JP2007032158A - Curtain wall window ventilation structure - Google Patents

Abstract

The cross-sectional shape of a horizontal frame is not structurally and designally restricted, and the difference in height between an outdoor air inlet formed on the outdoor side and a ventilation port formed on the indoor side is greatly increased. Provided is a curtain wall window ventilation structure for double skin that can reliably prevent the intrusion of rainwater and the like.
A a window portion between the outdoor side glass G _O and the indoor side glass G _I and the double structure, the curtain wall structure having the air layer 7 between the two glasses, glass G which are adjacent in the lateral direction, between G A vertical space P is defined inside the vertical walls 2 and 3 arranged in the vertical direction, and an outside air introduction port 16a communicating with the external space is formed outside the room defining the vertical space P, and the outside air introduction port 16a is formed. Forming an indoor ventilation port 2e (3e) communicating with the indoor space at a higher position, and opening or closing the communication path extending from the indoor ventilation port 2e (3e) to the room, and the indoor ventilation port A flow path switching device 20 that opens or closes the communication path from 2e (3e) to the air layer 7 is provided.
[Selection] Figure 6

Description

  The present invention relates to a window wall ventilation structure of a curtain wall that allows introduction of outside air while reliably preventing intrusion of rainwater or the like in a window portion of a sash, a curtain wall, or the like, and also supports a double skin.

  2. Description of the Related Art Conventionally, a structure in which a ventilator is provided in a window portion of a curtain wall to introduce outside air and ventilate is known.

  For example, as shown in Patent Document 1 below, in a curtain wall having a double window structure composed of an indoor shoji fitted with transparent glass and an outdoor shoji fitted with transparent glass, the frame surrounding the double window Among them, the inside of the lower frame and the upper frame is electrically connected to the inner part of the double window, and the lower frame and the upper frame are provided with an indoor vent and an outdoor vent, and inside the lower frame and the upper frame, There is disclosed a curtain wall window structure including a switching door that selectively closes one of the indoor vent and the outdoor vent and connects the other to the inner portion of the double window.

  Further, in Patent Document 2 below, an intake passage that communicates the atmosphere with the room is formed in a slanted portion at the lower part of the fitting window in a slanted shape with the indoor side positioned higher than the atmospheric side, and an arc-shaped cross section on the indoor side with the intake passage A curtain wall building ventilator is disclosed in which an opening / closing member is pivotally mounted so as to open and close an intake passage, and a handle protrudes from the opening / closing member into a room.

  In the following Patent Document 3, the lower frame of the upper shoji and the upper frame of the lower shoji are configured to have a space part surrounded by these, and a predetermined opening ratio is provided on the outdoor side and the indoor side wall part surrounding the space part. Has disclosed an sash ventilation device in which an opening is provided and rainwater is not directly blown into the indoor opening.

  Further, in Patent Document 4 below, as shown in FIG. 15, a ventilation path for introducing outside air between the outer wall panel constituting the curtain wall wall surface and the horizontal frame 61 of the sash frame 60 adjacent to the height direction is provided. In the formed ventilation structure, a drainer 62 composed of a prospective piece 62a and a finding piece 62b having an expected width larger than the expected width of the horizontal frame 61 is joined to the horizontal frame 61 at a distance from the horizontal frame. Further, there is disclosed a curtain wall ventilation structure in which a ventilation path is formed between the horizontal frame 61 and the drainer 62 so as to communicate from the outside to the room.

  On the other hand, in recent years, various curtain wall structures called so-called double skins have been proposed that reduce the heat load caused by solar heat inserted from a glass window and save energy. This double skin has a structure in which the window part is a double structure of the outdoor side glass and the indoor side glass, and an air layer is provided in the middle, and a flow path switching device (opening / closing device, communication) is provided above and below the window part. For example, outdoor air is introduced into the air layer from the lower side in the summer and exhausted outside from the upper side in the summer, and indoor air is introduced into the air layer from the lower side in the winter. In the middle period, outdoor air can be taken into the room so that energy can be saved efficiently every season.

  Specifically, in Patent Document 5 below, a frame portion made of an upper horizontal frame material for a window portion, a lower horizontal frame material for a window portion, and a vertical frame material for left and right window portions, and attached to the outside of the frame portion closer to the outdoor side. A room-side translucent body attached to the outdoor side translucent body and the indoor side, and a light-shielding body that is provided in an air layer between the outdoor-side translucent body and the indoor-side translucent body so as to be translucent. The upper horizontal frame member for the window has an upper outlet opening at the top of the air layer, an exhaust opening opened to the outside air, and an upper opening and closing device for communicating and blocking the upper outlet and the exhaust opening, The lower horizontal frame material is a lower inlet opening at the lower part of the air layer, an outside air inlet that communicates the lower inlet with the outside air, and a lower opening and closing device that communicates and blocks the lower inlet and the outside air inlet. A window portion of a curtain wall having the following is disclosed.

Further, in the following Patent Document 6, the partition material that forms the outer wall portion and the window portion by partitioning the indoor space of the building from the outside is arranged in an inner and outer double space, and an air layer is provided between these partition materials. In the double skin of the defined building, two upper and lower outdoor vents provided in communication with the outside of the building above and below the air layer, respectively, and the indoor space of the building above and below the air layer, respectively. The upper and lower indoor vents provided in communication and the upper and lower portions of the air layer are respectively selected, and either the outdoor vent or the indoor vent is selected at the upper and lower portions of the air layer. A double-skin structure of a building is disclosed that includes two upper and lower communication switching mechanisms for communicating with the air layer.
JP 2003-314154 A Japanese Utility Model Publication No. 60-84617 Japanese Utility Model Publication No. 52-34550 Japanese Patent Laid-Open No. 9-165852 JP 2000-274152 A JP 2002-256737 A

  However, the ventilator described in the above-mentioned Patent Documents 1 and 2 forms a ventilation path in the indoor / outdoor direction inside the horizontal frame such as the lower frame or the upper frame part, and the switching door or the door that opens and closes the ventilation path. Although an opening / closing material is provided, the design of the window portion is greatly restricted because it is necessary to increase the size of the lower frame or the upper frame. In addition, since it is difficult to make a large positional head difference (height difference) between the outside air inlet formed on the outdoor side and the ventilation port formed on the indoor side, there is a problem that rainwater is likely to enter the indoor side. was there.

  The ventilator described in Patent Document 3 is also the same, and it is necessary to secure a large invisible finding width, which greatly restricts the design design. Further, in this document, a baffle wall is provided so that rainwater is not directly introduced, but it is difficult to take a large difference in height between the outside air inlet formed on the outdoor side and the ventilation port formed on the indoor side. Therefore, there is a problem that rainwater may enter the room.

  On the other hand, in the ventilation structure described in Patent Document 4, a drainer 62 that prevents transmission of rainwater between the sash frame 60 and the outer wall panel is joined to the horizontal frame 61 of the sash frame 60, and the drainer 62 is used. Since a ventilation path that communicates from the outside to the room is formed, there is no need to form a ventilation opening in the horizontal frame 61, and there is an advantage that there are fewer restrictions on the design of the design than in Patent Documents 1 to 3 above. However, in order to reliably prevent the intrusion of rainwater, it is necessary to make a large difference in level between the outside air inlet formed on the outdoor side and the ventilation port formed on the indoor side. The height dimension must be increased to some extent, and the height dimension of the horizontal frame 61 must be increased to the same extent in order to hide the finding piece 62.

  On the other hand, the curtain wall structure according to the double skin incorporates a channel switching device (opening / closing device, communication switching mechanism, switching door) inside the upper frame and the lower frame that support the outdoor glass and the indoor glass. It is a structure, and the design design of the upper frame and the lower frame is greatly restricted. Further, there is a problem that the structure of the flow path switching device is large.

  Therefore, the main problem of the present invention is that the cross-sectional shape of the horizontal frame is not structurally and designally restricted, and the height difference between the outside air inlet formed on the outdoor side and the ventilation port formed on the indoor side is It is an object of the present invention to provide a curtain wall window ventilation structure corresponding to a double skin that can reliably prevent intrusion of rainwater and the like.

In order to solve the above-mentioned problem, as the present invention according to claim 1, in the curtain wall structure in which the window portion has a double structure with the outdoor side glass and the indoor side glass, and an air layer is provided between the two glasses.
A vertical space is defined inside the vertical wall disposed between the glasses adjacent in the left-right direction, an outside air introduction port communicating with the external space is formed outside the room defining the vertical space, and the outside air An indoor side ventilation port communicating with the indoor space is formed at a position higher than the introduction port, and a communication path extending from the indoor side ventilation port to the room is opened or closed, and the indoor side ventilation port reaches the air layer. Provided is a curtain wall window ventilation structure characterized in that a flow path switching device for opening or closing a communication path is provided.

  The ventilation structure according to the first aspect of the present invention uses a vertical vertical space disposed between glasses adjacent to each other in the horizontal direction as a ventilation path. Specifically, a vertical space is defined in the vertical interior, an outside air introduction port communicating with the external space is formed outside the room defining the vertical space, and the position is higher than the outside air introduction port. Forming an indoor ventilation port communicating with the indoor space, opening or closing a communication path extending from the indoor ventilation port to the room, and opening or closing a communication path extending from the indoor ventilation port to the air layer. A flow path switching device is provided.

  In the present invention, the horizontal frame member is not subject to any structural and design restrictions by forming a ventilation flow path using a vertical, continuous internal space arranged as a necessary structural member. It becomes possible to design the window part freely as well as not receiving. In addition, since a vertical vertical space is used, it is possible to ensure a sufficient height difference between the outside air inlet and the indoor side ventilation port, so that intrusion of rainwater can be reliably prevented. .

  Furthermore, in addition to the ventilation mode in which the outside air is taken into the room, the introduction of the outside air into the air layer of the double skin makes it possible to achieve efficient energy saving such as reduction of the cooling load.

  As the present invention according to claim 2, the inside of the vertical space is partitioned at an appropriate interval in the height direction, and the outside air inlet is formed at a lower position in each partitioned vertical space portion, and the upper side The curtain wall window ventilation structure according to claim 1, wherein the indoor ventilation opening is formed at a position.

  The invention according to claim 2 divides the vertical space in the vertical interior at an appropriate interval, and in each of the partitioned vertical space portions, the outside air inlet is formed at a lower position, and the vertical space is at the upper position. An indoor ventilation opening is formed, and the ventilation capacity can be increased by forming a ventilation path for each vertical space partitioned by the partition member.

  According to a third aspect of the present invention, the partition member that divides the vertical space in the height direction at an appropriate interval is disposed so as to be inclined downward toward the outdoor side, and the outside air inlet is the partition member A window wall ventilation structure for a curtain wall according to claim 2, wherein the window wall ventilation structure is formed immediately above a position where the wall is joined to a vertical outdoor wall surface.

  In the present invention as set forth in claim 3, the partition material is disposed in an inclined shape so as to be inclined downward toward the outdoor side so that the rainwater that has entered may be drained naturally, and the outside air inlet is provided with the partition. The material is formed immediately above the position where the material is joined to the vertical outdoor wall surface.

  According to a fourth aspect of the present invention, the indoor ventilation port is formed on a vertical side surface, and the flow path switching device has an outdoor air outlet on the indoor side and an air layer communication port that reaches the air layer on the side surface. A ventilation cover member disposed on the side surface of the vertical body, and a sliding cover member disposed inside the ventilation cover member so as to be slidable indoors and outdoors, and from the indoor ventilation port to the outside air outlet. A position for opening the passage and closing the passage from the indoor ventilation port to the air layer communication port, and a passage from the indoor ventilation port to the air layer communication port and opening the passage from the indoor ventilation port to the outside air blowing The curtain wall window ventilation structure according to any one of claims 1 to 3, further comprising a switching valve member that is slidably controlled between a position that closes a passage leading to the outlet.

  According to a fifth aspect of the present invention, the indoor ventilation port is formed on a vertical side surface, and the flow path switching device has an outdoor air outlet on the indoor side and an air layer communication port that reaches the air layer on the side surface. A ventilation cover member disposed on the side surface of the vertical body, and a sliding cover member disposed inside the ventilation cover member so as to be slidable indoors and outdoors, and from the indoor ventilation port to the outside air outlet. A position for opening the passage and closing the passage from the indoor ventilation port to the air layer communication port, and a passage from the indoor ventilation port to the air layer communication port and opening the passage from the indoor ventilation port to the outside air blowing A switching valve member that is slidably controlled between a position that closes a passage leading to an outlet and a position that opens a passage leading from the room to the air layer communication port and closes the indoor side ventilation port. 1 to 3 Window ventilation structure Ten wall is provided.

  The inventions according to claims 4 to 5 list specific examples of the flow path switching device. Specifically, the invention according to claim 4 can easily switch between a ventilation mode for introducing outside air into the room and an energy saving mode for introducing outside air into the air layer to reduce the cooling load and the like. Further, in the invention according to claim 5, in addition to the ventilation mode and the energy saving mode, switching to the second energy saving mode for introducing outside air into the air layer can be easily performed.

  As a sixth aspect of the present invention according to any one of the first to fifth aspects, the air layer is provided with a blind at a position closer to the outdoor side, and a rectifying plate is disposed at an appropriate interval in the vertical direction at the position closer to the indoor side. A curtain wall window ventilation structure is provided.

  The invention according to claim 6 is characterized in that a blind is provided at a position near the outdoor side of the air layer, and a current plate is arranged at an appropriate interval in the vertical direction at a position near the indoor side. As a result, the air rising on the indoor side of the air layer can be guided to the outdoor side, and the heat absorption effect of solar heat is improved.

  As a seventh aspect of the present invention, a return air chamber into which rising air is introduced is provided on the upper side of the air layer, and the air collected in the return air chamber is defined in a vertical interior. The curtain wall window ventilation structure according to any one of claims 1 to 6, wherein exhaust air is exhausted to the outside through a flow path.

  The invention of claim 7 relates to the treatment of the air that has risen in the air layer, and defines the structure for exhausting to the outside of the room. By exhausting to the outside through the flow path, the horizontal frame member is not subject to any structural and design restrictions, and the window portion design can be freely designed.

  As described above in detail, according to the present invention, in the window ventilation structure of the curtain wall, since the vertical vertical space disposed between the glasses is used as the ventilation path, the cross section of the horizontal frame Since the shape is not subject to structural and design restrictions, it is possible to ensure a sufficient level difference between the outside air inlet formed on the outdoor side and the ventilation port formed on the indoor side. Can be surely prevented from entering. Further, by allowing outside air to be introduced into the air layer of the double skin, efficient energy saving such as cooling load reduction can be achieved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 is a view of the curtain wall structure 1 as seen from the outdoor side, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. 3 is a view taken along the line III-III in FIG.

  As shown in FIG. 1, in the curtain wall structure, a rectangular frame is constituted by a split vertical 2, 3 on both left and right sides, an upper frame 4 and a lower frame 5 which are substantially vertical frames. The opening is divided into an upper window portion and a lower window portion by means of the intermediate mesh 6 disposed in the glass, and glass G, G is fitted into these openings.

The structure of the intermediate transom 6, the lower-side window portion surrounded by the lower frame 5 and the split side elevational 2 is the outdoor side glass G _O, a double structure by the indoor side glass G _I, two glass G _O, air layer 7 is formed in a space sandwiched between the G _I. Further, in the air layer 7, in order to block solar radiation and to increase the air temperature in the air layer 7 and to reduce the heat load by generating an upward flow and thereby improving the efficiency of ventilation, the air layer 7 A blind 8 is disposed on the outside of the inside of the room. In the present embodiment as the chamber outer glass G _O, insulating glass is used.

  On the other hand, in the structure of the upper side window portion surrounded by the upper frame 4, the intermediate crosspiece 6 and the dividing stand 2, 3, the glass G is fitted near the outdoor side, and the fireproof board 9 is arranged near the indoor side. It has a double structure.

  As shown in detail in FIG. 4, the split vertices 2 and 3 are configured to have a substantially rectangular cross section by combining the halves of the halved structures adjacent to each other on the left and right. The split partition 2 on one side has an indoor side protruding piece 2a having a step-like cross section that protrudes toward the split stand 3 at a position closer to the indoor side, and in the same way at the intermediate portion. An intermediate portion first protruding piece 2b having a stepped cross section protruding toward the upright 3 side, and an intermediate portion second protruding toward the other side split stand 3 at a position closer to the outdoor side than the intermediate portion protruding piece 2b. It has a protruding piece 2c and has a glass supporting protruding piece 2d having an L-shaped cross section at a position closer to the outdoor side. And the concave glass fitting groove | channel M is formed toward an inward side by attaching the pressing edge 10. FIG.

  On the other hand, the other split partition 3 has a seal holding piece 3a that protrudes toward the split stand 2 at a position closer to the indoor side, and similarly, the intermediate portion also faces the split stand 3 side. There is a projecting seal holding piece 3b, an intermediate second projecting piece 3c projecting toward the split stand 2 at a position closer to the outdoor side than the seal holding piece 3b, and an L-shaped cross section at a position near the outdoor side. 3d of glass-like protrusions for glass support. And the concave glass fitting groove | channel M is formed toward an inner side by attaching the pressing edge 11. FIG.

  In the state where the split stand 2 and the split stand 3 are arranged adjacent to each other in the left-right direction, the indoor-side protruding piece 2a and the intermediate first protruding piece 2b of the split stand 2 and the split stand 3 The seal holding pieces 3a and 3b are arranged so as to overlap each other, and the gas-water tightness is held by the solid seals 12 and 13 held by the seal holding pieces 3a and 3b. The intermediate part second projecting piece 2c and the intermediate part second projecting piece 3d of the split stand 3 are opposed to each other with a space therebetween, and a slit-like groove 14 is formed along the vertical direction. . In addition, a slit-like groove 15 is formed along the vertical direction even at a position closer to the outdoor side where the glass fitting grooves M, M are formed, and an internal space surrounded by the divided ridges 2 and the divided ridges 3. Is in communication with the outside.

  In order to apply the present ventilation structure to the curtain wall structure, in the illustrated example, in the inner space surrounded by the divided stand 2 and the divided stand 3, in the illustrated example, the intermediate portion In the space between the first projecting piece 2b and the intermediate part second projecting piece 2c, there are disposed partition frames 16 and 16 having a substantially L-shaped cross section in the longitudinal direction. By filling the space between the two protruding pieces 2c and 3c with the sealing materials 17 and 17, a vertical space P that is continuous in the vertical direction is defined.

  In the vertical space P, as shown in FIG. 6, partition members 18, 18... Are arranged at predetermined intervals, and the vertical space P is partitioned into the vertical spaces A, B. Yes. In each of the vertical spaces A, B,... Partitioned by the partition members 18, 18,..., An opening is formed on the interior side surface of the partition frame 16 at the lower portion thereof, and an outside air inlet 16a is formed. An indoor side ventilation port 2e (3e) is formed on the side of the dividing stand 2, 3 on the upper side. A catch pan 19 is provided at a portion where the partition member 18 is disposed in order to discharge the infiltrated rainwater. In the illustrated example, the catch pan 19 is made of a material made of silicon sponge, has a downward slope toward the outside, and can discharge the infiltrated rainwater to the outside.

Therefore, after the outside air is introduced into the primary outside air introduction space P ₁ from the longitudinal slit groove 15 formed between the dividing stand 2 and the dividing stand 3, the outside air is introduced through the flow path around the partition frame 16. Outside air is introduced into each of the vertical spaces A, B... From the mouth 16a. Then, the outside air that has risen in the vertical spaces A, B,... Flows out from the indoor vents 2e and 3e formed on the side surfaces of the divided rectifications 2 and 3 to the outside.

  In order to control whether the outside air flowing out from the indoor side ventilation openings 2e, 3e is introduced into the indoor side or into the air layer 7 of the double skin, the flow path switching device 20 is provided on the side surfaces of the split verticals 2, 3. Respectively.

  The flow path switching device 20 has a slit-shaped opening groove 23 (hereinafter referred to as an “outside air outlet 23”) serving as an outside air outlet at an indoor side position, and an air layer communication port 21 a that reaches the air layer 7. A longitudinal ventilation cover member 21 disposed on the side surface of each of the partitioning verticals 2 and 3, a sliding cover member 21 disposed inside the ventilation cover member 21 so as to be slidable indoors and outdoors, and the indoor ventilation port 2e (3e) to the outside air outlet 23 (the internal passage of the ventilation cover material 21) is opened, the position to close the passage from the indoor vent 2e (3e) to the air layer communication port 21a, Slide control is performed between a position where the passage from the indoor vent 2e (3e) to the air layer communication opening 21a is opened and the passage from the indoor vent 2e (3e) to the outside air outlet 23 is closed. Long-length Composed of valve member 22..

  More specifically, the ventilation cover member 21 uses a plate-like member having an L-shaped cross section on the indoor side, and a gap is formed between the L-shaped cross section and the split ridges 2 and 3. An outside air outlet 23 is formed by disposing the air layer, and an air layer communication port 21 a reaching the air layer 7 is formed in a wall surface portion constituting the side surface of the air layer 7.

  The switching valve member 22 is a member having a U-shaped cross section disposed with the opening directed toward the indoor side, and is arranged in two rows on the outdoor side and the indoor side on the surface of the dividing stand 2, 3 side. The air tight members 24a and 24b are held, and a ventilation communication opening 22a is formed at an intermediate wall surface between the air tight members 24a and 24b and at a height corresponding to the indoor vent 2e (3e). In addition, air tight materials 24b and 24b are held in two rows on the outdoor side and the indoor side on the surface on the ventilation cover member 21 side.

  Therefore, as shown in FIGS. 5 (A) and 6, the switching valve member 22 is placed in the ventilation cover member 21 so that the ventilation communication opening 22a faces the indoor ventilation port 2e (3e). When it is slid to the position to be moved, the passage from the indoor ventilation port 2e (3e) to the outside air outlet 23 is opened, the air layer communication port 21a is closed, and the outside air is introduced into the room.

  Further, as shown in FIG. 5 (B), when the switching valve member 22 is slid to the indoor side, the passage leading to the outdoor air outlet 23 is closed, and the passage from the indoor ventilation port 2e (3e) to the above-mentioned The passage leading to the air layer communication port 21 a is opened, and the outside air is introduced into the air layer 7.

  In the air layer 7, as shown in FIG. 7, the blind 8 is disposed at a position closer to the outdoor side, and rectifying plates 25, 25... Are disposed at appropriate intervals in the height direction at a position closer to the indoor side. Has been. As shown in FIG. 3, air flow passage holes 25 a, 25 a... Are formed in the current plate 25 at appropriate positions.

  When the air in the air layer 7 is heated by solar heat, an upward flow is generated, and outside air is introduced into the air layer 7 from the air layer communication ports 21a, 21a, ... formed at appropriate intervals in the height direction. In the air layer 7, the air on the blind 8 side is strongly influenced by solar heat, and a large updraft is generated. The air on the indoor side relatively rises while naturally changing the course so as to be attracted by the convection on the blind 8 side, and the upward airflow collides with the lower surface of the rectifying plate 25 to forcibly move the course. Ascend while changing to the blind 8 side. A part of the air flows up through the airflow passage holes 25a, 25a.

As shown in FIG. 8, a return air chamber 26 is disposed in the upper window portion of the curtain wall unit to collect the raised air. An upward opening 6a is formed so that warmed air is introduced into the return air chamber 26 and exhausted to the outside through the upper window portion.
Specifically, as shown in FIG. 9, in the upper side window portion, similarly to the lower side window portion serving as the intake side, the intermediate portion first projecting piece 2 b and the intermediate portion can be referred to on the side of the split stand 2. In the space between the second projecting pieces 2c, there are provided partition frames 16, 16 having a substantially L-shaped cross section in the longitudinal direction, and the partition frames 16, 16 and the intermediate second projecting pieces 2c, 3c. By filling the space between them with the sealing materials 17, 17, a longitudinal space P continuous in the longitudinal direction is defined. In this vertical space P, partitioning members 18, 18,... Are arranged at predetermined intervals, and the vertical space P is partitioned into vertical spaces E, F, G as shown in FIG. . In each of the vertical spaces E, F, G partitioned by the partition members 18, 18..., An indoor outlet 2 f (3 f) is formed on the side surface of the split stand 2, 3 in the lower part thereof. An air discharge port 16 b is formed on the upper side of the partition material 18 and on the indoor side surface of the partition frame 16. A catch pan 19 is provided at the portion where the partition member 18 is disposed in order to discharge the infiltrated rainwater.

  Further, as shown in FIG. 9, exhaust cover members 27 are respectively disposed on the side surfaces of the dividing vertices 2 and 3. The exhaust cover member 27 is made of the same member as the ventilation cover member 21, but a space K is formed in which the opening on the indoor side is closed by the seal member 28 and the periphery is closed. An opening 27a communicating with the return air chamber 26 is formed in the exhaust cover member 27, and the exhaust air reaches the space K from the return air chamber 26 as shown in FIG. After entering the vertical spaces E, F and G from the indoor outlets 2f (3f) of the vertical walls 2 and 3 and ascending, they exit from the air outlet 16b of the partition frame 16 and pass through a flow path around the partition frame 16. Discharged outside.

[Second embodiment]
In the first embodiment, with respect to the flow path switching device 20, it is controlled whether the outside air that has flowed out from the indoor ventilation ports 2e and 3e is introduced into the indoor side or into the double skin air layer 7. However, as shown in FIG. 11, three rows are arranged on the outdoor side, the indoor side, and the middle part of the switching valve member 22A on the side of the dividing vertical 2, 3 side, as shown in FIG. If the air-tight materials 24a, 24a, etc. are held, and the ventilation communication opening 22a is formed on one intermediate wall surface sandwiched between the air-tight materials 24a, 24a, the introduction of outside air is stopped in the state shown in FIG. As shown in FIG. 12 (B), when the ventilation communication opening 22a of the switching valve member 22A is slid to a position facing the indoor ventilation openings 2e (3e) of the vertical walls 2 and 3, , The outside air is more or less As shown in FIG. 12 (C), the flow path leading to the outside air outlet 23 through the indoor side ventilation opening 2e (3e) and the ventilation communication opening 22a is opened, and the outside air is introduced into the room. In a state in which the switching valve member 22A is moved to the most indoor side, the flow path from the indoor side ventilation port 2e (3e) to the air layer communication port 21a is opened, and the outside air can be introduced into the air layer 7.

[Third embodiment]
Furthermore, the third embodiment shown in FIGS. 13 and 14 is an example in which indoor air can be introduced into the air layer 7 in addition to the ventilation mode and the air layer introduction mode.
As shown in FIG. 13, the air tight members 24a, 24a,... Are held in three rows on the outdoor side, the indoor side, and the middle part of the split valve 2B side surface of the switching valve member 22B. A ventilation communication opening 22a is formed in one intermediate wall surface sandwiched between the materials 24a and 24a, and the air tight material 24b is arranged in three rows on the outdoor side, the indoor side, and the intermediate part on the surface on the ventilation cover material 21 side. 24b... And an air layer communication opening 22b is formed in the other intermediate wall sandwiched between the airtight materials 24b and 24b.

  Therefore, as shown in FIG. 14A, when the ventilation communication opening 22a of the switching valve member 22B is slid to a position facing the indoor ventilation openings 2e (3e) of the vertical 2, 3 , The flow path leading to the outside air outlet 23 through the indoor side ventilation opening 2e (3e) of the vertical airway 2 and 3 and the ventilation communication opening 22a is opened, and the outside air is introduced into the room. As shown in (B), when the switching valve member 22B is moved most indoors, the flow path from the indoor vent 2e (3e) to the air layer communication port 21a is opened, and the outside air is transferred to the air layer 7. It can be introduced. Further, as shown in FIG. 14C, when the air layer communication opening 22b of the switching valve member 22B is slid to a position facing the air layer communication port 21a of the ventilation cover member 21, the outside air blowing is performed. Since the passage from the outlet 23 to the air layer communication port 21a is opened and the indoor ventilation port 2e (3e) is closed, the room air can be introduced into the air layer 7.

It is an external view of the curtain wall to which the 1st form example of this ventilation structure is applied. It is the II-II arrow directional view of FIG. It is the III-III arrow directional view of FIG. It is an expansion cross-sectional view of the divided vertical 2, 3 part. (A) is a figure which shows the indoor air introduction mode by the action | operation of the flow-path switching apparatus 20, (B) is a figure which shows the air layer introduction mode of external air. It is the longitudinal cross-sectional view which showed the air flow path of the indoor introduction mode of external air. It is the longitudinal cross-sectional view which showed the air flow path of the air layer introduction mode of external air. It is a principal part longitudinal cross-sectional view which shows the exhaust point of air. It is a vertical part cross-sectional view which shows the discharge route of air. It is a principal part longitudinal cross-sectional view which shows the discharge flow path of air. It is a cross-sectional view of a vertical portion showing a flow path switching device 22A according to a second embodiment. (A) is a figure which shows the ventilation stop mode by the flow-path switching apparatus 22A, (B) is a figure which shows the indoor introduction mode of outside air, (C) is a figure which shows the air layer introduction mode of outside air. It is a cross-sectional view of the vertical part which shows the flow-path switching apparatus 22B which concerns on a 3rd form example. (A) is a view showing the indoor air introduction mode, (B) is a view showing the outside air introduction mode, and (C) is a view showing the room air introduction mode under the control of the flow path switching device 22B. It is. It is a principal part longitudinal cross-sectional view which shows the conventional ventilation apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Curtain wall structure, 2 * 3 ... Dividing stand, 4 ... Upper frame, 5 ... Lower frame, 6 ... Intermediate | middle innocence, 7 ... Air layer, 8 ... Blind, 9 ... Fireproof board, 16 ... Partition frame, 16a ... Outside air introduction port, 18 ... Partition material, 2e, 3e ... Indoor side ventilation port, 19 ... Catch pan, 20 ... Flow path switching device, 21 ... Ventilation cover material, 21a ... Air layer communication port, 22 / 22A / 22B ... Switch valve member, 22a ... Ventilation communication opening, 22b ... Air layer communication opening, 23 ... Outside air outlet, 24a, 24b ... Air tight material, 25 ... Rectifying plate, 26 ... Return air chamber

Claims (7)

In the curtain wall structure in which the window portion has a double structure with the outdoor side glass and the indoor side glass, and an air layer is provided between the two glasses,
A vertical space is defined inside the vertical wall disposed between the glasses adjacent in the left-right direction, an outside air introduction port communicating with the external space is formed outside the room defining the vertical space, and the outside air An indoor side ventilation port communicating with the indoor space is formed at a position higher than the introduction port, and a communication path extending from the indoor side ventilation port to the room is opened or closed, and the indoor side ventilation port reaches the air layer. A curtain wall window ventilation structure comprising a flow path switching device for opening or closing a communication path.   The vertical space is partitioned at an appropriate interval in the height direction, and the outside air inlet is formed at a lower position and the indoor ventilation port is formed at an upper position in each partitioned vertical space. The window wall ventilation structure for a curtain wall according to claim 1.   The partition material that divides the inside of the vertical space at an appropriate interval in the height direction is arranged so as to have a downward slope toward the outdoor side, and the outside air inlet is joined to the wall surface of the outdoor side where the partition member is vertical. The window wall ventilation structure for a curtain wall according to claim 2, wherein the window wall ventilation structure is formed immediately above the position.   The indoor side ventilation port is formed on a vertical side surface, and the flow path switching device has an outdoor air outlet on the indoor side and an air layer communication port reaching the air layer on a side surface, and the vertical side surface A ventilation cover member disposed in the interior of the ventilation cover member and slidably disposed in the interior and exterior direction of the ventilation cover member and opening a passage extending from the indoor ventilation port to the outdoor air outlet. A position that closes the passage from the indoor ventilation port to the air layer communication port, and a position that opens the passage from the indoor ventilation port to the air layer communication port and closes the passage from the indoor ventilation port to the outside air outlet. A window wall ventilation structure for a curtain wall according to any one of claims 1 to 3, comprising a switching valve member that is slidably controlled between the two.   The indoor side ventilation port is formed on a vertical side surface, and the flow path switching device has an outdoor air outlet on the indoor side and an air layer communication port reaching the air layer on a side surface, and the vertical side surface A ventilation cover member disposed in the interior of the ventilation cover member and slidably disposed in the interior and exterior direction of the ventilation cover member and opening a passage extending from the indoor ventilation port to the outdoor air outlet. A position that closes the passage from the indoor ventilation port to the air layer communication port, and a position that opens the passage from the indoor ventilation port to the air layer communication port and closes the passage from the indoor ventilation port to the outside air outlet. The curtain according to any one of claims 1 to 3, further comprising a switching valve member that is slidably controlled between a position that opens a passage from the room to the air layer communication port and closes the indoor ventilation port. Wall window ventilation structure   6. The curtain wall window according to claim 1, wherein the air layer includes a blind at a position closer to the outdoor side, and a rectifying plate is disposed at an appropriate interval in the vertical direction at the position closer to the indoor side. Ventilation structure. A return air chamber into which rising air is introduced is provided on the upper side of the air layer, and the air gathered in the return air chamber is exhausted to the outside through an exhaust passage defined inside the vertical wall. The window wall ventilation structure for a curtain wall according to any one of claims 1 to 6.

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