Ventilation device and air conditioning system

Abstract

To improve the appearance of a ventilation device viewed from within a second space such as a living room.SOLUTION: A ventilation device is provided in a wall that separates a first space and a second space in a building. The ventilation device includes: a main body having an inlet provided on the first-space side of the wall, an outlet provided on the second-space side of the wall, and a blower fan that causes air drawn from the first space through the inlet to be sent to the second space through the outlet; an intake louver member covering the inlet; and a blowout louver member covering the outlet. When the main body is arranged inside the wall, a first area of the intake louver member surrounded by an outer periphery of the intake louver member as seen from a direction orthogonal to a first wall surface on the first-space side of the wall is greater than a second area of the blowout louver member surrounded by an outer periphery of the blowout louver member as seen from a direction orthogonal to a second wall surface on the second-space side of the wall.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present invention relates to a ventilation device and an air conditioning system.

Background Art

[0002] In a building, for example, a ventilation device is known that is provided on a wall partitioning a first space such as a corridor and a second space such as a living room, and sends the air sucked from the first space to the second space. This type of ventilation device can perform air conditioning in the second space using the air-conditioned air in the first space.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The above-described ventilation device includes a blowing louver member that covers the blowout port. For example, there is a problem that the aesthetic appearance when viewed from the interior of the living room is impaired because the area occupied by the blowing louver member with respect to the wall surface of the living room is large.

[0005] The disclosed technology has been made in view of the above, and an object thereof is to provide a ventilation device and an air conditioning system capable of improving the aesthetic appearance when viewed from the inside of the second space.

Means for Solving the Problems

[0006] One aspect of the ventilation device disclosed in the present application is a wall partitioning a first space and a second space in a building above provided on sending air from the first space to be air-conditioned by the air conditioner to the second spaceA ventilation device, comprising: a main body having a suction port provided on the first space side of a wall, a blowout port provided on the second space side of the wall, and a blower fan that sends air sucked from the first space through the suction port to the second space through the blowout port; a suction louver member that covers the suction port; and a blowout louver member that covers the blowout port. The suction louver member and the blow-out louver member are arranged adjacent to the upper end of the main body portion When viewed from a direction orthogonal to the first wall surface on the first space side of the wall with the main body disposed inside the wall, a second area, which is the area of the blowout louver member surrounded by the outer periphery of the blowout louver member, is smaller than a first area, which is the area of the suction louver member surrounded by the outer periphery of the suction louver member.

Advantages of the Invention

[0007] According to one aspect of the ventilation device disclosed in the present application, it is possible to improve the aesthetics when viewed from within the second space.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

MODE FOR CARRYING OUT THE INVENTION

[0009] Hereinafter, embodiments of the ventilation device and the air conditioning system disclosed in the present application will be described in detail with reference to the drawings. Note that the ventilation device and the air conditioning system disclosed in the present application are not limited by the following embodiments.

EXAMPLE

[0010] (Air conditioning system) FIG. 1 is a schematic diagram showing the air conditioning system of the embodiment. As shown in FIG. 1, the air conditioning system 1 of the embodiment is applied to a building 5 having a first space S1 such as a corridor and a second space S2 such as a living room. The air conditioning system 1 includes an air conditioner 2 that air - conditions the first space S1, and a ventilation device 3 that sends the air air - conditioned by the air conditioner 2 in the first space S1 to the second space S2.

[0011] In the air conditioning system 1 of the embodiment, the air conditioner 2 is provided on a wall 8 that partitions the outdoor area of the building 5 and the first indoor space S1. The ventilation device 3 is provided on a wall 7 that separates the first space S1 and the second space S2 in the building 5, and is disposed, for example, above a door 15 provided on the wall 7.

[0012] In the embodiment, as an example, the ventilation device 3 is used to blow air from a corridor or a large room as the first space S1 into a living room as the second space S2, but the first space S1 and the second space S2 are not limited. The ventilation device 3 may be used, for example, when blowing air from a living room to a living room, from a corridor to a corridor, or from a living room to a corridor. The air conditioner 2 may be provided anywhere within the first space S1. Further, the ventilation device 3 may be applied in a situation where the air conditioner 2 provided in the first space S1 is not used, or when the air conditioner 2 is not provided in the first space S1.

[0013] (Ventilation device) FIG. 2 is an external view showing the ventilation device 3 of the embodiment from the first space S1 side (corridor side). FIG. 3 is an external view showing the ventilation device 3 of the embodiment from the second space S2 side (living room side). FIG. 4 is a cross-sectional view schematically showing the state in which the ventilation device 3 of the embodiment is provided on the wall 7. FIG. 5 is a longitudinal sectional view schematically showing the state in which the ventilation device 3 of the embodiment is provided on the wall 7.

[0014] As shown in FIGS. 2, 3, 4, and 5, the building 5 in which the ventilation device 3 of the embodiment is provided includes an upper beam member 11 (so-called purlin) spanned between two intermediate columns 12, two intermediate columns 12, a plurality of board members 13 forming the wall 7, a door frame member 14 provided on the wall 7 between the two intermediate columns 12, a door 15, and a lower beam member 16 (so-called purlin) spanned between the two intermediate columns 12. The board members 13 are provided so as to sandwich and cover the intermediate columns 12, the door frame member 14, the upper beam member 11, and the lower beam member 16 between the board members 13, and form a first wall surface W1 on the first space S1 side of the wall 7 and a second wall surface W2 on the second space S2 side of the wall 7. The board members 13 are formed of, for example, gypsum boards and interior materials such as wallpaper attached to the gypsum boards.

[0015] The ventilation device 3 of the embodiment is placed and attached on the upper side of the lower beam member 16 provided on the wall 7 partitioning the first space S1 and the second space S2 in the building 5. In the vertical direction of the wall 7, the upper beam member 11 and the lower beam member 16 are provided between the upper frame portion of the door frame member 14 and the ceiling 18 as shown in FIG. 5. In the drawings, in the ventilation device 3 attached to the wall 7, the left-right direction (width direction) is indicated as X, the depth direction (thickness direction of the wall 7) is indicated as Y, and the height direction is indicated as Z. The vertical direction (Z direction) and the left-right direction (X direction) in the present embodiment refer to each direction in the state where the ventilation device 3 is attached to the wall 7 as shown in FIGS. 2 and 3.

[0016] As shown in FIGS. 2, 3, 4, and 5, the ventilation device 3 includes a suction port 21 provided on the first space S1 side of the wall 7, a blowout port 22 provided on the second space S2 side of the wall 7, a blower fan 23 that sends the air sucked from the first space S1 through the suction port 21 to the second space S2 through the blowout port 22, and a motor 24 that rotates the blower fan 23, and includes a main body portion 20. The ventilation device 3 also includes a suction louver member 26 that covers the suction port 21 and a blowout louver member 27 that covers the blowout port 22.

[0017] The main body 20 has a substantially box-shaped support structure 25 that supports the blower fan 23 and the motor 24 (see FIGS. 7, 8, 9, and 10). The suction port 21 is formed on the side of the first space S1 in the support structure 25 (see FIGS. 7 and 9). The blowout port 22 is formed on the side of the second space S2 in the support structure 25 (see FIGS. 8 and 10).

[0018] As shown in FIG. 5, the suction port 21 is formed along the axial direction (X direction) along the rotation axis (not shown) of the blower fan 23 at the lower end portion 20L of the main body 20 in the Z direction (see FIG. 7). The opening area of the suction port 21 is formed to be approximately the size corresponding to the lower half portion of the first area A1 (see FIG. 11) of the suction louver member 26 described later. A vent hole 7a communicating with the suction port 21 of the main body 20 is formed in the board member 13 that forms the first wall surface W1 on the side of the first space S1 of the wall 7. The suction louver member 26 is disposed at a position covering the suction port 21 and is fixed to the main body 20 by screwing. At that time, the suction louver member 26 is fixed to the main body 20 so as to also cover the periphery of the vent hole 7a of the board member 13 that forms the first wall surface W1 as shown in FIG. 2. By fixing the suction louver member 26 to the main body 20 in this way, the suction louver member 26 can be easily and surely fixed to the first wall surface W1 without being affected by variations in the internal dimensions in the X direction or Z direction of the wall 7 compared to the case of fixing the suction louver member 26 to the board member 13.

[0019] As shown in Fig. 5, the air outlet 22 is formed along the axial direction (X direction) of the blower fan 23 at the upper end portion 20U of the main body 20 in the Z direction, and is close to the ceiling 18 in the second space S2 (see Fig. 8). The air outlet 22 is formed in a shape along the outer edge of the blowing louver member 27, and the opening area of the air outlet 22 is formed to be approximately the same size as the second area A2 (see Fig. 11) of the blowing louver member 27 described later. A vent 7b communicating with the air outlet 22 of the main body 20 is formed in the board member 13 forming the second wall surface W2 on the second space S2 side of the wall 7. The blowing louver member 27 is disposed at a position covering the air outlet 22 and is fixed to the main body 20 by screwing through the vent 7b of the wall 7. At this time, as shown in Fig. 3, the blowing louver member 27 is fixed to the main body 20 so as to also cover the periphery of the vent 7b of the board member 13 forming the second wall surface W2. By fixing the blowing louver member 27 to the main body 20 through the vent 7b in this way, the blowing louver member 27 can be easily and surely fixed to the second wall surface W2 without being affected by variations in the internal dimensions of the wall 7 and the like. In addition, variations in the mounting position such as the blowing louver member 27 tilting with respect to the door 15 on the second wall surface W2 are suppressed, so the aesthetics in the second space S2 can be further enhanced.

[0020] Also, as shown in Fig. 3, in a state where the main body 20 is disposed inside the wall 7, a part of the main body 20 below the air outlet 22 formed along the upper end portion 20U of the main body 20 is covered by the board member 13 forming the second wall surface W2 (see Fig. 8). As a result, the side surface of the main body 20 on the second space S2 side excluding the air outlet 22 is hidden inside the wall 7 by the board member 13, so only the blowing louver member 27 is disposed on the second wall surface W2. For this reason, when the second wall surface W2 and the ventilation device 3 are viewed from the second space S2 side, there are fewer visible parts in the ventilation device 3, so the aesthetics can be further enhanced.

[0021] In addition, the support structure 25 of the main body 20 is provided with a fan cover member 31 that covers the blower fan 23 so as to form a part of the flow path 29 connecting the suction port 21 and the blowout port 22 (see FIGS. 12 and 14). The fan cover member 31 is provided along the upper peripheral surface of the blower fan 23.

[0022] Further, in the main body 20, the lower part of the flow path 29 connecting the suction port 21 and the blowout port 22 is formed by the upper end surface 16U of the lower beam member 16 which is a part of the wall 7, and the lower part of the suction port 21 in the support structure 25 is open (see FIGS. 9 and 14). For this reason, an opening 32 is formed in the lower part of the main body 20, and when the main body 20 is placed on the lower beam member 16, the opening 32 is blocked by the lower beam member 16, so that a part of the flow path 29 is formed by the upper end surface 16U of the lower beam member 16. By providing the opening 32 in the support structure 25 in this way, the material for forming the bottom surface portion of the support structure 25 is made unnecessary, the manufacturing cost of the support structure 25 is reduced, and the weight of the main body 20 is reduced, thereby improving the workability when attaching the main body 20.

[0023] As shown in FIGS. 4 and 5, the main body 20 is disposed inside the wall 7 while being sandwiched between the board members 13 forming the wall 7. The blower fan 23 is a cross-flow fan (peripheral fan), and as shown in FIG. 5, it is disposed at the upper part inside the support structure 25 of the main body 20 facing the blowout port 22. In the main body 20, the suction port 21 is disposed below the blower fan 23. Therefore, the air in the first space S1 sucked from the suction port 21 located in the lower part of the main body 20 can be sent upward from the bottom in the main body 20 by the blower fan 23 and blown out into the second space S2 from the blowout port 22 located in the upper part of the main body 20. By sending the air upward from the bottom in the main body 20 in this way, the flow of the wind can be directly utilized in the blowing direction, so that the blowing property of the air sent toward the ceiling 18 by the blade 27a of the blowout louver member 27 described later can be enhanced.

[0024] As shown in FIG. 4, the motor 24 is disposed at one end of the main body 20 in the axial direction (X direction) of the blower fan 23. A control circuit unit 34 for controlling the motor 24 is provided in the vicinity of the motor 24 in the main body 20, and a power cable 35 and a connection cable 36 to a remote controller (not shown) are connected to the control circuit unit 34 (see FIGS. 9 and 12). The wiring states of the respective cables 35 and 36 will be described later. Note that when the remote controller is a wireless type, the connection cable 36 is not used.

[0025] FIG. 6 is a longitudinal sectional view showing the suction louver member 26 and the blow-out louver member 27 of the ventilation device 3 of the embodiment. FIG. 7 is an exploded perspective view showing the suction louver member 26 of the ventilation device 3 of the embodiment from the first space S1 side. As shown in FIGS. 6 and 7, the suction louver member 26 has a plurality of vanes 26a arranged along the axial direction (X direction) of the blower fan 23, and a frame portion 26b that covers the first wall surface W1 of the board member 13. In a state where the suction louver member 26 is fixed to the main body 20, each vane 26a is inclined with respect to the vertical direction so that air passing through the suction louver member 26 from the first space S1 flows from above the main body 20 toward the suction port 21 below the main body 20 (see FIGS. 6 and 9).

[0026] As shown in FIG. 6, the upper end 26d on the first space S1 side of each vane 26a extends so as to protrude toward the first space S1 side more than the frame portion 26b in the direction (Y direction) orthogonal to the first wall surface W1. Further, the lower end 26e on the main body 20 side of each vane 26a extends so as to protrude toward the main body 20 side more than the frame portion 26b in the direction (Y direction) orthogonal to the first wall surface W1.

[0027] In this way, each louver 26a is inclined with respect to the vertical direction, and each louver 26a extends from the frame portion 26b toward the first space S1 side and the main body portion 20 side. As a result, when the suction louver member 26 is viewed from the first space S1 side, the range in which the inside of the wall 7 is blocked by each louver 26a increases, so the function of hiding the inside of the wall 7 (the main body portion 20, etc.) is enhanced, and the number of louvers 26a of the suction louver member 26 can be reduced. Therefore, the ventilation resistance is suppressed, and the aesthetic appearance when the ventilation device 3 is viewed from the first space S1 side is enhanced.

[0028] FIG. 8 is an exploded perspective view showing the blowing louver member 27 of the ventilation device 3 of the embodiment from the second space S2 side. As shown in FIGS. 6 and 8, the blowing louver member 27 includes louvers 27a arranged along the axial direction (X direction) of the blower fan 23, and a frame portion 27b that covers the second wall surface W2 of the board member 13. When the blowing louver member 27 is fixed to the main body portion 20, the louvers 27a are inclined with respect to the vertical direction (Z direction) so that the air sent from the blowing port 22 is blown upward from the main body portion 20 (see FIGS. 6 and 10). As a result, the air that has passed through the blowing louver member 27 is blown toward the ceiling 18 of the second space S2, and the Coanda effect in which the air flows along the ceiling 18 is appropriately ensured.

[0029] As shown in FIG. 6, the upper end 27d of the louver 27a on the second space S2 side extends so as to protrude toward the second space S2 side from the frame portion 27b in the direction (Y direction) orthogonal to the second wall surface W2. Further, the lower end 27e of the louver 27a on the main body portion 20 side extends so as to protrude toward the main body portion 20 side from the frame portion 27b in the direction (Y direction) orthogonal to the second wall surface W2.

[0030] Thus, the louver 27a is inclined with respect to the vertical direction and extends from the frame portion 27b toward the second space S2 side and the main body portion 20 side. As a result, when the blowing louver member 27 is viewed from the second space S2 side, the range in which the inside of the wall 7 is blocked by the louver 27a increases, so that the function of hiding the inside of the wall 7 (such as the main body portion 20) is enhanced, and the aesthetics when the ventilation device 3 is viewed from the second space S2 side is enhanced. Further, since the louver 27a extends from the frame portion 27b toward the second space S2 side and the main body portion 20 side, the function of changing the direction of the air blown out through the blowing louver member 27 by the louver 27a is enhanced. That is, the blowing louver member 27 combines the function of hiding and the function of changing the air direction by the louver 27a.

[0031] In addition, since the blowing outlet 22 and the blowing louver member 27 arranged along the upper end portion 20U of the main body portion 20 are close to the ceiling 18 in the second space S2, the Coanda effect in which the air passing through the blowing louver member 27 flows along the ceiling 18 is easily obtained. For this reason, the ventilation device 3 can widely spread the air conditioned in the first space S1 and sent from the ventilation device 3 into the second space S2 by the Coanda effect of flowing along the ceiling 18. As a result, the ventilation device 3 can appropriately air-condition the second space S2 using the air-conditioned air in the first space S1.

[0032] FIG. 9 is an exploded perspective view showing the ventilation device 3 of the embodiment from the first space S1 side. FIG. 10 is an exploded perspective view showing the ventilation device 3 of the embodiment from the second space S2 side. Further, as shown in FIGS. 9 and 10, the ventilation device 3 includes a suction guard member 41 disposed between the suction port 21 and the suction louver member 26, and a blowing guard member 42 disposed between the blowing outlet 22 and the blowing louver member 27.

[0033] The suction guard member 41 is formed in a lattice shape and has a plurality of slit-shaped ventilation holes 41a. Similarly, the blowing guard member 42 is formed in a lattice shape and has a plurality of slit-shaped ventilation holes 42a. The size of the suction guard member 41 is formed to be approximately the same as the opening area of the suction port 21, preventing the fingertips of the user, etc. from entering the main body 20 from the outside of the ventilation device 3 through the suction louver member 26. Similarly, the size of the blowing guard member 42 is formed to be approximately the same as that of the blowing port 22 and the blowing louver member 27, preventing the fingertips of the user, etc. from entering the main body 20 from the outside of the ventilation device 3 through the blowing louver member 27.

[0034] (Main part of the ventilation device) Next, the main part which is a feature of the ventilation device 3 of the embodiment will be described. The features of the ventilation device 3 include the size of the blowing louver member 27. FIG. 11 is a schematic diagram for explaining the main part of the ventilation device 3 of the embodiment, which is a diagram showing the blowing louver member 27, the suction louver member 26, and the main body 20 arranged conveniently according to the structure of the ventilation device 3 and comparing their respective sizes.

[0035] As shown in FIG. 11, for the ventilation device 3 of the embodiment, when viewed from the direction (Y direction) perpendicular to the first wall surface W1 on the first space S1 side of the wall 7 with the main body 20 arranged inside the wall 7, the area of the suction louver member 26 surrounded by the outer periphery 26c of the frame portion 26b of the suction louver member 26 is defined as the first area A1, and when viewed from the direction (Y direction) perpendicular to the second wall surface W2 on the second space S2 side of the wall 7, the area of the blowing louver member 27 surrounded by the outer periphery 27c of the blowing louver member 27 is defined as the second area A2. At this time, the second area A2 of the blowing louver member 27 is smaller than the first area A1 of the suction louver member 26. Thereby, the second area A2 occupied by the blowing louver member 27 on the second wall surface W2 can be suppressed to be small. For this reason, it is possible to suppress the appearance when viewing the second wall surface W2 and the ventilation device 3 from the second space S2 from being impaired by the blowing louver member 27, improve the appearance, and enhance the appearance of the entire second space S2 (for example, the entire living room).

[0036] In addition, in the embodiment, the second area A2 of the blowing louver member 27 is made smaller than half of the first area A1 of the suction louver member 26, enhancing the aesthetic appearance when viewing the ventilation device 3 and the second wall surface W2 from the second space S2 side.

[0037] In other words, in the present embodiment, when the body portion 20 is disposed inside the wall 7 and the area of the body portion 20 surrounded by the outer periphery 20c of the body portion 20 when viewed from the direction (Y direction) orthogonal to the second wall surface W2 is defined as the third area A3, the second area A2 of the blowing louver member 27 is smaller than half of the third area A3 of the body portion 20. This enhances the aesthetic appearance when viewing the ventilation device 3 and the second wall surface W2 from the second space S2 side.

[0038] Also, when viewed from the direction (Y direction) orthogonal to the second wall surface W2 of the wall 7, the opening area of the blowing outlet 22 is approximately the same as the second area A2 of the blowing louver member 27 and is made smaller than the opening area of the suction port 21 when viewed from the direction (Y direction) orthogonal to the first wall surface W1. Thereby, the wind speed of the air sent from the blowing outlet 22 is increased, and the wind speed of the air sent to the second space S2 through the blowing louver member 27 is increased.

[0039] When viewed from the direction (Y direction) orthogonal to the first wall surface W1, the body portion 20 is disposed so as to fit within the first area A1 of the suction louver member 26. In other words, the ventilation device 3 satisfies the relationship of (the first area A1 of the suction louver member 26) ≥ (the third area A3 of the body portion 20).

[0040] In the present embodiment, the first area A1 of the suction louver member 26 is made larger than the third area A3, and when the body portion 20 is disposed inside the wall 7 and viewed from the direction (Y direction) orthogonal to the first wall surface W1, the body portion 20 is disposed inside the first area A1. Thereby, by removing the suction louver member 26 from the wall 7, it becomes possible to easily remove the body portion 20 from the wall 7 along the direction (Y direction) orthogonal to the first wall surface W1 inside the first area A1.

[0041] Further, the first area A1 of the suction louver member 26 and the third area A3 of the main body 20 may be equal, and when viewed from the direction (Y direction) perpendicular to the first wall surface W1 with the main body 20 disposed inside the wall 7, the entire first area A1 and the entire third area A3 may be arranged to overlap and coincide. Similarly, even when the suction louver member 26 has such a first area A1, by removing the suction louver member 26 from the wall 7, it becomes possible to easily remove the main body 20 from the wall 7 within the first area A1.

[0042] Also, the board member 13 forming the first wall surface W1 is formed such that the opening area of the ventilation port 7a is approximately the same as the first area A1 of the suction louver member 26, and the main body 20 is detachable through the ventilation port 7a (see FIG. 14). Therefore, for example, when repairing or replacing the ventilation device 3 attached to the wall 7, by removing the suction louver member 26 from the ventilation port 7a of the wall 7, the main body 20 can be easily taken out from the inside of the wall 7 through the ventilation port 7a without damaging the wall 7. Thus, the problem that the main body 20 becomes difficult to remove from the wall 7 as the blowing louver member 27 is made smaller can be avoided.

[0043] As described above, the ventilation device 3 of the embodiment can achieve both improving the aesthetics from the second space S2 side by making the blowing louver member 27 smaller and ensuring the detachability of the ventilation device 3 with respect to the wall 7 by making the suction louver member 26 larger than the main body 20.

[0044] Also, the opening area of the ventilation port 7b on the second wall surface W2 is formed to be approximately the same as the second area A2 of the blowing louver member 27. As an example, the outer peripheral edge of the blowing louver member 27 is formed slightly larger than the opening edge of the ventilation port 7b, and the opening edge of the ventilation port 7b is covered by this outer peripheral edge so as not to be exposed to the outside. Thereby, the blowing louver member 27 can hide the gap generated at the opening edge of the ventilation port 7b and the end portion of the interior material drawn into and attached to the ventilation port 7b from being visible from the second space S2 side, further enhancing the aesthetics when viewing the second wall surface W2 from the second space S2 side.

[0045] Also, similar to the blowing louver member 27, the outer peripheral edge of the suction louver member 26 is formed slightly larger than the opening edge of the ventilation port 7a, and the opening edge of the ventilation port 7a is covered by this outer peripheral edge so as not to be exposed to the outside. Thereby, similar to the blowing louver member 27, the suction louver member 26 can hide the opening edge of the ventilation port 7a so that it cannot be seen from the outside, enhancing the aesthetic appearance when viewed from the first space S1 side.

[0046] (Air volume of the ventilation device) For the ventilation device 3 of this embodiment, when sending the air in the first space S1 (for example, a corridor or the like) to the second space S2 (for example, a living room or the like), it is desirable that the air volume per minute be in the range of 10% or more and 50% or less of the volume of the second space S2.

[0047] This air volume takes into account the case where the comfort of people in the room, which is the second space S2, is impaired by the air sent from the ventilation device 3. For example, when the air volume of the ventilation device 3 per unit time is large, people in the second space S2 are continuously exposed to a certain air flow, resulting in a problem of giving an uncomfortable feeling, so-called draft feeling.

[0048] Therefore, by setting the upper limit value of the air volume per minute of the ventilation device 3 to 50% or less of the volume of the second space S2, it is possible to suppress giving a draft feeling to people in the second space S2. Further, the ventilation device 3 appropriately performs air conditioning (temperature adjustment) in the second space S2 by using the air-conditioned air sent from the first space S1, with the lower limit value of the air volume per minute being 10% or more of the volume of the second space S2, and can set the temperature in the second space S2 to the target temperature.

[0049] Therefore, in order for the ventilation device 3 to obtain a ventilation volume of about 50% of the volume of the second space S2 described above and avoid an increase in the rotational speed of the blower fan 23, it is desirable that the width dimension A (see FIGS. 9 and 10) in the left-right direction (X direction) of the main body 20 related to the axial length of the blower fan 23 be formed to be 700 [mm] or more. In the embodiment, the width dimension A of the main body 20 is formed to be about 700 [mm] to about 730 [mm]. Even when the width dimension A of the main body 20 is smaller than about 700 [mm], a desired ventilation volume can be obtained by increasing the rotational speed of the blower fan 23, but this is not preferable because there is a problem that the noise increases as the rotational speed of the motor 24 increases. Further, in the main body 20 in the embodiment, by setting the width dimension A as described above, the depth dimension of the main body 20 in the Y direction is about 105 [mm] or less, and the height dimension of the main body 20 in the Z direction is set to be about 170 [mm] to about 250 [mm].

[0050] FIG. 12 is a perspective view for explaining the wiring state of the cables 35 and 36 of the ventilation device 3 of the embodiment. As shown in FIG. 12, a connection terminal group 34a to which a power cable 35 is connected and a connection terminal 34b to which a connection cable 36 is connected are arranged at the lower part of the main body 20 of the control circuit section 34 included in the main body 20. Thereby, when connecting the cables 35 and 36 drawn from the upper beam member 11 side to the control circuit section 34, the lengths of the cables 35 and 36 extending from the upper part to the lower part of the main body 20 are ensured, so the degree of freedom in handling the cables 35 and 36 is increased, and the wiring work can be easily performed. The connection cable 36 extended from the control circuit section 34 is extended on the upper beam member 11 and extended downward through the inside of the wall 7, and is connected to a remote controller (not shown) attached to the wall 7. Further, a wiring cover member 37 is attached to the main body 20 by screwing, and the cables 35 and 36 and the motor 24 are covered by the wiring cover member 37. In some drawings (FIG. 9 etc.), the illustration of the wiring cover member 37 is omitted.

[0051] (Bracket member) FIG. 13 is a perspective view showing a bracket member that supports the ventilation device of the embodiment. As shown in FIG. 13, the ventilation device 3 includes a pair of bracket members 43 that respectively support both ends in the left - right direction (X direction, that is, the axial direction of the blower fan 23) of the main body 20 in a state where the main body 20 is attached to the wall 7. The main body 20 is fixed to the bracket members 43 by screwing. Thereby, directly screwing the main body 20 to the wall 7 can be avoided, so that the detachability of the main body 20 with respect to the wall 7 can be enhanced.

[0052] The bracket member 43 has a pair of holding pieces 43a that respectively hold the upper end portion 20U and the lower end portion 20L of the main body 20, and a pair of support pieces 43b that respectively support the suction port 21 side and the blow - out port 22 side of the main body 20. The pair of support pieces 43b are provided so as to be in contact with the board member 13. The pair of bracket members 43 are formed in the same shape and the same dimensions, and can be used at any end in the left - right direction (X direction) of the main body 20. Thereby, the workability when handling the pair of bracket members 43 can be enhanced.

[0053] The interval between the pair of support pieces 43b is formed to be about the dimension between the board members 13 in the thickness direction of the wall 7. Each bracket member 43 is provided on both sides in the left - right direction (X direction) of the lower side beam member 16 with a predetermined interval that coincides with the width dimension A in the left - right direction (X direction) of the main body 20, and is fixed by screwing.

[0054] Further, at both ends of each holding piece 43a and both ends of each support piece 43b, which are the four corners of the outer peripheral portion of the bracket member 43, cutout portions 43c are respectively formed. For example, when the bracket member 43 has a corner without the formation of the cutout portion 43c, depending on the variation in the internal dimensions of the wall 7, it may be difficult to attach the bracket member 43, or the deviation in the attachment position may increase. In this embodiment, since the bracket member 43 has the cutout portions 43c, the variation in each dimension inside the wall 7 suppresses the variation in the positions of the holding piece 43a and the support piece 43b, and the accuracy of the dimension between the bracket members 43 corresponding to the width dimension A in the left - right direction (X - direction) of the main body portion 20 can be appropriately ensured. Therefore, the workability when attaching the main body portion 20 between a pair of bracket members 43 can be improved.

[0055] (Mounting method of the ventilation device) A mounting method for mounting the ventilation device 3 configured as described above on the wall 7 will be described. FIG. 14 is a perspective view showing a state where the ventilation device 3 of the embodiment is mounted on the wall 7. As shown in FIG. 14, a pair of bracket members 43 are fixed by screwing at a predetermined position above the lower beam member 16. Next, the main body portion 20 to which the suction guard member 41 and the blowing guard member 42 are attached is inserted into the inside of the wall 7 through the ventilation port 7a of the wall 7 from the side of the first space S1, and is attached to each bracket member 43 and fixed by screwing. Note that the main body portion 20 is positioned and attached with respect to the left - right direction (X - direction) of the lower beam member 16 with the center position in the left - right direction (X - direction) as a reference. Thereby, the main body portion 20 can be easily arranged without being offset with respect to the left - right direction (X - direction) of the lower beam member 16 regardless of the internal dimensions of the wall 7 for each building.

[0056] Subsequently, as shown in FIGS. 6 and 7, the suction louver member 26 is attached to the ventilation port 7a of the wall 7 and fixed to the main body portion 20 by screwing. Thus, as shown in FIG. 2, the suction port 21 is covered by the suction louver member 26. For this reason, the suction louver member 26 is fixed to the main body portion 20 so as to cover the periphery of the ventilation port 7a of the board member 13 forming the first wall surface W1 as shown in FIGS. 4 and 5.

[0057] Similar to the suction louver member 26, as shown in FIGS. 6 and 8, the blowout louver member 27 is attached to the vent 7b of the wall 7 and fixed to the main body portion 20 by screwing. Thus, as shown in FIG. 3, the blowout port 22 is covered by the blowout louver member 27. For this reason, as shown in FIGS. 4 and 5, the blowout louver member 27 is fixed to the main body portion 20 so as to cover the periphery of the vent 7b of the board member 13 that forms the second wall surface W2.

[0058] Therefore, as shown in FIG. 2, on the second space S2 side, only the blowout louver member 27, which is smaller than the suction louver member 26 and the main body portion 20 in terms of size, is arranged on the second wall surface W2, and the appearance of the entire second space S2 (for example, the entire living room) can be improved.

[0059] (Effect of the Embodiment) As described above, the ventilation device 3 of the embodiment includes a main body portion 20 having a blower fan 23 that blows the air sucked from the first space S1 through the suction port 21 into the second space S2 through the blowout port 22, a suction louver member 26 that covers the suction port 21, and a blowout louver member 27 that covers the blowout port 22. When the ventilation device 3 is viewed from the direction (Y direction) orthogonal to the first wall surface W1 on the first space S1 side of the wall 7 with the main body portion 20 arranged inside the wall 7, the second area A2 surrounded by the outer periphery 27c of the blowout louver member 27 is smaller than the first area A1 surrounded by the outer periphery 26c of the frame portion 26b of the suction louver member 26. Thereby, the second area A2 occupied by the blowout louver member 27 on the second wall surface W2 can be suppressed to be small. For this reason, it is possible to suppress the appearance when viewing the second wall surface W2 and the ventilation device 3 from inside the second space S2 from being impaired by the blowout louver member 27 and improve the appearance. Therefore, according to the ventilation device 3, the appearance of the entire second space S2 (for example, the entire living room) can be enhanced.

[0060] Further, in the ventilation device 3 of the embodiment, when viewed from the direction (Y direction) orthogonal to the first wall surface W1, the main body 20 is arranged to fit within the first area A1. As a result, by removing the suction louver member 26 from the wall 7, the main body 20 can be easily removed along the direction (Y direction) orthogonal to the first wall surface W1 from the wall 7. For this reason, it is possible to avoid the problem that the main body 20 becomes difficult to remove from the wall 7 as the blowing louver member 27 is made smaller. For example, when performing repairs or replacements of the ventilation device 3 attached to the wall 7, etc., by removing the suction louver member 26 from the ventilation opening 7a of the wall 7, the main body 20 can be easily removed from the inside of the wall 7 through the ventilation opening 7a without damaging the wall 7. Therefore, the ventilation device 3 can achieve both improving the aesthetics from the second space S2 side by making the blowing louver member 27 smaller and ensuring the detachability of the ventilation device 3 with respect to the wall 7 by making the suction louver member 26 larger than the main body 20.

[0061] Also, in the ventilation device 3 of the embodiment, the second area A2 of the blowing louver member 27 is smaller than half of the first area A1 of the suction louver member 26. Thereby, the aesthetics when viewing the ventilation device 3 and the second wall surface W2 from the second space S2 side can be enhanced.

[0062] Also, in the ventilation device 3 of the embodiment, the second area A2 of the blowing louver member 27 is smaller than half of the third area A3 of the main body 20 when viewed from the direction (Y direction) orthogonal to the second wall surface W2. Thereby, the aesthetics when viewing the ventilation device 3 and the second wall surface W2 from the second space S2 side can be enhanced.

[0063] Further, in the ventilation device 3 of the embodiment, the air outlet 22 is formed along the upper end portion 20U of the main body portion 20. As a result, since the air outlet 22 and the air outlet louver member 27 can be brought closer to the ceiling 18 in the second space S2, the Coanda effect in which the air passing through the air outlet louver member 27 flows along the ceiling 18 can be easily obtained. Therefore, the ventilation device 3 can widely spread the air that has been air-conditioned in the first space S1 and sent from the ventilation device 3 into the second space S2 by the Coanda effect of flowing along the ceiling 18. As a result, the ventilation device 3 can appropriately air-condition the second space S2 by using the air-conditioned air in the first space S1.

[0064] Further, in the ventilation device 3 of the embodiment, with the main body portion 20 disposed inside the wall 7, the lower portion of the air outlet 22 in the main body portion 20 is covered by the board member 13 that forms the second wall surface W2. As a result, since the side surface of the main body portion 20 on the second space S2 side except for the air outlet 22 is hidden inside the wall 7 by the board member 13, only the air outlet louver member 27 is disposed on the second wall surface W2. Therefore, the aesthetics when viewing the second wall surface W2 and the ventilation device 3 from the second space S2 side can be further suppressed from being impaired by the air outlet louver member 27, and the aesthetics can be enhanced.

[0065] Further, in the ventilation device 3 of the embodiment, the suction port 21 is formed along the lower end portion 20L of the main body portion 20, and the blower fan 23 is a cross-flow fan disposed at the upper portion of the main body portion 20. As a result, the air in the first space S1 sucked from the suction port 21 located in the lower portion of the main body portion 20 can be sent from the lower side to the upper side in the main body portion 20 by the blower fan 23 and blown out from the air outlet 22 located in the upper portion of the main body portion 20 into the second space S2. By sending the air upward from the bottom in the main body portion 20 in this way, the air blowing property of the air passing through the air outlet louver member 27 and sent toward the ceiling 18 is enhanced. As a result, the Coanda effect in which the air sent from the ventilation device 3 flows along the ceiling 18 can be appropriately obtained.

[0066] Further, in the ventilation device 3 of the embodiment, with the main body 20 disposed inside the wall 7, the blowing louver member 27 is fixed to the main body 20 so as to cover the periphery of the ventilation port 7b of the board member 13 forming the second wall surface W2. As a result, compared with the case where the suction louver member 26 is fixed to the board member 13, the suction louver member 26 can be easily and surely fixed to the first wall surface W1 without being affected by variations in the internal dimensions of the wall 7 and the like. In addition, since variations in the attachment position of the blowing louver member 27 on the second wall surface W2 are suppressed, the aesthetics in the second space S2 can be further enhanced.

[0067] Further, in the ventilation device 3 of the embodiment, the lower part of the suction port 21 of the main body 20 is open such that the flow path 29 connecting the suction port 21 and the blowing port 22 is formed by the lower beam member 16 as a part of the wall 7. Thereby, a part of the flow path 29 can be formed by the opening 32 of the main body 20 being blocked by a part of the wall 7. For this reason, the material for forming the main body 20 can be reduced, the manufacturing cost of the main body 20 can be reduced, and the workability during the attachment of the main body 20 can be enhanced by reducing the weight of the main body 20.

[0068] Further, the ventilation device 3 of the embodiment includes bracket members 43 that support both ends in the left - right direction (X - direction) of the main body 20 and are disposed on the wall 7, and the main body 20 is fixed to the bracket members 43. As a result, directly screwing the main body 20 to the wall 7 can be avoided, so that the detachability of the main body 20 with respect to the wall 7 can be enhanced.

[0069] (Modification example of the suction louver member) FIG. 15 is a perspective view showing a suction louver member as a modification example in the embodiment. As shown in FIG. 15, the suction louver member 46 of the modification example has a louver part 47 that covers the suction port 21 of the main body 20 and a cover part 48 that covers the portion of the main body 20 other than the suction port 21 along the first wall surface W1.

[0070] The louver part 47 is formed only at a position facing the suction port 21 and has a plurality of vanes 47a arranged along the axial direction (X direction) of the blower fan 23. Each vane 47a of the louver part 47 is inclined with respect to the vertical direction such that, in a state where the suction louver member 46 is fixed to the main body part 20, the air passing through the louver part 47 from the first space S1 flows from above the main body part 20 toward the suction port 21 below the main body part 20. Similar to the vane 26a of the suction louver member 26 in the above-described embodiment, each vane 47a is inclined with respect to the vertical direction and is formed to extend on the first space S1 side and the main body part 20 side with respect to the frame part 47b of the louver part 47. Thereby, the function of hiding the inside of the wall 7 (such as the main body part 20) is enhanced, and the number of vanes 47a of the louver part 47 can be reduced. The cover part 48 is formed in a flat plate shape that covers the upper part of the suction port 21, which is a part of the main body part 20 other than the suction port 21.

[0071] Further, similar to the suction louver member 26 described above, the suction louver member 46 is formed such that when viewed from the direction (Y direction) orthogonal to the first wall surface W1 on the first space S1 side of the wall 7, the main body part 20 is arranged so as to fit within the first area A1 of the suction louver member 46. Thereby, even when the ventilation device 3 includes the suction louver member 46, the attachability and detachability of the main body part 20 with respect to the wall 7 can be ensured.

[0072] According to the suction louver member 46 of the modification, compared with the suction louver member 26, by reducing the part having the vanes 47a (louver part 47) and having the cover part 48, the mechanical strength of the suction louver member 46 can be enhanced.

Explanation of Reference Numerals

[0073] 1 Air conditioning system 2 Air conditioner 3 Ventilation device 5 Building 7 Wall 13 Board member 16 Lower beam member 20 Main body part 20L Lower end part Upper end of 20U 21 Suction port 22 Blow-out port 23 Blower fan 26 Suction louver member 27 Blow-out louver member 29 Flow path 32 Opening 41 Suction guard member 42 Blow-out guard member 43 Bracket member 46 Suction louver member 47 Louver part 48 Cover part A1 First area A2 Second area A3 Third area S1 First space S2 Second space W1 First wall surface W2 Second wall surface

Claims

1. A ventilation device provided above a wall that separates a first space and a second space in a building, the ventilation device sending air from the first space that is conditioned by an air conditioning device to the second space, a main body having an intake port provided on the first space side of the wall, an outlet port provided on the second space side of the wall, and a blower fan that sends air sucked from the first space through the intake port to the second space through the outlet port; An intake louver member for covering the intake port; A blow-out louver member that covers the blow-out port, The suction louver member and the blow-out louver member are disposed adjacent to each other at an upper end of the main body portion, A ventilation device in which, when the main body is positioned inside the wall, a second area, which is the area of ​​the outlet louver member surrounded by the outer periphery of the outlet louver member when viewed from a direction perpendicular to a second wall surface on the second space side of the wall, is smaller than a first area, which is the area of ​​the outlet louver member surrounded by the outer periphery of the outlet louver member when viewed from a direction perpendicular to a first wall surface on the first space side of the wall.

2. When viewed from a direction perpendicular to the first wall surface, the main body portion is disposed within the first area.

2. The ventilation device of claim 1.

3. The second area is less than half of the first area.

2. The ventilation device of claim 1.

4. The second area is smaller than half of a third area which is an area of ​​the main body surrounded by an outer periphery of the main body when viewed in a direction perpendicular to the second wall surface.

2. The ventilation device of claim 1.

5. The air outlet is formed along the upper end of the main body.

2. The ventilation device of claim 1.

6. When the main body is disposed inside the wall, a lower portion of the air outlet in the main body is covered by a board member forming the second wall surface.

6. A ventilation device according to claim 5.

7. The suction port is formed along a lower end of the body portion, The blower fan is a cross-flow fan disposed on an upper portion of the main body.

6. A ventilation device according to claim 5.

8. When the main body is disposed inside the wall, the air outlet louver member is fixed to the main body so as to cover a periphery of an air vent that is provided in a board member forming the second wall surface and communicates with the air outlet.

2. The ventilation device of claim 1.

9. The main body is open below the suction port such that a flow path connecting the suction port and the blowout port is formed by a part of the wall.

2. The ventilation device of claim 1.

10. bracket members that are disposed on the wall and support both ends of the main body in the left-right direction, The main body is fixed to the bracket member.

2. The ventilation device of claim 1.

11. The suction louver member has a louver portion that covers the suction port, and a cover portion that covers a portion of the main body other than the suction port along the first wall surface.

2. The ventilation device of claim 1.

12. A ventilation device according to any one of claims 1 to 11; An air conditioning system comprising: an air conditioning device that conditions the first space.

13. A ventilation device provided in a wall separating a first space and a second space in a building, a main body having an intake port provided on the first space side of the wall, an outlet port provided on the second space side of the wall, and a blower fan that sends air sucked from the first space through the intake port to the second space through the outlet port; An intake louver member for covering the intake port; A blow-out louver member that covers the blow-out port, When the main body portion is disposed inside the wall, a first area, which is the area of ​​the suction louver member surrounded by the outer periphery of the suction louver member when viewed from a direction perpendicular to a second wall surface of the wall on the second space side, is smaller than a second area, which is the area of ​​the suction louver member surrounded by the outer periphery of the suction louver member when viewed from a direction perpendicular to a second wall surface of the wall on the second space side, A ventilation device, wherein the main body portion is arranged to fit within the first area when viewed from a direction perpendicular to the first wall surface.

Images