner] The air conditioner 18 is used to conditioned the air inside the chamber 16. As a result, conditioned air (hereinafter sometimes referred to as "conditioned air") Ac is generated inside the chamber 16 by the air conditioner 18. In this embodiment, the air conditioner 18 is capable of both cooling operation (including dehumidification operation) and heating operation, but it may also be capable of only cooling operation.

[0026] As shown in Figure 2, the air conditioner 18 of this embodiment is configured as, for example, a typical household split-type air conditioner. Therefore, the air conditioner 18 includes an indoor unit 18A and an outdoor unit (not shown).

[0027] The air conditioner 18 (indoor unit 18A) of this embodiment is provided with an intake port 18i and a discharge port 18o. Furthermore, the air conditioner 18 of this embodiment includes a heat exchanger 18b and an air conditioning fan 18c. In this embodiment, the operation of the air conditioner 18 can be controlled by the control device 20.

[0028] The intake port 18i is used to draw in air, including outside air Ao (underfloor air Au), into the air conditioner 18 (indoor unit 18A). In this embodiment, in addition to outside air Ao (underfloor air Au), return air Ar, which is taken in from the inlet 22 of the chamber 16, is also drawn into the air conditioner 18 through the intake port 18i. Therefore, in this embodiment, a mixture Am containing outside air Ao (underfloor air Au) and return air Ar is drawn into the air conditioner 18 through the intake port 18i.

[0029] In this embodiment, outside air Ao (underfloor air Au) is blown out from the outside air outlet 24o of the outside air supply duct 24 to the intake port 18i. As a result, the outside air Ao supplied from the outside air supply duct 24 is smoothly taken into the air conditioner 18 from the intake port 18i, which can suppress the short-circuiting of the gap 26 between the air conditioner 18 (indoor unit 18A) and the chamber 16. This makes it possible to efficiently air condition the outside air Ao. In addition, when the air conditioner 18 is in cooling operation, the outside air is reliably dehumidified, which can suppress the rise in humidity in the living room 2 shown in Figure 1.

[0030] As shown in Figure 3, it is preferable that the outside air outlet 24o is positioned at the center C1 of the width direction (hereinafter sometimes referred to as "width direction") D1 of the intake port 18i. This can prevent the outside air Ao (underfloor air Au) blown out from the outside air outlet 24o from short-circuiting the gaps 26, 26 between the air conditioner 18 (indoor unit 18A) and the chamber 16. To prevent this short-circuiting, it is preferable that the shortest distance between the center position (center) C2 of the maximum width of the outside air outlet 24o and the center position (center) C1 of the maximum width of the intake port 18i is within 5 cm in the width direction D1 (front view of the air conditioner 18).

[0031] Furthermore, as shown in Figure 2, it is preferable that the outside air outlet 24o is positioned further back (rearward) than the center of the depth direction D2 of the intake port 18i. This can prevent the outside air Ao (underfloor air Au) blown out from the outside air outlet 24o from short-circuiting the gap 26 between the air conditioner 18 (indoor unit 18A) and the chamber 16 (on the front side of the air conditioner 18). To prevent this short-circuiting, it is preferable that the shortest distance between the center position C3 of the maximum width of the outside air outlet 24o and the center position C4 of the maximum width of the intake port 18i in the depth direction D2 (side view of the air conditioner 18) be 3 cm or more.

[0032] The discharge port 18o in this embodiment is used to blow conditioned air Ac, which has been conditioned (including dehumidified) by the air conditioner 18, into the chamber 16.

[0033] The heat exchanger 18b is used to exchange heat with the air in the chamber 16 (in this example, a mixture of return air Ar and outside air Ao, called Am). By using such a heat exchanger 18b, the air in the chamber 16 is cooled or heated, enabling cooling or heating operation.

[0034] The air conditioning fan 18c is used to pass the air inside the chamber 16 (in this example, a mixture of return air Ar and outside air Ao, called Am) through the heat exchanger 18b. This air conditioning fan 18c allows the air inside the chamber 16 to pass smoothly through the heat exchanger 18b, enabling efficient heat exchange.

[0035] In this embodiment, the air conditioner 18 is controlled by a control device 20 to operate the heat exchanger 18b and the air conditioning fan 18c based on the temperature of the living room 2 detected by the temperature sensor 23 shown in Figure 1 and a predetermined target temperature.

[0036] The target temperature is the temperature that living room 2 should be able to maintain. The target temperature may be set as appropriate by the occupants, for example, or it may be predetermined for each cooling and heating operation. For example, the target temperature during cooling operation may be set to 25°C to 29°C. For example, the target temperature during heating operation may be set to 18°C ​​to 22°C.

[0037] In this embodiment, the operation of the heat exchanger 18b and the air conditioning fan 18c is controlled so that the temperature of living room 2 approaches the target temperature. This can maintain the comfort of living rooms 2 (first-floor living room 2A and second-floor living room 2B). If a temperature sensor 23 is placed in each of the multiple living rooms 2 as in this embodiment, the operation of the heat exchanger 18b and the air conditioning fan 18c may be controlled based on the average value of the temperatures of these living rooms 2, or it may be controlled based on the temperature of the living room 2 that is furthest from the target temperature.

[0038] The air conditioner 18, under the control of the control device 20, stops the operation of the heat exchanger 18b during cooling operation when the temperature of the living room 2 satisfies the target temperature (in this example, when the value obtained by subtracting the target temperature from the temperature of the living room 2 becomes 0°C). This improves energy efficiency while maintaining the comfort of the living room 2 (preventing excessive cooling).

[0039] The air conditioner 18 may, under the control of the control device 20, start operating the heat exchanger 18b after it has stopped operating, if the temperature of the living room 2 deviates from the target temperature (for example, if it becomes 0.5 to 2.0°C or more above the target temperature). By alternating the starting and stopping of the heat exchanger 18b in this way, cooling operation can be performed in accordance with the constantly changing temperature of the living room 2, thereby maintaining the comfort of the living room 2.

[0040] The air conditioner 18 may, under the control of the control device 20, stop the operation of the heat exchanger 18b and the air conditioning fan 18c during heating operation when the temperature of the living room 2 reaches the target temperature. This improves energy efficiency while maintaining the comfort of the living room 2 (preventing excessive heating). Alternatively, the air conditioner 18 may, under the control of the control device 20, start the operation of the heat exchanger 18b and the air conditioning fan 18c if the temperature of the living room 2 deviates from the target temperature (for example, if it becomes 0.5 to 2.0°C or more below the target temperature) after the operation of the heat exchanger 18b and the air conditioning fan 18c has been stopped. By alternating the start and stop of the heat exchanger 18b in this way, heating operation can be performed in accordance with the constantly changing temperature of the living room 2, and the comfort of the living room 2 can be maintained.

[0041] [Conveying equipment] As shown in Figure 1, the conveying device 19 is used to supply outside air Ao (mixed air Am) and / or air conditioned by the air conditioner 18 (conditioned air) Ac to the living room 2. The conveying device 19 in this embodiment includes a conveying fan 27 and a conveying duct 28.

[0042] The transport fan 27 is used to pressurize and pump the air in the chamber 16 to the living room 2. In this embodiment, the transport fan 27 pressurizes (supplies) the air in the chamber 16 (outside air Ao and / or conditioned air Ac) to the living room 2 via the transport duct 28. The operation of the transport fan 27 can be controlled by the control device 20.

[0043] The transport fan 27 in this embodiment includes a first transport fan 27A and a second transport fan 27B.

[0044] The first transport fan 27A is used to pump air from the chamber 16 to the first-floor room 2A. On the other hand, the second transport fan 27B is used to pump air from the chamber 16 to the second-floor room 2B. These first transport fans 27A and the second transport fan 27B individually adjust the amount of air supplied to the first-floor room 2A and the second-floor room 2B, respectively, thereby improving the comfort of the first-floor room 2A and the second-floor room 2B. It should be noted that the transport fan 27 is not limited to an embodiment that includes the first transport fan 27A and the second transport fan 27B. Depending on, for example, the number of floors of the house H and the total floor area of ​​the rooms 2, the transport fan 27 may consist only of the first transport fan 27A, or it may include other transport fans.

[0045] The transport duct 28 is for guiding the air in the chamber 16 to the living room 2. The transport duct 28 in this embodiment includes a first transport duct 28A and a second transport duct 28B.

[0046] The first transport duct 28A is used to guide the air in the chamber 16 to the first-floor room 2A. On the other hand, the second transport duct 28B is used to guide the air in the chamber 16 to the second-floor room 2B. Because the air in the chamber 16 is guided individually to the first-floor room 2A and the second-floor room 2B by these first transport ducts 28A and 28B, the comfort level of the first-floor room 2A and the second-floor room 2B is improved. It should be noted that the transport duct 28 is not limited to an embodiment that includes the first transport duct 28A and the second transport duct 28B. Depending on the number of floors of the house H, the total floor area of ​​the rooms 2, etc., the transport duct 28 may consist only of the first transport duct 28A, or it may further include other transport ducts.

[0047] [Temperature sensor] The temperature sensor 23 is used to detect the temperature of the living room 2. In this embodiment, a temperature sensor 23 is placed in each of the multiple living rooms 2, but this is not particularly limited, and for example, the temperature sensor 23 may be placed in only some of the multiple living rooms 2. The detected temperature of the living room 2 is transmitted to the control device 20.

[0048] [Filter] The filter 21 is used to purify the air inside the chamber 16 (outside air Ao (mixed air Am) and / or conditioned air Ac). In this embodiment, the filter 21 is installed inside the chamber 16 between the air conditioner 18 and the conveying device 19. This allows the filter 21 to purify the outside air Ao (mixed air Am) and / or conditioned air Ac and supply them to the conveying device 19. As shown in Figure 3, the filter 21 in this embodiment is composed of a plurality of plate-shaped filter elements 21A, but is not particularly limited.

[0049] The filter 21 (filter element 21A) can be appropriately selected from known types. In this embodiment, for example, the filter 21 may be a HEPA (High Efficiency Particulate Air) filter, a photocatalytic filter, an activated carbon deodorizing filter, or an electrostatic precipitator filter. Alternatively, the filter 21 may be constructed by combining these types of filters.

[0050] [Control device] As shown in Figure 1, the control device 20 is used to control the outside air supply device 17, the air conditioner 18, and the conveying device 19. The control device 20 in this embodiment is composed of a computer and is installed, for example, in a partition wall. Figure 4 is a conceptual diagram showing an example of the configuration of the control device 20.

[0051] The control device 20 is configured to include, for example, an arithmetic unit (CPU) 31, a storage device 32 for storing processing procedures, etc., and a working memory 33 for reading processing procedures, etc., from the storage device 32. An input device 34 and an output device 35 are connected to the control device 20 (arithmetic unit 31).

[0052] [Input device] The input device 34 in this embodiment is composed of, for example, operation buttons or a touch panel provided on the housing of the control device 20 shown in Figure 1. Through such an input device 34, input data from, for example, a user (resident), can be transmitted to the control device 20 (arithmetic unit 31). The input data may include, for example, instruction data for starting or stopping ventilation or air conditioning operation (cooling or heating), or target temperature.

[0053] [Output device] The output device 35 in this embodiment is configured, for example, as a display provided in the housing of the control device 20 shown in Figure 1. When data from the control device 20 (arithmetic unit 31) is received by such an output device 35, the operating status of the ventilation and air conditioning system 1 can be displayed, for example.

[0054] [Arithmetic device] The computing unit 31 is composed of, for example, a CPU (Central Processing Unit). In this embodiment, the computing unit 31 is communicatively connected to the outside air supply fan 25, the air conditioner 18, and the transport fans 27 (first transport fan 27A and second transport fan 27B). As a result, the operation of these can be controlled by the computing unit 31.

[0055] The control device 20 can receive the temperature detected by the temperature sensor 23 (in this example, the temperatures of multiple rooms 2) from the air conditioning control unit 18d. The acquired temperature is stored in the data unit 36, which will be described later.

[0056] [Storage device] The storage device 32 in this embodiment is, for example, a non-volatile information storage device. The storage device 32 includes a data section 36 and a program section 37.

[0057] [Data Section] The data unit 36 ​​of this embodiment stores data necessary for executing the ventilation and air conditioning method of the house H (shown in Figure 1), which will be described later (in this example, data necessary for the operation control of the outside air supply device 17, the air conditioner 18, and the transport device 19). The data unit 36 ​​of this embodiment stores the temperature detected by the temperature sensor 23 (in this example, the temperature of room 2) and the target temperature, but other data may also be stored.

[0058] [Programming Department] The program unit 37 is a program (computer program) that causes the arithmetic unit 31 (control device 20) to execute a ventilation and air conditioning method. By being executed by the arithmetic unit 31, the program unit (program) 37 can cause the control device (computer) 20 to function as a specific means.

[0059] The program unit 37 includes a ventilation operation start unit 37A, an air conditioning operation start unit 37B, a room temperature determination unit 37C, an air conditioning fan operation control unit 37D, an operation continuation unit 37E, an end determination unit 37F, and an operation end unit 37G. The program unit 37 is not limited to this configuration and may include other programs. The functions of these program units 37 will be explained in each step of the air conditioning method described later.

[0060] [Ventilation and air conditioning methods for houses] Incidentally, conventional air conditioners (not shown) have a thermo-off function that stops both the heat exchanger 18b and the air conditioning fan 18c shown in Figure 2 during cooling operation. By activating such a thermo-off function, energy saving can be achieved while maintaining the comfort of the living room 2 shown in Figure 1. However, while the thermo-off function is active, the high-humidity outside air Ao is supplied to the living room 2 without being dehumidified by the heat exchanger 18b, which may cause the humidity in the living room 2 to rise. In addition, the high-humidity outside air Ao may cause the humidity inside the chamber 16 to rise, which may cause condensation on the inner wall of the chamber 16 and the filter 21.

[0061] In this embodiment of the ventilation and air conditioning method for the house H (hereinafter sometimes referred to as the "ventilation and air conditioning method"), the rise in humidity in the living room 2 can be suppressed. Figure 5 is a flowchart showing an example of the processing procedure for the ventilation and air conditioning method for the house. Each step of the ventilation and air conditioning method is performed by the ventilation and air conditioning system 1 shown in Figure 4. Figure 5 also illustrates the processing procedure during cooling operation by the air conditioner 18.

[0062] [Start ventilation operation (ventilation operation start step)] In the ventilation and air conditioning method of this embodiment, first, the ventilation operation of the house H (shown in Figure 1) is started (ventilation operation start step S1).

[0063] In the ventilation operation start step S1 of this embodiment, first, the ventilation operation start unit 37A included in the program unit 37 shown in Figure 4 is loaded into the working memory 33. The ventilation operation start unit 37A is a program for starting the ventilation operation of the house H shown in Figure 1. When this ventilation operation start unit 37A is executed by the arithmetic unit 31, the control device 20 can be made to function as a means for starting the ventilation operation of the house H.

[0064] In this embodiment, the ventilation operation start step S1 involves the ventilation operation start unit 37A starting the operation of the outside air supply device 17 (outside air supply fan 25) and the transport device 19 (first transport fan 27A and second transport fan 27B) shown in Figure 1. The airflow rates of these outside air supply fan 25, first transport fan 27A, and second transport fan 27B are set appropriately based, for example, the required ventilation rate of the house H (for example, 0.5 times / hour).

[0065] In the ventilation operation start step S1 of this embodiment, outside air Ao (underfloor air Au) for ventilation can be supplied to the chamber 16 by operating the outside air supply device 17 (outside air supply fan 25). Also, when the conveying device 19 (first conveying fan 27A and second conveying fan 27B) starts operating, the inside of the chamber 16 becomes negative pressure, and as shown in Figure 2, return air Ar is drawn into the inside from the inlet 22 of the chamber 16.

[0066] In the ventilation operation start step S1 of this embodiment, the air (mixed air Am) in the chamber 16 is purified by the filter 21. Then, as shown in Figures 1 to 3, the purified air (mixed air Am) is pumped (supplied) to the living room 2 via the transport fan 27 (first transport fan 27A and second transport fan 27B) and the transport duct 28 (first transport duct 28A and second transport duct 28B). As a result, as shown in Figure 1, the ventilation and air conditioning method (ventilation and air conditioning system 1) can ventilate while circulating the air Ai in the first-floor living room 2A and the second-floor living room 2B. A portion of the air Ai (return air Ar) in the living room 2 may be discharged outdoors via an exhaust fan (not shown).

[0067] [Steps to start air conditioning operation] Next, in the ventilation and air conditioning method of this embodiment, the air conditioning operation of the house H is started (air conditioning operation start step S2). In the air conditioning operation start step S2 of this embodiment, the operation of the heat exchanger 18b and the air conditioning fan 18c shown in Figure 2 is started.

[0068] In the air conditioning operation start step S2 of this embodiment, first, the target temperature stored in the data unit 36 ​​shown in Figure 4 and the air conditioning operation start unit 37B included in the program unit 37 are loaded into the working memory 33. The air conditioning operation start unit 37B is a program for starting the air conditioning operation of the house H shown in Figure 1. When this air conditioning operation start unit 37B is executed by the arithmetic unit 31, the control device 20 can be made to function as a means for starting the air conditioning operation of the house H.

[0069] In this embodiment, the air conditioning operation start step S2 is when the air conditioning operation start unit 37B starts the operation (cooling operation) of the air conditioner 18 shown in Figure 1. This starts the operation of the heat exchanger 18b and the air conditioning fan 18c included in the air conditioner 18 shown in Figure 2.

[0070] In the air conditioning operation start step S2 of this embodiment, the operation of the air conditioning fan 18c causes the air inside the chamber 16 (in this example, a mixture Am containing return air Ar and outside air Ao) to pass through the intake port 18i to the heat exchanger 18b. As a result, the mixture Am is heat-exchanged by the heat exchanger 18b. The heat-exchanged conditioned air Ac is then blown into the chamber 16 from the discharge port 18o.

[0071] The conditioned air Ac blown out from the discharge port 18o is purified by the filter 21. Then, as shown in Figures 1 to 3, the purified conditioned air Ac is pumped (supplied) to the living room 2 via the transport fan 27 (first transport fan 27A and second transport fan 27B) and transport duct 28 (first transport duct 28A and second transport duct 28B). As a result, as shown in Figure 1, the ventilation and air conditioning method (ventilation and air conditioning system 1) makes it possible to ventilate and air condition the air Ai in the first-floor living room 2A and the second-floor living room 2B while circulating it.

[0072] In the air conditioning operation start step S2, the control device 20 shown in Figure 4 controls the operation of the heat exchanger 18b and the air conditioning fan 18c based on the temperature of the living room 2 detected by the temperature sensor 23 and the target temperature. This target temperature is stored in the data unit 36 ​​shown in Figure 4. In this embodiment, the operation of the heat exchanger 18b and the air conditioning fan 18c is controlled so that the temperature of the living room 2 approaches the target temperature. This helps maintain the comfort level of the living rooms 2 (first-floor living room 2A and second-floor living room 2B) shown in Figure 1.

[0073] [Determine whether the room temperature meets the target temperature (room temperature determination step)] Next, as shown in Figure 5, in the ventilation and air conditioning method of this embodiment, it is determined whether the temperature of the living room 2 shown in Figure 1 satisfies a predetermined target temperature (living room temperature determination step S3). As described above, Figure 5 illustrates the processing procedure during cooling operation by the air conditioner 18. Therefore, in the living room temperature determination step S3 of this embodiment, it is determined whether the temperature of the living room 2 satisfies the target temperature during cooling operation by the air conditioner 18.

[0074] In the room temperature determination step S3 of this embodiment, first, the target temperature stored in the data unit 36 ​​shown in Figure 4 and the room temperature determination unit 37C included in the program unit 37 are loaded into the working memory 33. The room temperature determination unit 37C is a program for determining whether the temperature of room 2 shown in Figure 1 satisfies a predetermined target temperature. When this room temperature determination unit 37C is executed by the arithmetic unit 31, the control device 20 can function as a means for determining whether the temperature of room 2 satisfies the target temperature.

[0075] Whether the temperature of room 2 satisfies a predetermined target temperature can be appropriately determined by the room temperature determination unit 37C (calculation unit 31). As described above, in this embodiment, when the value obtained by subtracting the target temperature from the temperature of room 2 detected by the temperature sensor 23 shown in Figure 1 becomes 0°C, it is determined that the temperature of room 2 satisfies the target temperature. In the case where a temperature sensor 23 is placed in each of the multiple rooms 2, as in this embodiment, the determination is made, for example, based on the average value of the temperatures of these rooms 2.

[0076] If the temperature of room 2 meets the target temperature (Yes in room temperature determination step S3), the next air conditioning fan operation control step S4 is performed. On the other hand, if it is determined that the temperature of room 2 does not meet the target temperature (No in room temperature determination step S3), the operation continuation step S5 is performed. Note that the operation continuation step S5 may also be performed if the temperature of room 2 deviates from the target temperature (for example, if it becomes 0.5 to 2.0°C or more above the target temperature). This can prevent the air conditioning fan operation control step S4 and the operation continuation step S5 from being switched at short intervals.

[0077] [Stop the operation of the heat exchanger and continue the operation of the air conditioning fan (air conditioning fan operation control step)] Next, in the ventilation and air conditioning method of this embodiment, during cooling operation, a dehumidification promotion mode is performed in which the operation of the heat exchanger 18b shown in Figure 2 is stopped and the operation of the air conditioning fan 18c is continued (air conditioning fan operation control step S4).

[0078] In the air conditioning fan operation control step S4 of this embodiment, first, the air conditioning fan operation control unit 37D included in the program unit 37 shown in Figure 4 is loaded into the working memory 33. The air conditioning fan operation control unit 37D is a program for performing a dehumidification acceleration mode during cooling operation, in which the operation of the heat exchanger 18b is stopped and the operation of the air conditioning fan 18c is continued. When this air conditioning fan operation control unit 37D is executed by the arithmetic unit 31, the control device 20 can be made to function as a means for performing the dehumidification acceleration mode.

[0079] In the air conditioning fan operation control step S4 of this embodiment, the control device 20 (air conditioning fan operation control unit 37D) stops the heat exchanger 18b. In this embodiment, the air conditioning fan operation control step S4 is performed when the temperature of the living room 2 satisfies the target temperature in the living room temperature determination step S3. As a result, the operation of the heat exchanger 18b is stopped, improving energy efficiency while maintaining comfort in the living room 2 (preventing excessive cooling).

[0080] Furthermore, in the air conditioning fan operation control step S4 of this embodiment, the control device 20 (air conditioning fan operation control unit 37D) continues to operate the air conditioning fan 18c. By continuing to operate the air conditioning fan 18c, the mixed air Am containing the hot and humid outside air Ao is guided to pass through the heat exchanger 18b, which has stopped operating.

[0081] The heat exchanger 18b maintains a low temperature for a period of time even after its operation has stopped. Therefore, by bringing the mixed air Am, which contains the hot and humid outside air Ao, into contact with the low-temperature heat exchanger 18b, the moisture in the mixed air Am containing the outside air Ao can be condensed, promoting dehumidification. This dehumidified outside air Ao (mixed air Am) is supplied to the living rooms 2 (first-floor living room 2A and second-floor living room 2B) by the transport device 19, making it possible to suppress the rise in humidity in the living rooms 2, even when the heat exchanger 18b is stopped during cooling operation. Furthermore, since the rise in humidity inside the chamber 16 is suppressed, condensation on the filter 21 and other components can also be suppressed.

[0082] In the air conditioning fan operation control step S4 (air conditioning fan operation control unit 37D shown in Figure 4), it is preferable to control the air conditioning fan 18c, shown in Figure 2, so that its airflow rate is greater than that of the outside air supply fan 25, shown in Figure 1, during the dehumidification acceleration mode. This ensures that, during the air conditioning fan operation control step S4 (in dehumidification acceleration mode), the amount of air (mixed air Am) taken into the air conditioner 18 from the intake port 18i is greater than the amount of outside air Ao blown out from the outside air outlet 24o shown in Figure 2. Therefore, the outside air Ao blown out from the outside air outlet 24o is smoothly taken into the air conditioner 18 from the intake port 18i, thus preventing the gap 26 between the air conditioner 18 (indoor unit 18A) and the chamber 16 from being short-circuited. Consequently, the rise in humidity in the living room 2 can be effectively suppressed.

[0083] In the air conditioning fan operation control step S4 (air conditioning fan operation control unit 37D), it is desirable to control the air conditioning fan 18c so that the airflow of the air conditioning fan 18c shown in Figure 2 is preferably 1.5 times or more the airflow of the outside air supply fan 25 shown in Figure 1, when in dehumidification promotion mode. This more reliably prevents short-circuiting of the outside air Ao and effectively suppresses the rise in humidity in the living room 2. On the other hand, if the airflow of the air conditioning fan 18c shown in Figure 2 becomes unnecessarily large, the noise and energy consumption of the air conditioner 18 may increase. From this viewpoint, in any combination of the above lower limit values, it is desirable to control the air conditioning fan 18c so that the airflow of the air conditioning fan 18c shown in Figure 2 is preferably 2.0 times or less the airflow of the outside air supply fan 25 shown in Figure 1.

[0084] In the air conditioning fan operation control step S4 (air conditioning fan operation control unit 37D), it is preferable to control the air conditioning fan 18c such that the airflow of the transport fan 27 shown in Figure 3 is greater than the airflow of the air conditioning fan 18c shown in Figure 2, when the dehumidification acceleration mode is active. In this embodiment, if there are multiple transport fans 27 (in this example, the first transport fan 27A and the second transport fan 27B), the total airflow of these transport fans 27 is greater than the airflow of the air conditioning fan 18c. This allows the dehumidified outside air Ao (mixed air Am) to be smoothly supplied to the living rooms 2 (first-floor living room 2A and second-floor living room 2B) shown in Figure 1 without accumulating in the chamber 16 during the air conditioning fan operation control step S4 (dehumidification acceleration mode).

[0085] In the air conditioning fan operation control step S4 (air conditioning fan operation control unit 37D), it is desirable to control the air conditioning fan 18c so that the airflow rate (total airflow rate) of the transport fan 27 is preferably 1.1 times or more the airflow rate of the air conditioning fan 18c when in dehumidification acceleration mode. This allows the dehumidified outside air Ao (mixed air Am) to be smoothly supplied to the living rooms 2 (first-floor living room 2A and second-floor living room 2B) without being retained in the chamber 16. On the other hand, if the airflow rate (total airflow rate) of the transport fan 27 becomes unnecessarily large, a large negative pressure will be generated in the chamber 16. This may cause the outside air Ao blown out from the outside air outlet 24o to short-circuit the gap 26 between the air conditioner 18 (indoor unit 18A) and the chamber 16 without being taken into the air conditioner 18 from the intake port 18i. From this perspective, it is desirable that, in any combination of the above lower limit values, the airflow of the transport fan 27 (total airflow) is controlled so that it is preferably 1.5 times or less the airflow of the air conditioning fan 18c.

[0086] [Continue operation of heat exchanger and air conditioning fan (operation continuation step)] Next, as shown in Figure 5, in the ventilation and air conditioning method of this embodiment, the operation of the heat exchanger 18b and the air conditioning fan 18c shown in Figure 2 is continued (operation continuation step S5).

[0087] In the operation continuation step S5 of this embodiment, first, the operation continuation unit 37E included in the program unit 37 shown in Figure 4 is loaded into the working memory 33. The operation continuation unit 37E is a program for continuing the operation of the heat exchanger 18b and the air conditioning fan 18c. When this operation continuation unit 37E is executed by the arithmetic unit 31, the control device 20 can be made to function as a means for continuing the operation of the heat exchanger 18b and the air conditioning fan 18c.

[0088] In the operation continuation step S5 of this embodiment, the control device 20 (operation continuation unit 37E) continues the operation of the heat exchanger 18b and the air conditioning fan 18c. If the operation of the heat exchanger 18b is stopped in the air conditioning fan operation control step S4, the operation of the heat exchanger 18b is restarted. As a result,

[0089] In the operation continuation step S5 of this embodiment, the operation of the heat exchanger 18b and the air conditioning fan 18c is controlled so that the temperature of the living room 2 approaches the target temperature. This allows the comfort level of the living rooms 2 (first-floor living room 2A and second-floor living room 2B) shown in Figure 1 to be maintained.

[0090] [Determine whether or not there is an instruction to terminate ventilation and air conditioning operation (termination determination step)] Next, as shown in Figure 5, in the ventilation and air conditioning method of this embodiment, it is determined whether or not there is an instruction to terminate the ventilation and air conditioning operation by the ventilation and air conditioning system 1 (termination determination step S6).

[0091] In the termination determination step S6 of this embodiment, the termination determination unit 37F, included in the program unit 37 shown in Figure 4, is loaded into the working memory 33. The termination determination unit 37F is a program for determining whether or not there is an instruction to terminate the ventilation and air conditioning operation by the ventilation and air conditioning system 1. By executing this termination determination unit 37F by the arithmetic unit 31, the control device 20 can be made to function as a means for determining whether or not there is an instruction to terminate.

[0092] The determination of whether or not a command to terminate ventilation and air conditioning operation has been issued is made based on the termination command data for ventilation and air conditioning operation. This termination command data may be entered into the input device 34 (shown in Figure 4) by, for example, a user (resident), or it may be entered automatically based on the occurrence of an abnormal termination such as an interrupt process.

[0093] If it is determined that there is an instruction to terminate the ventilation and air conditioning operation ("Yes" in termination decision step S6), the operation termination step S7 is performed. On the other hand, if it is determined that there is no instruction to terminate the ventilation and air conditioning operation ("No" in termination decision step S6), the room temperature decision steps S3 to termination decision step S6 are performed again.

[0094] In the ventilation and air conditioning method of this embodiment, while the ventilation and air conditioning system 1 is operating, the air conditioning control unit 18d shown in Figure 2 alternately stops and restarts the operation of the heat exchanger 18b based on the temperature of the living room 2 and the target temperature. This enables cooling operation in accordance with the temperature of the living room 2, which changes moment by moment, improving energy efficiency while maintaining the comfort of the living room 2 (preventing excessive cooling).

[0095] Furthermore, in the ventilation and air conditioning method of this embodiment, during cooling operation, when the temperature of the living room 2 satisfies a predetermined target temperature, the control device 20 (air conditioning fan operation control unit 37D) shown in Figure 4 activates a dehumidification acceleration mode. In this dehumidification acceleration mode, the air conditioner 18 is controlled so that the operation of the air conditioning fan 18c shown in Figure 2 continues. As a result, during cooling operation, even when the operation of the heat exchanger 18b is stopped, the hot and humid outside air Ao is dehumidified, making it possible to suppress the rise in humidity in the living room 2.

[0096] [End ventilation and air conditioning operation (operation termination step)] Next, as shown in Figure 5, in the ventilation and air conditioning method of this embodiment, the ventilation and air conditioning operation by the ventilation and air conditioning system 1 shown in Figure 1 is terminated (operation termination step S7).

[0097] In the operation termination step S7 of this embodiment, the operation termination unit 37G included in the program unit 37 shown in Figure 4 is loaded into the working memory 33. The operation termination unit 37G is a program for terminating the ventilation and air conditioning operation by the ventilation and air conditioning system 1 shown in Figure 1. When this operation termination unit 37G is executed by the arithmetic unit 31, the control device 20 can be made to function as a means for terminating the ventilation and air conditioning operation.

[0098] In the operation termination step S7 of this embodiment, the operation of the outside air supply device 17 (outside air supply fan 25) shown in Figure 1, the air conditioner 18 (heat exchanger 18b and air conditioning fan 18c shown in Figure 2), and the conveying device 19 (first conveying fan 27A and second conveying fan 27B) is terminated. However, in order to continue ventilation inside the house H, the operation of the outside air supply fan 25, the first conveying fan 27A, and the second conveying fan 27B may be continued. In this case, it is preferable that the airflow rates of the outside air supply fan 25, the first conveying fan 27A, and the second conveying fan 27B be appropriately set based on, for example, the required ventilation rate of the house H (for example, 0.5 times / h).

[0099] [Ventilation and Air Conditioning System (Second Embodiment)] As shown in Figure 3, in the ventilation and air conditioning system 1 of the previous embodiment, an example was shown in which the outside air outlet 24o is arranged in the central part C1 in the width direction D1 of the intake port 18i, but the invention is not limited to this embodiment. Figure 6 is a front view of the chamber 16 of another embodiment of the present invention.

[0100] In this embodiment, the chamber 16 is provided with a space 38 for housing a power supply, circuit board, etc. As a result, in the width direction D1 of the intake port 18i (front view of the air conditioner 18), the central part C6 of the conveying device 19 is eccentrically positioned to one side (the right side in Figure 6) relative to the central part C1 of the intake port 18i. When multiple conveying fans 27 (first conveying fan 27A and second conveying fan 27B) are arranged as in this embodiment, the center position in the width direction D1 of the region T1 where these conveying fans 27 are arranged is identified as the central part C6 of the conveying device 19.

[0101] If the central part C6 of the conveying device 19 is positioned eccentrically to one side (the right side in Figure 6) relative to the central part C1 of the intake port 18i, a larger negative pressure will be generated in the gap 26a between the indoor unit 18A and the chamber 16 formed on that side than in the gap 26b on the other side. In such a chamber 16, if the outside air outlet 24o is positioned at the central part C1 in the width direction D1 of the intake port 18i, as shown in Figure 3, there is a risk that the outside air Ao supplied from the outside air supply duct 24 will short-circuit the gap 26a on one side.

[0102] Furthermore, in this embodiment, the conveying device 19 is provided with a second conveying fan 27B on one side in the width direction D1 (right side in Figure 6) for pressurizing and sending air from the chamber 16 to the second-floor living room 2B (shown in Figure 1). Since the temperature of this second-floor living room 2B tends to be higher than the temperature of the first-floor living room 2A during the summer when air conditioning is in operation, the airflow of the second conveying fan 27B may be controlled to be relatively large. When the airflow of this second conveying fan 27B is relatively large, a larger negative pressure is generated in the gap 26a on one side than in the gap 26b on the other side, which may cause the outside air Ao supplied from the outside air supply duct 24 to short-circuit.

[0103] In this embodiment, the outside air outlet 24o is positioned eccentrically to the other side (left side in Figure 6) of the central part C1 of the suction port 18i. As a result, the outside air outlet 24o is located on the opposite side (the other side) from the gap 26a on one side where a relatively large negative pressure is generated relative to the central part C1 of the suction port 18i. Therefore, it is possible to suppress the outside air Ao blown out from the outside air outlet 24o from short-circuiting the gap 26a on one side. To prevent such short-circuiting, the shortest distance L1 between the central part C1 of the suction port 18i and the central part C6 of the conveying device 19 in the width direction D1 of the suction port 18i is preferably 3 to 20 cm. Similarly, the shortest distance L2 between the central part C1 of the suction port 18i and the center position (central part) C2 of the maximum width of the outside air outlet 24o is preferably 3 to 20 cm.

[0104] Although particularly preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the illustrated embodiments and can be implemented in various modified forms. [Examples]

[0105] A residential ventilation and air conditioning system, including the chamber, outside air supply device, air conditioner, and transport device shown in Figures 2 and 3, was input into a computer as a computer-operable model (Examples and Comparative Examples).

[0106] In the embodiment, an air conditioning operation start step was performed to start the operation of the heat exchanger and air conditioning fan based on the cooling operation procedure shown in Figure 5. Then, when the temperature of the room satisfied a predetermined target temperature, an air conditioning fan operation control step was performed. In this air conditioning fan operation control step, a dehumidification acceleration mode was performed in which the operation of the heat exchanger was stopped and the operation of the air conditioning fan continued. Immediately after the dehumidification acceleration mode was performed, the absolute humidity by weight of the air before it was supplied to the room was calculated by a computer.

[0107] In the comparative example, an air conditioning operation start step was performed, in which the heat exchanger and air conditioning fan were started. When the room temperature reached a predetermined target temperature, both the heat exchanger and the air conditioning fan were shut off, similar to the thermo-off function of conventional air conditioners. Immediately after these operations were stopped, the absolute humidity by weight of the air before it was supplied to the room was calculated by computer. The common specifications are as follows: Percentage of outside air that passes through (is dehumidified by) the heat exchanger after operation has stopped: Example: 80% Comparative example: 20% Ambient humidity by weight: 21.5 g / kg Heat exchanger (when stopped): Temperature: 15℃ Absolute humidity by weight at dew point temperature: 10.65 g / kg

[0108] The test results showed that in the comparative example, the air conditioning fan was also stopped while the heat exchanger was shut down. As a result, the high-temperature, high-humidity outside air could not be adequately brought into contact with the heat exchanger, and therefore dehumidification was not possible. Consequently, the absolute humidity by weight in the comparative example was 19.3 g / kg'.

[0109] On the other hand, in the example, the air conditioning fan continued to operate even after the heat exchanger stopped, allowing the hot, humid outside air to come into sufficient contact with the heat exchanger and be dehumidified. As a result, the absolute humidity by weight in the example was 12.8 g / kg'.

[0110] Thus, compared to the comparative example, the absolute humidity by weight in the embodiment was significantly reduced, even while the heat exchanger was stopped, and the hot, humid outside air was effectively dehumidified. It was confirmed that supplying such dehumidified air to a living space can suppress the rise in humidity in that space.

[0111] [Note] The present invention includes the following embodiments.

[0112] [Invention 1] A ventilation and air conditioning system for ventilating and air conditioning a dwelling with living rooms, Chamber and An outside air supply device that supplies outside air to the inside of the chamber, An air conditioner for conditioned the air inside the chamber, A conveying device that supplies the outside air and / or the air conditioned by the air conditioner to the living room, A temperature sensor for detecting the temperature of the aforementioned living room, Includes a control device, The air conditioner includes a heat exchanger and an air conditioning fan that passes the air in the chamber through the heat exchanger. The control device is An air conditioning operation start unit that starts the operation of the heat exchanger and the air conditioning fan, The system includes an air conditioning fan operation control unit that, during cooling operation, stops the operation of the heat exchanger and continues the operation of the air conditioning fan in a dehumidification promotion mode when the temperature of the room satisfies a predetermined target temperature, A ventilation and air conditioning system for a house. [Invention 2] The outside air supply device includes an outside air supply fan that pressurizes and pumps the outside air. The ventilation and air conditioning system for a house according to the present invention 1, wherein the air conditioning fan operation control unit controls the air conditioning fan so that the airflow of the air conditioning fan is greater than the airflow of the outside air supply fan when the dehumidification promotion mode is active. [Invention 3] The ventilation and air conditioning system for a house according to the present invention, wherein the air conditioning fan operation control unit controls the air conditioning fan so that the airflow of the air conditioning fan is 1.5 times or more the airflow of the outside air supply fan when the dehumidification promotion mode is active. [4th Invention] The conveying device includes a conveying fan that pressurizes the air in the chamber and sends it to the living room. The ventilation and air conditioning system for a house according to any one of the present invention 1 to 3, wherein the air conditioning fan operation control unit controls the air conditioning fan so that the airflow of the transport fan is greater than the airflow of the air conditioning fan when the dehumidification promotion mode is active. [5th ​​Invention] The ventilation and air conditioning system for a house according to the present invention, wherein the air conditioning fan operation control unit controls the air conditioning fan so that the airflow of the transport fan is 1.5 times or less the airflow of the air conditioning fan when the dehumidification promotion mode is active. [Invention 6] The air conditioner includes an intake port for taking in air, including the outside air, The outside air supply device includes an outside air supply duct that guides the outside air into the chamber. The aforementioned outside air supply duct has an outside air outlet that blows the outside air into the intake port, A ventilation and air conditioning system for a house according to any one of inventions 1 to 5, wherein the outside air outlet is positioned in the center of the width direction of the intake port. [7th Invention] The air conditioner includes an intake port for taking in air, including the outside air, The outside air supply device includes an outside air supply duct that guides the outside air into the chamber. The aforementioned outside air supply duct has an outside air outlet that blows the outside air into the intake port, A ventilation and air conditioning system for a house according to any one of invention 1 to 5, wherein, in the width direction of the intake port, the central part of the conveying device is eccentrically positioned to one side with respect to the central part of the intake port, and the outside air outlet is eccentrically positioned to the other side with respect to the central part of the intake port. [8th Invention] A method for ventilating and air conditioning a dwelling with living rooms, The aforementioned house is Chamber and An outside air supply device that supplies outside air to the inside of the chamber, An air conditioner for conditioned the air inside the chamber, A conveying device that supplies the outside air and / or the air conditioned by the air conditioner to the living room, Includes a temperature sensor for detecting the temperature of the room, The air conditioner includes a heat exchanger and an air conditioning fan that passes the air in the chamber through the heat exchanger. The aforementioned method, An air conditioning operation start step in which the heat exchanger and the air conditioning fan are started, The air conditioning fan operation control step includes, during cooling operation, an air conditioning fan operation control step in which, when the temperature of the room satisfies a predetermined target temperature, the operation of the heat exchanger is stopped and the operation of the air conditioning fan is continued in a dehumidification promotion mode, Ventilation and air conditioning methods for houses. [Invention 9] The outside air supply device includes an outside air supply fan that pressurizes and pumps the outside air. The ventilation and air conditioning method for a house according to the present invention, wherein, in the air conditioning fan operation control step, the air conditioning fan is controlled so that the airflow of the air conditioning fan is greater than the airflow of the outside air supply fan when the dehumidification promotion mode is active, as described in the present invention, 8. [Invention 10] The ventilation and air conditioning method for a house according to the present invention, wherein the air conditioning fan operation control step controls the air conditioning fan so that the airflow of the air conditioning fan is 1.5 times or more the airflow of the outside air supply fan when the dehumidification promotion mode is active. [Invention 11] The conveying device includes a conveying fan that pressurizes the air in the chamber and sends it to the living room. The method for ventilating and air conditioning a house according to any one of the present invention 8 to 10, wherein the air conditioning fan operation control step controls the air conditioning fan so that the airflow of the transport fan is greater than the airflow of the air conditioning fan when the dehumidification promotion mode is active. [Invention 12] The ventilation and air conditioning method for a house according to the present invention 11, wherein the air conditioning fan operation control step controls the air conditioning fan so that the airflow of the transport fan is 1.5 times or less the airflow of the air conditioning fan when the dehumidification promotion mode is active. [Explanation of symbols]

[0113] 1. Ventilation and air conditioning system 2 living room 16 chambers 17. Outdoor air supply device 18. Air conditioner 19 Conveying device 20 Control device

Claims

1. A ventilation and air conditioning system for ventilating and air conditioning a dwelling with living rooms, Chamber and An outside air supply device that supplies outside air to the inside of the chamber, An air conditioner for conditioned the air inside the chamber, A conveying device that supplies the outside air and / or the air conditioned by the air conditioner to the living room, A temperature sensor for detecting the temperature of the aforementioned living room, Includes a control device, The air conditioner includes a heat exchanger and an air conditioning fan that passes the air in the chamber through the heat exchanger. The control device is An air conditioning operation start unit that starts the operation of the heat exchanger and the air conditioning fan, The system includes an air conditioning fan operation control unit that, during cooling operation, stops the operation of the heat exchanger and continues the operation of the air conditioning fan in a dehumidification promotion mode when the temperature of the room satisfies a predetermined target temperature, A ventilation and air conditioning system for a house.

2. The outside air supply device includes an outside air supply fan that pressurizes and pumps the outside air. The ventilation and air conditioning system for a house according to claim 1, wherein the air conditioning fan operation control unit controls the air conditioning fan so that the airflow of the air conditioning fan is greater than the airflow of the outside air supply fan when the dehumidification promotion mode is active.

3. The ventilation and air conditioning system for a house according to claim 2, wherein the air conditioning fan operation control unit controls the air conditioning fan so that the airflow of the air conditioning fan is 1.5 times or more the airflow of the outside air supply fan when the dehumidification promotion mode is active.

4. The conveying device includes a conveying fan that pressurizes the air in the chamber and sends it to the living room. The ventilation and air conditioning system for a house according to claim 1, wherein the air conditioning fan operation control unit controls the air conditioning fan so that the airflow of the transport fan is greater than the airflow of the air conditioning fan when the dehumidification promotion mode is active.

5. The ventilation and air conditioning system for a house according to claim 4, wherein the air conditioning fan operation control unit controls the air conditioning fan so that the airflow of the transport fan is 1.5 times or less the airflow of the air conditioning fan when the dehumidification promotion mode is active.

6. The air conditioner includes an intake port for taking in air, including the outside air, The outside air supply device includes an outside air supply duct that guides the outside air into the chamber. The aforementioned outside air supply duct has an outside air outlet that blows the outside air into the intake port, A ventilation and air conditioning system for a house according to any one of claims 1 to 5, wherein the outside air outlet is located in the center of the width direction of the intake port.

7. The air conditioner includes an intake port for taking in air, including the outside air, The outside air supply device includes an outside air supply duct that guides the outside air into the chamber. The aforementioned outside air supply duct has an outside air outlet that blows the outside air into the intake port, A ventilation and air conditioning system for a house according to any one of claims 1 to 5, wherein, in the width direction of the intake port, the central part of the conveying device is eccentrically positioned to one side with respect to the central part of the intake port, and the outside air outlet is eccentrically positioned to the other side with respect to the central part of the intake port.

8. A method for ventilating and air conditioning a dwelling with living rooms, The aforementioned house is Chamber and An outside air supply device that supplies outside air to the inside of the chamber, An air conditioner for conditioned the air inside the chamber, A conveying device that supplies the outside air and / or the air conditioned by the air conditioner to the living room, Includes a temperature sensor for detecting the temperature of the room, The air conditioner includes a heat exchanger and an air conditioning fan that passes the air in the chamber through the heat exchanger. The aforementioned method, An air conditioning operation start step in which the heat exchanger and the air conditioning fan are started, The air conditioning fan operation control step includes, during cooling operation, an air conditioning fan operation control step in which, when the temperature of the room satisfies a predetermined target temperature, the operation of the heat exchanger is stopped and the operation of the air conditioning fan is continued in a dehumidification promotion mode, Ventilation and air conditioning methods for houses.

9. The outside air supply device includes an outside air supply fan that pressurizes and pumps the outside air. The ventilation and air conditioning method for a house according to claim 8, wherein, in the air conditioning fan operation control step, the air conditioning fan is controlled so that the airflow of the air conditioning fan is greater than the airflow of the outside air supply fan when the dehumidification promotion mode is active.

10. The ventilation and air conditioning method for a house according to claim 9, wherein the air conditioning fan operation control step controls the air conditioning fan so that the airflow of the air conditioning fan is 1.5 times or more the airflow of the outside air supply fan when the dehumidification promotion mode is active.

11. The conveying device includes a conveying fan that pressurizes the air in the chamber and sends it to the living room. The ventilation and air conditioning method for a house according to claim 8, wherein the air conditioning fan operation control step controls the air conditioning fan so that the airflow of the transport fan is greater than the airflow of the air conditioning fan when the dehumidification promotion mode is active.

12. The ventilation and air conditioning method for a house according to claim 11, wherein the air conditioning fan operation control step controls the air conditioning fan so that the airflow of the transport fan is 1.5 times or less the airflow of the air conditioning fan when the dehumidification promotion mode is active.

Images