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 technology]

[0002] In a building, for example, a ventilation device is known that is installed in a wall that separates a first space, such as a hallway, from a second space, such as a room, and that draws air from the first space and sends it to the second space. This type of ventilation device can condition the second space by using the conditioned air in the first space. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-205625 A Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned ventilation device is equipped with an outlet louver member that covers the air outlet, and there is a problem that, for example, the area occupied by the outlet louver member relative to the wall surface of a room may be large, which may spoil the aesthetic appearance of the ventilation device when viewed from inside the room.

[0005] The disclosed technology has been made in view of the above, and has an object to provide a ventilation device and an air conditioning system that can improve the aesthetic appearance as seen from within the second space. [Means for solving the problem]

[0006] One aspect of the ventilation device disclosed in the present application is a ventilation device installed in a wall separating a first space and a second space in a building, and comprises a main body having an intake port provided on the first space side of the wall, an exhaust port provided on the second space side of the wall, and a blower fan that sends air sucked in from the first space through the intake port to the second space through the exhaust port, an intake louver member covering the intake port, and an exhaust louver member covering the exhaust port, and when the main body is disposed inside the wall, a second area, which is the area of ​​the exhaust louver member surrounded by the outer periphery of the exhaust louver member when viewed from a direction perpendicular to the second wall surface on the second space side of the wall, is smaller than a first area, which is the area of ​​the intake louver member surrounded by the outer periphery of the intake louver member when viewed from a direction perpendicular to the first wall surface on the first space side of the wall. Effect of the Invention

[0007] According to one aspect of the ventilation device disclosed in the present application, the aesthetic appearance as seen from within the second space can be improved. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram showing an air conditioning system according to an embodiment. [Diagram 2] FIG. 2 is an external view showing the ventilation device of the embodiment from the first space side. [Diagram 3] FIG. 3 is an external view showing the ventilation device of the embodiment from the second space side. [Figure 4] FIG. 4 is a cross-sectional view showing a schematic view of the ventilation device of the embodiment installed on a wall. [Diagram 5] FIG. 5 is a vertical cross-sectional view showing a schematic state in which the ventilation device of the embodiment is installed on a wall. [Figure 6] FIG. 6 is a vertical cross-sectional view showing the intake louver member and the exhaust louver member of the ventilation device of the embodiment. [Figure 7] FIG. 7 is an exploded perspective view showing the suction louver member of the ventilation device of the embodiment from the first space side. [Figure 8] FIG. 8 is an exploded perspective view showing the outlet louver member of the ventilation device of the embodiment from the second space side. [Figure 9] FIG. 9 is an exploded perspective view showing the ventilation device of the embodiment from the first space side. [Figure 10] FIG. 10 is an exploded perspective view showing the ventilation device of the embodiment from the second space side. [Figure 11] FIG. 11 is a schematic diagram for explaining a main part of the ventilation device of the embodiment. [Figure 12] FIG. 12 is a perspective view for explaining the wiring state of each cable of the ventilation device of the embodiment. [Figure 13] FIG. 13 is a perspective view showing a bracket member for supporting the ventilation device of the embodiment. [Figure 14] FIG. 14 is a perspective view showing a state in which the ventilation device of the embodiment is attached to a wall. [Figure 15] FIG. 15 is a perspective view showing a modified example of the suction louver member in the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[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 to the following embodiments. EXAMPLES

[0010] (Air conditioning system) Fig. 1 is a schematic diagram showing an air conditioning system of an 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 room. The air conditioning system 1 includes an air conditioner 2 that conditions the first space S1, and a ventilator 3 that sends the 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 conditioning device 2 is provided on a wall 8 that separates the outdoor space from the indoor first space S1 of the building 5. The ventilation device 3 is provided on a wall 7 that separates the first space S1 from the second space S2 in the building 5, and is disposed above a door 15 provided on the wall 7, for example.

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

[0013] (Ventilation equipment) Fig. 2 is an external view of the ventilation device 3 of the embodiment, seen from the first space S1 side (corridor side). Fig. 3 is an external view of the ventilation device 3 of the embodiment, seen from the second space S2 side (room side). Fig. 4 is a cross-sectional view that typically shows the ventilation device 3 of the embodiment installed on a wall 7. Fig. 5 is a vertical-sectional view that typically shows the ventilation device 3 of the embodiment installed on a wall 7.

[0014] As shown in Figures 2, 3, 4 and 5, a building 5 in which the ventilation device 3 of the embodiment is provided includes an upper beam member 11 (so-called lintel) laid between two studs 12, two studs 12, a plurality of board members 13 forming a wall 7, a door frame member 14 provided on the wall 7 between the two studs 12, a door 15, and a lower beam member 16 (so-called lintel) laid between the two studs 12. The board members 13 are provided so as to sandwich and cover the studs 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, for example, of a plaster board and an interior material such as wallpaper attached to the plaster board.

[0015] The ventilation device 3 of the embodiment is mounted on a lower beam member 16 provided on a wall 7 that separates a first space S1 and a second space S2 in a building 5. In the vertical direction of the wall 7, the upper beam member 11 and the lower beam member 16 are provided between an upper frame part of the door frame member 14 and a ceiling 18, as shown in FIG. 5. In the drawings, the left-right direction (width direction) of the ventilation device 3 attached to the wall 7 is indicated as X, the depth direction (thickness direction of the wall 7) as Y, and the height direction as Z. The up-down direction (Z direction) and left-right direction (X direction) in this embodiment refer to the respective directions in a state in which the ventilation device 3 is attached to the wall 7, as shown in FIGS. 2 and 3.

[0016] 2, 3, 4, and 5, the ventilation device 3 includes a main body 20 having an intake port 21 provided on the first space S1 side of the wall 7, an outlet port 22 provided on the second space S2 side of the wall 7, a blower fan 23 that sends air sucked from the first space S1 through the intake port 21 to the second space S2 through the outlet port 22, and a motor 24 that rotates the blower fan 23. The ventilation device 3 also includes an intake louver member 26 that covers the intake port 21, and an outlet louver member 27 that covers the outlet 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 intake port 21 is formed on the first space S1 side of the support structure 25 (see Figs. 7 and 9). The outlet port 22 is formed on the second space S2 side of the support structure 25 (see Figs. 8 and 10).

[0018] As shown in FIG. 5, the suction port 21 is formed in the lower end 20L of the main body 20 in the Z direction along the axial direction (X direction) along the rotation axis (not shown) of the blower fan 23 (see FIG. 7). The opening area of ​​the suction port 21 is formed to be approximately equivalent to the lower half of a first area A1 (see FIG. 11) of the suction louver member 26, which will be described later. The board member 13 forming the first wall surface W1 on the first space S1 side of the wall 7 has a vent 7a formed therein, which communicates with the suction port 21 of the main body 20. The suction louver member 26 is disposed at a position where it covers the suction port 21, and is fixed to the main body 20 by screws. At this time, the suction louver member 26 is fixed to the main body 20 so as to cover the periphery of the vent 7a of the board member 13 forming the first wall surface W1, as shown in FIG. 2. By fixing the suction louver member 26 to the main body portion 20 in this manner, the suction louver member 26 can be easily and reliably fixed to the first wall surface W1 without being affected by variations in the internal dimensions of the wall 7 in the X or Z direction, compared to when the suction louver member 26 is fixed to the board member 13.

[0019] As shown in FIG. 5, the air outlet 22 is formed at the upper end 20U of the main body 20 in the Z direction along the axial direction (X direction) of the blower fan 23, and is close to the ceiling 18 in the second space S2 (see FIG. 8). The air outlet 22 is formed in a shape that follows the outer edge of the air outlet louver member 27, and the opening area of ​​the air outlet 22 is formed to be approximately the same size as a second area A2 (see FIG. 11) of the air outlet louver member 27 described later. The board member 13 that forms the second wall surface W2 of the wall 7 on the second space S2 side is formed with an air vent 7b that communicates with the air outlet 22 of the main body 20. The air outlet louver member 27 is arranged at a position that covers the air outlet 22, and is fixed to the main body 20 by screws through the air vent 7b of the wall 7. At this time, the outlet louver member 27 is fixed to the main body 20 so as to cover the periphery of the vent hole 7b of the board member 13 forming the second wall surface W2 as shown in Fig. 3. By fixing the outlet louver member 27 to the main body 20 through the vent hole 7b in this manner, the outlet louver member 27 can be easily and reliably fixed to the second wall surface W2 without being affected by variations in the internal dimensions of the wall 7. In addition, variations in the mounting position, such as the outlet louver member 27 being tilted relative to the door 15 on the second wall surface W2, are suppressed, further improving the aesthetic appearance of the second space S2.

[0020] 3, when 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 20U of the main body 20 is covered by the board member 13 forming the second wall 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, and only the air outlet louver member 27 is disposed on the second wall W2. Therefore, when the second wall W2 and the ventilation device 3 are viewed from the second space S2 side, only a small portion of the ventilation device 3 is visible, further improving the aesthetic appearance.

[0021] In addition, a fan cover member 31 that covers the blower fan 23 is provided on the support structure 25 of the main body 20 so as to form a part of the flow path 29 that connects the inlet 21 and the outlet 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, the main body 20 is opened below the suction port 21 in the support structure 25 so that the lower portion 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 (see Figs. 9 and 14). For this reason, an opening 32 is formed in the lower portion 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 not required, 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 sandwiched between the board members 13 that form the wall 7 and disposed inside the wall 7. The blower fan 23 is a cross-flow fan, and is disposed in the upper part of the inside of the support structure 25 of the main body 20, facing the blower port 22, as shown in Fig. 5. 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 in from the suction port 21 located at the lower part of the main body 20 can be sent from the bottom to the top in the main body 20 by the blower fan 23, and can be blown out from the blower port 22 located at the upper part of the main body 20 to the second space S2. By sending the air from the bottom to the top in the main body 20 in this way, the flow of the wind can be used as it is in the blowing direction, and the blowing performance of the air sent toward the ceiling 18 by the blades 27a of the blower louver member 27 described later can be improved.

[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 34 for controlling the motor 24 is provided near the motor 24 in the main body 20, and a power cable 35 and a connection cable 36 of a remote controller (not shown) are connected to the control circuit 34 (see Figs. 9 and 12). The wiring state of the cables 35, 36 will be described later. If the remote controller is a wireless type, the connection cable 36 is not used.

[0025] FIG. 6 is a vertical cross-sectional view showing the intake louver member 26 and the exhaust louver member 27 of the ventilation device 3 of the embodiment. FIG. 7 is an exploded perspective view showing the intake louver member 26 of the ventilation device 3 of the embodiment from the first space S1 side. As shown in FIG. 6 and FIG. 7, the intake louver member 26 has a plurality of blades 26a arranged along the axial direction (X direction) of the blower fan 23, and a frame portion 26b that is placed on the first wall surface W1 of the board member 13. When the intake louver member 26 is fixed to the main body portion 20, each blade 26a is inclined with respect to the up-down direction so that air passing through the intake louver member 26 from the first space S1 flows from the upper part of the main body portion 20 toward the intake port 21 below the main body portion 20 (see FIG. 6 and FIG. 9).

[0026] 6, an upper end 26d of each blade 26a on the first space S1 side extends in a direction perpendicular to the first wall surface W1 (Y direction) so as to protrude toward the first space S1 side beyond the frame portion 26b. Also, a lower end 26e of each blade 26a on the main body 20 side extends in a direction perpendicular to the first wall surface W1 (Y direction) so as to protrude toward the main body 20 side beyond the frame portion 26b.

[0027] In this way, each blade 26a is inclined in the vertical direction, and is formed to extend toward the first space S1 side and the main body 20 side with respect to the frame portion 26b. This increases the range of the inside of the wall 7 blocked by each blade 26a when the intake louver member 26 is viewed from the first space S1 side, improving the function of concealing the inside of the wall 7 (main body 20, etc.) and allowing the number of blades 26a of the intake louver member 26 to be reduced. This reduces ventilation resistance and improves the aesthetic appearance of the ventilation device 3 when viewed from the first space S1 side.

[0028] 8 is an exploded perspective view showing the blow-out 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 blow-out louver member 27 has a blade 27a arranged along the axial direction (X direction) of the blower fan 23 and a frame portion 27b that is placed on the second wall surface W2 of the board member 13. When the blow-out louver member 27 is fixed to the main body portion 20, the blade 27a is inclined with respect to the up-down direction (Z direction) so that the air sent from the air outlet 22 is blown out toward the upper side of the main body portion 20 (see FIGS. 6 and 10). As a result, the air that has passed through the blow-out louver member 27 is blown out toward the ceiling 18 of the second space S2, thereby properly ensuring the Coanda effect in which the air flows along the ceiling 18.

[0029] 6, an upper end 27d of the blade 27a on the second space S2 side extends in a direction perpendicular to the second wall surface W2 (Y direction) so as to protrude further toward the second space S2 than the frame portion 27b. Also, a lower end 27e of the blade 27a on the main body 20 side extends in a direction perpendicular to the second wall surface W2 (Y direction) so as to protrude further toward the main body 20 than the frame portion 27b.

[0030] In this way, the blades 27a are inclined in the vertical direction, and are formed to extend toward the second space S2 side and the main body 20 side with respect to the frame 27b. As a result, when the blow-out louver member 27 is viewed from the second space S2 side, the range of the inside of the wall 7 blocked by the blades 27a increases, so that the function of concealing the inside of the wall 7 (the main body 20, etc.) is improved, and the aesthetic appearance when the ventilation device 3 is viewed from the second space S2 side is improved. Furthermore, the blades 27a are formed to extend toward the second space S2 side and the main body 20 side with respect to the frame 27b, so that the function of changing the wind direction of the air blown out through the blow-out louver member 27 by the blades 27a is improved. In other words, the blow-out louver member 27 achieves both the function of concealing and the function of changing the wind direction by the blades 27a.

[0031] In addition, the air outlet 22 and the air outlet louver member 27 arranged along the upper end portion 20U of the main body 20 are located close to the ceiling 18 in the second space S2, so that the Coanda effect, in which the air that has passed through the air outlet louver member 27 flows along the ceiling 18, is easily obtained. Therefore, the ventilation device 3 can widely distribute the air conditioned in the first space S1 and sent from the ventilation device 3 throughout the second space S2 by the Coanda effect, in which the air flows along the ceiling 18. As a result, the ventilation device 3 can appropriately air-condition the second space S2 by using the 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. As shown in Figs. 9 and 10, the ventilation device 3 includes an inlet guard member 41 arranged between the inlet 21 and the inlet louver member 26, and an outlet guard member 42 arranged between the outlet 22 and the outlet 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 blow-out 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, and prevents the user's fingertips, etc. from entering the main body part 20 from the outside of the ventilation device 3 through the suction louver member 26. Similarly, the size of the blow-out guard member 42 is formed to be approximately the same as the blow-out port 22 and the blow-out louver member 27, and prevents the user's fingertips, etc. from entering the main body part 20 from the outside of the ventilation device 3 through the blow-out louver member 27.

[0034] (Main parts of the ventilation system) Next, the main parts that are characteristic of the ventilation device 3 of the embodiment will be described. The characteristics of the ventilation device 3 include the size of the outlet louver member 27. Fig. 11 is a schematic diagram for explaining the main parts of the ventilation device 3 of the embodiment, in which the outlet louver member 27, the inlet louver member 26, and the main body 20 are arranged for convenience in accordance with the structure of the ventilation device 3, and the sizes of each are compared.

[0035] 11, in the ventilation device 3 of the embodiment, when the main body 20 is disposed inside the wall 7, the area of ​​the intake louver member 26 surrounded by the outer periphery 26c of the frame portion 26b of the intake louver member 26 when viewed from a direction perpendicular to the first wall surface W1 on the first space S1 side of the wall 7 (Y direction) is defined as a first area A1, and the area of ​​the exhaust louver member 27 surrounded by the outer periphery 27c of the exhaust louver member 27 when viewed from a direction perpendicular to the second wall surface W2 on the second space S2 side of the wall 7 (Y direction) is defined as a second area A2. At this time, the second area A2 of the exhaust louver member 27 is smaller than the first area A1 of the intake louver member 26. This makes it possible to keep the second area A2 occupied by the exhaust louver member 27 on the second wall surface W2 small. As a result, the aesthetic appearance when viewing the second wall surface W2 and the ventilation device 3 from within the second space S2 is prevented from being marred by the outlet louver member 27, thereby improving the aesthetic appearance and enhancing the aesthetic appearance of the entire second space S2 (e.g., the entire living room).

[0036] In addition, in the embodiment, the second area A2 of the outlet louver member 27 is made smaller than half the first area A1 of the inlet louver member 26, thereby improving the aesthetic appearance when the ventilation device 3 and the second wall surface W2 are viewed from the second space S2 side.

[0037] In other words, in this embodiment, when the area of ​​the main body 20 surrounded by the outer periphery 20c of the main body 20 as viewed from a direction perpendicular to the second wall surface W2 (Y direction) with the main body 20 disposed inside the wall 7 is defined as a third area A3, the second area A2 of the outlet louver member 27 is smaller than half of the third area A3 of the main body 20. This improves the aesthetic appearance when the ventilation device 3 and the second wall surface W2 are viewed from the second space S2 side.

[0038] Furthermore, when viewed from a direction perpendicular to the second wall surface W2 of the wall 7 (Y direction), the opening area of ​​the outlet 22 is approximately equal to the second area A2 of the outlet louver member 27, and is smaller than the opening area of ​​the inlet 21 when viewed from a direction perpendicular to the first wall surface W1 (Y direction). This increases the wind speed of the air sent from the outlet 22, and increases the wind speed of the air sent to the second space S2 through the outlet louver member 27.

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

[0040] In this embodiment, the first area A1 of the suction louver member 26 is larger than the third area A3, and the main body 20 is disposed inside the first area A1 when viewed from a direction perpendicular to the first wall surface W1 (Y direction) with the main body 20 disposed inside the wall 7. This makes it possible to easily remove the main body 20 from the wall 7 along the direction perpendicular to the first wall surface W1 (Y direction) inside the first area A1 by removing the suction louver member 26 from the wall 7.

[0041] Furthermore, the first area A1 of the suction louver member 26 and the third area A3 of the main body portion 20 may be equal, and the main body portion 20 may be arranged such that the entire first area A1 and the entire third area A3 overlap and match when viewed from a direction (Y direction) perpendicular to the first wall surface W1 with the main body portion 20 arranged inside the wall 7. Similarly, 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 portion 20 from the wall 7 within the first area A1.

[0042] Furthermore, the board member 13 forming the first wall surface W1 is formed so that the opening area of ​​the vent 7a is approximately equal to the first area A1 of the suction louver member 26, and the main body 20 can be attached and detached through the vent 7a (see FIG. 14). Therefore, for example, when repairing or replacing the ventilation device 3 attached to the wall 7, the main body 20 can be easily removed from inside the wall 7 through the vent 7a by removing the suction louver member 26 from the vent 7a of the wall 7 without destroying the wall 7. This avoids the problem that it becomes difficult to remove the main body 20 from the wall 7 when the discharge louver member 27 is made smaller.

[0043] As described above, the ventilation device 3 of the embodiment can improve the aesthetic appearance from the second space S2 side by making the outlet louver member 27 smaller, and can ensure the ease of attachment and detachment of the ventilation device 3 to the wall 7 by making the intake louver member 26 larger than the main body portion 20.

[0044] The opening area of ​​the vent 7b on the second wall W2 is formed to be approximately the same as the second area A2 of the outlet louver member 27. As an example, the outer peripheral edge of the outlet louver member 27 is formed slightly larger than the opening edge of the vent 7b, and this outer peripheral edge covers the opening edge of the vent 7b so that it is not exposed to the outside. This allows the outlet louver member 27 to hide gaps that occur at the opening edge of the vent 7b and the ends of the interior material that are drawn into and attached to the vent 7b so that they are not visible from the second space S2 side, further improving the aesthetic appearance when the second wall W2 is viewed from the second space S2 side.

[0045] Similarly to the blow-out louver member 27, the outer peripheral edge of the intake louver member 26 is also formed slightly larger than the opening edge of the ventilation opening 7a, and this outer peripheral edge covers the opening edge of the ventilation opening 7a so that it is not exposed to the outside. As a result, similar to the blow-out louver member 27, the intake louver member 26 can hide the opening edge of the ventilation opening 7a so that it is not visible from the outside, improving the aesthetic appearance when viewed from the first space S1 side.

[0046] (Airflow rate of the ventilation system) In this embodiment, it is desirable that the amount of air sent per minute when sending air from the first space S1 (e.g., a hallway, etc.) to the second space S2 (e.g., a living room, etc.) be within the range of 10% or more and 50% or less of the volume of the second space S2.

[0047] This airflow volume takes into consideration cases where the comfort of people in the second space S2 is impaired by the air sent from the ventilation device 3. For example, if the airflow volume per unit time of the ventilation device 3 is large, people in the second space S2 will be continuously exposed to a constant airflow, which may cause discomfort, or a so-called draft feeling.

[0048] Therefore, by setting the upper limit of the amount of air sent per minute by the ventilation device 3 to 50% or less of the volume of the second space S2, it is possible to prevent people in the second space S2 from feeling a draft. Also, by setting the lower limit of the amount of air sent per minute to 10% or more of the volume of the second space S2, the ventilation device 3 can appropriately perform air conditioning (temperature regulation) in the second space S2 using the conditioned air sent from the first space S1, and set the temperature in the second space S2 to a target temperature.

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

[0050] FIG. 12 is a perspective view for explaining the wiring state of each cable 35, 36 of the ventilation device 3 of the embodiment. As shown in FIG. 12, the control circuit unit 34 of the main body 20 has a connection terminal group 34a to which the power cable 35 is connected and a connection terminal 34b to which the connection cable 36 is connected, which are arranged at the lower part of the main body 20. As a result, when connecting each cable 35, 36 drawn from the upper beam member 11 side to the control circuit unit 34, the length of each cable 35, 36 extending from the upper part to the lower part of the main body 20 is secured, so that the degree of freedom of handling each cable 35, 36 is increased and wiring work can be easily performed. The connection cable 36 extended from the control circuit unit 34 is extended above 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. In addition, a wiring cover member 37 is attached to the main body 20 by screwing, and each cable 35, 36 and the motor 24 are covered by the wiring cover member 37. In addition, in some drawings (such as FIG. 9), the wiring cover member 37 is omitted.

[0051] (Bracket material) Fig. 13 is a perspective view showing bracket members supporting the ventilation device of the embodiment. As shown in Fig. 13, the ventilation device 3 includes a pair of bracket members 43 supporting both ends of the main body 20 in the left-right direction (X direction, i.e., the axial direction of the blower fan 23) when the main body 20 is attached to the wall 7. The main body 20 is fixed to the bracket members 43 by screwing. This makes it possible to avoid directly screwing the main body 20 to the wall 7, thereby improving the ease of attachment and detachment of the main body 20 to the wall 7.

[0052] The bracket member 43 has a pair of holding pieces 43a that respectively hold the upper end 20U and the lower end 20L of the main body 20, and a pair of support pieces 43b that respectively support the inlet 21 side and the outlet 22 side of the main body 20. The pair of support pieces 43b are provided so as to contact the board member 13. The set of bracket members 43 are formed to have a common shape and the same dimensions, and can be used at either end of the main body 20 in the left-right direction (X direction). This improves the ease of handling the set of bracket members 43.

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

[0054] In addition, notches 43c are formed at both ends of each holding piece 43a and both ends of each supporting piece 43b, which are the four corners of the outer periphery of the bracket member 43. For example, if the bracket member 43 has corners without the notches 43c, it may be difficult to attach the bracket member 43 or the mounting position may be significantly misaligned depending on the variation in the internal dimensions of the wall 7. In this embodiment, the bracket member 43 has the notches 43c, which suppresses the positions of the holding pieces 43a and the supporting pieces 43b from fluctuating due to the variation in the internal dimensions of the wall 7, and the dimensional accuracy between the bracket members 43 corresponding to the width dimension A in the left-right direction (X direction) of the main body 20 can be appropriately ensured. This improves the workability when mounting the main body 20 between a pair of bracket members 43.

[0055] (How to install the ventilation system) A method of mounting the ventilation device 3 configured as above on the wall 7 will be described. FIG. 14 is a perspective view showing a state in which the ventilation device 3 of the embodiment is mounted on the wall 7. As shown in FIG. 14, a set of bracket members 43 is fixed by screwing at a predetermined position above the lower beam member 16. Next, the main body 20 to which the suction guard member 41 and the blow-out guard member 42 are attached is inserted into the inside of the wall 7 from the first space S1 side through the ventilation hole 7a of the wall 7, and is attached to each bracket member 43 and fixed by screwing. The main body 20 is positioned in the left-right direction (X direction) of the lower beam member 16 based on the center position in the left-right direction (X direction) and mounted. This allows the main body 20 to be easily positioned so as not to be biased in the left-right direction (X direction) of the lower beam member 16 regardless of the internal dimensions of the wall 7 of each building.

[0056] 6 and 7, the suction louver member 26 is attached to the vent 7a of the wall 7 and fixed to the main body 20 by screws, so that the suction port 21 is covered by the suction louver member 26 as shown in Fig. 2. For this reason, the suction louver member 26 is fixed to the main body 20 so as to cover the periphery of the vent 7a of the board member 13 forming the first wall surface W1 as shown in Figs. 4 and 5.

[0057] As with the intake louver member 26, as shown in Figures 6 and 8, the exhaust louver member 27 is attached to the ventilation opening 7b of the wall 7 and fixed to the main body 20 by screws, so that the exhaust opening 22 is covered by the exhaust louver member 27 as shown in Figure 3. For this reason, the exhaust louver member 27 is fixed to the main body 20 so as to cover the periphery of the ventilation opening 7b of the board member 13 forming the second wall surface W2 as shown in Figures 4 and 5.

[0058] Therefore, as shown in Figure 2, on the second space S2 side, only the intake louver member 26 and the exhaust louver member 27, which is smaller than the size of the main body 20, are arranged on the second wall surface W2, thereby improving the appearance of the entire second space S2 (e.g., the entire living room).

[0059] (Effects of the embodiment) As described above, the ventilation device 3 of the embodiment includes the main body 20 having the blower fan 23 that sends the air sucked from the first space S1 through the intake port 21 to the second space S2 through the exhaust port 22, the intake louver member 26 that covers the intake port 21, and the exhaust louver member 27 that covers the exhaust port 22. When the main body 20 is disposed inside the wall 7, the ventilation device 3 has a second area A2 surrounded by the outer periphery 27c of the exhaust louver member 27 when viewed from a direction perpendicular to the second wall surface W2 on the second space S2 side of the wall 7 (Y direction) that is smaller than a first area A1 surrounded by the outer periphery 26c of the frame portion 26b of the intake louver member 26 when viewed from a direction perpendicular to the first wall surface W1 on the first space S1 side of the wall 7 (Y direction). This makes it possible to keep the second area A2 occupied by the exhaust louver member 27 on the second wall surface W2 small. This improves the aesthetic appearance when the second wall surface W2 and the ventilation device 3 are viewed from within the second space S2, by preventing the appearance from being marred by the discharge louver member 27. Therefore, the ventilation device 3 improves the aesthetic appearance of the entire second space S2 (e.g., the entire living room).

[0060] In addition, in the ventilation device 3 of the embodiment, the main body 20 is arranged within the first area A1 when viewed from the direction (Y direction) perpendicular to the first wall surface W1. This makes it possible to easily remove the main body 20 from the wall 7 along the direction (Y direction) perpendicular to the first wall surface W1 by removing the intake louver member 26 from the wall 7. This avoids the problem that the main body 20 becomes difficult to remove from the wall 7 when the exhaust louver member 27 is made smaller. For example, when repairing or replacing the ventilation device 3 attached to the wall 7, the main body 20 can be easily removed from inside the wall 7 through the ventilation port 7a by removing the intake louver member 26 from the ventilation port 7a of the wall 7 without destroying the wall 7. Therefore, the ventilation device 3 can simultaneously improve the aesthetic appearance from the second space S2 side by making the exhaust louver member 27 smaller and ensure the ease of attachment and detachment of the ventilation device 3 to the wall 7 by making the intake louver member 26 larger than the main body 20.

[0061] In addition, in the ventilation device 3 of the embodiment, the second area A2 of the outlet louver member 27 is smaller than half the first area A1 of the inlet louver member 26. This improves the aesthetic appearance when the ventilation device 3 and the second wall surface W2 are viewed from the second space S2 side.

[0062] In the ventilation device 3 of the embodiment, the second area A2 of the outlet louver member 27 is smaller than half the third area A3 of the main body 20 when viewed from the direction perpendicular to the second wall surface W2 (Y direction). This improves the aesthetic appearance when the ventilation device 3 and the second wall surface W2 are viewed from the second space S2 side.

[0063] In the ventilation device 3 of the embodiment, the air outlet 22 is formed along the upper end 20U of the main body 20. This allows the air outlet 22 and the air outlet louver member 27 to be closer to the ceiling 18 in the second space S2, making it easier to obtain the Coanda effect, in which the air that has passed through the air outlet louver member 27 flows along the ceiling 18. Therefore, the ventilation device 3 can widely distribute the air conditioned in the first space S1 and sent from the ventilation device 3 into the second space S2 by the Coanda effect, in which the air flows along the ceiling 18. As a result, the ventilation device 3 can appropriately air-condition the second space S2 by using the conditioned air in the first space S1.

[0064] Furthermore, in the ventilation device 3 of the embodiment, when the main body 20 is disposed inside the wall 7, the lower part of the air outlet 22 in the main body 20 is covered by the board member 13 forming the second wall surface W2. 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, and only the air outlet louver member 27 is disposed on the second wall surface W2. This further prevents the aesthetic appearance of the second wall surface W2 and the ventilation device 3 when viewed from the second space S2 side from being marred by the air outlet louver member 27, thereby improving the aesthetic appearance.

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

[0066] Furthermore, in the ventilation device 3 of the embodiment, with the main body 20 disposed inside the wall 7, the outlet louver member 27 is fixed to the main body 20 so as to cover the periphery of the vent hole 7b of the board member 13 forming the second wall surface W2. This allows the intake louver member 26 to be easily and reliably fixed to the first wall surface W1 without being affected by variations in the internal dimensions of the wall 7, as compared to when the intake louver member 26 is fixed to the board member 13. In addition, since variations in the attachment position of the outlet louver member 27 on the second wall surface W2 are suppressed, the aesthetic appearance of the second space S2 is further improved.

[0067] Furthermore, in the ventilation device 3 of the embodiment, the main body 20 is open below the suction port 21 so that a flow path 29 connecting the suction port 21 and the outlet port 22 is formed by the lower beam member 16 as part of the wall 7. This allows a part of the flow path 29 to be formed by blocking the opening 32 of the main body 20 with a part of the wall 7. This reduces the amount of material forming the main body 20, cutting the manufacturing cost of the main body 20, and also improves the workability when installing the main body 20 by reducing the weight of the main body 20.

[0068] Moreover, the ventilation device 3 of the embodiment includes bracket members 43 that are arranged on the wall 7 and support both ends of the main body 20 in the left-right direction (X direction), and the main body 20 is fixed to the bracket members 43. This makes it possible to avoid directly screwing the main body 20 to the wall 7, thereby improving the ease of attachment and detachment of the main body 20 to the wall 7.

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

[0070] The louver portion 47 is formed only at a position facing the air inlet 21, and has a plurality of blades 47a arranged along the axial direction (X direction) of the blower fan 23. Each blade 47a of the louver portion 47 is inclined with respect to the vertical direction so that, when the air inlet louver member 46 is fixed to the main body portion 20, the air passing through the louver portion 47 from the first space S1 flows from the upper side of the main body portion 20 toward the air inlet 21 below the main body portion 20. Each blade 47a is inclined with respect to the vertical direction, similar to the blade 26a of the air inlet louver member 26 in the above-mentioned embodiment, and each blade 47a is formed to extend toward the first space S1 side and the main body portion 20 side with respect to the frame portion 47b of the louver portion 47. This enhances the function of concealing the inside of the wall 7 (main body portion 20, etc.), and the number of blades 47a of the louver portion 47 can be reduced. The cover portion 48 is formed in a flat plate shape that covers the portion of the main body portion 20 other than the suction port 21 , namely, the upper part of the suction port 21 .

[0071] Furthermore, like the above-described suction louver member 26, the suction louver member 46 is formed such that the main body 20 is disposed within the first area A1 of the suction louver member 46 when viewed from a direction perpendicular to the first wall surface W1 on the first space S1 side of the wall 7 (Y direction). This ensures that the main body 20 can be attached and detached to the wall 7 even when the ventilation device 3 is equipped with the suction louver member 46.

[0072] According to the modified suction louver member 46, compared to the suction louver member 26, the portion having the blades 47a (louver portion 47) is smaller and a cover portion 48 is provided, thereby increasing the mechanical strength of the suction louver member 46. [Explanation of symbols]

[0073] 1. Air conditioning system 2. Air conditioning equipment 3. Ventilation system 5. Building 7. Wall 13 Board components 16 Lower beam member 20 Main body 20L bottom end 20U top end 21 Intake port 22 Air outlet 23 Blower fan 26 Intake louver member 27 Air outlet louver components 29 Flow Path 32 Opening 41 Suction guard member 42 Blowout guard member 43 Bracket member 46 Intake louver member 47 Louver section 48 Cover part A1 1st area A2 2nd area A3 3rd area S1 1st space S2 2nd space W1 1st wall W2 2nd wall

Claims

1. A ventilation device provided in a wall that separates 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, 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.

Images