JPH029039Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] Industrial application field The present invention is a window for a building, particularly a window suitable for an office building. More specifically, a blower is installed inside the double-panel window, and indoor air is exhausted to the outside through the space inside the double-pane 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 sunlight, the temperature of the indoor glass of blinds installed on the indoor side or double-glazed windows with built-in blinds may drop below room temperature.
The temperature will rise by more than 10 degrees Celsius, and residents living near windows will feel extremely hot due to the long-wavelength radiation. 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 ventilate, so they can satisfy this ventilation amount regulation, and can also be used to utilize their exhaust function. This is extremely superior because it reduces the heat load from windows and improves the thermal environment near windows, and it also helps reduce the need for air conditioning duct equipment.

Problems that the invention aims to solve: The ventilation window mentioned above has an exhaust port that is always open, so there is a risk of rainwater getting in through it, and it also has a blower inside, which is operated, which generates noise. cannot be prevented. If the internal fan is unbalanced, vibrations may occur during operation, which may be transmitted to the frame members, glass, etc., resulting in loud noise. Needless to say, it is undesirable for such noise to be generated from the windows of a building where people live, such as office windows.

Therefore, an object of the present invention is to provide a window that has the effect of a ventilation window, maintains a good thermal environment near the window, prevents rainwater from entering the room, and reduces noise caused by the blower. It is to be.

[Structure of the invention] Means for solving the problem The present invention provides a partition wall having an opening at the upper end in the part of the frame member of the ventilation window where the exhaust port is provided, and connects that part to the space. The air blower is partitioned into an upward flow path that communicates with the flow path and a downward flow path that connects downward from an opening provided at the upper end of the partition wall to an exhaust port, and furthermore, the blower is placed at the end of the upward flow path, and its left and right lower surfaces are attached to support fittings via elastic materials. The air blower is supported by an elastic material, and an elastic material is interposed between the periphery of the opening of the partition wall and the periphery of the blower outlet, as well as between the indoor wall surface constituting the upward flow path and the blower. It is something.

Function Since the window is a ventilation window, the air inside the room is exhausted to the outside through the space formed between the two pieces of glass, inside and outside, using a blower, and can be exhausted through the window itself. Furthermore, since the air inside the room passes through the space of the double-glazed window during exhaust, both sides of the glass on the indoor side come into contact with the air inside the room, and the temperature approaches the room temperature.
Therefore, heat radiation and cold radiation from the glass are eliminated, and the thermal environment near the window is improved.

Further, the part of the frame member where the exhaust port is provided is partitioned by a partition wall having an opening at the upper end into an upward flow path leading to the space and a downward flow path extending downward from the opening to the exhaust port, as described above. Since the exhaust port is arranged at the lower end of the downward flow path, the downward flow path is oriented in the opposite direction to the direction in which rainwater enters from the exhaust port. Therefore, even if the exhaust port is always open, it is possible to prevent rainwater from entering.

Furthermore, the present invention has the left and right lower surfaces of the blower supported by supporting metal fittings via elastic materials, and elastic materials are interposed between the opening of the partition wall and the blower, as well as between the indoor side wall and the blower. Therefore, it is fixed by pressing with elastic material without using any mechanical fixing means such as screws, which reduces the transmission of the vibration of the blower to the frame member, and reduces the noise caused by the vibration of the blower. It is possible to reduce the amount of light transmitted into the room.

Embodiment The embodiment shown in FIG. 1 is an example in which the inlet 1 is formed at the lower end of the window, the exhaust port 2 is formed at the upper end, and the blower 3 is provided at the uppermost end of the window. The blower 3 is a relatively small once-through fan with a fully open air volume of approximately 2 m ³ /min. The exhaust volume is approximately ^50m3 per hour per window. 3a is a motor for driving this blower 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, it will not be possible to prevent heat from entering through the glass, such as solar heat rays, so it is necessary to prevent that heat from entering by installing blinds on the outdoor side of the window, etc. 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 this specification, these frames, auxiliary frame members, frames 12 and 13 into which glasses 4 and 5, which will be described later, are fitted, are referred to as frame members. The glasses 4 and 5 are frames 12 and 13, respectively.
The auxiliary frame material 11 and the lower frame 9 are fitted into a shoji and made into a shoji.
be installed between the In this embodiment, these shoji and blinds are integrally connected to the rotating shaft 14.
The shoji on the indoor side can be opened and closed indoors using hinges 15 provided on the stile 13. As for the structure of these shoji themselves and the mechanism for opening and closing them, any conventionally known structure can be used. In this embodiment, the inlet 1 is formed with a space between the lower frame 9 and the stile 13 on the indoor side, and is communicated with the space 6. This suction port may be formed by forming a hole in the lower frame 9 itself or the lower stile 13 itself.

The auxiliary frame material 11 has an indoor side wall 16, an outdoor side wall 17, and a partition wall 18 provided in the middle thereof,
This partition wall 18 partitions the inside into a downward flow path 19 and an upward flow path 20. Downward flow path 19
is outside the room. The exhaust port 2 is a downward flow path 19
located at the lower end of A bottom portion 19a of the downward passage 19 connected to the exhaust port 2 is inclined toward the exhaust port 2 to facilitate drainage of water droplets that have entered. The blower 3 is disposed at the upper end of the upward flow path 20, with its intake portion facing the upward flow path 20, and its outlet aligned with the opening 21 formed in the partition wall 18. In addition,
The opening 21 is formed to have only the width of the outlet of the blower 3. Details of how to attach this blower to the upper end of the upward flow path 20 will be described later. The upward flow path 20 is communicated with the space 6, and the blower 3 is configured to send indoor air from the suction port 1 through the space 6, the upward flow path 20, and from the opening 21 to the downward flow path 19.

A gutter 22 is formed above the exhaust port 2 at the lower end of the side wall 17 constituting the downward flow path 19 to prevent water droplets that fall down this wall from entering on the backflowing air when the outdoor pressure increases. ing.

The blower 3 has the lower surfaces of the left and right end plates 3b (FIG. 3) supported by a support fitting 23 attached to the partition wall 18 via an elastic material 24, and the blower 3 is connected to the periphery of the opening 21 of the partition wall 18. An elastic material 25 is placed between the periphery of the air outlet and the back surface of the blower 3 and the side wall 16.
It is attached to the upper end of the upward flow path with an elastic material 26 sandwiched therebetween. In this embodiment, an elastic material 27 is further sandwiched between the upper surface of both ends 3b of the blower 3 and the upper frame 8, but this elastic material 27 may be omitted. Reference numeral 25a denotes a patch plate attached to the blower 3, in which an opening having the same size as the outlet of the blower is formed.

The support fitting 23 is simply placed on an elastic material and is not fixed at all with screws or the like. As shown in FIG. 4, the air blower 3 having an elastic material 25 with an opening cut out around the air outlet is pressed against the partition wall 18 and supported by the support fittings 23, and then the side wall 16 is attached. Press down to stabilize the blower 3. It is desirable that the elastic members 25 and 26 be adhered to the casing of the blower in advance. As the elastic material, a relatively soft material such as sponge-like rubber or polyvinyl chloride foam material is used.

In this embodiment, in order to further reduce noise, sound absorbers 28 and 29 are provided in the upward flow path 20 and the downward flow path 19.
is installed. The sound absorbers 28 and 29 are box bodies having a large number of holes on both surfaces. In other words, noise is absorbed by resonance between the hole and the air layer behind it. Its resonant frequency is the blower 3
It is desirable to match the frequency with the most noise energy. The size and spacing of the holes and the depth of the air layer are appropriately selected to accommodate the noise of the blower 3. Slits may be formed instead of holes. The sound absorbing body is a box with many holes or slits, but the sound absorbing effect can be enhanced by storing sound absorbing material such as glass wool or rock wool inside, and using both sound absorption by resonance and sound absorption by the sound absorbing material. Can be done.

Further, in this embodiment, in order to more reliably prevent rainwater from entering from the exhaust port 2, a check valve 3 as a closing means is provided above the exhaust port 2 in the downward flow path 19 of the side wall 17.
0 is attached to be swingable by a hinge 31 so that when it swings, its tip comes into contact with the bottom of the sound absorber 29 and closes the downward flow path 19. This check valve 30 is designed to keep the downward flow path open at all times in the state shown in the figure, and is swung by the flow of air flowing backward from the exhaust port 2 to close the downward flow path and prevent rainwater from entering. It is. In order to efficiently apply the air flowing back from the exhaust port 2 to the check valve 30 and swing it reliably, a protrusion 32 as a wind direction changing material is formed at the root of the partition wall 18 and near the exhaust port.

Since this embodiment has the above configuration, the check valve 30 is normally open, and when the blower 3 is driven, indoor air is pumped from the suction port 1 to the space 6 and 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 the glass 4 approaches the temperature of the air, eliminating heat radiation in the summer and cold radiation in the winter, improving the thermal environment near the window. can be achieved. That is, it can function as a ventilation window.

When the blower 3 is operated, vibrations may occur due to unbalance of the fan. Since the elastic members 25 and 26 are provided and pressed down, the vibrations can be absorbed by these elastic members and can be prevented from being transmitted to the frame member, glass, etc. Therefore, generation of noise due to these vibrations can be prevented.

Noises other than those caused by vibrations during operation are also generated, but these are absorbed by the muffler 28 provided in the upward flow path 20, reducing the amount of noise that reaches the interior of the room. Similarly, the noise passing through the downward flow path 19 is absorbed by the sound absorber 29, reducing the amount of noise to the outside. Furthermore, since external noise is absorbed by the sound absorbers 28 and 29, only a small amount of it reaches the room.

[Effects of the invention] As described above, this invention uses a blower to exhaust 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. Since the air passing between the windows collects and eliminates the heat just before it enters the room, such as the heat absorbed by the blinds, it is possible to reduce the heat load from the window and improve the indoor thermal environment near the window. .

In addition, the blower is supported by an elastic material on the frame member, and the front and rear parts are similarly pressed down and fixed with elastic materials, so vibrations generated during operation are absorbed by these elastic materials and transmitted to the frame member, glass, etc. never be done. Therefore, the generation of noise due to vibration can be significantly reduced.

Furthermore, a downward flow path is formed, and the air flow is directed downward in the downward flow path to be exhausted from the exhaust port, so the rainwater enters the room in the opposite direction to the direction of rainwater entering from the exhaust port. can prevent infiltration.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is a front view of the window as seen from outside, Fig. 3 is a perspective view of an embodiment of the blower seen from behind, and Fig. 4 is the blower. front view. 1: Inlet, 2: Exhaust port, 3: Blower, 6: Space, 7: Blind, 8: Upper frame, 9: Lower frame, 1
0: Vertical frame, 19: Downward channel, 20: Upward channel, 23: Supporting metal fittings, 24, 25, 26: Elastic material.

Claims (1)

[Scope of utility model registration request] Two pieces of glass, one inside and one outside, are attached to a frame member provided at the window opening, a space is provided between both glasses, an intake port is provided on the indoor side of the frame member, an exhaust port is provided on the outdoor side of the frame member, and an air blower is installed inside the frame member. In a window having an exhaust function of exhausting indoor air through the space from the intake port to the exhaust port using the blower, the part of the frame member where the exhaust port is provided is inside a partition having an opening at the upper end. A wall is provided to partition the upward flow path leading to the space and the downward flow path extending downward from the opening at the upper end of the partition wall to the exhaust port. is supported by a support fitting via an elastic material,
and an exhaust function characterized in that a heat insulating material is interposed between the periphery of the opening of the partition wall and the periphery of the blower outlet, and between the indoor wall forming the upward flow path and the blower and is pressed and fixed thereto. window with.