Residential ventilation systems and fragrance generators

Abstract

To provide a residential ventilation system which can change whether or not to emit a fragrance and the type of fragrance to be emitted, and does not require electrical wiring work to a fragrance emitter. [Solution] The residential ventilation system includes a fragrance emitting device 80 attached to an air intake grille. The fragrance emitting device 80 includes a case 81, a movable partition member 82, an elastic member 83, and an interlocking member 84. The movable partition member 82 is arranged within the case 81 so as to be movable in the vertical direction. The movable partition member 82 has a lower box 133 having an internal space 149 and an upper box 135 having an internal space 176. A first type of fragrance 98 is stored in the internal space 149. A second type of fragrance 99 is stored in the internal space 176. The movable partition member 82 moves in the vertical direction due to the interlocking member 84 moving downward in response to the wind and the upward biasing force it receives from the elastic member 83. The type of fragrance changes as the wind force received by the interlocking member 84 changes.

Description

[Technical Field]

[0001] The present invention relates to a residential ventilation system that ventilates a house while supplying fragrant air to the rooms, and a fragrance emitting device used in the residential ventilation system. [Background technology]

[0002] Patent Document 1 discloses a residential ventilation system equipped with a fragrance generator. This residential ventilation system includes an outside air intake duct, an exhaust duct, a ventilation device, an air supply duct, and a fragrance generator. The fragrance generator is attached to an air supply port in the ceiling. The fragrance generator contains a fragrance.

[0003] Patent Document 2 discloses a fragrance supply device capable of changing the type of fragrance. The fragrance supply device includes a cylindrical outer box with a bottom, a cylindrical storage container housed within the outer box, a step motor, and a control unit. The storage container is supported by the outer box so as to be rotatable around a central axis. The interior space of the storage container is divided into multiple chambers by multiple partitions extending radially from the center toward the side walls. One chamber does not contain any fragrance, and the other multiple chambers contain different types of fragrance. Multiple air outlets are opened on the outer wall of the storage container. On the other hand, only one air outlet is opened on the side wall of the outer box. The storage container is rotated by a step motor to a position where one of the air outlets faces the air outlet of the outer box. By switching the rotation position of the storage container, the type of fragrance supplied by the fragrance supply device and whether or not the fragrance is emitted can be changed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-309606 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-21923 Summary of the Invention [Problem to be solved by the invention]

[0005] When the fragrance supply device disclosed in Patent Document 2 is installed in a residential air intake, electrical wiring work is required to supply power to the control unit and step motor. On the other hand, it is possible to manually rotate the storage container without using the control unit and step motor, but manually operating a ceiling-mounted fragrance supply device makes it difficult to use.

[0006] The present invention was made in consideration of the above-mentioned circumstances, and one of its objects is to make it possible to change whether or not a fragrance is emitted and the type of fragrance to be emitted. Another object is to eliminate the need for electrical wiring work to connect a fragrance emitting device to a home. [Means for solving the problem]

[0007] (1) The residential ventilation system of the present invention is installed in a home and includes a ventilation device having a blowing function for taking in and sending out outside air, an air intake duct connecting the ventilation device to an air intake port on the ceiling of a room, an operation panel that accepts user input operations, a controller that can control the wind speed of the air supplied from the air intake port to the room in two or more stages based on input values ​​from the operation panel, and a fragrance emitting device. The fragrance emitting device includes a case having an internal space, the case having an air inlet and an air outlet connected to the internal space, the air inlet being located in a flow path of air supplied by the ventilation device, a movable partition member arranged in the internal space to be movable between a first position and a second position, the movable partition member dividing the internal space into a first chamber and a second chamber capable of storing an aromatic agent, an elastic member biasing the movable partition member from the first position toward the second position, and an interlocking member having a wind-receiving portion that receives the air supplied by the ventilation device and abuts against the movable partition member, causing the movable partition member to move from the second position to the first position by the wind force of the air. The first position is a position where the first chamber is connected to the air outlet, and the second position is a position where the second chamber is connected to the air outlet.

[0008] The user, who is a resident of the home, uses the operation panel to set the ventilation volume, such as strong / normal / weak or off / ventilation. The ventilation volume is the amount of air supplied from outside into the home per unit time, and indicates wind power. The movable partition member is set to the second position by the biasing force of the elastic member, and is moved from the second position to the first position by the wind power of the air received by the wind-receiving section. If a fragrance is stored in only one of the first and second compartments, changing the wind power will change whether or not the fragrance is emitted. If different types of fragrance are stored in the first and second compartments, changing the wind power will change the type of fragrance. In other words, the home ventilation system can change whether or not to emit a fragrance, or the type of fragrance to be emitted, in response to operations on the operation panel.

[0009] (2) The controller may be capable of controlling the wind force at the air inlet in three or more stages based on input values ​​from the operation panel. The partition movable member is movable to the first position, the second position, and a third position. The third position is a position where neither the first chamber nor the second chamber is in communication with the air outlet. The interlocking member moves the partition movable member from the second position to the first position or the third position depending on the wind force of the air received by the air receiving section.

[0010] When a user changes the airflow speed using the operation panel, the movable partition member moves to one of the first, second, and third positions depending on the changed airflow speed. Different types of fragrances are stored in the first and second chambers. When the movable partition member is in the first or second position, the fragrance emitting device emits a fragrance. Since the third position is a position where neither the first nor second chamber is connected to the air outlet, the fragrance emitting device does not emit a fragrance when the movable partition member is in the third position. In other words, the residential ventilation system can change whether to emit a fragrance and the type of fragrance to emit in response to the airflow speed setting on the operation panel.

[0011] (3) The controller may be capable of controlling the wind force at the air supply port to a first wind force that is a basic setting, a second wind force that is stronger than the first wind force, and a third wind force that is weaker than the first wind force, based on input values ​​from the operation panel. The interlocking member receives air of the first wind force at the wind receiving portion and moves the partition movable member to the third position, receives air of the second wind force at the wind receiving portion and moves the partition movable member to the first position, and receives air of the third wind force at the wind receiving portion and moves the partition movable member to the second position.

[0012] When ventilation is performed at the basic setting of first wind speed, unscented air is supplied to the rooms of the house. If the user desires to emit a fragrance, they operate the operation panel to change the basic setting of first wind speed to second or third wind speed. Therefore, the residential ventilation system of the present invention normally ventilates without fragrance when the user does not intentionally operate the operation panel, and emits a fragrance only when the user intentionally operates the operation panel.

[0013] (4) The residential ventilation system according to the present invention may further include a cylindrical air intake member that defines the air intake, a guide member disposed within the air intake member and supporting the interlocking member so that it can move vertically, and a cover member disposed below the air intake, the cover having a through-hole into which the fragrance emitting device fits. The movable partition member divides the internal space into upper and lower parts and is supported by the case so that it can move vertically. The elastic member biases the movable partition member upward, using the case as a fulcrum. The air inlet opens at the top of the case. The lower end of the interlocking member is inserted into the internal space of the case through the air inlet and abuts against the movable partition member from above.

[0014] The lower end of the interlocking member is inserted into the interior space of the case through the air inlet and abuts against the movable partition member from above. Therefore, when the case is pulled downward through the through-hole of the cover member, it separates from the interlocking member. That is, the user can remove only the case from the cover member. After removing the case from the cover member, the user can refill or replace the fragrance inside the case. As a result, compared to when both the cover member and the interlocking member must be removed from the ceiling, refilling and replacing the fragrance, as well as maintenance such as repairs and maintenance, are easier.

[0015] (5) The operation panel may display information about the fragrance in association with the wind force.

[0016] The information about the fragrance may be, for example, the presence or absence of a fragrance and the type of fragrance. The information about the fragrance is displayed in association with the wind power on the operation panel, so the user can easily understand the relationship between wind power and the presence or type of fragrance and set the wind power accordingly. As a result, the home ventilation system becomes easier to use.

[0017] (6) A fragrance generating device according to the present invention includes a case having an internal space, the case having an air inlet and an air outlet connected to the internal space, the air inlet being located in a flow path of air supplied from an air inlet of a room, a movable partition member arranged in the internal space to be movable between a first position and a second position, the movable partition member dividing the internal space into a first chamber and a second chamber capable of storing an aromatic agent, an elastic member biasing the movable partition member from the first position toward the second position, and an interlocking member having a wind-receiving portion that receives air supplied to the air inlet, abutting the movable partition member, and moving the movable partition member from the second position to the first position by the wind force of the air. The first position is a position where the first chamber is connected to the air outlet, and the second position is a position where the second chamber is connected to the air outlet.

[0018] The present invention can also be seen as a fragrance generating device. [Effects of the Invention]

[0019] The residential ventilation system of the present invention can change whether or not to emit a fragrance and the type of fragrance to be emitted. Furthermore, the residential ventilation system of the present invention does not require electrical wiring work to the air intake vent in the ceiling. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic cross-sectional view of a house 11 to which a residential ventilation system 10 according to an embodiment is attached. [Figure 2] FIG. 2 is a functional block diagram of the residential ventilation system 10. [Figure 3] 3(A) to 3(C) are front views of an operation panel 60 according to the embodiment, and FIG. 3(D) is a front view of an operation panel 180 according to a modified example. [Figure 4] FIG. 4 is an enlarged view of an area IV surrounded by a dashed line in FIG. 1, and is also a cross-sectional view of the air intake grille 70. As shown in FIG. [Figure 5] FIG. 5 is a perspective view of the air intake grill 70. As shown in FIG. [Figure 6] FIG. 6 is a perspective view of the air intake grille 70 with the cover member 74 removed. [Figure 7] FIG. 7 is a cross-sectional view of the fragrance emitting device 80. [Figure 8] FIG. 8 is an exploded perspective view of the fragrance emitting device 80. As shown in FIG. [Figure 9] FIG. 9 is a diagram illustrating the operation of the fragrance emitting device 80. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described. Note that the embodiment described below is merely an example of the present invention, and it goes without saying that the embodiment of the present invention can be appropriately modified without departing from the gist of the present invention.

[0022] [Overview of 10 residential ventilation systems] As shown in FIG. 1, a residential ventilation system 10 described in this embodiment is attached to a house 11. The house 11 may be a private residence or an apartment building. The house 11 may be a single-story house or may have multiple floors. In the example shown in FIG. 1, the house 11 is a single-story private residence having multiple rooms including a room 12, a hallway 13, a sanitary room, and a hallway. Note that FIG. 1 is a schematic diagram, and rooms other than the room 12, the sanitary room, the hallway, and the like are not shown.

[0023] The house 11 is a so-called highly airtight house, with high airtightness and thermal insulation. When ventilation is not performed, the amount of outside air flowing into the house 11 is small. Outside air refers to the air outside the house 11. The house ventilation system 10 always performs ventilation when the resident is at home. Ventilation means replacing some of the air inside the house 11 with outside air.

[0024] The house 11 is a house that employs so-called whole-house ventilation. Whole-house ventilation means ventilating the house as a whole, rather than ventilating multiple rooms individually. For whole-house ventilation, the house 11 has an air intake 15, an air vent 17, and an exhaust vent 19. The air intake 15 is opened in the ceiling 14 of the room 12. The air vent 17 is opened in the wall 16 that separates the room 12 from the hallway 13. The exhaust vent 19 is opened in the wall 18 that separates the hallway 13 or the entrance hall. The air supplied to the room 12 from the air intake 15 flows into the hallway 13 or the entrance hall through the air vent 17 and is exhausted outside the house 11 through the exhaust vent 19 in the hallway 13 or the entrance hall.

[0025] The house 11 is equipped with an air conditioner 27 shown in Fig. 2. The air conditioner 27 is not shown in Fig. 1. The air conditioner 27 is placed above the ceiling 14 of the hallway 13 or entrance hall, or under the floor.

[0026] Air conditioner 27 has an indoor unit 28 and an outdoor unit 29. Air conditioner 27 adjusts the temperature of house 11. For example, a commercially available or existing air conditioner is used as air conditioner 27. Air conditioner 27 may be attached to house 11 as part of residential ventilation system 10, or may be attached to house 11 separately from residential ventilation system 10.

[0027] [10 components of a residential ventilation system] Residential ventilation system 10 includes an outside air inlet duct 31, an exhaust duct 32, a ventilation device 33, an air supply duct 36, an exhaust duct 37, and blower fans 41, 42, 43, and 44. Residential ventilation system 10 also includes a controller 50 and an operation panel 60 shown in Fig. 2, and an air supply grille 70 and a fragrance emitting device 80 shown in Fig. 4.

[0028] The outside air inlet duct 31 shown in Fig. 1 is a duct that guides outside air into the house 11. One end of the outside air inlet duct 31 is connected to the exterior wall 20 of the house 11. An opening 21 that connects the inside of the outside air inlet duct 31 to the outside is opened in the exterior wall 20. The other end of the outside air inlet duct 31 is connected to a ventilation device 33. The outside air flows into the ventilation device 33 through the opening 21 and the inside of the outside air inlet duct 31.

[0029] The blower fan 41 is disposed in the opening 21. However, the blower fan 41 may also be disposed in the outside air inlet duct 31. The blower fan 41 generates an air flow in the outside air inlet duct 31 that flows from the opening 21 toward the ventilation device 33. The solid arrows shown in Figures 1, 4, and 9 indicate the air flow.

[0030] Exhaust duct 32 is a duct that exhausts air inside house 11 to the outside of house 11. One end of exhaust duct 32 is connected to exterior wall 20 of house 11. An opening 22 that connects the inside of exhaust duct 32 to the outside is opened in exterior wall 20. The other end of exhaust duct 32 is connected to ventilation device 33. Air inside house 11 is exhausted to the outside of house 11 through exhaust duct 32 and opening 22.

[0031] The blower fan 42 is disposed in the opening 22. However, the blower fan 42 may be disposed inside the exhaust duct 32. The blower fan 42 generates a flow of air in the exhaust duct 32 from the ventilation device 33 toward the opening 22.

[0032] The ventilation device 33 is placed above the ceiling 14 of the corridor 13, entrance hall, etc., or under the floor. In the example shown in Fig. 1, the ventilation device 33 is placed under the floor. The ventilation device 33 has a heat exchanger 34. The heat exchanger 34 exchanges heat between air flowing in from the outside through the outside air inlet duct 31 and air exhausted to the outside through the exhaust duct 32.

[0033] The ventilation device 33 has a blower fan 35. The blower fan 35 sends out the air that has flowed in through the outside air inlet duct 31 and has undergone heat exchange in the heat exchanger 34 to the air supply duct 36. In other words, the ventilation device 33 has a blowing function. Note that the blower fans 41, 42, 43, and 44 may be part of the ventilation device 33.

[0034] For example, a commercially available or existing ventilation device can be used as the ventilation device 33.

[0035] The air supply duct 36 is a duct that guides the outside air after heat exchange into the room 12. One end of the air supply duct 36 is connected to the ventilation device 33. The air supply duct 36 extends from the ventilation device 33 to the ceiling 14 of the room 12. The other end of the air supply duct 36 is connected to an air supply grill 70 attached to the ceiling 14 of the room 12. In FIG. 1, only the air supply duct 36 connected to the room 12 is shown, and the air supply ducts 36 that connect the ventilation device 33 to the entrance, sanitary room, corridor, etc. are not shown.

[0036] The blower fan 43 is disposed inside the air intake duct 36. The blower fan 43, together with the blower fan 35 of the ventilation device 33, generates a flow of air inside the air intake duct 36 that flows from the ventilation device 33 toward the air intake grille 70.

[0037] Exhaust duct 37 is a duct that guides air inside house 11 to ventilation device 33. One end of exhaust duct 37 is connected to wall 18 that defines hallway 13. An exhaust port 19 that connects exhaust duct 37 to hallway 13 is opened in wall 18. The other end of exhaust duct 37 is connected to ventilation device 33. Air inside house 11 is guided to ventilation device 33 through exhaust port 19 and exhaust duct 37.

[0038] The blower fan 44 is disposed inside the exhaust duct 37. The blower fan 44 generates a flow of air in the exhaust duct 37 from the exhaust port 19 toward the ventilation device 33.

[0039] [Controller 50] 2 is a management terminal equipped with a microcomputer. Alternatively, the controller 50 may be a personal computer or a tablet. The controller 50 is installed in the house 11.

[0040] The controller 50 has a CPU 51, which is a central processing unit, a memory 52, and a communication interface 53. The CPU 51, the memory 52, and the communication interface 53 are interconnected by a communication bus (not shown).

[0041] The memory 52 stores an operating system (OS) 54, a control program 55, and various control values. The OS 54 and the control program 55 are executed by the CPU 51. The OS 54 and the control program 55 use the various control values ​​to control the operation of the air conditioner 27, the ventilation device 33, the blower fans 41, 42, 43, and 44, and the operation panel 60. The control values ​​will be described in detail later.

[0042] The communication interface 53 is wiredly connected to the ventilation device 33, the blower fans 41, 42, 43, and 44, and the operation panel 60 via a communication cable. Alternatively, the communication interface 53 is wirelessly connected to the ventilation device 33, the blower fans 41, 42, 43, and 44, and the operation panel 60.

[0043] [Operation Panel 60] 3A, the operation panel 60 has a touch panel 61, a first operation button 62, a second operation button 63, and an operation button 64. The operation panel 60 also has a communication interface 65 shown in FIG.

[0044] The operation button 64 is a button that accepts instructions to start and stop the residential ventilation system 10. Based on the operation of the operation button 64, the controller 50 starts or ends the drive control of the air conditioner 27, the ventilation device 33, and the blower fans 41, 42, 43, and 44. Based on the operation of the operation button 64, the controller 50 also starts or ends the display control of the touch panel 61.

[0045] The touch panel 61 has a display 66 and a transparent plate-like touch sensor 67 overlaid on the display 66 .

[0046] Touch panel 61 displays the setting display screen shown in Figures 3(A) to 3(C). The setting display screen has an "Air Conditioning Settings" icon 68 and the words "Cooling," "25°C," and "In Operation." The setting display screen also has an "Fragrance Settings" icon 69 and the words "No Fragrance (Normal)" and "In Operation."

[0047] The first operation button 62 and the second operation button 63 are buttons that accept input of the air conditioning temperature setting for the air conditioner 27. The first operation button 62 has a graphic indicating an upward movement and accepts an increase in the numerical value. The second operation button 63 has a graphic indicating a downward movement and accepts a decrease in the numerical value.

[0048] The operation panel 60 accepts input operations from the user through the touch sensor 67, the first operation button 62, and the second operation button 63. The settings input to the operation panel 60 through the touch sensor 67, the first operation button 62, and the second operation button 63 are examples of input values. The operation panel 60 transmits the input values, which are the input settings, to the controller 50.

[0049] When a resident user wishes to change the air conditioning temperature, the user selects the "air conditioning settings" icon 68 displayed on the touch panel 61. When the "air conditioning settings" icon 68 is selected, the operation panel 60 causes the text "25°C" to flash. The operation panel 60 also enables the first operation button 62 and the second operation button 63 to change the numerical value. The user operates the first operation button 62 or the second operation button 63 to change the air conditioning temperature setting.

[0050] When the user wishes to change the presence or absence of fragrance or the type of fragrance, the user selects the "fragrance setting" icon 69 displayed on the touch panel 61. When the "fragrance setting" icon 69 is selected, the operation panel 60 causes the words "No fragrance (normal)" to flash. The operation panel 60 also enables the first operation button 62 and the second operation button 63 to change the presence or absence of fragrance or the type of fragrance. The user operates the first operation button 62 or the second operation button 63 to change the setting for the presence or absence of fragrance or the type of fragrance to "first fragrance (strong)" or "second fragrance (weak)."

[0051] The word "normal" shown in FIG. 3(A), the word "strong" shown in FIG. 3(B), and the word "weak" shown in FIG. 3(C) indicate the ventilation volume. The ventilation volume means the amount of air blown out from the air intake 15 per unit time. The amount of air blown out from the air intake 15 per unit time also indicates wind power. In other words, the words "normal," "strong," and "weak" indicate the ventilation volume and wind power. The words "normal," "strong," and "weak" are examples of information indicating wind power.

[0052] The word "normal" shown in Fig. 3(A) means that ventilation is performed at the basic setting wind power. The basic setting wind power is the wind power determined by a first control value group pre-stored in memory 52. ​​The first control value group refers to a group of control values ​​for ventilation device 33 and blower fans 41, 42, 43, 44 that result in the basic setting wind power.

[0053] When the residential ventilation system 10 starts operating, the controller 50 uses the first group of control values ​​to drive the ventilation device 33 and the blower fans 41, 42, 43, and 44 to perform ventilation at the basic wind speed. The basic wind speed is an example of the first wind speed.

[0054] When the user changes the setting to "First Fragrance (Strong)" via the operation panel 60, the controller 50 performs drive control using the second control value group. The second control value group refers to a group of control values ​​for the ventilation device 33 and the blower fans 41, 42, 43, 44 that provide a stronger wind force than the basic setting. A wind force stronger than the basic setting is an example of the second wind force.

[0055] When the user changes the setting to "second fragrance (weak)" via the operation panel 60, the controller 50 performs drive control using a third group of control values. The third group of control values ​​refers to a group of control values ​​for the ventilation device 33 and the blower fans 41, 42, 43, 44 that result in a wind force weaker than the basic setting. A wind force weaker than the basic setting is an example of a third wind force.

[0056] In this way, the controller 50 can control the wind force of the air supplied to the room 12 in three stages.

[0057] The memory 52 stores other control values ​​such as the control value of the air conditioner 27 in addition to the first, second, and third control value groups.

[0058] The words "no fragrance" shown in Figure 3(A) indicate that fragrance emitting device 80 does not emit a fragrance and unscented air is supplied to room 12. The words "no fragrance" correspond to the words "normal." That is, the words "no fragrance (normal)" shown in Figure 3(A) indicate that unscented air is supplied to room 12 when ventilation is performed with the basic wind speed setting.

[0059] The words "first fragrance" shown in Figure 3(B) indicate that fragrance emitting device 80 emits a first type of fragrance and supplies air containing the first type of fragrance to room 12. The first type of fragrance refers to the fragrance emitted by a first type of fragrance 98 housed in case 81 of fragrance emitting device 80 shown in Figure 7.

[0060] As shown in Figure 3(B), the characters "First Fragrance" are associated with the character "Strong." That is, the characters "First Fragrance (Strong)" indicate that when ventilation is performed at a second wind speed that is stronger than the basic wind speed setting, air containing a first type of fragrance is supplied to room 12.

[0061] The words "second fragrance" shown in Figure 3(C) indicate that fragrance emitting device 80 emits a second type of fragrance and supplies air containing the second type of fragrance to room 12. The second type of fragrance refers to the fragrance emitted by a second type of fragrance 99 housed in case 81 of fragrance emitting device 80 shown in Figure 7.

[0062] As shown in Figure 3(C), the characters "Second Fragrance" are associated with the characters "Weak." That is, the characters "Second Fragrance (Weak)" indicate that when ventilation is performed at a third wind speed, which is weaker than the basic wind speed setting, air containing a second type of fragrance is supplied to room 12.

[0063] The words "No Fragrance," "First Fragrance," and "Second Fragrance" are examples of information about fragrance. That is, operation panel 60 displays information about fragrance in association with the airflow rate.

[0064] The user recognizes the correspondence between the ventilation volume and the presence or absence of fragrance and the type of fragrance from the text "No fragrance (normal)," "First fragrance (strong)," and "Second fragrance (weak)." If the user wants to change the presence or absence of fragrance or the type of fragrance, the user determines the setting from the text "No fragrance," "First fragrance," or "Second fragrance." If the user wants to change the ventilation volume, the user determines the setting from the text "Normal," "Strong," or "Weak" that indicates the ventilation volume.

[0065] [Air Intake Grille 70] 4, 5, and 6 is a member that connects the inside of the air supply duct 36 with the inside of the room 12. The air supply grill 70 is attached to the ceiling 14.

[0066] The air intake grille 70 comprises an air intake port member 71, a ceiling mounting member 72, a frame body 73, a cover member 74, and guide members 91 and 92.

[0067] Air inlet member 71 is cylindrical with its central axis extending in the vertical direction. Air inlet member 71 is placed in circular opening 23 in ceiling 14. The opening at the bottom of air inlet member 71 is air inlet 15. In other words, air inlet member 71 is a member that defines air inlet 15. Air inlet member 71 may also be in the shape of a square tube.

[0068] The end of the air intake duct 36 faces downward. The air intake member 71 is located below the end of the air intake duct 36. The end of the air intake duct 36 is connected to the upper end of the air intake member 71. For example, the end of the air intake duct 36 is connected to the upper end of the air intake member 71 by a connecting member (not shown). Alternatively, the upper end of the air intake member 71 may be fitted into the air intake duct 36. Alternatively, the end of the air intake duct 36 may be fitted into the air intake member 71. The inside of the air intake duct 36 and the inside of the air intake member 71 are in communication. Air flowing through the air intake duct 36 flows into the air intake member 71.

[0069] The ceiling mounting member 72 is in the shape of a rectangular plate. The ceiling mounting member 72 has a circular opening 75 in the center. The upper surface, which is the main surface of the ceiling mounting member 72, abuts against the underside of the ceiling 14. The ceiling mounting member 72 is attached to the ceiling 14 using fasteners such as screws. The circular opening 75 in the ceiling mounting member 72 is located below the opening at the lower end of the air intake port member 71. Air that flows into the air intake port member 71 from the air intake duct 36 passes through the opening 75 in the ceiling mounting member 72.

[0070] An airflow direction member 76 shown in Figure 6 is attached to the underside of the ceiling mounting member 72. The airflow direction member 76 is strip-shaped. The airflow direction member 76 protrudes downward from the underside of the ceiling mounting member 72. The airflow direction member 76 limits the direction of air that flows into the room 12 through the gap between the ceiling mounting member 72 and a cover member 74 (described below).

[0071] The frame 73 has a rectangular frame shape and surrounds the periphery of the rectangular plate-shaped ceiling mounting member 72. The frame 73 is a so-called decorative member.

[0072] The cover member 74 is a rectangular plate of approximately the same size as the ceiling mounting member 72. The cover member 74 is positioned below the ceiling mounting member 72 at a distance from the ceiling mounting member 72. The cover member 74 is attached to the ceiling mounting member 72 with bolts 24 and nuts 25. In other words, the top surface, which is the main surface of the cover member 74, faces the ceiling mounting member 72 in the vertical direction. Air that passes through the opening 75 in the ceiling mounting member 72 flows into the room 12 through the gap between the ceiling mounting member 72 and the cover member 74. The direction of the air flowing into the room 12 is limited by the air direction member 76.

[0073] The cover member 74 has a through-hole 77 in the center. The through-hole 77 passes through the cover member 74 in the up-down direction. An aroma emitting device 80 (described below) is fitted into the through-hole 77. That is, the through-hole 77 is a hole into which the aroma emitting device 80 is attached. The through-hole 77 is closed by the attached aroma emitting device 80.

[0074] Guide members 91 and 92 are located inside the cylindrical air inlet member 71. Guide members 91 and 92 have the same shape. Guide members 91 and 92 have a shaft 93 and a ring 94. Guide member 91 and guide member 92 are lined up one above the other. Guide member 91 is located above guide member 92 and is spaced apart from guide member 92.

[0075] One end of shaft 93 abuts against and is fixed to the inner circumferential surface of cylindrical air inlet member 71. The other end of shaft 93 is located at the center of cylindrical air inlet member 71. In other words, shaft 93 extends from the inner circumferential surface of air inlet member 71 toward the center of air inlet member 71.

[0076] The ring 94 is annular. The ring 94 is fixed to the other end of the shaft 93. That is, the ring 94 is located at the center of the cylindrical air inlet member 71. A shaft 86 of an interlocking member 84 of the fragrance emitting device 80 (described below) is inserted through the ring 94. The guide members 91 and 92 support the interlocking member 84 so that it can move up and down.

[0077] [Fragrance Generator 80] As shown in FIG. 7, the fragrance emitting device 80 includes a case 81, a movable partition member 82, an elastic member 83, and an interlocking member 84.

[0078] As shown in FIG. 4, the interlocking member 84 has a wind receiving plate 85 and a shaft 86 .

[0079] The wind receiving plate 85 is in the shape of a circular or rectangular plate. The wind receiving plate 85 is located at the center of the cylindrical air inlet member 71. The wind receiving plate 85 is also arranged with its main surface facing upward. The wind receiving plate 85 receives air flowing into the air inlet member 71 on its upper surface. The interlocking member 84 is pushed downward by the wind received by the upper surface of the wind receiving plate 85. The wind receiving plate 85 is an example of a wind receiving section.

[0080] The shaft 86 protrudes downward from the center of the underside of the wind-receiving plate 85. The shaft 86 is inserted through two rings 94. The interlocking member 84 is supported by guide members 91 and 92 so as to be movable in the up-down direction. The interlocking member 84 is moved downward by the wind received by the wind-receiving plate 85. The interlocking member 84 is also moved upward by the urging force of the elastic member 83 shown in Figure 7. The force with which the elastic member 83 urges the interlocking member 84 upward is constant. Therefore, whether the interlocking member 84 moves upward or downward depends on the magnitude of the wind force of the air received by the wind-receiving plate 85. This will be described in more detail below.

[0081] As shown in FIGS. 7 and 8, the case 81 has a case body 101, a cover 102, four guide pins 103, and an engagement mechanism 104.

[0082] Case body 101 has a bottom plate 111 and four side walls 112, 113, 114, and 115. Side wall 112 faces side wall 114. Side wall 113 faces side wall 115. That is, case body 101 is in the shape of a rectangular box having an upper opening 116 and an internal space 117.

[0083] Case body 101 has a shielding plate 118 bridging the upper end of side wall 112 and the upper end of side wall 114. Shielding plate 118 is spaced apart from side wall 113 and side wall 114. Shielding plate 118 is located closer to side wall 114 than to side wall 113. Shielding plate 118 divides upper opening 116 into a large opening 119 and an air inlet 121, which is a small opening.

[0084] The large opening 119 is defined by the side walls 112, 113, and 114 and the shielding plate 118. The air inlet 121 is defined by the side walls 112, 114, and 115 and the shielding plate 118.

[0085] In this embodiment, a direction that is horizontal and perpendicular to the main surface of the shielding plate 118 is referred to as a first direction 8. A direction that is horizontal and parallel to the main surface of the shielding plate 118 is referred to as a second direction 9.

[0086] Lid 102 is placed on the upper ends of side walls 112, 113, 114 and shielding plate 118. Lid 102 closes large opening 119. Lid 102 is removed from case body 101 when refilling or replacing the aromatic substance.

[0087] Air inlet 121 is part of upper opening 116 and opens to the top of case body 101. Air inlet 121 communicates with internal space 117 of case 81. Air that has passed through air supply port member 71 flows into internal space 117 from air inlet 121.

[0088] The lower end of the shaft 86 of the interlocking member 84 is inserted into the air inlet 121. That is, the air inlet 121 is an opening through which air flows in and into which the shaft 86 is inserted.

[0089] The shielding plate 118 is spaced apart from the bottom plate 111. Air that flows into the internal space 117 from the air inlet 121 passes under the shielding plate 118 and flows toward the side wall 113. The side wall 113 has an air outlet 122. The air outlet 122 penetrates the side wall 113 in the first direction 8. In other words, the air outlet 122 is connected to the internal space 117. The air that flows into the internal space 117 from the air inlet 121 flows out to the outside from the air outlet 122.

[0090] The case body 101 has four bosses 123. The bosses 123 protrude upward from the bottom plate 111 of the case body 101. The four bosses 123 are located at the four corners of the bottom plate 111. The bosses 123 have insertion holes (not shown) recessed from the top surface.

[0091] The lower ends of the guide pins 103 are fitted into fitting holes of the bosses 123. That is, the four guide pins 103 protrude upward from the four corners of the bottom plate 111 and are fixed to the bottom plate 111. The four guide pins 103 support a movable partition member 82 (described later) so that the movable partition member 82 can move up and down.

[0092] The engagement mechanism 104 has a function of engaging the case 81 with the cover member 74. The engagement mechanism 104 has an engagement protrusion 124, an extension piece 125, an elastic piece 126, an engagement claw 127, and gripping pieces 128 and 129.

[0093] The engagement projection 124 projects outward from the lower end of the outer surface of the side wall 113 .

[0094] The extension piece 125 protrudes outward from the lower end of the outer surface of the side wall 115. The elastic piece 126 protrudes upward from the tip of the extension piece 125. The engagement claw 127 protrudes from the tip of the elastic piece 126 toward the side wall 105.

[0095] On the other hand, the cover member 74 has an engaging protrusion 131 that engages with the engaging protrusion 124 and an engaging protrusion 132 that engages with the engaging claw 127 .

[0096] Tab 128 protrudes downward from the tip of extension piece 125. On the other hand, tab 129 protrudes downward from bottom plate 111. Tab 129 faces tab 128 in first direction 8. A user pinches tabs 128, 129 with, for example, their index finger and thumb to elastically deform extension piece 125 and elastic piece 126. As a result, engagement between engagement claw 127 and engagement protrusion 132 is released. While pinching tabs 128, 129, the user moves case 81 downward to pull case 81 out of through-hole 77 of cover member 74. After refilling or replacing the aromatic substance in case 81, the user pushes case 81 from below into through-hole 77 of cover member 74. When case 81 is pushed into through-hole 77, extension piece 125 and elastic piece 126 are elastically deformed. Due to the elastic deformation of extension piece 125 and elastic piece 126, engagement protrusion 124 engages with engagement protrusion 131, and engagement claw 127 engages with engagement protrusion 132. In other words, case 81 is attached to cover member 74. Case 81 is attached to and detached from cover member 74 by a so-called snap fit.

[0097] When the case 81 is removed from the cover member 74, the interlocking member 84 loses support and moves downward under its own weight. The interlocking member 84 is supported by the guide member 91 when the air receiving plate 85 abuts against the ring 94 of the guide member 91. When the interlocking member 84 is supported by the guide member 91, the lower end of the shaft 86 of the interlocking member 84 protrudes downward from the through-hole 77 of the cover member 74. The user can see the lower end of the shaft 86 protruding from the through-hole 77. The user inserts the visible lower end of the shaft 86 into the air inlet 121 of the case 81 that the user is holding, and pushes the case 81 into the through-hole 77 from below.

[0098] The through-hole 77 of the cover member 74 into which the case 81 is fitted is located at the center of the cover member 74. In other words, the case 81 is located directly below the air inlet member 71. In other words, the case 81 is located in the flow path of air flowing downward inside the air inlet member 71.

[0099] The partition movable member 82 is housed in the internal space 117 of the case 81. The partition movable member 82 is a member that divides the internal space 117 of the case 81.

[0100] The movable partition member 82 has a lower box 133 , a middle box 134 , and an upper box 135 .

[0101] Lower box 133 has a bottom plate 141 and four side walls 142, 143, 144, and 145. Side wall 142 and side wall 144 face each other in second direction 9. Side wall 143 and side wall 145 face each other in first direction 8. That is, lower box 133 is a rectangular box having an upper opening 148 and an internal space 149. Internal space 149 of lower box 133 stores a second type of aromatic agent 99. Internal space 149 of lower box 133 is an example of a second chamber. Note that the aromatic agents 98 and 99 are not shown in FIG. 8.

[0102] The distance between the outer surfaces of the side walls 142, 144 in the second direction 9 is slightly shorter than the distance between the inner surfaces of the side walls 112, 114 in the second direction 9. Moreover, the distance between the outer surfaces of the side walls 143, 145 in the first direction 8 is sufficiently shorter than the distance between the inner surfaces of the side walls 113, 115 in the first direction 8. Moreover, the length of the side walls 142, 143, 144, 145 in the vertical direction is sufficiently shorter than the length of the side walls 112, 113, 114, 115 in the vertical direction. Therefore, the lower box 133 can be stored in the case body 101 with the outer surfaces of the side walls 142, 144 in close proximity to the inner surfaces of the side walls 112, 114 of the case body 101.

[0103] The lower box 133 has extension plates 146 and 147. The extension plate 146 protrudes outward from the lower end of the outer surface of the side wall 143. The extension plate 147 protrudes outward from the lower end of the outer surface of the side wall 145. The extension plate 147 is located below the shielding plate 118.

[0104] The extension plate 146 has two insertion holes 151. The extension plate 147 also has two insertion holes 151. The insertion holes 151 are located at the tip ends of the extension plates 146 and 147, and at both ends in the second direction 9. That is, the four insertion holes 151 are located at the four corners of the lower box 133.

[0105] The insertion holes 151 pass through the extension plates 146, 147 in the vertical direction. The above-mentioned guide pins 103 are inserted into the insertion holes 151. The lower box 133 is supported by the four guide pins 103 inserted into the four insertion holes 151 so as to be movable in the vertical direction.

[0106] The extension plate 147 is located directly below the air inlet 121. The lower end of the shaft 86 of the interlocking member 84 mentioned above abuts against the upper surface of the extension plate 147. When the interlocking member 84 is pressed downward by wind pressure, the extension plate 147 is pressed downward by the interlocking member 84. That is, the case 81 moves downward in conjunction with the interlocking member 84. When the wind pressure received by the wind-receiving plate 85 of the interlocking member 84 weakens, the case 81 and the interlocking member 84 move upward due to the biasing force of the elastic member 83 described below.

[0107] The lower end of the shaft 86 of the interlocking member 84 and the extension plate 147 are merely in contact with each other and are not fixed to each other. In other words, the interlocking member 84 and the case 81 can be moved toward and away from each other. Therefore, the case 81 can be separated from the interlocking member 84 and removed from the cover member 74.

[0108] The distance between the tips of the extension plates 146, 147 in the first direction 8 is slightly shorter than the distance between the inner surfaces of the side walls 113, 115 in the first direction 8. That is, the tip of the extension plate 146 is close to the side wall 113 of the case body 101, and the tip of the extension plate 147 is close to the side wall 115 of the case body 101. The distance between the side ends of the extension plates 146, 147 in the second direction 9 is slightly shorter than the distance between the inner surfaces of the side walls 112, 114 in the second direction 9. That is, the side ends of the extension plates 146, 147 are close to the side walls 112, 114. The extension plates 146, 147 close to the side walls 112, 113, 114, 115 prevent air from flowing below the lower box 133.

[0109] Side wall 143 has a plurality of air vents 152. Air vents 152 penetrate side wall 143 in first direction 8. Side wall 145 has a plurality of air vents 153. Air vents 153 penetrate side wall 145 in first direction 8. Air that flows into internal space 117 of case 81 from air inlet 121 flows into internal space 149 of lower box 133 through air vents 153. The air that flows into internal space 149 is scented with the second type of aromatic agent 99, and then flows out of case 81 through air vents 152 and air outlet 122.

[0110] The intermediate box 134 has a bottom plate 161 and four side walls 162, 163, 164, and 165. The side walls 162 and 164 face each other in the second direction 9. The side walls 163 and 165 face each other in the first direction 8. That is, the intermediate box 134 is a rectangular box having an internal space 166 and an upper opening 167.

[0111] The distance between the outer surfaces of the side walls 162, 164 in the second direction 9 is equal to the distance between the outer surfaces of the side walls 142, 144 of the lower box 133 in the second direction 9. Furthermore, the distance between the outer surfaces of the side walls 163, 165 in the first direction 8 is equal to the distance between the outer surfaces of the side walls 163, 165 of the lower box 133 in the first direction 8. The middle box 134 is placed on the lower box 133 with the lower surface of the bottom plate 161 abutting against the upper ends of the side walls 142, 143, 144, 145 of the lower box 133. In other words, the bottom plate 161 of the middle box 134 closes the upper opening 148 of the lower box 133.

[0112] The internal space 149 of the lower box 133 is defined by the bottom plate 141, four side walls 142, 143, 144, and 145 of the lower box 133, and the bottom plate 161 of the intermediate box 134. The internal space 149 of the lower box 133 is not completely sealed, but is open via a plurality of ventilation holes 152 and a plurality of ventilation holes 153.

[0113] The vertical length of the side walls 162, 163, 164, and 165 is sufficiently shorter than the vertical length of the side walls 112, 113, 114, and 115 of the case body 101. Therefore, the intermediate box 134 can be stored in the case body 101 with the outer surfaces of the side walls 162 and 164 in close proximity to the side walls 112 and 114 of the case body 101.

[0114] The intermediate box 134 is located between the side wall 113 of the case body 101 and the shielding plate 118 in the first direction 8. The intermediate box 134 has an extension plate 168 that closes the gap between the intermediate box 134 and the side wall 113. The extension plate 168 protrudes outward from the lower end of the outer surface of the side wall 163. The distance between the tip of the extension plate 168 and the outer surface of the side wall 165 is slightly shorter than the distance between the inner surface of the side wall 113 of the case body 101 and the shielding plate 118. In other words, the tip of the extension plate 168 is close to the side wall 113, and the side wall 165 is close to the shielding plate 118. Furthermore, the distance between the side ends of the extension plate 168 in the second direction 9 is slightly shorter than the distance between the inner surfaces of the side walls 112, 114 of the case body 101. That is, the side ends of the extension plate 168 are close to the side walls 112, 114 of the case body 101. The extension plate 168 prevents air from passing between the intermediate box 134 and the side walls 112, 113, 114 of the case body 101.

[0115] The extension plate 168 has two notches 169 to avoid contact with the guide pin 103. When the partition movable member 82 is in the second position shown in Fig. 9(A), the notches 169 are located directly above the guide pin 103. When the partition movable member 82 is in the third position shown in Fig. 9(B) or the first position shown in Fig. 9(C), the guide pin 103 fits into the notches 169.

[0116] The fragrance is not stored in the interior space 166 of the middle box 134. Therefore, unlike the bottom box 133, the side walls 163, 165 of the middle box 134 do not have any ventilation holes.

[0117] Upper box 135 has a bottom plate 171 and four side walls 172, 173, 174, and 175. Side wall 172 and side wall 174 face each other in second direction 9. Side wall 173 and side wall 175 face each other in first direction 8. In other words, upper box 135 is a rectangular box having internal space 176 and an upper opening 177. A first type of fragrance 98 is stored in internal space 176. First type of fragrance 98 is a fragrance that emits a different type of fragrance from second type of fragrance 99. Internal space 176 of upper box 135 is an example of a first chamber.

[0118] The distance between the outer surfaces of the side walls 172, 174 in the first direction 8 is equal to the distance between the outer surfaces of the side walls 162, 164 of the intermediate box 134 in the second direction 9. Furthermore, the distance between the outer surfaces of the side walls 173, 175 in the first direction 8 is equal to the distance between the outer surfaces of the side walls 163, 165 of the intermediate box 134 in the first direction 8. The upper box 135 is placed on the intermediate box 134 with the lower surface of the bottom plate 171 abutting against the upper ends of the side walls 162, 163, 164, 165 of the intermediate box 134. In other words, the bottom plate 171 of the upper box 135 closes the upper opening 167 of the intermediate box 134. The internal space 166 of the intermediate box 134 is completely sealed by the upper box 135.

[0119] The vertical length of the side walls 172, 173, 174, and 175 is sufficiently shorter than the vertical length of the side walls 112, 113, 114, and 115 of the case body 101. Therefore, the upper box 135 can be stored in the case body 101 with the side walls 172 and 174 in close proximity to the side walls 112 and 114 of the case body 101.

[0120] Side wall 173 has a plurality of air vents 154. Air vents 154 penetrate side wall 173 in first direction 8. Side wall 175 has a plurality of air vents 155. Air vents 155 penetrate side wall 175 in first direction 8. Air that flows into internal space 117 of case 81 from air inlet 121 flows into internal space 176 of upper box 135 through air vents 155. The air that flows into internal space 176 is scented with the first type of aromatic agent 98, and then flows out of case 81 through air vents 154 and air outlet 122.

[0121] The upper box 135 is located between the side wall 113 of the case body 101 and the shielding plate 118 in the first direction 8. The upper box 135 has an extension plate 178 that closes the gap between the upper box 135 and the side wall 113. The extension plate 178 protrudes outward from the lower end of the outer surface of the side wall 173. The distance between the tip of the extension plate 178 and the outer surface of the side wall 175 in the first direction 8 is slightly shorter than the distance between the inner surface of the side wall 113 and the shielding plate 118 in the first direction 8. In other words, the tip of the extension plate 178 is close to the side wall 113, and the side wall 115 is close to the shielding plate 118. The extension plate 178 prevents air from passing between the upper box 135 and the side wall 113 of the case body 101.

[0122] The extension plate 178 has two notches 179 to avoid contact with the guide pin 103. When the partition movable member 82 is in the first position shown in Fig. 9(C) or the third position shown in Fig. 9(B), the notches 179 are located directly above the guide pin 103. When the partition movable member 82 is in the second position shown in Fig. 9(A), the guide pin 103 fits into the notches 179.

[0123] The movable partition member 82 divides the internal space 117 of the case 81 into an internal space 149 of the lower box 133 and an internal space 176 of the upper box 135. The movable partition member 82 is supported by a guide pin 103 so as to be movable in the vertical direction. In other words, the movable partition member 82 divides the internal space 117 of the case 81 into a plurality of spaces and is a movable member.

[0124] The partition movable member 82 is supported by four guide pins 103 so as to be movable in the vertical direction. The partition movable member 82 moves in the vertical direction between a second position shown in Fig. 9(A), a third position shown in Fig. 9(B), and a first position shown in Fig. 9(C). The second position is the upper limit position, the first position is the lower limit position, and the third position is a position between the second position and the first position.

[0125] The elastic member 83 is a coil spring. However, the elastic member 83 may be another type of elastic member having elasticity, such as a torsion coil spring, a leaf spring, or rubber. The lower end of the elastic member 83 abuts against the bottom plate 111 of the case body 101. The upper end of the elastic member 83 abuts against the bottom plate 141 of the lower box 133 of the partition movable member 82. The elastic member 83 is disposed in a state compressed from its natural length. The elastic member 83 biases the partition movable member 82 upward from the first position to the second position, with the bottom plate 111 of the case body 101 as a fulcrum.

[0126] The first position shown in Figure 9(C) is the position of the partition movable member 82 when the ventilation volume is set to "strong" as described above. The second position shown in Figure 9(A) is the position of the partition movable member 82 when the ventilation volume is set to "weak" as described above. The third position shown in Figure 9(B) is the position of the partition movable member 82 when the ventilation volume is set to "normal" as described above. Details will be described later.

[0127] 9(C), internal space 176 of upper box 135 communicates with air inlet 121 through vent hole 155. Internal space 176 also communicates with air outlet 122 through vent hole 154 and upper opening 177. That is, air that flows into internal space 117 of case 81 from air inlet 121 flows into internal space 176 of upper box 135 through vent hole 155. After being impregnated with the first type of fragrance in internal space 176, the air passes through vent hole 154 and flows out from air outlet 122 to the outside. That is, when the ventilation rate is set to "strong" and movable partition member 82 is in the first position, air impregnated with the first type of fragrance is supplied to room 12.

[0128] 9(A), internal space 149 of lower box 133 communicates with air inlet 121 through air vent 153. Internal space 149 also communicates with air outlet 122 through air vent 152. That is, air that flows into internal space 117 of case 81 from air inlet 121 flows into internal space 149 of lower box 133 through air vent 153. After being impregnated with the second type of fragrance in internal space 149, the air passes through air vent 152 and flows out to the outside from air outlet 122. That is, when the ventilation rate is set to "weak" and partition movable member 82 is in the second position, air impregnated with the second type of fragrance is supplied to room 12.

[0129] 9(B), the tip of the extension plate 168 of the middle box 134 is close to a lower portion of the side wall 113 of the case body 101 that is located below the air outlet 122. On the other hand, in the third position, the tip of the extension plate 178 of the upper box 135 is close to an upper portion of the side wall 113 of the case body 101 that is located above the air outlet 122. The air outlet 122 is surrounded by the two extension plates 168, 178 and the side wall 163 of the middle box 134. Therefore, when the ventilation rate is "normal" and the partition movable member 82 is in the third position, air does not flow out of the case 81. In other words, the third position is a position where neither the internal space 149 of the lower box 133 nor the internal space 176 of the upper box 135 communicates with the air outlet 122.

[0130] [Operation of residential ventilation system 10] When the user selects the operation button 64, the controller 50 of the residential ventilation system 10 starts normal ventilation at the basic wind speed. Specifically, the controller 50 drives the ventilation device 33 and the blower fans 41, 42, 43, and 44 using a first control value group pre-stored in the memory 52. ​​During normal ventilation, air at the first wind speed, which is the basic wind speed, flows through the air supply duct 36. The air flows from the air supply duct 36 into the air supply port member 71.

[0131] The wind receiving plate 85 of the interlocking member 84 receives the air of the first wind force that has flowed into the air intake port member 71. The interlocking member 84 receives the air and moves the partition movable member 82 downward against the upward biasing force of the elastic member 83. After passing through the wind receiving plate 85, the air flows into the room 12 through the gap between the ceiling mounting member 72 and the cover member 74.

[0132] 9(B) in conjunction with the movement of the interlocking member 84. When the partition movable member 82 is in the third position, the intermediate box 134 is at the same height as the air outlet 122. In the third position, the air outlet 122 is surrounded by the extension plates 168, 178 and the side wall 163. Therefore, air cannot flow through the case 81. In other words, when the ventilation volume is set to "normal," fragranced air is not supplied to the room 12.

[0133] The user changes the ventilation volume setting from "normal" to "strong" via operation panel 60. Based on the change in ventilation volume setting to "strong," controller 50 drives ventilation device 33 and blower fans 41, 42, 43, and 44 using the second set of control values. As a result, air at a second wind speed that is stronger than the wind speed of the basic setting flows through air supply duct 36. This air flows from air supply duct 36 into air supply port member 71.

[0134] The wind receiving plate 85 of the interlocking member 84 receives the air of the second wind force that has flowed into the air intake port member 71. The interlocking member 84 receives the air and moves the partition movable member 82 downward against the upward biasing force of the elastic member 83. After passing through the wind receiving plate 85, part of the air flows into the case 81 through the air inlet 121. The other air flows into the room 12 through the gap between the ceiling mounting member 72 and the cover member 74.

[0135] In response to the movement of the interlocking member 84, the partition movable member 82 moves from the third position shown in FIG. 9(B) to the first position shown in FIG. 9(C). When the partition movable member 82 is in the first position, the upper box 135 is at the same height as the air outlet 122. In the first position, air flowing into the case 81 through the air inlet 121 flows into the internal space 176 of the upper box 135 through the air vent 155. The air flowing into the internal space 176 is imparted with the first type of fragrance by the first type of aromatic agent 98. The air containing the first type of fragrance flows out of the case 81 through the air vent 154 and the air outlet 122. The air flowing out joins with the other air described above and flows into the room 12 through the gap between the ceiling mounting member 72 and the cover member 74. In other words, when the ventilation volume is set to "high," air containing the first type of fragrance is supplied to the room 12.

[0136] The user changes the ventilation volume setting from "normal" or "strong" to "weak" via operation panel 60. Based on the change in ventilation volume setting to "weak," controller 50 drives ventilation device 33 and blower fans 41, 42, 43, and 44 using a third control value group. As a result, air at a third wind speed, which is weaker than the wind speed of the basic setting, flows through air supply duct 36. This air flows from air supply duct 36 into air supply port member 71.

[0137] When the wind force received by the wind receiving plate 85 of the interlocking member 84 becomes weaker than the first wind force or the second wind force, the partition movable member 82 moves upward together with the interlocking member 84 due to the elastic member 83. After passing through the wind receiving plate 85, part of the air flows into the case 81 through the air inlet 121. The other part of the air flows into the room 12 through the gap between the ceiling mounting member 72 and the cover member 74.

[0138] The partition movable member 82 is moved by the elastic member 83 from the first position shown in FIG. 9(C) or the third position shown in FIG. 9(B) to the second position shown in FIG. 9(A). When the partition movable member 82 is in the second position, the lower box 133 is at the same height as the air outlet 122. In the third position, air flowing into the case 81 through the air inlet 121 flows into the internal space 149 of the lower box 133 through the air vent 153. The air flowing into the internal space 149 is imparted with the second type of fragrance by the second type of aromatic agent 99. The air containing the second type of fragrance flows out of the case 81 through the air vent 152 and the air outlet 122. The air flowing out joins with the other air and flows into the room 12 through the gap between the ceiling mounting member 72 and the cover member 74. That is, when the ventilation volume is set to "weak," air containing the second type of fragrance is supplied to room 12.

[0139] When the user goes out, he or she presses the operation button 64 to turn off the power. When the power is turned off, the controller 50 stops the operation of the ventilation device 33 and the blower fans 41, 42, 43, and 44. When the operation of the ventilation device 33 and the blower fans 41, 42, 43, and 44 is stopped, the air flow in the air supply duct 36 stops. When the air flow stops, the air receiving plate 85 of the interlocking member 84 no longer receives the wind. As a result, the biasing force of the elastic member 83 moves the partition movable member 82 to the second position shown in FIG. 9(A). Even when the partition movable member 82 is in the second position, the air supply is stopped, so that fragrant air is not supplied to the room 12.

[0140] [Effects of the embodiment] When the user changes the ventilation volume setting from "normal" to "strong" or "weak," the system switches from ventilation with non-fragranced air to ventilation with fragranced air. Alternatively, when the ventilation volume setting is changed from "strong" or "weak" to "normal," the system switches from ventilation with fragranced air to ventilation with non-fragranced air. In other words, residential ventilation system 10 can switch whether or not to emit a fragrance by changing the setting via operation panel 60.

[0141] When the ventilation rate is set to "strong," air containing a first type of fragrance is supplied to room 12, and when the ventilation rate is set to "weak," air containing a second type of fragrance is supplied to room 12. In other words, residential ventilation system 10 can switch the type of fragrance to be emitted by changing the settings via operation panel 60.

[0142] Fragrance emitting device 80 moves movable partition member 82 by the force of the air flowing through air intake duct 36. In other words, fragrance emitting device 80 does not require a power source. Therefore, residential ventilation system 10 does not require electrical wiring work around air intake grille 70. As a result, construction of home 11 is easier.

[0143] When using a fragrance emitting device in which movable partition member 82 is moved manually, the user must use a platform to reach up to ceiling 14. In this embodiment, the user can change whether or not fragrance is emitted, or the type of fragrance, by operating operation panel 60. Therefore, residential ventilation system 10 is easier to use than a fragrance emitting device in which movable partition member 82 is moved manually.

[0144] When the home ventilation system 10 is turned on, it supplies air that does not contain fragrance when the ventilation volume is set to "normal," which is the initial setting. However, when the user changes the setting from "normal," the home ventilation system 10 supplies air that contains fragrance. In other words, the home ventilation system 10 ventilates with fragranced air only when the user intentionally operates the operation panel 60.

[0145] When case 81 is pulled downward through through-hole 77 of cover member 74, it separates from interlocking member 84. That is, the user can refill or replace the air freshener or perform maintenance on case 81 without removing cover member 74 from ceiling 14. As a result, residential ventilation system 10 is easy to use for the user.

[0146] The operation panel 60 associates the characters "No Fragrance," indicating no fragrance, with the characters "Normal," indicating the ventilation volume setting, and displays the characters "No Fragrance (Normal)." The operation panel 60 also associates the characters "First Fragrance," indicating a first type of fragrance, with the characters "Strong," indicating the ventilation volume setting, and displays the characters "First Fragrance (Strong)." The operation panel 60 also associates the characters "Second Fragrance," indicating a second type of fragrance, with the characters "Weak," indicating the ventilation volume setting, and displays the characters "Second Fragrance (Weak)." Therefore, the residential ventilation system 10 allows the user to easily understand the presence or absence of fragrance and the correspondence between the type of fragrance and the ventilation volume, and to make settings accordingly. As a result, the system is easy to use for the user.

[0147] [Variations] 3(D) may be used instead of operation panel 60. Operation panel 180 has operation knob 181 instead of touch panel 61. The words "No fragrance (normal)", "First fragrance (strong)", and "Second fragrance (weak)" are written directly on the surface of operation panel 180.

[0148] [Other variations] In the embodiment, an example has been described in which the residential ventilation system 10 has three ventilation volume settings: "normal," "weak," and "strong." However, the residential ventilation system 10 may have two ventilation volume settings: "normal" and "weak," or "normal" and "strong," or "weak" and "strong." In this case, the movable partition member 82 may have only the lower box 133 and the middle box 134, and not the upper box 135. Alternatively, the movable partition member 82 may have only the lower box 133 and the upper box 135, and not the middle box 134. When the movable partition member 82 has only the lower box 133 and the middle box 134, the residential ventilation system 10 can switch between ventilation with fragranced air and ventilation with unscented air. When the movable partition member 82 has only the lower box 133 and the upper box 135, the residential ventilation system 10 can switch between the type of fragrance. Furthermore, when movable partition member 82 has only lower box 133 and upper box 135, one of lower box 133 and upper box 135 may contain an aromatic substance, while the other may not. In this case, residential ventilation system 10 can switch between ventilation with fragranced air and ventilation with unscented air.

[0149] In the embodiment, an example has been described in which the internal space 166 of the middle box 134 is sealed, and the internal spaces 149, 176 of the lower box 133 and the upper box 135 are open. However, one of the internal space 149 of the lower box 133 and the internal space 176 of the upper box 135 may be closed, and the internal space 166 of the middle box 134 may be open. In that case, when the ventilation volume is set to either "weak" or "strong," unscented air is supplied to the room 12. Furthermore, when the ventilation volume is set to the other of "weak" or "strong," or when the ventilation volume is set to "normal," scented air is supplied to the room 12.

[0150] In the embodiment, an example has been described in which the ventilation volume can be set in three stages and the partition movable member 82 has three boxes: the lower box 133, the middle box 134, and the upper box 135. However, if the residential ventilation system 10 is capable of setting the ventilation volume in four or more stages, the partition movable member 82 may have four or more boxes.

[0151] In the embodiment, an example has been described in which the case 81 is fitted into the through-hole 77 of the cover member 74. However, the case 81 may be placed on the cover member 74. In that case, the user removes the case 81 together with the cover member 74 from the ceiling 14.

[0152] In the embodiment, an example has been described in which the partition movable member 82 is supported by the case body 101 so as to be movable in the vertical direction. However, the partition movable member 82 may be supported by the case body 101 so as to be movable in the horizontal direction or rotatable. In this case, the partition movable member 82 and the shaft 86 of the interlocking member 84 are connected via a cam mechanism. The cam mechanism transmits a force acting in the vertical direction of the interlocking member 84 to the partition movable member 82 instead of a force acting in the horizontal direction or a rotational force. In other words, as long as the partition movable member 82 can be moved by the air supplied by the air supply duct 36, the partition movable member 82 may be movable in any direction. In this case, the cam mechanism is part of the interlocking member 84.

[0153] In the embodiment, an example has been described in which the residential ventilation system 10 includes multiple blower fans 35, 41, 42, 43, and 44. However, as long as a sufficient amount of ventilation can be ensured, some or all of the blower fans 41, 42, 43, and 44 may be omitted. In other words, the residential ventilation system 10 only needs to include at least the blower fan 35.

[0154] In the embodiment, an example has been described in which the operation panel 60 includes the operation button 64. However, instead of the operation button 64, or together with the operation button 64, a human presence sensor that detects a resident in the house 11 may be installed. The controller 50 starts ventilation of the house 11 by the residential ventilation system 10 based on the detection of a resident by the human presence sensor. The controller 50 stops ventilation of the house 11 based on the detection of no resident by the human presence sensor.

[0155] In the embodiment, an example has been described in which the interlocking member 84 includes the wind-receiving plate 85. That is, an example has been described in which the portion of the interlocking member 84 that receives the wind is plate-shaped. However, the portion of the interlocking member 84 that receives the wind may have a shape other than a plate. For example, instead of the wind-receiving plate 85, the interlocking member 84 may be provided with a wind-receiving part that has another shape, such as a spherical shape or a conical shape.

[0156] In the embodiment, an example has been described in which interlocking member 84 is arranged inside air intake port member 71. However, interlocking member 84 may also be arranged inside air intake duct 36. Alternatively, interlocking member 84 may be arranged below air intake port member 71. In other words, interlocking member 84 may be arranged in the flow path of air supplied to room 12 by ventilation device 33. Case 81 may also be arranged inside air intake duct 36 or air intake port member 71, rather than directly below air intake port member 71.

[0157] [Appendix 1] A ventilation device installed in a house and having a function of taking in and sending out outside air; an air intake duct connecting the ventilation device to an air intake port on the ceiling of the room; an operation panel that accepts input operations from a user; a controller capable of controlling the force of the air supplied to the room from the air intake port in two or more stages based on an input value from the operation panel; and a fragrance generating device, The fragrance generating device is a case having an internal space, the case having an air inlet and an air outlet connected to the internal space, the air inlet being located in a flow path of air supplied by the ventilation device; a movable partition member that divides the internal space into a first chamber and a second chamber capable of storing an aromatic substance, and that is disposed in the internal space so as to be movable between a first position and a second position; an elastic member that biases the partition movable member from the first position toward the second position; a linking member that has an air receiving section that receives air supplied by the ventilation device, that abuts against the partition movable member, and that moves the partition movable member from the second position to the first position by the wind force of the air; the first position is a position where the first chamber communicates with the air outlet, The second position is a position where the second chamber is in communication with the air outlet.

[0158] [Appendix 2] the controller is capable of controlling the air force at the air intake port in three or more stages based on an input value from the operation panel; the partition movable member is movable to the first position, the second position, and a third position; the third position is a position in which neither the first chamber nor the second chamber communicates with the air outlet, A residential ventilation system as described in Appendix 1, wherein the interlocking member moves the partition movable member from the second position to the first position or the third position depending on the wind force of the air received by the wind receiving section.

[0159] [Appendix 3] the controller is capable of controlling the wind force at the air intake port to a first wind force which is a basic setting, a second wind force which is stronger than the first wind force, and a third wind force which is weaker than the first wind force, based on an input value from the operation panel; The interlocking member is The air of the first wind force is received by the wind receiving portion, and the partition movable member is moved to the third position; The air of the second wind force is received by the wind receiving portion, and the partition movable member is moved to the first position; The residential ventilation system of claim 2, wherein the air of the third wind force is received by the wind receiving section to move the partition movable member to the second position.

[0160] [Appendix 4] a cylindrical air inlet member that defines the air inlet; a guide member disposed within the air inlet member and supporting the interlocking member so as to be movable in the up-down direction; a cover member having a through hole into which the fragrance emitting device is fitted and disposed below the air inlet, the partition movable member divides the internal space into upper and lower parts, and is supported by the case so as to be movable in the up-down direction; The elastic member biases the partition movable member upward with the case as a fulcrum, The air inlet opens at the top of the case, A residential ventilation system as described in Appendix 1, wherein the lower end of the interlocking member is inserted into the internal space of the case through the air inlet and abuts against the partition movable member from above.

[0161] [Appendix 5] The residential ventilation system of claim 1, wherein the operation panel displays information about the fragrance in association with wind power.

[0162] [Appendix 6] a case having an internal space, the case having an air inlet and an air outlet connected to the internal space, the air inlet being located in a flow path of air supplied from an air supply port in a room; a movable partition member that divides the internal space into a first chamber and a second chamber capable of storing an aromatic substance, and that is disposed in the internal space so as to be movable between a first position and a second position; an elastic member that biases the partition movable member from the first position toward the second position; an interlocking member that has an air receiving section that receives air supplied to the air supply port, and that abuts against the partition movable member and moves the partition movable member from the second position to the first position by the wind force of the air; the first position is a position where the first chamber communicates with the air outlet, The second position is a position where the second chamber communicates with the air outlet. [Explanation of symbols]

[0163] 10. Residential ventilation system 11. Housing Rooms 12 and 13 14. Ceiling 15...Air supply port 31. Outside air inlet duct 32 Exhaust duct 33. Ventilation equipment 35···Blower fan 36...Air supply duct 37 Exhaust duct 41, 42, 43, 44... Blower fan 50... Controller 60, 180... Operation panel 61 Touch panel 70···Air intake grill 71 Air intake member 74 Cover member 77 Through hole 80... Aroma generator 81···Case 82 Movable partition member 83 Elastic member 84... Interlocking member 85...Blow plate 86···shaft 91, 92: Guide members 94 Ring 98···First type of air freshener 99...Second type of air freshener 117...Interior Space 118...shielding plate 121 Air inlet 122 Air outlet 133...lower box 134···Intermediate box 135...upper box 149...Interior space 152, 153, 154, 155... Ventilation holes 176...Interior space 181···Operation knob

Claims

1. A ventilation device installed in a house and having a function of taking in and sending out outside air; an air intake duct connecting the ventilation device to an air intake port on the ceiling of the room; an operation panel that accepts input operations from a user; a controller capable of controlling the force of the air supplied to the room from the air supply port in two or more stages based on an input value from the operation panel; and a fragrance generating device, The fragrance generating device is a case having an internal space, the case having an air inlet and an air outlet connected to the internal space, the air inlet being located in a flow path of air supplied by the ventilation device; a movable partition member that divides the internal space into a first chamber and a second chamber capable of storing an aromatic substance, and that is disposed in the internal space so as to be movable between a first position and a second position; an elastic member that biases the partition movable member from the first position toward the second position; a linking member that has an air receiving section that receives air supplied by the ventilation device, and that abuts against the partition movable member and moves the partition movable member from the second position to the first position by the wind force of the air, the first position is a position where the first chamber is in communication with the air outlet, The second position is a position where the second chamber is in communication with the air outlet.

2. the controller is capable of controlling the wind force at the air inlet in three or more stages based on an input value from the operation panel; the partition movable member is movable to the first position, the second position, and a third position; the third position is a position in which neither the first chamber nor the second chamber is in communication with the air outlet, 2. The residential ventilation system according to claim 1, wherein the interlocking member moves the movable partition member from the second position to the first position or the third position depending on the wind force of the air received by the wind receiving portion.

3. the controller is capable of controlling the wind force at the air supply port to a first wind force which is a basic setting, a second wind force which is stronger than the first wind force, and a third wind force which is weaker than the first wind force, based on an input value from the operation panel; The interlocking member is the air of the first wind force is received by the wind receiving portion, and the partition movable member is moved to the third position; The air of the second wind force is received by the wind receiving portion, and the partition movable member is moved to the first position; 3. The residential ventilation system according to claim 2, wherein the movable partition member is moved to the second position when the air of the third wind force is received by the wind receiving portion.

4. a cylindrical air inlet member that defines the air inlet; a guide member disposed within the air inlet member and supporting the interlocking member so as to be movable in the up-down direction; a cover member having a through hole into which the fragrance emitting device is fitted and disposed below the air inlet, the partition movable member divides the internal space into upper and lower parts, and is supported by the case so as to be movable in the up-down direction; The elastic member biases the partition movable member upward with the case as a fulcrum, The air inlet opens at the top of the case, 2. The residential ventilation system according to claim 1, wherein a lower end of the interlocking member is inserted into the internal space of the case through the air inlet and abuts against the movable partition member from above.

5. The residential ventilation system according to claim 1 , wherein the operation panel displays information about the fragrance in association with wind power.

6. a case having an internal space, the case having an air inlet and an air outlet connected to the internal space, the air inlet being located in a flow path of air supplied from an air supply port in a room; a movable partition member that divides the internal space into a first chamber and a second chamber capable of storing an aromatic substance, and that is disposed in the internal space so as to be movable between a first position and a second position; an elastic member that biases the partition movable member from the first position toward the second position; an interlocking member that has an air receiving section that receives air supplied to the air supply port, and that abuts against the partition movable member and moves the partition movable member from the second position to the first position by the wind force of the air; the first position is a position where the first chamber is in communication with the air outlet, The second position is a position where the second chamber communicates with the air outlet.

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