JP2011132719A - Curtain wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain wall structure allowing a flow passage change-over device for ventilation and air conditioning to be easily installed in the inside of a building more than an exterior wall part and capable of reducing its cost by virtue of simplification of a building structure. <P>SOLUTION: This curtain wall structure has frame members 31 framing an outer peripheral part and upper part horizontal members 32 and lower part horizontal members 33 arranged in intermediate sections in the direction of height. An upper part side panel G1 is supported in a frame part surrounded by an upper part side of the frame member 31 and the upper part horizontal member 32, and a lower part side panel G2 is supported in a frame part surrounded by a lower part side of the frame member 31 and the lower part horizontal member 33. Curtain wall panels 30 each including an outside air intake 34 between the upper part horizontal member 32 and the lower part horizontal member 33 are arranged adjacent in the vertical direction and the right and left directions to constitute the exterior wall part of the building. The flow passage change-over device 2 for ventilation and air conditioning is arranged in the inside of the building more than the exterior wall part and is communicated with the outside air intake 34. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a curtain wall structure in which a flow path switching device for ventilation and air conditioning is disposed on the inner side of a building than an outer wall portion.

  Conventionally, as shown in the following Patent Document 1, the window portion has a double structure with an outdoor side glass and an indoor side glass, an air layer is provided between the two glasses, and a flow path is provided at the upper and lower portions of the window portion, respectively. A switching device is provided. By switching the channel switching device, outdoor air is introduced into the air layer from the lower side in the summer, and exhausted from the upper side to the outdoor in the summer, and indoor air from the lower side in the winter to the air layer. There is known a curtain wall structure that can be switched between a flow path that is introduced and returned from the upper side to the room, and a flow path that allows outdoor air to be taken into the room in the intermediate period.

  With such a curtain wall structure, for example, the heat load due to solar heat inserted from the glass window is reduced in the summer, and the air heated by the solar heat is circulated indoors in the winter. It has come to be illustrated.

JP 2006-291689 A

  However, in the curtain wall structure described in Patent Document 1, the flow path switching device for ventilation and air conditioning is installed in a mounting space formed in the curtain wall structure. In order to install, the window portion has to have a double skin curtain wall structure in which the outdoor glass and the indoor glass have a double structure and an air layer is provided between the two glasses. Therefore, with the ordinary single skin curtain wall structure, the expected thickness of the wall is thin and it is not possible to secure a space for installing the flow path switching device, thus reducing the heat load of solar heat that is inserted from the glass window in the summer as described above. It was not possible to provide a flow path switching device for this purpose.

  Moreover, in the curtain wall structure described in Patent Document 1, it is necessary to provide a double skin for the window portion as described above, and further to provide a flow path switching device on each of the upper and lower portions of the window portion per floor. There was a growing problem. The energy saving effect on the equipment cost is effective for the south wall where strong solar radiation is inserted, but the south wall and the west wall may not be able to achieve sufficient energy saving depending on the solar radiation conditions. High costs were pointed out.

  Therefore, the main problem of the present invention is that in the curtain wall structure, the flow path switching device for ventilation and air conditioning can be easily installed on the inner side of the building than the outer wall portion, and the cost is reduced by simplifying the building structure. An object of the present invention is to provide a curtain wall structure.

In order to solve the above-mentioned problem, the present invention according to claim 1 includes a frame member that frames the outer peripheral portion, and an upper cross member and a lower cross member that are arranged in the middle in the height direction, and an upper portion of the frame member. An upper side panel is supported by a frame portion surrounded by a side and the upper cross member, a lower side panel is supported by a frame portion surrounded by a lower side of the frame member and the lower cross member, and the upper portion The curtain wall panel provided with the outside air inlet between the cross member and the lower cross member is arranged adjacent to the top and bottom and left and right direction to constitute the outer wall part of the building,
A curtain wall characterized in that a flow path switching device for ventilation and air conditioning is disposed on the inner side of the building than the outer wall portion, and the flow path switching device and the outside air intake port are communicated with each other. A structure is provided.

  In the first aspect of the present invention, the flow path switching device for ventilation and air conditioning is disposed on the inner side of the building than the outer wall portion, and the flow path switching device and the outside air intake port are communicated with each other. Therefore, it is not a structure in which the window portion is made into a double skin curtain wall structure as in the prior art and a flow path switching device is incorporated in the curtain wall itself, but also in a single skin curtain wall structure for ventilation and air conditioning. A flow path switching device can be provided, and the cost can be reduced by simplifying the wall surface structure. In the case of the conventional structure, a space for installing the flow path switching device is provided between the curtain wall panels adjacent in the vertical direction. In this case, however, the accuracy control for ensuring the installation space with high accuracy is provided. However, in the present invention, it has a frame member that frames the outer peripheral portion, an upper cross member and a lower cross member that are arranged in the middle in the height direction, and the upper side of the frame member and the upper horizontal member. An upper side panel is supported by a frame part surrounded by a material, a lower side panel is supported by a frame part surrounded by a lower side of the frame material and the lower side material, and the upper side material and the lower side material are supported. Since a curtain wall panel with an outside air inlet is used in advance with the material, the panel can be moved up and down according to the general curtain wall method without considering the installation space of the flow path switching device. Work just by placing them adjacent in the left-right direction It made.

The present invention according to claim 2 includes a frame member that frames the outer peripheral portion and a cross member disposed in the middle of the height direction, and is surrounded by the upper side of the frame member and the cross member. The upper side panel is supported by the frame member, the lower side panel is supported by the frame portion surrounded by the lower side of the frame member and the cross member, and the outside member is provided to communicate with the cross member from the inside to the outside. Configure the outer wall of the building by arranging adjacent curtain wall panels vertically and horizontally,
A curtain wall characterized in that a flow path switching device for ventilation and air conditioning is disposed on the inner side of the building than the outer wall portion, and the flow path switching device and the outside air intake port are communicated with each other. A structure is provided.

  The invention according to claim 2 is a second embodiment for forming an outside air intake port. Specifically, a cross member is arranged in the middle of the frame member in the height direction, and the cross member is arranged indoors and outdoors. An outside air intake port (through hole) that communicates is provided.

As a third aspect of the present invention, the flow path switching device includes a communication port with an air conditioning facility, a communication port with a room, a communication port with a window portion on the indoor side, and outside air through the outside air intake port. A casing having a communication port; and a switching body that is rotatably provided in the casing and switches a flow path of air flowing through the casing.
By switching the switching body, the window upper communication port and the air conditioning facility communication port communicate with each other, a circulating air conditioning mode for supplying room air above the window unit to the air conditioning facility, the outside air communication port and the air conditioning facility communication port Can be switched between a ventilation air-conditioning mode that supplies outside air to the air conditioning equipment, and a natural ventilation mode that connects the outside air communication port, the indoor communication port, and the window top communication port to supply outside air to the room A curtain wall structure according to any one of claims 1 and 2 is provided.

  The invention according to the third aspect defines the specific configuration of the flow path switching device and the flow path switching state in various operation modes. In particular, in the circulation air conditioning mode, the upper window communication port and the air conditioning facility communication port communicate with each other, and the indoor air above the window is supplied to the air conditioning facility. This reduces the heat load of solar heat inserted from the glass window in the summer. It becomes like this.

  According to a fourth aspect of the present invention, there is provided the curtain wall structure according to any one of the first to third aspects, wherein the upper side panel is made of either glass or an outer wall board.

  In the invention of claim 4, for example, when the outside air intake is provided on the upper side from the ceiling panel of each floor, the upper side panel may be made of glass, but the ceiling panel blocks the solar radiation into the room, so that the outer wall A board may be used.

  The present invention according to claim 5 provides the curtain wall structure according to any one of claims 1 to 4, wherein the lower panel is made of glass.

  In the invention described in claim 5, it is desirable that the lower panel uses glass so as to constitute a window portion of the building.

  According to a sixth aspect of the present invention, there is provided the curtain wall structure according to the first aspect, wherein the upper cross member and the lower cross member are integrally formed by being connected by a connecting material.

  In the invention according to claim 6, the frame material of the outside air intake can be unitized by integrally forming the upper cross member and the lower cross member by connecting them with a connecting member, so that workability and maintainability are improved. Can be improved.

  As a seventh aspect of the present invention, there is provided the curtain wall structure according to any one of the first to sixth aspects, wherein a louver is disposed at the outside air intake port.

  As the present invention according to claim 8, there is provided the curtain wall structure according to any one of claims 1 to 7, wherein a hook is attached to the outside of the outside air intake port.

  As described above in detail, according to the present invention, a curtain wall structure capable of easily installing a flow path switching device for ventilation and air conditioning in a single skin curtain wall structure and reducing the cost by simplifying the building structure. Will be able to provide.

It is a front view of curtain wall structure 1 concerning the present invention. It is a longitudinal cross-sectional view of the building provided with the flow-path switching apparatus 2. It is the principal part enlarged view. 3 is a longitudinal sectional view of the flow path switching device 2. FIG. 2 is a perspective view of a flow path switching device 2. FIG. 3 is a perspective view of a switching body 8. FIG. It is a longitudinal cross-sectional view of the flow-path switching apparatus 2 in circulation air conditioning mode. It is a longitudinal cross-sectional view of the flow-path switching apparatus 2 in ventilation air conditioning mode. It is a longitudinal cross-sectional view of the flow-path switching apparatus 2 in natural ventilation mode. It is a longitudinal cross-sectional view of the flow-path switching apparatus 2 in a stop mode. FIG. 6 is a cross-sectional view of a cross member showing another example of forming the outside air intake port.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[Curtain wall structure]
As shown in FIGS. 1 and 2, the curtain wall structure 1 according to the present invention includes a frame member 31 that frames an outer peripheral portion, an upper cross member 32 and a lower cross member 33 that are arranged in the middle in the height direction. The upper glass G1 is supported by a frame portion surrounded by the upper side of the frame member 31 and the upper cross member 32, and is surrounded by the lower side of the frame member 31 and the lower cross member 33. A curtain wall in which a lower glass G2 is supported by a frame portion, and the upper cross member 32 and the lower cross member 33 are provided with a space in the vertical direction so that an outside air inlet 34 is provided therebetween. The panel 30 is arranged adjacent to each other in the vertical and horizontal directions to constitute an outer wall portion of the building. The flow path switching device 2 for ventilation and air conditioning is disposed on the inner side of the building than the outer wall portion, and the flow path switching device 2 and the outside air intake 34 are communicated with each other. is there.

The following is a detailed description.
First, as shown in FIG. 2, as the building structure, the outer wall is composed of the curtain wall panel 30 and the slab S is arranged on each floor, and the position corresponding to the upper part of the window portion on each floor, specifically the ceiling. The outside air inlet 34 is provided between the panel P and the slab S. In addition, on the indoor side near the window part on each floor, in order to reduce the heat load by blocking the solar radiation and increasing the air temperature between the window part and generating an upward flow and thereby improving the efficiency of ventilation A blind B is provided.

  As shown in FIGS. 2 and 3, the upper glass G1 is provided from the ceiling panel P of each floor to the ceiling slab S because the outside air inlet 34 is provided above the window of each floor as described above. Be able to. Therefore, although the upper glass G1 may be a double-glazed glass (pair glass), since the solar radiation to the room is blocked by the ceiling panel P, a single plate glass may be used. Moreover, it can also be set as an outer wall board instead of glass.

  On the other hand, the lower side glass G2 is provided from the floor of each floor to the ceiling panel P, and constitutes a window part. Therefore, in consideration of indoor heat insulation, etc., it may be a double layer glass (pair glass). preferable.

  As shown in FIG. 3, the upper cross member 32 is a frame member having a fitting groove 32a with the upper side glass G1 on the upper surface, and the lower cross member 33 is similarly formed with the lower side glass G2 on the lower surface. This is a frame material having a fitting groove 33a. Each of the upper cross member 32 and the lower cross member 33 extends to the indoor side by a predetermined length to form a flow path to the indoor side, and an outdoor air communication port of the flow path switching device 2 is formed on the indoor side end face. A plurality of bolts 32b and 33b for fixing the duct connected to 7 are provided in a protruding state.

  The outside air inlet 34 is communicated with a flow path switching device 2 (detailed later) for ventilation and air conditioning disposed on the inner side of the building than the outer wall portion.

  As described above, in the curtain wall structure 1 according to the present invention, since the window portion has a double skin curtain wall structure as in the prior art, the flow path switching device is not incorporated in the curtain wall structure. Even with this curtain wall structure, the flow path switching device 2 can be provided.

It is preferable that the upper cross member 32 and the lower cross member 33 are integrally formed by connecting both side portions and the intermediate portion of the outside air intake port 34 with a connecting member (not shown). As a result, the frame material of the outside air intake 34 can be unitized, and the workability and maintainability can be improved.
As shown in FIG. 3, the outside air intake 34 is provided with an aluminum louver 35 attached to the opening, and a hook 36 that protrudes outward to prevent rain. In the illustrated example, the flange 36 is attached to the lower outer portion of the outside air intake 34, but can be attached to the outer upper portion.

[Structure of flow path switching device 2]
As shown in FIG. 2, the flow path switching device 2 is provided for each floor inside the building, and is for switching to a flow path corresponding to various operation modes for ventilation and air conditioning. In the illustrated example, the flow path switching device 2 is fixed to the lower surface side of the ceiling slab S via the mounting bracket 20 in the vicinity of the curtain wall panel 30 on each floor, and is stored in the ceiling panel P. .

  As shown in FIGS. 3 and 4, the flow path switching device 2 includes a communication port 4 with an air conditioner, a communication port 5 with a room, a communication port 6 with a window portion on the indoor side, and a communication with outside air. A casing 3 provided with a mouth 7 and a switching body 8 that is rotatably provided in the casing 3 and switches a flow path that circulates in the casing 3 are provided. As shown in FIG. 5, the casing 3 is a hollow body having a deformed polygonal cross section, has a length dimension substantially corresponding to a curtain wall panel, and has openings at both end surfaces sealed by an end surface sealing plate 3A. Yes. Each of the communication ports 4 to 7 is a slit-like opening that is long in the longitudinal direction of the member.

  The air conditioning facility communication port 4 is connected to an air supply side of an air conditioning facility (not shown), and a chamber box 4A having a function such as an air filter is disposed in the middle (see FIG. 2). The indoor communication port 5 is provided with a fan in the middle of the flow path as necessary, and is connected to an air outlet 5A provided in the ceiling panel P part. The window upper communication port 6 is connected to an upper portion of the curtain wall panel 30 in the vicinity of the indoor side, preferably an upper portion between the curtain wall panel 30 and the blind B 6A. The outside air communication port 7 is connected to an outside air intake port 34 that communicates with the outside air on the wall surface of the building. The outside air communication port 7 and the outside air intake port 34 may be connected via a duct 7B as shown in the drawing, or may be connected so as to be directly close to each other. As shown in FIG. 3, the outside air intake 7 </ b> A is provided with an aluminum louver 35, and a bird-proof net 7 </ b> D for preventing birds from entering inside.

  As shown in detail in FIG. 4, the flow path switching device 2 is arranged in the clockwise direction on the peripheral surface of the casing 3 having a hollow circular cross section so that the air conditioning equipment communication port 4, the indoor communication port 5, and the upper window portion communication. The communication passages 4 to 7 are provided in the order of the mouth 6 and the outside air communication port 7, and the shaft member 9 is provided at the concentric shaft portion in the casing 3, whereby the circulation channel 10 is formed in the casing 3. .

  A fixed partition plate 11 is fixed to the circulation channel 10 so as to partition the air conditioning facility communication port 4 and the indoor communication port 5. Sealing material holding portions 11a, 11a are respectively provided at the inner peripheral surface side and the outer peripheral surface side end portions of the fixed partition plate 11, and solid sealing materials 12, 12 are respectively attached thereto. These solid sealing materials 12, 12 are casings. 3 and the outer surface of the shaft member 9 are in contact with each other. The fixed partition plate 11 is fixed to the end face blocking plate 3A that closes both axial ends of the casing 3 with fixing screws.

  The switching body 8 is disposed in the circumferential flow path 10 so as to be rotatable along the direction of the circumferential flow path with the shaft member 9 as a rotation center. The switching body 8 is configured to be able to switch the flow path by being rotationally driven together with the shaft member 9 by a tubular motor 19 provided inside the hollow shaft-shaped shaft member 9.

  As shown in FIG. 4, the switching body 8 includes a rotating partition plate 13 provided so as to partition the circulation flow path 10, and the circumferential portion at a position spaced apart from the rotating partition plate 13 in the circumferential direction. The rotary closing body 14 is provided so as to close the communication port while opening the circulation passage. Sealing material holding portions 13 a, 14 a, and 14 a are provided along the axial direction of the casing 3 on the outer edge portion of the rotating partition plate 13 and on both sides of the outer peripheral surface of the rotary closing body 14, respectively. Solid sealing materials 15 and 16 slidably contacting the outer peripheral surface are attached.

  As shown in FIG. 4, a separation portion 17 is provided between the rotary partition plate 13 and the rotary closing body 14, and the rotary closing body 14 is connected to the shaft member 9 as shown in FIG. 6. A plurality of openings 18A, 18A,... Are provided in the rib 18 in the axial direction, thereby forming a channel for opening the circulation channel. As a result, the air that has flowed into the circulation channel 10 from the separation portion 17 can flow to the circulation channel 10 through the opening 18A.

[Operation mode]
The flow path switching device 2 switches the flow path according to the following four operation modes for ventilation and air conditioning by switching (rotational driving) of the switching body 8. Hereinafter, various operation modes will be described in detail.

(Circulating air conditioning mode)
In this operation mode, in order to reduce the heat load caused by solar heat inserted from the lower glass G2, especially in the summer, the heated air near the lower glass G2 is sucked from the upper part of the window by solar heat and supplied to the air conditioning equipment. is there.

In the circulation air conditioning mode, as shown in FIG. 7, the rotating partition plate 13 is positioned between the indoor communication port 5 and the window upper communication port 6 by rotating the switching body 8 so as to rotate. 13 and the indoor communication port 5 sandwiched between the fixed partition plate 11 and the rotary blocker 14 are positioned so as to block the outdoor air communication port 7. Thereby, the window part upper communication port 6 and the air conditioning equipment communication port 4 communicate with each other through the separation part 17 of the switching body 8, and the indoor air in the upper part of the window part is supplied to the air conditioning equipment by the suction force of the fan of the air conditioning equipment. It becomes like this.
Here, in this circulation air-conditioning mode, the window portion upper communication port 6 and the air conditioning equipment communication port 4 are provided such that the angle α formed by the flow path direction center line of each flow channel becomes an obtuse angle, Indoor air smoothly flows to the air conditioning facility communication port 4.

(Ventilation air conditioning mode)
In this operation mode, outside air is supplied to the air conditioning equipment when the heat load due to solar heat is weak or when air conditioning is performed while ventilation is performed by taking in outside air.

  In the ventilation air conditioning mode, as shown in FIG. 8, the rotary partition plate 13 is positioned between the indoor communication port 5 and the window upper communication port 6 by rotating the switching body 8 to rotate. 13 and the indoor communication port 5 sandwiched between the fixed partition plate 11 and the rotary closing body 14 are positioned so as to close the upper window communication port 6. Thereby, the outside air communication port 7 and the air conditioning facility communication port 4 communicate with each other, and the outside air is supplied to the air conditioning facility by the suction force of the fan of the air conditioning facility.

(Natural ventilation mode)
This operation mode is performed when it is desired to supply outdoor air directly into the room in the middle period such as spring and autumn, when it is desired to take in cold outdoor air at night in the summer, or when indoor ventilation is required even in the daytime.
In the natural ventilation mode, as shown in FIG. 9, by rotating the switching body 8, the rotating partition plate 13 is positioned between the outside air communication port 7 and the air conditioning facility communication port 4, thereby rotating the partition plate 13. And the air-conditioning equipment communication port 4 sandwiched between the fixed partition plates 11 is closed. As a result, the outside air communication port 7 communicates with the indoor communication port 5 and the window upper communication port 6, and natural ventilation due to a pressure difference between the inside and outside of the room or forced ventilation by a fan provided in the middle of the flow path is performed.

  Here, in this operation mode, since the window part upper communication port 6 is open | released, the distribution | circulation to the window part upper communication port 6 is reduced by employ | adopting the following structure. First, the window upper communication port 6 has a smaller cross-sectional area than the other communication ports, thereby reducing the air flow rate to the window upper communication port 6 and suppressing air entry due to increased pressure loss. is doing. Secondly, the outside air communication port 7 and the indoor communication port 5 are formed so that the angle β formed by the flow direction center line of each flow channel becomes an obtuse angle, that is, by using a straight flow channel. The air easily flows into the indoor communication port 5. Thirdly, one or a plurality of elbows are provided in a duct connecting the window portion upper communication port 6 and the suction port 6A at the upper portion of the window portion to suppress the ingress of air due to an increase in pressure loss in the pipe line.

(Stop mode)
In this mode, the air flow in the flow path switching device 2 is stopped. In the stop mode, as shown in FIG. 10, by rotating the switching main body 8, the window upper communication port 6 and the air conditioning equipment communication port 4 communicate with each other in the same manner as in the circulation air conditioning mode. Stop the air supply fan to stop the air flow.

[Other examples]
In the embodiment described above, the outside air intake 34 has an upper cross member 32 and a lower cross member 33 arranged in the middle in the height direction of the frame member 31, and the upper side of the frame member 31 and the upper cross member 32 The upper side glass G1 is supported by the surrounded frame part, the lower side glass G2 is supported by the frame part surrounded by the lower side of the frame member 31 and the lower cross member 33, and the upper cross member 32 and the lower part are supported. Although formed by a gap with the cross member 33, the cross member 21 shown in FIG. 11 is arranged in place of the upper cross member 32 and the lower cross member 33, and the upper side of the frame member 31 and the cross member are arranged. 21 supports the upper side glass G1 in a frame part surrounded by 21, supports the lower side glass G2 in a frame part surrounded by the lower side of the frame member 31 and the cross member 21, The outside air intake 34 may be formed by providing openings 21a, 21a,.

  DESCRIPTION OF SYMBOLS 1 ... Curtain wall structure, 2 ... Flow path switching apparatus, 3 ... Casing, 4 ... Air-conditioning equipment communication port, 5 ... Indoor communication port, 6 ... Window part upper communication port, 7 ... Outside air communication port, 8 ... Switching main body, 9 DESCRIPTION OF SYMBOLS ... Shaft member, 10 ... Circumferential flow path, 11 ... Fixed partition plate, 13 ... Rotation partition plate, 14 ... Rotation obstruction body, 17 ... Separation part, 21 ... Cross member, 30 ... Curtain wall panel, 31 ... Frame member, 32 ... upper cross member, 33 ... lower cross member, 34 ... outside air intake, B ... blind, G1 ... upper side glass, G2 ... lower side glass, P ... ceiling panel, S ... slab

Claims (8)

It has a frame member that frames the outer periphery, and an upper cross member and a lower cross member arranged in the middle in the height direction, and the upper side of the frame portion surrounded by the upper side of the frame member and the upper cross member A panel is supported, a lower panel is supported by a frame portion surrounded by a lower side of the frame member and the lower cross member, and an outside air intake port is provided between the upper cross member and the lower cross member. Configure the outer wall portion of the building by arranging the curtain wall panels adjacent in the vertical and horizontal directions,
A curtain wall characterized in that a flow path switching device for ventilation and air conditioning is disposed on the inner side of the building than the outer wall portion, and the flow path switching device and the outside air intake port are communicated with each other. Construction. A frame member that frames the outer peripheral portion, and a cross member disposed in the middle of the height direction, and an upper side panel is supported by a frame portion surrounded by the upper side of the frame member and the cross member, A curtain wall panel is supported by a frame part surrounded by a lower part of the frame member and the cross member, and a curtain wall panel provided with an outside air intake port that communicates with the cross member from the inside to the outside. The building's outer wall by placing it adjacent to
A curtain wall characterized in that a flow path switching device for ventilation and air conditioning is disposed on the inner side of the building than the outer wall portion, and the flow path switching device and the outside air intake port are communicated with each other. Construction. The flow path switching device includes a casing having a communication port with an air conditioning facility, a communication port with a room, a communication port with an upper portion of a window on the indoor side, and a communication port with outside air through the outside air intake port, A switching body provided rotatably in the casing and switching a flow path of air flowing through the casing;
By switching the switching body, the window upper communication port and the air conditioning facility communication port communicate with each other, a circulating air conditioning mode for supplying room air above the window unit to the air conditioning facility, the outside air communication port and the air conditioning facility communication port Can be switched between a ventilation air-conditioning mode that supplies outside air to the air conditioning equipment, and a natural ventilation mode that connects the outside air communication port, the indoor communication port, and the window top communication port to supply outside air to the room The curtain wall structure according to any one of claims 1 and 2.   The curtain wall structure according to claim 1, wherein the upper panel is made of either glass or an outer wall board.   The curtain wall structure according to claim 1, wherein the lower panel is made of glass.   The curtain wall structure according to claim 1, wherein the upper cross member and the lower cross member are integrally formed by being connected by a connecting material.   The curtain wall structure according to any one of claims 1 to 6, wherein a louver is disposed at the outside air intake port.   The curtain wall structure according to any one of claims 1 to 7, wherein a gutter is attached to the outside of the outside air intake port.

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