JPH0726848A - Forced suction type ventilating window - Google Patents

Abstract

PURPOSE:To ventilate the inside of a room without having any special effect on thermal environment in the room and to utilize the ventilation to prevent the condensation on the indoor side of a window. CONSTITUTION:A forced suction type ventilating window absorbs air to guide it into a room, and it is equipped with a window 4 and a ventilating unit 5. The ventilating unit 5 is approached to the side edge of the window 4 and is loaded to a wall surface in which the window 4 is formed. The ventilating unit 5 is equipped with an air inlet, an outlet to an indoor side and a blowing fan 15 blowing out absorbed air in the room. The ventilating unit 5 is so placed that an atmospheric current blown out from the outlet is moved in approximately parallel with the window surface around it.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to windows in buildings.

[0002]

2. Description of the Related Art In cold regions, indoors are often hermetically sealed for economical heating. In addition, since the airtightness of the window itself has improved with the development of sash technology, it is necessary to take measures to prevent ventilation and condensation in the room. Therefore, conventionally, a ventilation fan is attached to one corner of the wall surface, or a ventilation fan or a ventilation unit is fitted in a part of the window sash, and these are sometimes operated to take in outside air.

However, such a ventilation fan has a drawback that it introduces a large amount of outside air into a room in a short time, and even if the ventilation is good, it temporarily destroys a comfortable warm environment in the room. Further, since the introduced outside air is blown out toward the central part of the room, there is almost no dew condensation preventing function particularly on the indoor side surface of the window where dew condensation is severe.

Even if the intake of the outside air is gentle, the ventilation unit blows the outside air toward the center of the room, and therefore has almost no dew condensation preventing function. Also, if a ventilation unit is attached to the window sash, the area of daylight is reduced and the appearance of the window is deteriorated.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a forced intake type ventilation window which has a high function of gently ventilating a room and preventing dew condensation on the inside surface of the window.

[0006]

[Means for Solving the Problems] A forced intake type ventilation window is formed by combining a window and a ventilation unit. The ventilation unit is provided with an outside air inlet, an outlet to the inside of the room, and a blower fan for sending the introduced outside air into the room. Attach the ventilation unit to the wall with the window close to the edge of the window.

The ventilation unit is arranged so that the air flow blown out from the air outlet moves parallel to the window surface. A configuration in which the blower fan is a cross flow type and the blowout port is formed elongated along the side edge of the window is preferable.

[0008]

[Function] The blower fan introduces outside air into the room. The air flow from the air outlet dries the interior surface of the window to prevent condensation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an opening 2 in a wall surface 1 of a building, in which a window sash 3 is attached to form a window 4, and a ventilation unit 5 is provided near an upper edge which is one of the edges. It is installed. The opening 2 is divided into the building body by the lintel 6, the window stand 7 and the middle lintel 8, the window 4 is attached to the lower part of the inner lintel 8, and the ventilation unit 5 is attached to the upper part of the inner lintel 8. There is.

The window sash 3 has a sash frame 9 in which upper and lower horizontal frames and left and right vertical frames are combined into a rectangle, and a shoji 10 on the indoor and outdoor sides.
The window sash having the screen door 11 attached to it and the screen door 11 attached thereto has a normal configuration. The ventilation unit 5 (FIG. 2) includes a U-shaped casing 12 having an open outdoor side, a louver 13, an air filter 14, and a blower fan 15.

The casing 12 serves as a wind tunnel for housing the blower fan 15 and diverting the outside air introduced by the blower fan 15 toward the indoor side, and has a length substantially equal to the upper edge of the window 4. The left and right ends are shielded by end plates. Further, the casing 12 is formed with an elongated punched hole 16 along the length direction thereof from the inside of the lower surface chamber that is bent in a U shape. The opening on the outdoor side is a substantially outside air introducing port, and the punching hole 16 is a substantially blowing port.

The louver 13 is a louver plate 1 having a chevron cross section.
A plurality of 7 are arranged in parallel and assembled to the louver frame 18, and are attached to the casing 12 by the louver frame 18. The air filter 14 is arranged inside the louver plate 17, and is attached to the louver frame 18 while being neglected. The louver 13 is for preventing the invasion of birds and large scattered objects, and the air filter 14 is for preventing the intrusion of dust.

The blower fan 15 is composed of a motor 19, blades 20 rotated by the motor 19 and an air guide passage 21, and is wholly fixed to the bottom of the casing 12 by a stay 22. The fan itself is a cross flow fan, and blades 20 are attached to a shaft arranged in parallel with the longitudinal direction of the casing 12, and a motor 19 is connected to one end of the shaft. Therefore, the air guide passage 21 is also formed in an elongated shape in parallel with the longitudinal direction of the casing 12, and extends along the elongated punched hole 16 of the casing 12.

When the ventilation unit 5 is fitted into the upper portion of the window 4 and fixed to the lintel 8, the outlet of the air guide passage 21 is located inside the window sash 3. Reference numeral 23 is a blowing nozzle, which is arranged along the bottom of the elongated punched hole 16 of the casing 12 and is mounted between the decorative frame 24 on the indoor side and the indoor side surface of the middle lintel 8. The cross section of the blowing nozzle 23 is wide at the upper side in contact with the air guide passage 21, and the blowing port at the lower side is narrow so as to be close to the indoor side surface of the window sash 3. Reference numeral 25 indicates a wall surface on the indoor side, and reference numeral 26 indicates a case where a curtain is attached (FIG. 1).

With the above construction, when the blower fan 15 is driven with the window 4 closed, outside air is taken in by the rotating blades, and the outside air is blown downward from the blowout nozzle 23 through the air guide passage 21. To be done. At this time, the outlet is an elongated opening in the width direction of the narrow window 4 and is close to the indoor side surface of the window sash 3. Therefore, the blown outside air flows downward in a direction substantially parallel to the indoor side surface of the window 4. Then, the inside surface of the window 4 is dried. The air flow of the outside air that has reached below the window 4 collides with the lower frame of the window sash 3 and diffuses into the room to ventilate the room. The above-mentioned drying function has a great effect when the curtain 26 is attached to the indoor side of the window 4.

If the fan itself is a cross flow fan, the air flow generated by the blower fan 15 is wide and the window 4
It is easy to obtain a soft air flow on the indoor side of the. Also, the driving sound is low. Of course, even with an axial fan, a wide and gentle air flow can be obtained by providing the air guide 21 with a buffer plate or the like.

The above is an embodiment, and the present invention is not limited to the illustrated specific configuration. The ventilation unit 5 may be attached not only at the upper edge of the window sash 3 but also at a position close to the lower edge or the left and right edges. The blowing nozzle 23 may be not only an elongated opening, but also a plurality of circular holes arranged in the width direction of the window 4. Further, the blowing nozzle 23 can be formed directly by extending the peripheral edge of the punched hole 16 of the casing 12 downward. The window 4 may be of another type such as a dead-fitting window or hinged door.

[0018]

EFFECTS OF THE INVENTION Ventilation can be performed without particularly affecting the indoor thermal environment. Ventilation can be used to efficiently prevent condensation especially on the indoor side of windows. The ventilation unit does not narrow the opening area of the window, so sufficient lighting and visibility can be obtained. In addition, the appearance of the window is not damaged. When using a cross-flow fan, the introduction of outside air into the room is performed more gently.

[Brief description of drawings]

FIG. 1 is a side view of a cross section of a window.

FIG. 2 is a side view with an enlarged cross section showing a ventilation unit section.

[Explanation of symbols]

 1 Wall 2 Opening 3 Window Sash 4 Window 5 Ventilation Unit 12 Casing 13 Louver 14 Air Filter 15 Blower Fan 23 Blow-out Nozzle 26 Curtain

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[Procedure amendment]

[Submission date] July 28, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

3. The forced intake type ventilation window according to claim 1, wherein the blower fan is a cross flow type and the blowout port is formed elongated along the side edge of the window.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

2. Description of the Related Art In cold regions, indoors are often hermetically sealed for economical heating. In addition, since the airtightness of the window itself has improved with the development of sash technology, it is necessary to take measures to prevent ventilation and condensation in the room. Therefore, conventionally, a ventilation fan is attached to one corner of the wall , or a ventilation fan or a ventilation unit is fitted in a part of the window sash, and these are occasionally operated to take in outside air.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

The ventilation unit is arranged so that the air flow blown out from the outlet moves to the vicinity of the window surface. Blowing
The airflow blown from the outlet is parallel to the window surface near the window surface.
A configuration arranged to move is preferred. A configuration in which the blower fan is a cross flow type and the blowout port is formed elongated along the side edge of the window is preferable.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

FIG. 1 shows an opening 2 in a wall 1 of a building in which a window sash 3 is attached to form a window 4 and a ventilation unit 5 is provided near an upper edge which is one of its edges. It is installed. The opening 2 is divided into the building body by the lintel 6, the window stand 7 and the middle lintel 8, the window 4 is attached to the lower part of the inner lintel 8, and the ventilation unit 5 is attached to the upper part of the inner lintel 8. There is.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0015

[Correction method] Change

[Correction content]

With the above construction, when the blower fan 15 is driven with the window 4 closed, outside air is taken in by the rotating blades, and the outside air is blown downward from the blowout nozzle 23 through the air guide passage 21. To be done. At this time, the outlet is an elongated opening in the finding width direction of the narrow window 4 and is close to the indoor side surface of the window sash 3. Therefore, the blown outside air is almost parallel to the indoor side surface of the window 4. To the lower side to dry the indoor side surface of the window 4. Also, window 4
The airflow of the outside air that has reached the lower part of the window collides with the lower frame of the window sash 3 and is eventually diffused into the room, so that the room is ventilated. The above-mentioned drying function is provided by the curtain 26 on the indoor side of the window 4.
The effect is great when is attached.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

If the fan itself is a cross flow fan, the air flow generated by the blower fan 15 is wide and the window 4
It is easy to obtain a soft air flow on the indoor side of the. Also, the driving sound is low. Of course obtain a wide gentle stream width by even axial fan in the air guide passage 21 provided etc. buffer plate.

Claims (2)

[Claims] 1. A window and a ventilation unit are provided, and the ventilation unit is mounted on a wall surface forming the window so as to be close to the edge of the window, and the ventilation unit introduces an outside air introduction port, an indoor air outlet, and introduced outside air. A forced air intake type ventilation window, which is equipped with a blower fan that blows air into the room, and is arranged so that the airflow blown out from the air outlet moves parallel to the window surface. 2. The forced intake type ventilation window according to claim 1, wherein the blower fan is a cross flow type and the blowout port is formed to be elongated along the edge of the window.