Heat collection type double-layer curtain wall

Abstract

The utility model relates to a heat collection type double-layer curtain wall, belongs to the technical field of curtain walls, and solves the problems that in the prior art, when a window is opened for ventilation, a large amount of hot air or cold air is directly blown into a room, the indoor temperature is rapidly changed, and indoor personnel feel uncomfortable. The ventilation device comprises an inner panel, an outer panel, an exhaust baffle and an air inlet baffle, the inner panel and the outer panel are both arranged between an upper layer floor and a lower layer floor, the two ends of the outer panel are connected with the end of the upper layer floor and the end of the lower layer floor respectively, and a ventilation partition plate is arranged on the inner panel. The upper end and the lower end of the outer panel are provided with an air outlet and an air inlet respectively. Sunlight irradiates and heats air between the inner panel and the outer panel to enable the air to flow upwards, the ventilation partition plate is opened towards the direction of the outer panel, indoor air can flow towards the direction of the outer panel, hot air or cold air is not directly blown into a room, the indoor air can be slowly updated, the indoor temperature is slowly changed, and the comfort level of personnel is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of curtain wall, especially a heat collecting double-layer curtain wall. BACKGROUND

[0002] Double skin facade is widely used in high-rise buildings abroad, can solve the problem (facade image, big wind pressure, safety) that high-rise building is difficult to open window and ventilate, and has remarkable advantages in ventilation, heat preservation, noise reduction and other aspects, has good energy-saving effect. The cavity formed by the inner and outer double skin facade has big thermal pressure under big temperature difference, and is easy to form "chimney effect".

[0003] At present, the building has strict requirements on fire prevention, except that the ventilation duct well, air supply duct well, smoke exhaust duct well, gas duct vertical well that must be ventilated and other vertical wells with special requirements can not be separated at the floor slab, other vertical wells should take fire separation measures at each floor slab, and the fire resistance of the fire separation assembly should not be lower than the fire resistance of the floor slab, so the double-layer curtain wall cannot realize the cavity of multi-storey high in China, and the interlayer must be blocked. The insufficient height of the cavity leads to small thermal pressure difference and poor thermal pressure ventilation effect.

[0004] Especially in the regions of China where it is hot in summer and warm in winter and the solar radiation is strong, the ventilation demand is large in high temperature and high humidity in summer, but direct window ventilation will lead to a large amount of hot wind blowing into the room, causing the indoor temperature to rise rapidly, and the indoor personnel to feel uncomfortable. INVENTION CONTENTS

[0005] In view of the above analysis, the utility model embodiment aims to provide a heat collecting double-layer curtain wall, to solve the problem that in the prior art, the window is opened for ventilation, a large amount of hot wind or cold wind directly blows into the room, the indoor temperature changes rapidly, and the indoor personnel feels uncomfortable.

[0006] The purpose of the utility model is mainly realized through the following technical schemes:

[0007] A heat collecting double-layer curtain wall, comprising an inner panel, an outer panel, an exhaust baffle and an air inlet baffle, the inner panel and the outer panel are arranged between the upper floor slab and the lower floor slab, and the upper and lower ends of the outer panel are respectively provided with an exhaust port and an air inlet port; the inner panel is provided with a ventilation port, and the ventilation port is provided with a ventilation partition plate;

[0008] The exhaust baffle is arranged on the exhaust port, the air inlet baffle is arranged on the air inlet port, and the exhaust baffle and the air inlet baffle are respectively rotatably connected with the outer panel;

[0009] The inner panel and the outer panel are a ventilation area, the outer panel is irradiated by sunlight, the ventilation area can be heated, the air in the ventilation area is heated to flow upward, and is discharged through the exhaust port, fresh air can enter the ventilation area through the air inlet, and a continuous upward airflow can be generated in the ventilation area; when the ventilation baffle is opened towards the outer panel, indoor air can flow towards the outer panel through the ventilation port under the driving of the upward airflow, indoor air can be sucked into the room, indoor air can be slowly updated, hot air or cold air cannot be directly blown into the room, and indoor temperature changes slowly.

[0010] Further, a transmission unit and a driving unit are further included, the transmission unit is used for simultaneously opening or closing the exhaust baffle and the air inlet baffle, and the driving unit is used for driving the transmission unit.

[0011] Further, the transmission unit includes a transmission rod and a transmission clamp, the transmission clamp is arranged on the inner panel, and the transmission rod passes through the transmission clamp; the transmission rod can slide along the outer wall of the inner panel under the constraint of the transmission clamp.

[0012] Further, the transmission unit further includes a first connecting rod, one end of the first connecting rod is hingedly connected with one end of the transmission rod, and the other end of the first connecting rod is hingedly connected with the side wall of the exhaust baffle; the transmission rod slides to drive the first connecting rod to push and pull the exhaust baffle, and then the exhaust port is opened or closed.

[0013] Further, the transmission unit further includes a second connecting rod, one end of the second connecting rod is hingedly connected with the other end of the transmission rod, and the other end of the second connecting rod is hingedly connected with the side wall of the air inlet baffle; the transmission rod slides to drive the second connecting rod to push and pull the air inlet baffle, and then the air inlet is opened or closed.

[0014] Further, one end of the transmission rod is provided with a rack; the driving unit includes a driving rod and a driving clamp, the driving clamp is arranged on the wall or the lower floor in the room, and the driving rod passes through the driving clamp; the driving rod can rotate in the driving clamp.

[0015] Further, the driving unit further includes a gear and a handle, the gear and the handle are arranged at two ends of the driving rod respectively; the gear can be connected with the rack, the handle is actuated, the driving rod drives the gear to rotate, and then the rack and the transmission rod slide along the outer wall of the inner panel.

[0016] Further, a locking unit is further included, the locking unit is used for locking the driving unit; the locking unit includes a movable block and a hinge pin, the movable block is fixedly connected with the hinge pin, and the hinge pin is rotationally connected with a hinge hole of the handle.

[0017] Further, the locking unit further comprises a clamping block and a clamping seat, the clamping seat is arranged on the wall or the lower floor in the room, the clamping seat is provided with a clamping groove, and the clamping block is arranged on the movable block; the clamping block can be connected with the clamping groove, the movable block and the handle are prevented from rotating, the driving unit and the transmission unit are prevented from moving, and the positions of the exhaust baffle and the air inlet baffle are prevented from changing.

[0018] Further, the locking unit further comprises a torsional spring, the torsional spring is sleeved on the hinge pin, one end of the torsional spring is connected with the hinge pin, the other end of the torsional spring is connected with the handle, and the torsional spring is used for pushing the movable block away from the driving rod, so that the clamping block is prevented from being separated from the clamping groove.

[0019] Further, the locking unit further comprises a torsional spring, the torsional spring is sleeved on the hinge pin, one end of the torsional spring is connected with the hinge pin, the other end of the torsional spring is connected with the handle, and the torsional spring is used for pushing the movable block away from the driving rod, so that the clamping block is prevented from being separated from the clamping groove.

[0020] Compared with the prior art, the utility model at least can realize following beneficial effect one:

[0021] (1) the utility model discloses the air exchange area between the inner panel and the outer panel, the sunlight irradiation the outer panel of the utility model discloses, can heat the air exchange area, the air of air exchange area is heated and flows upward, and the fresh air can enter the air exchange area by the air inlet, and the continuous updraft can be produced in the air exchange area;When the ventilation baffle opens to the outer panel direction, under the drive of the updraft, the air in the room can flow to the direction of the outer panel through the ventilation opening, and the air in the building can be sucked into the room, and the indoor air can be slowly updated, and the hot air or cold air is not directly blown into the room, and the indoor temperature slowly changes, which is beneficial to the health of personnel;

[0022] (2) the user only needs to turn the handle of the utility model in the room, and the driving rod can drive the gear to rotate, and then drive the rack and the transmission rod to slide along the outer wall of the inner panel, push and pull the first connecting rod and the exhaust baffle, the second connecting rod and the air inlet baffle, open or close the exhaust opening and the air inlet simultaneously, without going to the outside to open or close the exhaust baffle and the air inlet baffle, the user is convenient to open and close the exhaust opening and the air inlet;

[0023] (3) the clamping block of the utility model can be connected with the clamping groove, the movable block and the handle are prevented from rotating, the driving unit and the transmission unit are prevented from moving, and the positions of the exhaust baffle and the air inlet baffle are prevented from changing.

[0024] (4) When the movable block of this utility model is moved, the locking block can disengage from the slot and the handle can rotate; the torsion spring is used to push the movable block away from the drive rod to prevent the locking block from disengaging from the slot, thereby preventing the handle from rotating.

[0025] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0026] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0027] Figure 1 This is a schematic diagram of the longitudinal section of a double-layer curtain wall.

[0028] Figure 2 This is a schematic diagram of the overall structure of the switching mechanism in Example 1;

[0029] Figure 3 This is a schematic diagram of the overall structure of the switching mechanism in Example 2;

[0030] Figure 4 This is a schematic diagram of the exploded structure of the locking unit.

[0031] Figure label:

[0032] 1-Inner panel; 2-Outer panel; 3-Exhaust damper; 4-Inlet damper; 5-Transmission unit; 6-Drive unit; 7-Locking unit; 11-Ventilation partition; 51-Transmission rod; 52-Transmission clamp; 53-First connecting rod; 54-Second connecting rod; 61-Drive rod; 62-Drive clamp; 63-Gear; 64-Handle; 71-Moving block; 72-Hinge pin; 73-Clamping block; 74-Clamping seat; 75-Torsion spring; 100-Upper floor slab; 200-Lower floor slab. Detailed Implementation

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0034] Example 1:

[0035] A specific embodiment of this utility model is as follows: Figure 1As shown in the drawings, the application discloses a heat collecting double-layer curtain wall (hereinafter referred to as double-layer curtain wall), which comprises an inner panel 1 and an outer panel 2, the inner panel 1 and the outer panel 2 are arranged between an upper floor 100 and a lower floor 200, two ends of the outer panel 2 are connected with the end portions of the upper floor 100 and the lower floor 200 respectively, the inner panel 1 is provided with a ventilation opening and a ventilation baffle 11, and the upper and lower ends of the outer panel 2 are provided with an air outlet and an air inlet respectively. The space between the double-layer curtain wall and the upper floor 100 and the lower floor 200 is an indoor space.

[0036] Sunlight irradiates the outer panel 2, which can heat the outer panel 2, the inner panel 1 and the outer panel 2 form an air exchange area, the air in the air exchange area is heated to flow upwards and is discharged through the air outlet, fresh air can enter the air exchange area through the air inlet, and a continuous upward airflow is generated in the air exchange area. When the ventilation baffle 11 is opened towards the outer panel 2, a negative pressure is formed in the ventilation opening by the upward airflow, and the air in the indoor space can flow towards the outer panel 2 through the ventilation opening. The air in the building, such as a corridor or a fresh air system, can be sucked into the indoor space, the indoor air can be slowly updated, the hot air or cold air cannot directly blow into the indoor space, the indoor temperature slowly changes, and the health of the personnel is beneficial.

[0037] Preferably, in order to shield the air outlet and the air inlet, the double-layer curtain wall of the embodiment further comprises an air outlet baffle 3 and an air inlet baffle 4, the air outlet baffle 3 is arranged on the air outlet, the air inlet baffle 4 is arranged on the air inlet, and the air outlet baffle 3 and the air inlet baffle 4 are rotatably connected with the outer panel 2. The air outlet baffle 3 is used for opening and closing the air outlet, and the air inlet baffle 4 is used for opening and closing the air inlet.

[0038] Preferably, in order to open or close the air outlet baffle 3 and the air inlet baffle 4 in the indoor space, the double-layer curtain wall of the embodiment further comprises a switching mechanism.

[0039] Preferably, as shown in the drawings, Figure 1 and Figure 2 the switching mechanism of the embodiment comprises a transmission unit 5 and a driving unit 6, the transmission unit 5 is arranged on the inner panel 1, the transmission unit 5 is used for simultaneously opening or closing the air outlet baffle 3 and the air inlet baffle 4, the driving unit 6 is arranged on a wall or the lower floor 200 in the indoor space, and the driving unit 6 is used for driving the transmission unit 5. By operating the driving unit 6 and the transmission unit 5, the user can simultaneously open or close the air outlet baffle 3 and the air inlet baffle 4 in the indoor space.

[0040] Preferably, the transmission unit 5 comprises a transmission rod 51, a transmission clamp 52, a first connecting rod 53 and a second connecting rod 54, the transmission clamp 52 is arranged on the inner panel 1, the transmission rod 51 passes through the transmission clamp 52, the transmission rod 51 can slide along the outer wall of the inner panel 1 under the constraint of the transmission clamp 52; one end of the first connecting rod 53 is hinged with one end of the transmission rod 51, the other end of the first connecting rod 53 is hinged with the side wall of the air exhaust baffle 3, the transmission rod 51 slides and can drive the first connecting rod 53 to push and pull the air exhaust baffle 3, thereby opening or closing the air exhaust port; one end of the second connecting rod 54 is hinged with the other end of the transmission rod 51, the other end of the second connecting rod 54 is hinged with the side wall of the air inlet baffle 4, the transmission rod 51 slides and can drive the second connecting rod 54 to push and pull the air inlet baffle 4, thereby opening or closing the air inlet port.

[0041] Preferably, one end of the transmission rod 51 is provided with a rack (not shown in the figure). The driving unit 6 comprises a driving rod 61, a driving clamp 62, a gear 63 and a handle 64, the driving clamp 62 is arranged on the wall or the lower floor 200 in the room, the driving rod 61 passes through the driving clamp 62, the driving rod 61 can rotate in the driving clamp 62, and the gear 63 and the handle 64 are arranged at two ends of the driving rod 61 respectively. The gear 63 can be connected with the rack, the handle 64 is actuated, the driving rod 61 can drive the gear 63 to rotate, thereby driving the rack and the transmission rod 51 to slide along the outer wall of the inner panel 1.

[0042] Compared with the prior art, the air between the inner panel 1 and the outer panel 2 of the embodiment can flow upwards under the sunlight irradiation of the outer panel 2, the ventilation baffle 11 is opened in the direction of the outer panel 2, the air in the room can flow in the direction of the outer panel 2, the air in the building can be sucked into the room, the indoor air can be slowly updated, the hot air or cold air is not directly blown into the room, the indoor temperature slowly changes, and the health of the personnel is beneficial; the user only needs to actuate the handle 64 in the room, the driving rod 61 can drive the gear 63 to rotate, thereby driving the rack and the transmission rod 51 to slide along the outer wall of the inner panel 1, and the first connecting rod 53 and the air exhaust baffle 3, the second connecting rod 54 and the air inlet baffle 4 are pushed and pulled, and the air exhaust port and the air inlet port are simultaneously opened or closed, without going to the outside to open or close the air exhaust baffle 3 and the air inlet baffle 4, the user is convenient to open and close the air exhaust port and the air inlet port.

[0043] Embodiment 2:

[0044] Another specific embodiment of the utility model, as Figure 3 shown, on the basis of embodiment 1, the handle 64 is increased with the hinged hole, and the locking unit 7 is increased, the locking unit 7 can lock the driving unit 6, prevent the air exhaust baffle 3 and the air inlet baffle 4 from being opened or closed automatically.

[0045] Preferably, as Figure 4As shown, the locking unit 7 comprises a movable block 71, a hinge pin 72, a clamping block 73 and a clamping seat 74, the movable block 71 is fixedly connected with the hinge pin 72, the hinge pin 72 is rotatably connected with the hinge hole of the handle 64, the clamping seat 74 is arranged on the wall or the lower floor 200 in the room, the clamping seat 74 is provided with a clamping groove (not shown in the figure), and the clamping block 73 is arranged on the movable block 71. The clamping block 73 can be connected with the clamping groove, the movable block 71 and the handle 64 are prevented from rotating, the driving unit 6 and the transmission unit 5 are prevented from acting, and the positions of the exhaust baffle 3 and the air inlet baffle 4 are prevented from changing. The clamping block 73 can be separated from the clamping groove by pulling the movable block 71, and the handle 64 can be rotated.

[0046] Preferably, the locking unit 7 further comprises a torsional spring 75, the torsional spring 75 is sleeved on the hinge pin 72, one end of the torsional spring 75 is connected with the hinge pin 72, and the other end of the torsional spring 75 is connected with the handle 64. The torsional spring 75 is used for pushing the movable block 71 away from the driving rod 61, preventing the clamping block 73 from separating from the clamping groove, and preventing the handle 64 from rotating.

[0047] Compared with embodiment 1, the clamping block 73 of the embodiment can be connected with the clamping groove, the movable block 71 and the handle 64 are prevented from rotating, the driving unit 6 and the transmission unit 5 are prevented from acting, and the positions of the exhaust baffle 3 and the air inlet baffle 4 are prevented from changing. The clamping block 73 can be separated from the clamping groove by pulling the movable block 71, and the handle 64 can be rotated; the torsional spring 75 is used for pushing the movable block 71 away from the driving rod 61, preventing the clamping block 73 from separating from the clamping groove, and preventing the handle 64 from rotating.

[0048] Embodiment 3:

[0049] Another specific embodiment of the utility model, in order to enhance the flow speed of air in the ventilation area, on the basis of embodiment 1 or 2, increase heat absorption unit (not shown in the figure) and heat insulation unit (not shown in the figure), heat absorption unit is arranged on the inner side wall of the outer panel, heat insulation unit is arranged on the outer side wall of the inner panel. Sunlight passes through the transparent outer panel, heats the air in the ventilation area through the heat absorption unit. The heat insulation layer reflects sunlight, further heats the air and prevents solar radiation heat from entering the room.

[0050] Preferably, the heat absorption unit comprises a solar selective absorption layer and a metal louver, the solar selective absorption layer is arranged on the inner side wall of the outer panel, and the metal louver is arranged on the solar selective absorption layer. The solar selective absorption layer and the metal louver are used to convert solar energy into heat energy and heat the air in the ventilation area.

[0051] The solar energy selective absorption layer can realize solar energy photo-thermal conversion. The mechanism of the solar energy selective absorption layer is to realize high absorption rate (a) of the coating base body to the solar energy in the 0.3-2.5 μm wave band (i.e. visible light region and near infrared region) and low thermal emission rate (ε) of the coating base body to the solar energy in the 2.5-50 μm wave band (i.e. far infrared region), thereby improving the absorption capacity of the heat absorbing body to the solar radiation energy and reducing the capacity of the heat absorbing body to the environmental scattered heat.

[0052] Preferably, the heat insulation unit is a heat insulation film, which is arranged on the outer side wall of the inner panel. The heat insulation principle of the heat insulation film is to adjust the sunlight transmitted through the glass: absorbing ultraviolet rays, reflecting infrared rays, and selectively transmitting part of visible light to realize indoor lighting. In winter, the heat insulation film can also reflect indoor long-wave far infrared rays to play a role of indoor heat preservation; in summer, the heat insulation film can filter excess solar radiation heat.

[0053] The above merely describes a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A heat-collecting double-layer curtain wall, characterized in that, It includes an inner panel (1), an outer panel (2), an exhaust baffle (3), and an air inlet baffle (4). The inner panel (1) and the outer panel (2) are both located between the upper floor slab (100) and the lower floor slab (200). The upper and lower ends of the outer panel (2) are respectively provided with an exhaust port and an air inlet. The inner panel (1) is provided with a ventilation opening, and the ventilation opening is provided with a ventilation baffle (11). The exhaust baffle (3) is set on the exhaust port, and the air inlet baffle (4) is set on the air inlet. The exhaust baffle (3) and the air inlet baffle (4) are rotatably connected to the outer panel (2). The space between the inner panel (1) and the outer panel (2) is a ventilation area. When sunlight shines on the outer panel (2), it can heat the ventilation area. The air in the ventilation area is heated and flows upward and is discharged through the exhaust vent. Fresh air can enter the ventilation area through the air inlet, and a continuous upward airflow can be generated in the ventilation area. When the ventilation partition (11) is opened towards the outer panel (2), the indoor air can flow towards the outer panel (2) through the ventilation vent under the drive of the upward airflow. The indoor air can be slowly renewed, and hot or cold air will not blow directly into the room, and the indoor temperature will change slowly.

2. The heat-collecting double-layer curtain wall according to claim 1, characterized in that, It also includes a transmission unit (5) and a drive unit (6), wherein the transmission unit (5) is used to simultaneously open or close the exhaust baffle (3) and the air inlet baffle (4), and the drive unit (6) is used to drive the transmission unit (5).

3. The heat-collecting double-layer curtain wall according to claim 2, characterized in that, The transmission unit (5) includes a transmission rod (51) and a transmission clamp (52). The transmission clamp (52) is disposed on the inner panel (1). The transmission rod (51) passes through the transmission clamp (52). The transmission rod (51) can slide along the outer wall of the inner panel (1) under the constraint of the transmission clamp (52).

4. The heat-collecting double-layer curtain wall according to claim 3, characterized in that, The transmission unit (5) further includes a first connecting rod (53), one end of which is hinged to one end of the transmission rod (51), and the other end of which is hinged to the side wall of the exhaust baffle (3). The transmission rod (51) slides, which can drive the first connecting rod (53) to push and pull the exhaust baffle (3), thereby opening or closing the exhaust port.

5. The heat-collecting double-layer curtain wall according to claim 3, characterized in that, The transmission unit (5) further includes a second connecting rod (54), one end of which is hinged to the other end of the transmission rod (51), and the other end of which is hinged to the side wall of the air inlet baffle (4). The transmission rod (51) slides, which can drive the second connecting rod (54) to push and pull the air inlet baffle (4), thereby opening or closing the air inlet.

6. The heat-collecting double-layer curtain wall according to claim 3, characterized in that, The drive unit (6) includes a drive rod (61), a drive clamp (62), a gear (63), and a handle (64). The drive clamp (62) is installed on the indoor wall or the lower floor slab (200). The drive rod (61) passes through the drive clamp (62) and can rotate within the drive clamp (62). The gear (63) and the handle (64) are respectively installed at both ends of the drive rod (61). One end of the transmission rod (51) is provided with a rack. The gear (63) can be connected to the rack. By turning the handle (64), the drive rod (61) can drive the gear (63) to rotate, thereby driving the rack and the transmission rod (51) to slide along the outer wall of the inner panel (1).

7. The heat-collecting double-layer curtain wall according to claim 6, characterized in that, It also includes a locking unit (7) for locking the drive unit (6); the locking unit (7) includes a movable block (71) and a hinge pin (72), the movable block (71) is fixedly connected to the hinge pin (72), and the hinge pin (72) is rotatably connected to the hinge hole of the handle (64).

8. The heat-collecting double-layer curtain wall according to claim 7, characterized in that, The locking unit (7) further includes a locking block (73) and a locking seat (74). The locking seat (74) is installed on the indoor wall or the lower floor slab (200). The locking seat (74) is provided with a locking groove. The locking block (73) is installed on the movable block (71). The locking block (73) can be connected to the locking groove to prevent the movable block (71) and the handle (64) from rotating, thereby preventing the drive unit (6) and the transmission unit (5) from operating and preventing the position of the exhaust baffle (3) and the air inlet baffle (4) from changing.

9. The heat-collecting double-layer curtain wall according to claim 8, characterized in that, The locking unit (7) also includes a torsion spring (75), which is sleeved on the hinge pin (72). One end of the torsion spring (75) is connected to the hinge pin (72), and the other end of the torsion spring (75) is connected to the handle (64). The torsion spring (75) is used to push the movable block (71) away from the drive rod (61) to prevent the locking block (73) from disengaging from the slot.

10. The heat-collecting double-layer curtain wall according to claim 1, characterized in that, It also includes a solar selective absorption layer, metal louvers, and a heat insulation film. The solar selective absorption layer is installed on the inner wall of the outer panel, and the metal louvers are installed on the solar selective absorption layer. The solar selective absorption layer and the metal louvers are used to convert solar energy into heat energy to heat the air in the ventilation area. The heat insulation film is installed on the outer wall of the inner panel. The heat insulation layer is used to reflect sunlight, further heat the air in the ventilation area, and prevent solar radiation heat from entering the room.

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