JPH029037Y2 - - Google Patents

Description

[Detailed description of the invention] [Date of the invention] Industrial application field The invention is a window for buildings, particularly suitable for office buildings. More specifically, it is a double-glazed window with two panes of glass, the outside and the outside, and the indoor air is exhausted to the outside through the inner space of the double-glazed window, which has an excellent effect of reducing heat load and improving the thermal environment.

Conventional Technology These days, many buildings are equipped with air conditioning equipment, which constantly controls the indoor temperature to a constant set temperature. Most office buildings are equipped with this type of air conditioning equipment. This air conditioning equipment controls the indoor temperature at an appropriate temperature for human activity in both summer and winter. Normally, indoor rooms are kept at a uniform set temperature depending on the season.

By the way, all buildings have windows.
This window is fitted with glass. As is well known, glass has poor insulation properties and low heat capacity. It also allows sunlight to easily pass through it. Therefore, the outside temperature of the window,
Easily affected by external weather conditions such as wind and sunlight.
For this reason, heat loss or heat gain from windows is greater than in general exterior walls. Further, since glass is easily affected by the outside temperature, the glass temperature is higher than the set room temperature in summer and lower in winter, and the living environment near the window deteriorates due to long wavelength radiant heat from the glass surface. When solar radiation transmitted through glass is added to this, the living environment becomes even worse. Therefore, even if the room temperature is kept constant by air conditioning equipment, the living environment near the window is worse than in areas far from the window. Considering this, taking measures such as lowering the set temperature in summer and raising the set temperature in winter increases the energy consumption of air conditioning. Therefore, various efforts have been made to reduce heat loss or heat gain from windows. The easiest thing to do is to install blinds on the windows. Furthermore, it is well known that improved versions of the windows themselves have appeared, such as double-glazed windows with two panes of glass installed inside and outside, and double-glazed windows with built-in blinds that have blinds installed in the space of the double-paned windows. Double-glazed windows with built-in blinds are the most efficient, and can reduce heat loss to about 1/4 of that of windows with blinds when temperatures are low in winter.

However, the installation of these blinds, double glazing,
Techniques such as double-glazed windows with built-in blinds were primarily aimed at reducing heat loss or heat gain, not at improving the thermal environment near windows. Therefore, for example, when there is solar radiation, the temperature of the indoor glass of blinds installed on the indoor side or double-glazed windows with built-in blinds can rise by more than 10 degrees Celsius than room temperature in extreme cases. residents feel extremely hot. If the long-wavelength radiation environment near windows can be improved, room temperature settings can be relaxed, resulting in significant energy savings. It is said that if the room temperature setting is lowered by 1 degree Celsius, air conditioning energy consumption can be saved by 10%.

Taking these into consideration, the applicant proposed a double-glazed window in which indoor air is exhausted to the outside through the space between the inner and outer glass (Japanese Patent Application No. 57-
220330). According to this, since indoor air is brought into contact with both surfaces of the glass on the indoor side, the temperature of this glass can be brought almost to the indoor temperature. Therefore, long-wavelength radiation from the window member is relaxed, and the thermal environment near the window is improved. Furthermore, the air passing between the windows collects and eliminates the heat just before it enters the room, such as solar heat absorbed by the blinds, significantly reducing the heat load.

Furthermore, in buildings such as buildings in which a large number of people live, the amount of ventilation required per person is regulated, and the conditioned air inside the room is wasted by some means to be discharged outside. Utilizing this double window space,
Windows that exhaust indoor air to the outside through a space (hereinafter referred to as ventilation windows) use the window to exhaust air, so they can satisfy this ventilation amount regulation, and they can also be used to utilize their exhaust function. This is extremely superior because it reduces the heat load from the window and improves the thermal environment near the window, and it also helps reduce the need for exhaust duct equipment.

Problems to be Solved by the Invention When the above-mentioned ventilation windows are actually used in buildings, rain closure becomes a problem. This is because there is an exhaust port that is open to the outdoors, which leads to an inlet in the room, ultimately forming a flow path for air from the outdoors to the room. When it rains, especially when it rains with wind, rainwater droplets enter through this channel. Although it is possible to close the exhaust port manually during rain, it would not function as a ventilation window.

Therefore, the purpose of the present invention is to provide a window that can keep rain out well, always have the effect of a ventilation window, reduce the heat load from the window, and maintain a good thermal environment near the window. That's true.

[Structure of the invention] Means for solving the problem This invention is a double-glazed window in which two panes of glass are attached to a frame member provided in a window opening, an inner and an outer pane, and a space is provided between the two panes to allow indoor air to flow through the window. An inflow port and an exhaust port for passing through the space and exhausting the air to the outside are formed in the frame member, and a downward flow path is formed on the outside of the frame member to allow air to flow downwardly for at least a certain section above the exhaust port. This feature is characterized in that a water droplet adsorbent is attached to the wall surface constituting the downward flow path.

Air blowers for exhaust may be installed either above or below the window, and the air blowing force may be used, or an air conditioner may be used to take in outside air and air condition the room, which increases the indoor pressure. It may also be performed based on the difference between the air pressure and the outside air pressure.

The water drop adsorbent can be anything that has water absorption properties, such as foamed phenol with open cells, paper, and other moisture absorbing and desorbing materials used as building materials to treat dew condensation on walls (for example, Sequilate, a product of Chatani Sangyo Co., Ltd.). can be used.

Function: Indoor air can be exhausted through the space of the double-glazed window, and during the exhaust, the indoor air comes into contact with the back side of the glass on the indoor side, so that the temperature approaches the indoor temperature. In addition, the air passing between the windows collects and eliminates the heat that was just before it entered the room. Therefore,
It is possible to improve the thermal environment near the window, reduce heat loss in winter, and reduce heat gain in summer.

In addition, in the present invention, since the exhaust port has a certain section above the exhaust port as a downward flow path through which the exhausted air flows downward, rainwater will not directly infiltrate into the interior even if the exhaust port is always open. In addition, there is a risk that some rainwater droplets may enter on the airflow from outside, but water droplets are attached to the walls that make up the downward flow path, so this will absorb them and prevent them from penetrating into the interior. will disappear.

Embodiment The embodiment shown in FIG. 1 is an example in which an inlet 1 is formed at the lower end of the window, an exhaust port 2 is formed at the upper end, and exhaust is performed by a blower 3 provided at the uppermost end of the window. . The above blower 3 is relatively small and has an air volume of approximately 2 when fully opened.
A once-through fan with a flow rate of approximately m ³ /min is used. The amount of ventilation is approximately ^50m3 per hour per window. 3a is a motor for driving the circulation fan 3. The window of this embodiment is a double window with a built-in blind, in which a space 6 is formed between the glass 4 on the indoor side and the glass 5 on the outdoor side, and a blind 7 is installed in this space, but the blind is omitted. It's okay. However, if blinds are omitted, blinds may be installed on the outdoor portion of the window, a light reflective film may be pasted on the surface of the outdoor glass 5, or the outdoor glass 5 itself may be made of heat-reflecting glass or heat-absorbing glass. It is necessary to use glass to prevent solar heat rays from penetrating the glass and entering the room. An upper frame 8, a lower frame 9, and a vertical frame 10 are fixed to a wall opening (not shown), and an auxiliary frame member 11 is attached to the upper frame 8. In addition, in this specification, these frames, auxiliary frame members, and frames 12 and 13 into which glasses 4 and 5 described below are fitted are collectively referred to as a frame member. The glasses 4 and 5 are fitted into frames 12 and 13, respectively, to form a shoji screen and installed between the auxiliary frame material 11 and the lower frame 9. In this embodiment, these shoji and blinds are integrally rotatable around a rotating shaft 14, and furthermore, the shoji on the indoor side can be opened and closed on the indoor side using a hinge 15 provided on the stile 13. . Since the structure of these shoji themselves and the mechanism for opening and closing them are conventionally well known, a detailed explanation will be omitted. In this embodiment, the inflow port 1 is formed with a space between the lower frame 9 and the stile 13 on the indoor side.
A hole may be formed in 3.

The auxiliary frame material 11 has a side wall 16 on the indoor side, an outer wall 17 on the outdoor side, and a partition wall 18 provided in the middle,
The interior is partitioned into a downward flow path 19 and an upward flow path 20 by the partition wall 18 . Downward flow path 19
is outside the room. The blower is disposed at the upper end of the upward passage 20, with its intake part facing the upward passage 20 and its blowing part facing the hole 21 formed in the partition wall 18. The upward flow path 20 is communicated with the space 6, and the air blower 3 is configured to send indoor air from the inlet 1 through the space 6, the upward flow path 20, and the hole 21 into the downward flow path 19. The bottom part 1 connected to the exhaust port 2 of this downward flow path 19
9a is inclined to facilitate drainage of rainwater that has entered through the exhaust port 2 and to reduce exhaust resistance. As mentioned above, the downward flow path 19 is connected to the outer wall 17.
and a partition wall 18, and a water drop adsorbing material 22 made of foamed phenolic resin, paper, or other porous water-absorbing material is pasted on these walls. The example shown in the figure is the downward flow path 1.
Since a sound muffling body 25, which will be described later, is attached to 9, a water drop adsorbing material 22 is also applied to its surface.

Note that the hole 21 is formed to have substantially the same size as the blowout size of the blower 3. This is to minimize the area into which raindrops and external noise can penetrate. In order to reduce the air resistance of air blowing by the blower 3 from this hole 21, it is desirable to provide an arcuate guide plate 21a at the upper end of the downward flow path 19.

The exhaust port 2 is formed at the lower end of the outer wall 17 as described above.
A gutter 23 is formed at a location where the trough 23 is formed.

Further, in this embodiment, a check valve 24 as a closing means is attached to the downward flow path 19 side of the outer wall 17 so as to be swingable by a hinge. This check valve 24 is a plate-shaped member having a width approximately equal to the entire width of the downward flow path, and one side is rotatably attached to the outer wall 17 by a hinge, and the other side is connected to the downward flow path 1.
The sound absorber 25 protrudes into the interior of the partition wall 9 and, when swung, comes into contact with the bottom surface 26 of the muffler 25 attached to the partition wall 18, thereby closing the downward flow path 19. This bottom surface 26 serves as a valve holder. This check valve 24 always keeps the downward flow path open in the state shown in the figure, and swings and closes due to the flow of air flowing back from the exhaust port 2. In order to efficiently apply the air flowing back from the exhaust port 2 to the check valve 24 and to cause it to swing reliably, a protrusion 27 as a wind direction changing member is formed at the root of the partition wall 18 of the downward flow path 19, near the exhaust port. I'm letting you do it.

The muffler 25 is a box-shaped object attached to the partition wall, and has many holes in the surface facing the outer wall 17 to reduce noise from the blower 3 and external noise entering from the exhaust port by using resonance. belongs to.
The same muffler 25 is also attached to the upward flow path 20. Although the sound deadening body 25 in this embodiment has a simple box shape, it goes without saying that a sound absorbing material such as glass wool or rock wool may be housed inside. Note that the muffler 25 facing the downward flow path 19
is formed so as to have good sound damping properties when the water droplet absorbing material 22 is attached.

Since this embodiment has the above configuration, the check valve 24 is normally open, and when the blower 3 is driven, indoor air is passed from the inlet 1 to the space 6 to the upward flow path 2.
0, exhaust to the outside from the exhaust port 2 through the downward flow path 19. At this time, the indoor air passes through the space 6 and comes into contact with the back surface of the glass 4, so this glass 4 approaches the temperature of the indoor air, reducing the radiant heat from the indoor glass in the summer and during sunlight, and the cold radiation in the winter. , it is possible to improve the thermal environment.
That is, it can function as a ventilation window.

Since the exhaust port 2 is always open, when it rains,
There is a possibility that rain from the sky hits the exhaust port obliquely and enters the inside, but since the upper part of the exhaust port 2 is a downward flow path 19, there is little chance that anything will get inside. Although some of the water droplets enter due to the airflow from the exhaust port 2, the water droplets that have entered are absorbed by the water droplet absorbing material 22 stretched on the wall surface of the downward flow path 19, and do not penetrate into the interior. This water drop adsorbing material 22 absorbs water droplets during rain, but on cloudy or sunny days it is exposed to air flow from indoors and is therefore dried. Therefore, when it rains, water droplets can be adsorbed again.

In the case of this embodiment, when the outdoor pressure becomes high and the airflow becomes intense, the check valve 24 closes and the downward flow path 19 is closed, so that the amount of water droplets that enter the interior becomes extremely small. Since the air flowing back from the exhaust port 2 is directed toward the check valve 24 by the protrusion 27, the check valve 24 closes easily and closes quickly, so that only a small amount of water droplets enter the inside. Furthermore, since the downward flow path 19 is closed by the check valve 24 and there is no airflow, the air will not infiltrate into the interior. In addition, the outer wall 17
Since the water droplets that fall down the water are collected in the gutter 23, they do not fall into the exhaust port and get carried by the airflow as they fall, and the water droplets that fall through the water droplets are collected in the gutter 23.
Very few water droplets reach 9. Furthermore, since the bottom portion 19a of the downward flow path 19 is inclined as described above, even a small amount of water droplets that have entered the air can be easily drained from the exhaust port 2 during exhaustion.

FIG. 3A shows another embodiment, in which the inlet 28 is placed at the top, the exhaust port 29 is placed at the bottom, and the blower 3 is provided at the inlet. Therefore, the downward flow path 30 is connected to the lower frame 31.
It is formed on the outside of the room. The function and effect as a ventilation window are the same as those described above. As in the previous example, a water droplet adsorbent 22 is applied to the wall surface constituting the downward flow path.

In this embodiment, the valve receiver 33 of the check valve 32 has a triangular cross section, and is attached so that its bottom surface is substantially perpendicular to the partition wall 34 and its slope is inclined from the partition wall 34. This is to use the bottom surface as a raindrop blocking material when the air flows backward from the exhaust port, and to reduce the resistance to the normal air flow caused by the normal air blower 3 on the sloped surface. Raindrop blocking material 35 having the same shape as this valve receiver 33
is also attached to the outer wall 36. Further, the projection 37 formed at the upper end of the partition wall 34 also constitutes a raindrop blocking material. That is, in this embodiment, since the valve receiver 33 and the protrusions 35 and 37 constitute the raindrop blocking material, the raindrop blocking material is provided in a zigzag pattern within the downward flow path 30. Therefore, as described above, when the outside pressure increases during rain and rainwater attempts to flow back from the exhaust port 2, the check valve 32 swings to close the downward flow path 30 and prevent rainwater from entering the interior. Water droplets that have entered on the airflow are temporarily transferred to the valve receiver 33.
It hits the bottom and falls, preventing it from rising. Even a small amount of water remaining is absorbed by the water droplet adsorbent 22 and further blocked by the raindrop blocking material 35. Even if there is any remaining water droplet, it is absorbed again by the water droplet adsorbent 22 stretched on the partition wall 34 and removed from the protrusions. 37, so there is almost no chance of rainwater getting inside.

In the embodiment shown in FIG. 3, the shoji 38 on the indoor side can be opened and closed with a hinge 39, and the shoji 40 on the outdoor side is completely fitted, but this poses no particular problem. In other words, the present invention has nothing to do with the shape of the shoji.

FIG. 3B is a sectional view of different examples of the valve receiver 33 and the raindrop blocking material 35, which have been modified to further reduce the resistance to the flow of exhausted air.

FIG. 4 relates to yet another embodiment, in which a raindrop blocking material 41 different from that shown in FIG. 3 is used in the downward flow path 19. As shown in the figure, a partition wall 18 and an outer wall 17 forming a downward flow path 19
Protrusions 41 protruding perpendicularly are attached alternately to the opposing surfaces of. The water drop adsorbent 22 is stretched between these protrusions 41. Its action is not particularly different from the one described above.

Figure 5 shows the blower 3 with its mounting position and direction changed, with its blowing part facing downward directly into the downward flow path 19, reducing the pressure loss caused by changing the direction of the air immediately after blowing. This improves the efficiency of the blower.
The other parts are the same as those in FIG.

In each of the above embodiments, indoor air is exhausted by a blower, but an air conditioner is installed.
If the air conditioner takes in outside air to condition the indoor air, exhaust can also be performed by using the pressure difference between the indoor and outdoor areas generated by the air blowing pressure of the air conditioner, without using a blower.

[Effects of the invention] As described above, this invention exhausts indoor air to the outside through the space of the double-glazed window, so the glass on the indoor side can be brought close to the temperature of the indoor air, and the indoor air It is possible to improve the thermal environment near the window.

In addition, since a downward flow path is provided in a certain section above the exhaust port so that the air flows downward due to exhaust air, rainwater from the exhaust port must rise and there is no risk of it directly infiltrating into the interior.

Furthermore, since water droplet absorbing material is attached to the wall that makes up the downward flow path, water droplets that enter the downward flow path on the airflow are adsorbed by this material, thereby preventing rainwater from entering the interior. .

[Brief explanation of drawings]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a front view of the window as seen from outside, Fig. 3A is a sectional view of another embodiment, and Fig. 3B is a sectional view of another embodiment of the window. FIGS. 4 and 5 are side views of the embodiment, and sectional views of auxiliary frame members of different embodiments, respectively. 1: Inlet, 2: Exhaust port, 3: Blower, 6: Space, 7: Blind, 8: Upper frame, 9: Lower frame, 1
1: Auxiliary member, 17: Outer wall, 19: Downward passage.

Claims (1)

[Scope of utility model registration request] In a double-glazed window in which two pieces of glass, an inner and an outer glass, are attached to a frame member provided in a window opening and a space is provided between both glasses, an inlet and an inlet for allowing indoor air to pass through the space and exhaust to the outdoors are provided. an exhaust port is formed in the frame member, a downward flow path is formed on the outdoor side of the frame member through which the air exhausted from at least a certain section above the exhaust port flows downward, and water droplets are adsorbed on the wall surface constituting the downward flow path. A window with an exhaust function characterized by having a material pasted on it.