JP2009084924A - Air intake structure of building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cool hot air to take it indoors particularly in summer by utilizing a shutter 18 mounted to a sash. <P>SOLUTION: A shutter box 12b storing the shutter 18 having metal slats 21 is arranged at the upper part of a sash frame 8 of a building, and a communicating port 23 serving communication between the shutter box 12b and the indoors is formed in a wall part 1 of the building. An air intake fan 24 is mounted to the indoor side of the communicating port 23, and when the shutter 18 and the sash 10 are in the closed state, outside air is taken indoors by the air intake fan 24 from a clearance between the shutter 18 and the sash 10 through the shutter box 12b and the communicating port 23. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air intake structure of a building that is taken into a room by cooling outside air using a shutter disposed on the outdoor side of a window.

  Recently, the function and construction technology of building materials have improved, the sealing performance has improved, and when the shoji is closed, the indoor air is blocked from the atmosphere. For this reason, the warm air in the room warmed by the heating device does not escape to the outside in winter, and the indoor air cooled to a low temperature by the cooling device does not escape to the outside in summer, so that the efficiency of the heating and cooling is improved. However, on the other hand, when gas is used in the kitchen or when an oil or gas stove is used for heating, carbon monoxide due to incomplete combustion diffuses into the air, and this increases gradually. And it becomes a very dangerous state. In addition, it is a health problem that ticks, germs, dust, etc. in the room stay in the air forever.

Therefore, as shown in Patent Documents 1 and 2, it is now obliged to install a ventilator in order to ventilate the air in the house for 24 hours according to the Building Standards Law. For example, it is taken into the room from the living room or the like. The air is released from the bathroom ventilator to the atmosphere.
JP 2004-61068 A JP 2006-317058 A

  However, ventilation is important from the viewpoint of safety and health, but ventilation releases indoor cold air in the summer, and instead takes hot outdoor air indoors, and in the winter warm air indoors. It is undeniable that there is a problem that energy is wasted if it is discharged into the room and cold outside air is taken into the room instead.

  An object of the present invention is to solve the above-described problems and to provide an air intake structure for a building that can cool and take in hot air particularly in summer by using a shutter attached to a sash.

  In order to solve the above-mentioned problem, the invention according to claim 1 is arranged such that a shutter box that houses a shutter provided with a metal slat is disposed on an upper part of a sash frame of a building, When the intake fan is installed on the indoor side of the communication port and the shutter and the shoji are closed, the intake fan allows outside air to pass between the shutter and the shoji through the shutter box and the communicator. It is characterized by being taken indoors.

  The invention according to claim 2 is characterized in that, in claim 1, the shutter box is formed separately from the sash frame.

  The invention according to claim 3 is characterized in that, in claim 1, the shutter box is formed integrally with the sash frame.

  According to the first aspect of the present invention, the intake fan is attached to the indoor side of the communication port that communicates the shutter box and the room. When the shutter and the shoji are in the closed state, the outside air is removed from the shutter by the intake fan. The outside air that has entered the space between the shutter and the shoji comes into contact with the metal slats and shutter box of the shutter. In the nighttime and the shutter box, metal slats are also cooler than the outside temperature due to radiative cooling at night. Therefore, the outside air that has entered the space between the shutter and the shoji comes into contact with the slats to be cooled, is further cooled in the space inside the shutter box, and is taken into the room through the communication port. Therefore, the outside air whose temperature has been lowered can be supplied into the room without being cooled by the cooling device.

  According to the invention according to claim 2, since the shutter box is formed separately from the sash frame, when the shutter is retrofitted to the existing sash frame, the intake structure according to claim 1 is simultaneously formed. Can do.

  According to the invention of claim 3, since the shutter box and the sash frame are integrally formed, special construction is required in addition to forming a communication port in the wall and installing an intake fan on the indoor side. And not.

  FIG. 1 is a longitudinal sectional view of a sash portion of a building, and FIG. 2 is a transverse sectional view thereof. In these drawings, reference numeral 1 denotes a wall portion. 2 is an interior material, 3 is an exterior material. An opening 4 is formed in the wall 1, and a sash frame 8 including a sash upper frame 5, a sash lower frame 6, and left and right sash vertical frames 7 is attached to the opening 4. The sash frame 8 is semi-externally fitted, and is fixed by fixing attachment fins 9 provided on the outer periphery to the peripheral material of the opening 4 with wood screws. Further, a shoji 10 and a screen door 11 are slidably disposed inside the sash frame 8.

  Next, a window shutter 12 is attached separately from the sash frame 8 on the outdoor side of the sash frame 8. The window shutter 12 is obtained by integrally attaching a shutter box 12b to an upper part of a shutter frame 12a formed by rectangularly forming a shutter upper frame 13, a shutter lower frame 14, and a shutter vertical frame 15; Mounting fins 16 are formed on the outer periphery of the base of the box 12. The window shutter 12 is fixed by fixing the mounting fin 16 to the wall portion 1 around the sash frame 8 with a wood screw.

  A shutter take-up shaft 17 is provided inside the shutter box 12b, and a shutter 18 is taken up and stored on the take-up shaft 17. Further, a guide rail 20 of the shutter 18 is formed on the shutter vertical frame 15 of the shutter frame 12a, and a metal slat 21 constituting the shutter 18 is slidable.

  The shutter lower frame 14 has a drain hole 22 for draining rainwater. The shutter upper frame 13 projects horizontally from the wall 1 and extends to the front of the shutter 18. Therefore, a gap 26 is formed between the front end of the shutter upper frame 13 and the front plate 25 of the shutter box 12 so that the shutter 18 passes.

  Next, a communication port 23 that connects the shutter box 12b and the room is formed in the wall 1 of the building. An intake fan 24 is attached to the indoor side of the communication port 23. As a result, when the shutter 18 is housed inside the shutter box 12b, the shutter 18 closes the communication port 23 even if the intake fan 24 is rotated, so the intake efficiency is not very good. When the shutter 18 is down, the internal space of the shutter box 12b is opened, so that the intake efficiency by the intake fan 24 is sufficiently high.

  Therefore, according to the intake structure, when the shoji 10 of the sash frame 8 is closed in the summer night and the shutter 18 is lowered to the closed state, when the intake fan 24 is rotated, the air in the communication port 23 is Since it is sent to the indoor side, the space S between the shoji 10, shutter 18 and shoji 10 and the space in the shutter box 12b become negative pressure, and between these slats 21 above and below the shutter 18 in these spaces. The outside air enters through the gaps between them and the drain holes 22 of the shutter lower frame 14.

  The outside air that has entered the space S between the shutter 18 and the shoji 10 comes into contact with the slats 21 of the shutter 18, but at night, the ground surface radiates heat as infrared rays and cools by radiation cooling. The made slats 21 are also at a temperature lower than the outside air temperature. Since the shutter box 12b is also made of metal, the air in the shutter box 12b is also cooled. Therefore, the outside air that has entered the space between the shutter 18 and the shoji 10 is cooled by contact with the slats 21 and further cooled by contact with the shutter box 12b and then taken into the room through the communication port 23. It will be.

  Note that only the gap 26 between the bottom plate 19 and the front plate 25 of the shutter box 12 is formed in the upper portion of the space S between the shutter 18 and the shoji 10, so the air in the space is If the slat 21 is not touched, it cannot move into the shutter box 12.

  Thus, even if there is no special cooling device, the fresh outside air enters the room after the temperature decreases by touching the slats 21 and the shutter box 12b of the shutter 18, so it is not necessary to cool by the cooling device. Even if there is, the energy required for cooling may be small.

  In addition, since the shutter box 12b is formed separately from the sash frame 8, when the shutter 18 is retrofitted to the existing sash frame 8, a cool air intake structure can be formed at the same time.

  The sash and the shutter are not limited to the above-described form. For example, as shown in FIGS. 3 and 4, the sash upper frame 5 and the shutter upper frame 13, the sash lower frame 6 and the shutter lower frame 14, and the sash vertical frame 7 and the shutter vertical frame 15 are integrally formed. The shutter box 12B may be integrally formed on the top of the sash frame 12A, and the whole may be configured as a shutter sash. The integral shutter sash is fixed by fixing attachment fins 27 formed on the peripheral edge of the base to the wall 1.

  According to the above configuration, since the shutter box 12b and the sash frame 8 are integrally formed, a special construction is performed except that the communication port 23 is formed in the wall portion 1 and the intake fan 24 is attached to the indoor side. do not need.

  Further, when the intake fan 24 is rotated, the gap between the upper and lower slats 21 of the shutter 18 and the drain hole 22 of the shutter lower frame 14 are formed in the space S in the shoji 10, the shutter 18 and the space in the shutter box 12b. The outside air enters from. Then, the metal slat 21 cooled by the radiation cooling and the shutter box 12B are brought into contact with each other and cooled, and then taken into the room through the communication port 23. Thereby, even if it does not cool with a cooling device, the air lower in temperature than outside air is naturally supplied indoors.

The longitudinal cross-sectional view of the sash part of the building provided with the solar thermal heat collecting wall apparatus which concerns on this invention 1 is a cross-sectional view of the solar heat collecting wall device of FIG. Longitudinal sectional view of a sash portion of another embodiment Cross-sectional view of FIG.

Explanation of symbols

1 Wall 8 Sash Frame 10 Shoji 12b Shutter Box 18 Shutter 23 Communication Port 24 Intake Fan

Claims (3)

  A shutter box that houses a shutter with metal slats is placed at the top of the sash frame of the building, a communication port that connects the shutter box and the room is formed on the wall of the building, and the room is on the indoor side of the communication port. An air intake structure for a building, wherein an air intake fan is attached, and when the shutter and the shoji are in a closed state, outside air is taken into the room from between the shutter and the shoji by the air intake fan through a shutter box and a communication port.   2. The building air intake structure according to claim 1, wherein the shutter box is formed separately from the sash frame.   2. The building air intake structure according to claim 1, wherein the shutter box is formed integrally with the sash frame.

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