JP2001235207A - Ventilation apparatus for house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation apparatus for a house in which noise is reduced, and air leakage is prevented to improve the ventilation efficiency. SOLUTION: A ventilation unit 3 is provided in a ventilation apparatus 1 for a house. The unit 3 provided with a fan Fd extends upwards from a floor F between wall panels P and P in the same wall surface to suck air under the floor and blows it out to a living room space 2. The unit 3 is provided with a duct 35 extending upwards from an air ejecting part 17 of a fan Fd to an outlet 7. The duct 35 is provided with an upside outlet 37 for letting out air of the under floor to the upper part than the outlet 7, and a cover 39 capable of closing the upper outlet 37 by covering it. The cover 39 has a noise absorptive property, and it is provided with a packing for airtightly closing the upper outlet 37.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a house ventilation system which can take in air under the floor of a house into a room to ventilate the house.

[0002]

2. Description of the Related Art Hitherto, various types of house ventilation devices have been developed for introducing air in an underfloor space (that is, underfloor air) into a living room space in order to ventilate a house. For example, FIG.
As shown in FIG. 1, the house ventilation device a is arranged between the wall panels c1 and c2 for partitioning the house, and is unitized in a tower shape extending vertically from the floor body f to the ceiling k, and has an interior. An air passage e is formed between the underfloor space d and the living room space b.

Further, upper and lower fans g1 and g2 are arranged in the air passage e. For example, in summer, the lower fan g2 is used to suck cool air in the underfloor space d and to blow air from the lower outlet h. In addition to being able to blow out into the living room space b, in the winter season, warm air that tends to stay in the upper portion of the living room space b can be taken in from the air intake i by using the upper fan f, and blown out from the lower air outlet j. .

The lower fan g2 is provided with a duct y for supplying air blown from the fan to the lower outlet. The duct y has an upper discharge part n and a lid r for closing the upper discharge part n. By operating the lid r to the open position shown by the dashed line in FIG. 11, for example, by simultaneously driving the upper and lower fans g1 and g2, the air in the underfloor space d and the air in the upper part of the house space b are mixed. Then, necessary air can be circulated, for example, by supplying the air to the house space b.

[0005]

However, in the conventional house ventilation system a, when the lid of the duct y is closed, the air blown out from the fan g2 causes the air to be blown from the lid r.
In addition to the collision with the inner surface of the housing and noise, there is a problem that air leaks from a slight gap between the lid r and the upper discharge portion n, lowers the ventilation efficiency, and causes a resonance sound when the air leaks. .

The present invention has been devised in view of the above-described problems, and is based on the provision of a packing having a sound absorbing property and an air-tight closing of the upper discharge port in the lid as described above. It is an object of the present invention to provide a house ventilation device capable of solving the above-mentioned problem by reducing ventilation and preventing air leakage at the time of closing to enhance ventilation efficiency.

[0007]

According to a first aspect of the present invention, there is provided a living room which extends upward from a floor and sucks air under the floor into a room between wall panels arranged in the same wall. A house ventilation device provided with a ventilation unit having a fan capable of blowing into a space, wherein the ventilation unit has a duct extending from an air discharge part of the fan to the upper outlet, and the duct includes: An upper discharge port for blowing the underfloor air upward from the discharge port, and a lid that can close the upper discharge port by covering the upper discharge port, and the lid has an upper discharge port for closing. Characterized by having a sound-absorbing packing covering the front end.

According to a second aspect of the present invention, there is provided the ventilation system for a house according to the first aspect, wherein the packing is made of a sheet-like foamed elastic body disposed on an inner surface of the lid covering the upper discharge port. Device.

According to a third aspect of the present invention, the lid is
The upper discharge port is opened and closed while swinging by being fixed to a substantially horizontal rotating shaft that rotates by operation of the operation unit,
A gear transmission unit including a rack tooth that slides up and down by the operation unit and a gear that is driven by the slide of the rack tooth and rotates the rotation shaft is interposed between the rotation shaft and the operation unit. 3. The method according to claim 1, wherein
A house ventilation device as described.

According to a fourth aspect of the present invention, in the house ventilation device according to the third aspect, the operating portion includes a lock means fixed at at least an open position and a closed position of the lid. is there.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a house ventilation device 1 of the present embodiment.
FIG. 2 shows a horizontal sectional view of the partial exploded perspective view. In the figure, the house ventilation device 1 of the present embodiment extends vertically from the floor F to the ceiling C and sucks air under the floor between partition walls P, P in the present example, which are arranged in the same wall in the house. The ventilation unit 3 which can blow out to the living room space 2 is provided.

The ventilating unit 3 comprises a unit body 4 and a decorative cover 5 in this embodiment, and is manufactured and assembled in advance in a factory or the like, for example. In this embodiment, the unit main body 4 is formed in a substantially box shape extending upward around a floor opening Fo provided in the floor body F and having an opening O on a front surface facing the living room space 2. Are provided with fans Fu and Fd. Further, the decorative cover 5 is detachably provided so as to cover the opening of the unit main body 4.

The decorative cover 5 comprises a cover body 5a and a reinforcing portion 5b disposed on the rear side of the cover body 5a. In this example, the cover main body 5 a is formed of a resin molded product, and has a plate shape extending over substantially the entire length of the ventilation unit 3, and can close the opening O of the unit main body 4. Further, in this example, the cover main body portion 5a includes an upper suction port 6 for sucking high-altitude air in the living room space 2, a lower blowing port 7 capable of blowing the underfloor air at a lower position in the living room space 2, and a lower blowing hole. A middle outlet 9 is formed between the mouth 7 and the upper inlet 6.

A grill G provided with a louver or the like capable of appropriately adjusting a wind direction is attached to each of the suction ports 6, 9 and the outlet port 7 provided in the decorative cover 5. In addition, makeup cover 5
The reinforcing portion 5b is made of a metal material in this example, and includes a base piece 12 extending along the cover main body portion 5a and side pieces 13 bent at a small length toward the rear surface at both ends of the base piece 12.

In the present embodiment, the unit main body 4 has a lower fan Fd capable of sucking under-floor air and blowing out to the living room space 2 and an upper fan Fu capable of sucking and blowing out high-altitude air in the living room space 2. Are provided. The lower fan Fd and the upper fan Fu are, for example, sirocco fans, and a rotor (not shown in detail) rotated around a horizontal axis perpendicular to the wall surface of the wall panel P by the electric motor M, and a case portion covering the rotor. 15 and so on. An air suction unit 16 that sucks air from a surface parallel to the wall surface;
An air discharge port 17 provided in the radial direction is formed.

The ventilating unit 3 of this embodiment has a drawer 20 which can be pulled out toward the living room space 2 between the air suction part 16 of the lower fan Fd and the floor opening Fo of the floor F. I have. In this example, the drawer section 20 is shown in FIGS.
As shown in the figure, a drawer main body 20a provided on the floor opening Fo and capable of being taken in and out of the ventilation unit 3;
Filter 20b stored in drawer body 20a
It is comprised including.

The drawer body 20a has, for example, a handle 21 on the front surface, an open top surface, and a bar 22 on the bottom surface.
A plurality of holes 23 partitioned by are formed. Further, the filter 20b is provided with the crosspiece 2 of the drawer main body 20a.
For example, a dust collection filter that is supported and mounted by the periphery of the hole 2 and the hole 23 and that prevents transmission of insects, pollen, dust, and the like is used. Further, in this example, a filter holder 20c having an opening that sandwiches the filter 20b with the drawer body 20a is provided.

By providing such a drawer section 20 so as to be able to be taken in and out of the ventilation unit 3, the underfloor air is purified by the filter 20b and sucked by the lower fan Fd. Intrusion of dust and the like can be prevented. In addition, since the filter 20b can be easily replaced by pulling out the drawer portion 20 to the living room space 2, the maintainability is improved and the usability can be greatly improved. In FIG. 3, an upper guide 28 having an opening is provided above the drawer 20 and a lower guide 24 having an opening is provided below the drawer 20 to smoothly guide the slide of the drawer 20.

In this embodiment, the lower fan Fd directs the air suction portion 16 toward the other wall surface W2 opposite to the wall surface W1 facing the living room space 2 and the air discharge portion 17 upward. To the unit body 4. Further, in this example, a rectifying means 30 for guiding at least a part of the underfloor air to above the air suction portion 16 of the lower fan Fd is provided.

In general, when the ventilation unit 3 is formed to have a small thickness in order to improve the appearance, as shown in FIG. 4, the inner surface 4i of the unit main body 4 and the air suction portion 16 of the lower fan Fd are provided. Is very small. In such a suction gap S, since a large amount of air cannot pass through, the underfloor air can be sucked only in the lower area of the air suction section 16 and the upper area of the air suction section 16 hardly contributes to the suction. Then, the amount of air blown from the lower fan Fd tends to decrease.

Therefore, in the present embodiment, the rectifying means 30 is provided to secure a sufficient amount of air blown by the lower fan Fd. As shown in FIGS. 1, 4 and 5, the rectifying means 30 of the present embodiment includes two rectifying plates 31 having different heights extending from the upper guide 28 having an opening and disposed above the drawer 20. , 32. The current plates 31 and 32 vertically separate the space between the inner surface 4i of the unit main body 4 and the case 15 of the lower fan Fd so that the underfloor air in the ventilation unit 3 in this example. It is divided into three flow paths E1, E2 and E3 in the width direction. The under-floor air passing through the flow paths E1, E2, and E3 is guided to different positions of the air suction unit 16 of the lower fan Fd.

The under-floor air flowing through the flow path E1 flows to the left side area A1 side of the air suction section 16 shown in FIG.
The air flowing through the air suction unit 16 is guided to the right area A2 side of the air suction unit 16, and the air flowing through the flow path E3 is guided to the upper area A3 side of the air suction unit 16 and sucked. For this reason, since the underfloor air can be sucked by utilizing the substantially entire suction area of the air suction unit 16 while making the suction gap S small, the amount of air blown by the lower fan Fd can be improved, and the ventilation efficiency can be increased. Useful.

As shown in FIGS. 1 and 6, a lower duct 35 is connected to the air discharge section 17 of the lower fan Fd. The lower duct 35 has a blow-out opening 38 at a position extending upward in a cylindrical shape and facing the lower blow-out opening 7 of the decorative cover 5. A louver is provided in the blowout opening 38 so that the direction of the wind from the blowout opening 38 can be adjusted and the blowout opening 38 can be closed. The lower duct 35 is connected to the outlet 3
8 is provided with an upper discharge port 37 capable of discharging at a position above the upper portion 8 and a lid 39 for opening and closing the upper discharge port 37. This will be described later.

The upper fan Fu is connected to the air suction unit 16.
Is fixed to the unit main body 4 with the air outlet portion 17 facing downward and the air discharge portion 17 facing downward. The upper duct 36 is connected to the air discharge portion 17 of the upper fan Fu. The upper duct 36 has a blowout opening 36A at a position facing a middle blowout opening 9 provided in the decorative cover 5 in a cylindrical shape, extending downward. A guide piece 50 is provided between the upper duct 36 and the lower duct 35 of the unit body 4 to guide the air blown out from the upper outlet 37 to the middle outlet 9. Note that the fans Fu and Fd of the present example are of a thin type that are fixed to the unit main body 4 with screws or the like and housed within the thickness range of the wall panel P.

The house ventilation system 1 configured as described above
By driving the lower fan Fd, fresh underfloor air is supplied from the floor opening Fo provided in the floor F to the filter 20.
The air is sucked up through the outlet b and is discharged from the outlet 38 through the lower duct 35 and the outlet 7 below the decorative cover 5 and can be introduced into the living room space 2. In addition, by driving the upper fan Fd, high-level air in the living room space 2 can be sucked in from the upper suction port 6 of the decorative cover 5 and discharged from the middle outlet 9, thereby circulating the air in the living room and increasing the high-level air. Helps reduce low temperature differences.

Further, in the lower duct 35,
When the lid 39 is opened and the blowout opening 38 is closed using a louver, the underfloor air is blown upward from the upper discharge port 37 inside the unit main body 4 and mixes with the high altitude air in the living room. The air can be blown out from the middle outlet 9, which helps to further improve the ventilation efficiency.

As shown in FIG. 2, the unit main body 4 of the present embodiment is provided with a frame 4a made of a metal material and having a substantially U-shaped cross section and an outer surface of the frame 4a. And a wall member 4c disposed on the back surface of the frame 4a.

The frame 4a has a base 40 parallel to the wall surface and a pair of bent pieces 41, 41 which are bent on both sides toward the living room space 2 and project beyond the front surface of the wall panel P. I have it. Such a frame 4a can suitably reinforce the ventilation unit 3 and help to improve the airtightness inside.

The bent piece 41 of the frame 4a
The side wall member 4b facing the adjacent wall panels P, P is fixed to the outer side surface of. In the present embodiment, the main wall portion 43 accommodated within the thickness of the wall panel P by terminating the front surface inside the front surface of the wall panel P in this example.
And a decorative edge material 44 fixed to the front surface of the main wall portion 43 and protruding from the front surface of the wall panel P toward the living room space 2.
Consists of The front surface of the main wall portion 43 in this example is substantially flush with the front surface of the wall panel P.

As shown in an enlarged view in FIG. 7, the decorative edge member 44 is made of a wooden material in this embodiment, is nailed to the wooden main wall portion 43, and is fixed to the bent piece 41. It has a substantially L-shaped cross-section including an attachment portion 44a and a projecting portion 44b projecting forward from the attachment portion 44a and forming a space 45 extending vertically between the bent piece 41 and the bent portion 41. An example is shown below. Decorative edge material 44 of this example
Extends from the floor F to the ceiling C, and has a small height skirting board 47 and a peripheral edge 49 disposed at the lower and upper portions of the wall panel P, respectively. Can be terminated in close contact with each other, and it can look good and give up.

A space 45 formed between the projecting piece 44b of the decorative rim 44 and the bent piece 41 is used as a space for a mounting portion 50 to which the decorative cover 5 is attached. In this example, the mounting portion 50 is provided on the substantially horizontal receiving shaft 51 projecting outward from the bent piece 41 and the side piece 13 of the reinforcing portion 5b of the decorative cover 5 and is perpendicular to the axial direction of the receiving shaft 51. And an insertion groove 52 (shown in FIG. 1) extending obliquely upward and terminating on a flat surface. Therefore, by inserting the insertion groove 52 of the decorative cover 5 into the receiving shaft 51 and pushing it down, the back surface of the reinforcing plate 5b of the decorative cover 5 can approach or contact the end of the bent piece 41, The opening O of the ventilation unit 3 can be closed. Such a mounting part 50 can be blinded from the outside by the decorative rim material 44, and the appearance can be further improved.

In the present embodiment, the wall material 4c constituting the other wall surface W2 of the ventilation unit 3 is finished almost flush with the wall panel P and has a wall finishing material 55 having the same decorative finish as the wall panel P. And a heat insulating material 56 disposed between the wall finishing material 55 and the base 40 of the frame 4a. Since the frame 4a is made of a metal material as described above, the heat transfer coefficient is higher than that of a wood material. Therefore, when the heat insulating material 55 is not provided, heat is easily transmitted from the base 40 to the wall finishing material 55 on the other wall surface W2 of the ventilation unit 3. In particular, when heating or the like is performed on the other wall surface W2 side in winter, cold heat is transmitted to the base portion 40 and the wall finishing material 55, and dew condensation occurs only in this portion, and discoloration due to mold or the like may occur due to the repetition. .

In the present embodiment, by disposing a heat insulating material 56 between the wall finishing material 55 and the metal base 40, transmission of heat from the base 40 to the wall finishing material 55 is interrupted, and the ventilation unit 3 can prevent the wall finishing material 55 constituting the other wall surface W2 from being stained. The material of the heat insulating material 56 is not particularly limited as long as it can block the heat.
For example, a foam, particularly a foam resin, is suitably used.

In the house ventilation device 1 of the present embodiment, a packing R is disposed on the lid 39 of the lower duct 35 as shown in FIGS. The packing R is made of a material having a sound absorbing property, and is preferably made of an elastic foam having closed cells, in this example, a foamed rubber material. As such a foamed rubber material, for example, ethylene propylene rubber (E
It is preferable to use a rubber material having small gas permeability such as PM, EDPM). This packing R is a cover 39 in this example.
A sheet-like member arranged on the inner surface 39i covering the upper discharge port 37 and having a size larger than the size of the upper discharge port 37 is illustrated.

When the lid R is closed, the packing R covers the upper discharge port 37, while its peripheral edge is sandwiched between the peripheral edge of the upper discharge port 37 and the lid 39 to be compressed elastically. Due to the deformation, the airtightness of the upper discharge port 37 at the time of closing is improved, so that the air leakage can be prevented, and the reduction of the blowing efficiency and the generation of resonance noise can be effectively suppressed. Further, the air blown out from the lower fan Fd passes through the lower duct 35, collides with the packing R that covers the closed upper discharge port 37 and faces the inside of the duct 35, changes its direction, and changes its direction. Blown out from. At this time, since the packing R is made of a foam having closed cells, it is possible to provide a ventilation device that exhibits a sound absorbing effect such as absorbing a collision sound with air and is excellent in quietness.

In the present embodiment, the lid 39 is provided with an operation unit 60.
The mounting piece 61 is attached to the substantially horizontal rotating shaft 61 which rotates by the operation of
a through the upper discharge port 3
7 can be opened and closed. The operation unit 60 includes a plate-shaped base 60a in this example, and a knob 60b protruding from the front surface of the base 60a and held by fingers. An insertion portion 60c is formed on the rear surface of the base 60a. In this example, the insertion portion 60c is constituted by upper and lower claw pieces formed to open outward.

The decorative cover 5 has the insertion portion 60c
Into which a vertically long hole 62 is formed which can be slid up and down. The insertion portion 60c of the operation portion 60 is
It is inserted into the insertion hole 65 of the mounting base 64 through the long hole 62 of the decorative cover 5. Thereby, the operation unit 60 and the mounting base 64 can be integrally mounted on both sides of the decorative cover 5.

The rotation shaft 61 is rotatably supported by a support 66 provided on the lower duct 35. Further, between the rotating shaft 61 and the operation unit 60, a gear transmission unit 6 is provided.
7 are interposed. The gear transmission section 67 is provided with the operation section 60.
Rack teeth 69 that slide up and down with the rotation shaft 6 that is driven by the slide of the rack teeth 69.
And a gear 70 for rotating the first gear 1.

The rack teeth 69 are fixed to the mounting base 64 via a support block 73 with screws or the like. In this example, the gear 70 meshes with a pinion 70a that meshes with the rack teeth 69, an idle gear 70b that is coaxially fixed to the pinion 70a and has a larger pitch circle than the pinion 70a, and meshes with the idle gear 70b. The fan gear 70c has a larger pitch circle than the idle gear 70b and is fixed to the rotary shaft 61. The shaft 75 supporting the pinion 70a and the idle gear 70b is attached to the mounting base 7 provided on the side surface of the lower duct 35.
6 rotatably supported.

Therefore, by sliding the operation unit 10 up and down, the rack teeth 69, the pinion 70a, the idle gear 70b, and the fan-shaped gear 70c can be driven to rotate the rotary shaft 61. Can be done. In addition, the use of the gear transmission portion 67 enables the lid 39 to be smoothly opened and closed with a constant operating force as compared with a device using a link mechanism or the like.

The operating section 10 of the present embodiment includes a lock mechanism 77 fixed at least at the open position and the closed position of the lid 39. In this embodiment, the lock mechanism 77 is provided with a convex portion 79 protruding from the surface of the mounting base 65 facing the decorative cover 5 and a concave portion provided on the back surface of the decorative cover 5. And a concave portion 80 that fits in the open position and the closed position to prevent the operation unit 10 from sliding. The convex portion 79 and the concave portion 80 can be locked by fitting each other. For example, when the lid 39 is locked in the open state, the operation unit 60 is slightly strengthened toward the closed position of the lid 39. By doing so, the protrusion 79 can be detached from the recess 80 and the lock can be released. Further, for example, when the lid 39 is closed, the packing R is compressed and deformed and attempts to lift the lid 39 by the restoring force. However, by providing such a lock mechanism 77, the restoring force of the packing R is increased. This effectively prevents the lid 39 from being lifted, thereby further suppressing air leakage.

[0042]

As described above, in the house ventilation system according to the present invention, the lid for closing the upper discharge port of the duct is provided with a packing having a sound absorbing property and for closing the upper discharge port in an airtight manner. Thereby, when the lid is closed, the airtightness of the upper discharge port can be increased to prevent the air from leaking, and it is possible to effectively suppress a decrease in the blowing efficiency, the generation of resonance noise, and the like. In addition, the noise when air collides with the closed upper discharge port can be absorbed by the packing,
It can enhance the quietness of the house ventilation system.

When a gear transmission is interposed between the cover and an operating portion for opening and closing the cover, the cover can be smoothly opened and closed with a constant operating force as compared with a device using a link mechanism or the like. sell. Further, when the operating portion is provided with a lock means fixed at least at the open position and the closed position of the lid,
Lifting of the lid due to the restoring force of the compressed packing upon closing can be effectively prevented, and air leakage can be further suppressed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view illustrating a house ventilation device according to an embodiment.

FIG. 2 is a horizontal sectional view thereof.

FIG. 3 is a sectional view of a drawer.

FIG. 4 is a partial sectional view showing a lower fan.

FIG. 5 is a perspective view illustrating a rectifying unit.

FIG. 6 is a vertical partial sectional view thereof.

FIG. 7 is an enlarged sectional view showing a mounting portion between the decorative cover and the unit body.

FIG. 8 is a partial sectional view of a lower duct.

FIG. 9 is a perspective view thereof.

FIG. 10 is a perspective view of a conventional house ventilation device.

FIG. 11 is a sectional view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 House ventilation apparatus 2 Living room space 3 Ventilation unit 4 Unit main body 5 Decorative cover 35 Lower duct 37 Upper discharge port 39 Lid Fu Upper fan Fd Lower fan P Wall panel R Packing

Claims (4)

[Claims] 1. A house ventilation system having a ventilation unit provided between a wall panel arranged in the same wall surface and having a fan extending upward from a floor body and capable of sucking air under the floor into the interior and blowing the air into a living room from an outlet. An apparatus, wherein the ventilation unit has a duct extending from an air discharge part of a fan to the upper outlet, and the upper duct discharges under-floor air upward from the outlet, A house having a lid capable of closing the upper discharge port by covering the upper discharge port, and having a sound absorbing packing covering the upper discharge port when the lid is closed. Ventilation equipment. 2. The house ventilation device according to claim 1, wherein said packing is made of a sheet-like foamed elastic body disposed on an inner surface of said lid covering said upper discharge port. 3. The lid body is fixed to a substantially horizontal rotating shaft which is rotated by operating an operating part, and swings to open and close the upper discharge port, and between the rotating shaft and the operating part. 3. A gear transmission unit including a rack tooth slid up and down by an operation unit and a gear driven by the slide of the rack tooth to rotate the rotation shaft.
The described house ventilation system. 4. The house ventilation device according to claim 3, wherein said operation unit includes a lock means fixed at least at an open position and a closed position of said lid.