Multifunctional curtain wall of composite structure and using method of multifunctional curtain wall

Abstract

The invention relates to a multifunctional curtain wall of a composite structure and a using method of the multifunctional curtain wall in the technical field of building envelope structures, the multifunctional curtain wall comprises a plurality of curtain wall structure units spliced in parallel, and each curtain wall structure unit comprises a curtain wall cavity glass back plate, a rib plate, a pin box and a reel structure system which form an approximate cuboid. The reflectors are arranged on the two sides of the interior of the cavity. The whole reflector is oval, and the two reflecting hammers are located at the upper focus position and the lower focus position of the oval respectively. Windows capable of being opened and closed are respectively formed in the upper part and the lower part of the glass back plate; ventilation openings with covers are formed in the upper sides of the rib plates; the reel structure system comprises a film-free section, a light-transmitting film section and a reflecting film section; switching is carried out through rotation of the upper and lower reel assemblies; and a light extraction hole is formed in the reflecting film section. In the using process, cooling and ventilation can be conducted on a room in a building, meanwhile, working conditions can be switched according to the using requirements of indoor personnel, and the indoor environment quality and the human body comfort are improved on the premise that energy consumption is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of building enclosure structures, and in particular to a composite structure curtain wall device with multiple functions. Background Art

[0002] Curtain wall refers to a lightweight, non-load-bearing enclosure structure wrapped around the outside of the main structure of a building, including various types such as glass curtain wall, metal plate curtain wall, stone plate curtain wall, etc. The traditional curtain wall is mainly used to meet the enclosure and decoration effects of the building. The breathing curtain wall developed in recent years has given the curtain wall the functions of insulation and ventilation. The breathing curtain wall is generally composed of two inner and outer curtain walls, and ventilation is carried out through the air channel between the two curtain walls. However, due to the limitation of thermal pressure, the ventilation effect is difficult to enhance, and most of them cannot achieve the switching of working conditions when the seasons and weather change, especially the lack of adaptability to extreme climates, so they cannot well meet the comfort and energy-saving needs of indoor personnel. If the structural design of the curtain wall can be used to achieve effective insulation and enhanced ventilation in the summer, effective heating and warmth in the winter, and switch working conditions according to meteorological conditions, especially for extreme climates, it can isolate radiation heat dissipation under the condition of meeting certain natural lighting conditions, then the performance of the curtain wall can be improved, the investment in other building environment control equipment can be reduced, and the thermal environment inside the building can be improved, and the energy-saving effect can be achieved. Summary of the invention

[0003] The purpose of the present invention is to provide a multifunctional curtain wall with a composite structure and a method for using the same. Through structural design and technical means, natural energy is utilized to achieve effective heat insulation and enhanced ventilation inside the building in summer, effective heating and warmth preservation in winter, and switching working conditions according to meteorological conditions. Especially for extreme climates, it is possible to isolate radiation heat dissipation under the condition of meeting certain natural lighting conditions, thereby improving indoor human comfort without energy consumption.

[0004] To this end, the technical solution of the present invention is: a multifunctional curtain wall of a composite structure, comprising a plurality of curtain wall structural units spliced ​​in parallel, wherein the curtain wall structural units include a glass back plate, a rib plate, a pin box, a scroll structure system, a reflector and a reflective hammer; the glass back plate is located at the exterior facade of the building, the rib plate is located at the outside of the glass back plate and is perpendicular to the glass back plate, there are two pin boxes, which are respectively located at the top and bottom of the rib plate, and there are two scroll structure systems, which are respectively located at the top and bottom of the rib plate; the glass back plate, the rib plate, the pin box and the scroll structure system together form a curtain wall cavity that is approximately rectangular, and the reflector is arranged on both sides of the cavity; the reflector is elliptical as a whole, and there are two reflective hammers, which are respectively located at the upper and lower focal positions of the ellipse; the glass back plate is provided with windows that can be opened and closed at the upper and lower parts respectively, the glass back plate above the upper window is provided with a heat absorbing coating or directly a black heat absorbing plate on the side facing the outdoors, and the lower glass back plate is transparent glass; the upper side of the rib plate is provided with a covered vent; The reel structure system includes a reel support, a reel assembly, a reel hanging rope, a film-free segment, a light-transmitting film segment and a reflective film segment; the reel support is fixedly connected to the upper and lower ends of the two ribs, there are two reel assemblies, which are respectively fixedly connected to the reel supports at the upper and lower ends, and the reel assembly includes a reel shell and a reel; there are two reel hanging ropes, which are respectively located on both sides between the upper and lower reel assemblies; between the two reel hanging ropes, there are film-free segments, light-transmitting film segments and reflective film segments from top to bottom, and the film-free segments, light-transmitting film segments and reflective film segments are wound on the upper and lower reel assemblies, and switched by rotating the upper and lower reel assemblies; the reflective plate is A long thin plate bent into an elliptical shape, the inner surface of which is coated with a mirror reflective paint with a high reflectivity to solar radiation; the top and bottom of the reflective plate are connected to a pin box; two reflective hammers are connected to each other and rotatably connected to the pin box; the reflective cone is an isosceles right-angled triangular prism, the surfaces of the two right-angled sides of the reflective cone are coated with a paint with a high reflectivity to solar radiation, and the surface of the base of the isosceles right-angled triangle of the reflective cone is provided with a heat-absorbing coating; a reflective film light-collecting hole is provided on the upper part of the reflective film segment, and when the reflective film segment is pulled out from the reel assembly, the position of the reflective film light-collecting hole corresponds to the upper reflective cone.

[0005] Furthermore, the pin box is a rectangular box made of lightweight aluminum alloy, and the two sides of the pin box are connected to the ribs via pins; bolts are provided at the top and bottom of the reflective plate, and the bolts are rotatably connected to the pin box. The bolts are connected to the reflective cone via a reflective cone vertical rope, and an electric device is provided in the pin box that can drive the reflective cone vertical rope to rotate.

[0006] Furthermore, the rib is arranged at the edge of the glass back plate, and two adjacent curtain wall structure units share one rib.

[0007] Furthermore, the ribs are installed up and down in the embedded grooves of the top and bottom floor slabs of the building, and a plurality of ribs are arranged at equal intervals. The ribs and the glass back plate are sealed with silicone structural adhesive.

[0008] Furthermore, the window is an electric window that opens sideways or opens toward the interior of the room and is equipped with an electric device.

[0009] Furthermore, the lengths of the non-film segment, the light-transmitting film segment and the reflective film segment are all equal to the length of the rib; wherein the light-transmitting film segment is a thin film material with high transmittance to solar radiation, the reflective film segment is provided with a thin film material with high reflectivity to solar radiation on the outward side, and a white diffuse reflection coating on the inward side.

[0010] In order to ensure that the reflector is fixed and stable, the reflector is elastically connected to the rib plate via a spring.

[0011] Furthermore, the bottom of the rib plate is provided with a drain hole with holes facing outward and tilted downward, so that condensed water can be continuously discharged.

[0012] The method of using the present invention is to switch different functional sections of the reel structure system by adjusting the reel vertical rope to change the curtain wall working condition and realize at least one of the following five working conditions: (1) Hot summer conditions: In hot summer weather, the entire reflective film section is located between the upper and lower scroll assemblies; at this time, most of the sunlight is reflected by the reflective film section, so that the curtain wall has excellent heat insulation performance; a small amount of sunlight enters the curtain wall cavity through the reflective film light-collecting hole, and is reflected by the reflective cone to the upper half of the reflective plate. According to the reflection principle of the elliptical surface, the sunlight is reflected by the mirror reflective coating on the upper half of the reflective plate to the vicinity of the lower focus of the elliptical reflective plate, and then the light is reflected by the reflective cone on the lower side to the white diffuse reflective coating on the inner side of the reflective film section, and then reflected into the indoor space; this system can make the room get lighting at a certain working surface height under the premise of minimum heat gain and avoid glare; in addition, the light hole is located in the upper part of the curtain wall, and the part heated by sunlight radiation is also located at a high place, which has little impact on the thermal environment at the height of the human body; on the other hand, since there is a certain vertical height difference between the ventilation hole at the upper end of the rib plate and the lower window of the glass back plate, the lower window and ventilation hole can be opened in stages to achieve a certain heat pressure ventilation in the room; (2) General working conditions in summer: In normal summer weather, a small part of the light-transmitting film segment and most of the reflective film segment are located between the upper and lower scroll assemblies; at this time, most of the sunlight is reflected by the reflective film segment, so that the curtain wall has a certain heat insulation performance; a small part of the sunlight passes through the light-transmitting film segment and the upper window into the room, so that the room is illuminated to a certain extent; on the other hand, there is a certain vertical height difference between the ventilation hole at the upper end of the rib plate and the lower window, and the sunlight combined with the upper glass back plate with a heat-absorbing coating heats the air in the upper light-transmitting film segment area of ​​the curtain wall space to a certain extent, increasing the vertical temperature difference in the curtain wall cavity, so that excellent heat pressure ventilation is achieved in the room; (3) Transition season conditions: In the transition season, the entire non-film section is located between the upper and lower scroll assemblies; at this time, sunlight directly passes through the non-film section, and then passes through the glass back panel and windows into the room, so that the room is adequately lit; on the other hand, air can also directly enter the room through the non-film section and windows, so that good wind pressure ventilation can be achieved in the room; (4) Winter daytime working conditions: In winter, during the day, the light-transmitting film section is located between the upper and lower scroll assemblies; at this time, sunlight directly passes through the light-transmitting film section, the glass back plate and the window into the room, so that the room has excellent lighting; the reflective cone rotates 180 degrees, and the side with the heat-absorbing coating faces the outside, which can heat the air in the curtain wall together with the upper glass back plate with the heat-absorbing black coating combined with sunlight; open the window, because there is a certain vertical height difference between the upper and lower windows, the air in the room can enter the curtain wall from the lower window, be heated, and enter the room from the upper window; in addition, the ventilation holes on the upper end of the rib plate can be opened in stages to allow a certain amount of air exchange between the indoor and outdoor areas; (5) Winter night working conditions: At night in winter, the reflective film section is located between the upper and lower scroll assemblies, and the windows are closed to minimize outdoor cold radiation and prevent heat loss.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The device uses natural energy to achieve effective heat insulation and enhanced ventilation inside the building in summer, effective heating and warmth in winter, and switches working conditions according to meteorological conditions. Especially for extreme climates, it can isolate radiant heat under the condition of meeting certain natural lighting conditions, thereby improving the thermal comfort of indoor humans without energy consumption.

[0014] 2. This product can use solar energy to achieve its comprehensive functions without energy consumption.

[0015] 3. This product has a simple structure, low cost, convenient construction, high market feasibility, and can be expected to have certain economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front elevation of the curtain wall.

[0017] Figure 2 This is the front elevation of the curtain wall structural unit.

[0018] Figure 3 This is the plan view of the curtain wall structural unit.

[0019] Figure 4 This is the AA section view of the curtain wall structure unit.

[0020] Figure 5 This is the BB section view of the curtain wall structure unit.

[0021] Figure 6 This is a detailed view of the top of the AA section of the curtain wall structure unit.

[0022] Figure 7 This is a detailed view of the top of the BB section of the curtain wall structure unit.

[0023] Figure 8 This is a detailed view of the bottom of the AA section of the curtain wall structure unit.

[0024] Fig. 9 This is a detailed view of the bottom of the BB section of the curtain wall structure unit.

[0025] Fig.10 Schematic diagram of the glass back panel.

[0026] Fig.11 Schematic diagram of rib plate.

[0027] Fig.12 Schematic diagram of the scroll structure system.

[0028] Fig.13 This is a cross-sectional view of a reflective cone.

[0029] Fig.14 This is a schematic diagram of hot summer conditions.

[0030] Fig.15 This is the lighting principle diagram of the curtain wall structure unit under hot summer conditions.

[0031] Fig.16 This is the reflection working condition diagram of the upper reflective cone and the lower reflective cone.

[0032] Fig.17 This is a schematic diagram of general operating conditions in summer.

[0033] Fig.18 This is the ventilation principle diagram of the curtain wall structure unit under general working conditions in summer.

[0034] Fig.19 This is a schematic diagram of the transition season operating conditions.

[0035] Fig. 20 This is a schematic diagram of the working conditions during the day in winter.

[0036] Fig.21 This is the ventilation principle diagram of the curtain wall structure unit under daytime conditions in winter.

[0037] Fig. 22 This is a schematic diagram of the working conditions on a winter night.

[0038] In the figure: 1 glass back plate; 2 rib plate; 21 vent; 3 pin box; 4 reel structure system; 41 reel support; 42 reel assembly; 421 reel shell; 422 reel; 43 reel vertical rope; 44 film-free section; 45 light-transmitting film section; 46 reflective film section; 47 reflective film light-collecting hole; 5 reflective plate; 6 window; 7 pin; 8 bolt; 9 spring; 10 reflective cone vertical rope; 11 reflective cone; 12 drain port. DETAILED DESCRIPTION

[0039] like Figure 1-9 The present invention relates to a multifunctional composite structure curtain wall, which is formed by splicing a plurality of curtain wall structural units in parallel. Each curtain wall structural unit comprises a glass back plate 1, a rib plate 2, a pin box 3, a scroll structure system 4, a reflector 5 and a reflective hammer 11. The glass back plate 1 is located on the facade of the building, the rib plate 2 is located on the outside of the glass back plate 1 and is perpendicular to the glass back plate 1, and two adjacent curtain wall structural units share a rib plate 2, which is made of glass. There are two pin boxes 3, which are respectively located at the top and bottom of a group of rib plates 2, and there are two scroll structure systems 4, which are respectively located at the top and bottom of a group of rib plates 2. The glass back plate 1, the rib plate 2, the pin box 3, the scroll structure system 4 and the reflective hammer 11 together form a curtain wall cavity that is approximately rectangular, and reflective plates 5 are arranged on both sides of the cavity.

[0040] like Figure 1-11 The glass back plate 1 is the inner wall of the curtain wall. The upper and lower parts are provided with windows 6 with electric devices that can be automatically opened horizontally or opened to the indoor. The glass back plate 1 above the upper window 6 is provided with a heat-absorbing coating or a black heat-absorbing plate facing the outdoor side, and the lower glass back plate 1 is transparent glass. The rib plate 2 is installed in the embedded grooves of the top and bottom floors of the building. Multiple rib plates 2 are arranged at equal intervals, vertically connected to the glass back plate 1, and sealed with silicone structural adhesive. The areas on both sides of the upper end of the rib plate 2 facing the outside are slightly thinner, forming two covered vents 21, and the vent covers of the vents 21 are opened and closed by electric devices. The pin box 3 is a rectangular box made of light aluminum alloy, with a hole at each end. The pin 7 is T-shaped, and the non-protruding end is fixedly connected to the rib plate 2 by a metal component, and the protruding end is stuck in the hole of the pin box 3 and can be extended and retracted in the cavity of the pin box 3.

[0041] like Figure 1-12The reel structure system 4 includes a reel support 41, a reel assembly 42, a reel hanging rope 43, a film-free segment 44, a light-transmitting film segment 45 and a reflective film segment 46. There are four reel supports 41, which are respectively fixed to the upper and lower ends of the two ribs 2 by metal components. There are two reel assemblies 42, which are respectively fixed to the reel supports 41 at the upper and lower ends. The reel assembly 42 includes a reel shell 421 and a reel 422. There are two reel hanging ropes 43, which are respectively located on both sides between the upper and lower reel assemblies 42. Between the two reel hanging ropes 43, there are film-free segments 44, light-transmitting film segments 45 and reflective film segments 46 in order from top to bottom, and the lengths of the film-free segments 44, light-transmitting film segments 45 and reflective film segments 46 are all equal to the length of the ribs 2. The transparent film segment 45 is a thin film material with high solar radiation transmittance, and the reflective film segment 46 has a thin film material with high solar radiation reflectance on the outward side and a white diffuse reflective coating on the inward side. The film-free segment 44, the transparent film segment 45 and the reflective film segment 46 can be rolled on the upper and lower reel assemblies 42, or any one of the three parts can be pulled out from the upper and lower reel assemblies 42.

[0042] like Figure 1-13 The reflector 5 is a long thin plate bent into an elliptical shape, and the inner surface is coated with a mirror reflective paint with high reflectivity to solar radiation. The width of the reflector 5 is slightly smaller than the width of the rib 2, and there is a gap between the reflector 5 and the transparent film section 45 and the reflective film section 46. Bolts 8 are provided at the top and bottom of the reflector 5 to connect the reflector 5 and the pin box 3, and the middle part of the side of the reflector is fixedly connected to the rib 2. The outer side of the reflector 5 is elastically connected to the inner side of the rib 2 by a spring 9. A reflective cone hanging rope 10 is connected to the bottom of the bolt 8. The other end of the reflective cone hanging rope 10 is connected to a reflective cone 11. The two reflective cones 11 are respectively located at the upper and lower foci of the elliptical shape of the reflector 5, and the two reflective hammers 11 are connected to each other. The reflective cone hanging rope 10 can be rotated by the electric device in the pin box 3. The reflective cone 11 is an isosceles right-angled triangular prism, the height of the hypotenuse of the triangular cross section of the triangular prism is equal to the width of the long thin strip of the reflective plate 5, the inclined surfaces of the two right-angled sides of the reflective cone 11 are coated with a coating with high reflectivity to solar radiation, and the surface of the isosceles right-angled triangle bottom side of the reflective cone 11 is provided with a heat-absorbing coating. The upper part of the reflective film segment 46 is provided with a reflective film light-collecting hole 47, and when the reflective film segment 46 is pulled out of the reel assembly 42, the position of the reflective film light-collecting hole 47 corresponds to the reflective cone 11. The bottom of the rib plate 2 is provided with a drain hole 12 with a hole tilted outward and downward.

[0043] This product can switch different functional sections of the reel structure system 4 by adjusting the reel vertical rope 43 to change the curtain wall working conditions. According to the meteorological conditions and the use requirements of indoor personnel in the building, the curtain wall composite structure can be divided into the following five working conditions: 1. Hot summer conditions: like Figure 14-17In hot summer weather, the entire reflective film segment 46 is located between the upper and lower reel assemblies 42. At this time, most of the sunlight is reflected by the reflective film segment 46, so that the curtain wall has excellent heat insulation performance. A small amount of sunlight enters the curtain wall cavity through the reflective film light-collecting hole 47, and is reflected by the reflective cone 11 to the upper half of the reflective plate 5. According to the reflection principle of the elliptical surface, the sunlight is reflected by the mirror reflection coating of the upper half of the reflective plate 5 to the vicinity of the lower focus of the elliptical reflective plate 5, and then the light is reflected by the reflective cone 11 on the lower side to the white diffuse reflection coating on the inner side of the reflective film segment 46, and then reflected into the indoor space. This system can make the room get lighting at a certain working surface height under the premise of minimum heat gain and avoid glare. In addition, the light hole 47 is located at the upper part of the curtain wall, and the part heated by sunlight radiation is also located at a high place, which has little impact on the thermal environment at the height of the human body. On the other hand, since there is a certain vertical height difference between the ventilation hole 21 at the upper end of the rib plate 2 and the lower window 6 of the glass back plate 1, the lower window 6 and the ventilation hole 21 can be opened in stages to achieve a certain heat pressure ventilation in the room.

[0044] 2General working conditions in summer: like Figure 18-19 In normal summer weather, a small part of the light-transmitting film segment 45 and a large part of the reflective film segment 46 are located between the upper and lower reel assemblies 42. At this time, most of the sunlight is reflected by the reflective film segment 46, so that the curtain wall has a certain heat insulation performance. A small part of the sunlight passes through the light-transmitting film segment 45 and the upper window 6 into the room, so that the room is illuminated to a certain extent. On the other hand, there is a certain vertical height difference between the ventilation hole 21 at the upper end of the rib plate 2 and the lower window 6, and the sunlight combined with the upper glass back plate 1 provided with a heat-absorbing coating heats the air in the upper light-transmitting film segment 45 area of ​​the curtain wall space to a certain extent, thereby increasing the vertical temperature difference in the curtain wall cavity and achieving excellent heat pressure ventilation in the room.

[0045] 3 Transition season conditions: like Fig. 20 In the transition season, the entire non-film section 44 is located between the upper and lower reel assemblies 42. At this time, sunlight directly passes through the non-film section 44, and then passes through the glass back plate 1 and the window 6 to enter the room, so that the room is adequately lit. On the other hand, air can also directly enter the room through the non-film section 44 and the window 6, so that good wind pressure ventilation can be achieved in the room.

[0046] 4. Winter daytime working conditions: like Fig.21In winter, during the day, the light-transmitting film section 45 is located between the upper and lower reel assemblies 42. At this time, sunlight directly passes through the light-transmitting film section 45, the glass back plate 1 and the window 6 to enter the room, so that the room has excellent lighting. The reflective cone 11 rotates 180 degrees, and the side with the heat-absorbing coating faces the outdoors, which can heat the air in the curtain wall together with the upper glass back plate with the heat-absorbing black coating combined with sunlight. When the window 6 is opened, since there is a certain vertical height difference between the upper and lower windows 6, the air in the room can enter the curtain wall from the lower window 6, be heated, and then enter the room from the upper window 6. In addition, the ventilation holes 21 at the upper end of the rib plate 2 can be opened in stages to allow a certain amount of air exchange between the indoor and outdoor areas.

[0047] 5. Winter night working conditions: like Fig. 22 In winter at night, the reflective film section 46 is located between the upper and lower reel assemblies 42, and the window 6 is closed to prevent outdoor cold radiation and heat loss to the greatest extent.

[0048] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A multifunctional curtain wall of a composite structure, comprising a plurality of curtain wall structural units spliced ​​in parallel, characterized in that: The curtain wall structural unit comprises a glass back panel (1), a rib plate (2), a pin box (3), a scroll structure system (4), a reflective plate (5) and a reflective hammer (11); the glass back panel (1) is located on the exterior of the building; the rib plate (2) is located on the outside of the glass back panel (1) and is perpendicular to the glass back panel (1); there are two pin boxes (3), which are located at the top and bottom of the rib plate (2) respectively; there are two scroll structure systems (4), which are located at the top and bottom of the rib plate (2) respectively; the glass back panel (1), the rib plate (2), the pin box (3), the scroll structure system (4), the reflective plate (5) and the reflective hammer (11); The system (4) together forms a curtain wall cavity that is approximately rectangular, and the reflective panels (5) are arranged on both sides of the cavity; the reflective panel (5) is elliptical in shape as a whole, and there are two reflective hammers (11), which are respectively located at the upper and lower focal positions of the ellipse; the glass back panel (1) is provided with switchable windows (6) at the upper and lower parts, respectively, and the glass back panel (1) above the upper window (6) is provided with a heat absorbing coating or directly a black heat absorbing panel on the side facing the outdoors, and the lower glass back panel (1) is transparent glass; and a covered vent (21) is provided on the upper side of the rib plate (2); The reel structure system (4) comprises a reel support (41), a reel assembly (42), a reel hanging rope (43), a film-free segment (44), a light-transmitting film segment (45) and a reflective film segment (46); the reel support (41) is fixedly connected to the upper and lower ends of the two ribs (2); there are two reel assemblies (42), which are respectively fixedly connected to the reel supports (41) at the upper and lower ends; the reel assembly (42) comprises a reel shell (421) and a reel (422); there are two reel hanging ropes (43), which are respectively located on both sides between the upper and lower reel assemblies (42); a film-free segment (44), a light-transmitting film segment (45) and a reflective film segment (46) are arranged in sequence from top to bottom between the two reel hanging ropes (43); the film-free segment (44), the light-transmitting film segment (45) and the reflective film segment (46) are wound on the upper and lower reel assemblies (42). , switched by rotating the upper and lower reel assemblies (42); the reflective plate (5) is a long thin plate bent into an elliptical shape, and the inner surface is coated with a mirror reflective paint with a high reflectivity to solar radiation; the top and bottom of the reflective plate (5) are connected to the pin box (3); the two reflective hammers (11) are connected to each other and rotatably connected to the pin box (3); the reflective cone (11) is an isosceles right-angled triangular prism, the surfaces of the two right-angled sides of the reflective cone (11) are coated with a paint with a high reflectivity to solar radiation, and the surface of the isosceles right-angled triangle bottom side of the reflective cone (11) is coated with a heat-absorbing coating; a reflective film light-collecting hole (47) is opened on the upper part of the reflective film segment (46), and when the reflective film segment (46) is pulled out from the reel assembly (42), the position of the reflective film light-collecting hole (47) corresponds to the upper reflective cone (11).

2. The multifunctional curtain wall of a composite structure according to claim 1, characterized in that: The pin box (3) is a rectangular box made of light aluminum alloy. Both sides of the pin box are connected to the rib plate (2) via pins (7). Bolts (8) are provided at the top and bottom of the reflective plate (5). The bolts (8) are rotatably connected to the pin box (3). The bolts (8) are connected to the reflective cone (11) via a reflective cone vertical rope (10). An electric device capable of driving the reflective cone vertical rope (10) to rotate is provided in the pin box (3).

3. The multifunctional curtain wall of a composite structure according to claim 1, characterized in that: The rib plate (2) is arranged on the edge of the glass back plate (1), and two adjacent curtain wall structure units share one rib plate (2).

4. The multifunctional curtain wall of composite structure according to claim 3, characterized in that: The rib plates (2) are installed up and down in the embedded grooves of the top and bottom floor plates of the building, and a plurality of rib plates (2) are arranged at equal intervals. The rib plates (2) and the glass back plate (1) are sealed with silicone structural adhesive.

5. A multifunctional curtain wall with a composite structure according to any one of claims 1 to 4, characterized in that: The window (6) is an electric window that is equipped with an electric device and can be opened sideways or toward the interior of the room.

6. A multifunctional curtain wall with a composite structure according to any one of claims 1 to 4, characterized in that: The lengths of the non-film section (44), the light-transmitting film section (45) and the reflective film section (46) are all equal to the length of the rib plate (2); wherein the light-transmitting film section (45) is a thin film material with high solar radiation transmittance, and the reflective film section (46) is provided with a thin film material with high solar radiation reflectivity on the outward side, and a white diffuse reflection coating on the inward side.

7. A multifunctional curtain wall with a composite structure according to any one of claims 1 to 4, characterized in that: The middle part of the reflective plate (5) is fixedly connected to the rib plate (2); the outer side of the reflective plate (5) is elastically connected to the rib plate (2) via a spring (9).

8. A multifunctional curtain wall with a composite structure according to any one of claims 1 to 4, characterized in that: The bottom of the rib plate (2) is provided with a drain hole (12) with a hole facing outward and sloping downward.

9. A method for using a multifunctional curtain wall of a composite structure according to any one of claims 1 to 4, characterized in that: By adjusting the reel drop rope (43), different functional sections of the reel structure system (4) are switched to change the curtain wall working conditions, including at least one of the following five working conditions: (1) Hot summer conditions: In hot summer weather, the entire reflective film segment (46) is located between the upper and lower reel assemblies (42); at this time, most of the sunlight is reflected by the reflective film segment (46), so that the curtain wall has excellent heat insulation performance; a small amount of sunlight enters the curtain wall cavity through the reflective film light-collecting hole (47), and is reflected by the reflective cone (11) to the upper half of the reflective plate (5). According to the reflection principle of the elliptical surface, the sunlight is reflected by the mirror reflective coating on the upper half of the reflective plate (5) to the vicinity of the lower focus of the elliptical reflective plate (5), and then reflected by the reflective cone (11) on the lower side to the reflective film segment (46). 6) on the white diffuse reflection coating on the inside, and then reflected into the indoor space; this system can enable the room to obtain lighting at a certain working surface height under the premise of minimizing heat gain and avoid glare; in addition, the light hole (47) is located at the upper part of the curtain wall, and the part heated by sunlight radiation is also located at a high position, which has a small impact on the thermal environment at human height; on the other hand, since there is a certain vertical height difference between the ventilation hole (21) at the upper end of the rib plate (2) and the lower window (6) of the glass back plate (1), the lower window (6) and the ventilation hole (21) can be opened in stages, so that a certain thermal pressure ventilation can be achieved in the room; (2) General working conditions in summer: In normal summer weather, a small portion of the light-transmitting film segment (45) and a large portion of the reflective film segment (46) are located between the upper and lower reel assemblies (42); at this time, most of the sunlight is reflected by the reflective film segment (46), so that the curtain wall has a certain heat insulation performance; a small portion of the sunlight passes through the light-transmitting film segment (45) and the upper window (6) into the room, so that the room is illuminated to a certain extent; on the other hand, there is a certain vertical height difference between the ventilation hole (21) at the upper end of the rib plate (2) and the lower window (6), and the sunlight combined with the upper glass back plate (1) provided with a heat-absorbing coating heats the air in the upper light-transmitting film segment (45) area of ​​the curtain wall space to a certain extent, thereby increasing the vertical temperature difference in the curtain wall cavity, so that excellent heat pressure ventilation is achieved in the room; (3) Transition season conditions: During the transition season, the entire non-film section (44) is located between the upper and lower scroll assemblies (42); at this time, sunlight directly passes through the non-film section (44), and then passes through the glass back panel (1) and the window (6) to enter the room, so that the room is adequately lit; on the other hand, air can also directly enter the room through the non-film section (44) and the window (6), so that good wind pressure ventilation can be achieved in the room; (4) Winter daytime working conditions: During the day in winter, the light-transmitting film section (45) is located between the upper and lower reel assemblies (42); at this time, sunlight directly passes through the light-transmitting film section (45), the glass back plate (1) and the window (6) into the room, so that the room has excellent lighting; the reflective cone (11) is rotated 180 degrees, and the side provided with the heat-absorbing coating faces the outside, and can heat the air in the curtain wall together with the upper glass back plate (1) provided with the heat-absorbing coating in combination with sunlight; the window (6) is opened, and since there is a certain vertical height difference between the upper and lower windows (6), the air in the room can enter the curtain wall through the lower window (6) and be heated, and then enter the room through the upper window (6); in addition, the ventilation holes (21) at the upper end of the rib plate (2) can be opened in stages, so that a certain amount of air exchange can be carried out between the indoor and outdoor areas; (5) Winter night working conditions: At night in winter, the reflective film section (46) is located between the upper and lower reel assemblies (42), and the window (6) is closed to prevent outdoor cold radiation and heat loss to the greatest extent.

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