Energy-saving waterproof building opening structure
By automatically closing the operable windows of the glass curtain wall through water collection tanks and sensor components, the problem of rainwater entering the room is solved, increasing indoor air humidity and energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING XIFEI CENTURY CURTAIN WALL ENG CO LTD
- Filing Date
- 2023-03-28
- Publication Date
- 2026-07-10
AI Technical Summary
The existing glass curtain wall has the defect that it cannot be closed in time after the operator leaves, resulting in rainwater entering the room.
The system uses a water collection trough and sensing components in conjunction with an electric push rod. When rainwater accumulates to a certain amount, the sensor is triggered in the water collection trough to automatically shut off the opening fan. Combined with the recess formed by the connecting plate and glass, it accelerates rainwater collection and provides a buffer time.
It enables the timely shutdown of the fan when it turns on and when rain comes in the absence of the operator, increasing the buffer time for indoor air humidity, saving energy and reducing heat loss.
Smart Images
Figure CN116480246B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of glass curtain walls, and in particular to an energy-saving and waterproof building opening structure. Background Technology
[0002] Glass curtain walls are now widely used in existing buildings, enhancing both lighting and aesthetics. Modern high-rise buildings often employ double-glazed windows, which combine mirrored and ordinary glass, with the interlayer filled with dry air or inert gas. Rooms using double-glazed curtain walls are warm in winter and cool in summer, significantly improving the living environment.
[0003] The building uses glass curtain walls for decoration, but good ventilation is required, which in turn requires operable windows in the glass curtain wall. The operable area needs to be determined according to current specifications and the overall curtain wall area. There are two ways to open the operable windows: electric opening and manual mechanical opening.
[0004] In actual use, the operator turns on the electric fan to ventilate the room. When the operator leaves and the weather changes and it rains, the operator cannot return in time to operate the fan. As a result, the fan cannot be turned off in time, and rainwater enters the room. Summary of the Invention
[0005] In order to ensure that the openable fan can be closed in time when rainwater arrives without the operator's presence, this application provides an energy-saving and waterproof building opening structure.
[0006] The energy-saving and waterproof building opening structure provided in this application adopts the following technical solution:
[0007] An energy-saving and waterproof building opening mechanism includes an opening sash and an electric actuator. Both the opening sash and the electric actuator are connected to the curtain wall joists. One end of the electric actuator is hinged to the curtain wall joists, and the other end is hinged to the opening sash. The opening sash includes glass, a frame, and an opening frame. The frame is fixedly connected to the edge of the glass, and the opening frame is fixed to the curtain wall beam. When the opening sash is closed, the frame abuts against the opening frame. The frame includes a protective edge and an inner lining, which are fixedly connected. A connecting plate and a supporting plate are detachably connected to the protective edge. One end of the connecting plate is detachably connected to the protective edge, and the other end is fixedly connected to the supporting plate. A water collection trough is provided on the supporting plate. When the opening sash is open, the water collection trough is vertical with its opening facing upwards. A sensing component is installed inside the water collection trough. The sensing component sends a retraction signal to the electric actuator after rainwater accumulates in the water collection trough.
[0008] By adopting the above technical solution, when the openable fan is in the open state, rainwater drips directly into the water collection tank on rainy days. At the same time, rainwater adhering to the outer wall of the glass will accumulate to a certain weight and slide down due to gravity. Then, it will slide into the water collection tank along the connecting plate and the supporting plate. The rainwater accumulated in the water collection tank will trigger the sensor component to send a signal, and the electric push rod will retract, ultimately returning the openable fan to the closed state. This achieves the effect of the openable fan being able to close in time when rain comes, even when the operator is not present.
[0009] Optionally, a baffle is provided at the bottom of the water collection tank. The baffle can only rotate inward into the water collection tank. A drain rod is fixed on the crossbeam. When the opening fan is not open, the end of the drain rod away from the crossbeam lifts up the baffle.
[0010] By adopting the above technical solution, the baffle can only rotate in one direction, and the water in the water collection tank cannot be actively discharged. When the fan returns to the closed state, the drain rod will lift the baffle, thereby draining the water in the water collection tank and making it easier for the water collection tank to be used next time.
[0011] Optionally, a flap is rotatably provided on the support plate. The flap is located inside the water collection tank. The rotation axis between the flap and the support plate is located above the center of the flap. When the water collection tank is vertical, the edge of the flap abuts against the inner wall of the water collection tank.
[0012] By adopting the above technical solution, the flap is located inside the water collection tank, which can avoid the wind and reduce the occurrence of the flap being blown up by the wind. The presence of the flap also prevents other debris from falling into the flap.
[0013] Optionally, the support plate is provided with a first arc plate and a second arc plate. The first arc plate and the second arc plate are located in the water collection tank and on both sides of the flip plate. When the opening fan is not open, the first arc plate, the second arc plate and the flip plate separate the upper and lower spaces of the water collection tank.
[0014] By adopting the above technical solution, the flap only comes into contact with the inner wall of the water collection tank when the opening fan is open. When the opening fan is closed, the flap remains horizontal, and a gap will exist between the outer wall of the flap and the inner wall of the water collection tank. After a long period of time, debris will enter the water collection tank through the gap, thus affecting the water collection effect of the water collection tank after the opening fan is opened in rainy weather. This will affect the sensor and cause the opening fan to fail to close in time. Therefore, the first arc plate and the second arc plate ensure effective water accumulation in the water collection tank and ensure that there are no foreign objects in the internal space of the water collection tank.
[0015] Optionally, a protrusion is fixed to the side of the edge protector near the glass, and a positioning rod is fixed to the side wall of the connecting plate facing the glass. A positioning block is fixed to the end of the positioning rod near the glass. Along the direction away from the glass, the positioning block and the protrusion limit each other. At this time, the end of the connecting plate away from the bearing plate abuts against the glass, and the end of the bearing plate away from the connecting plate abuts against the outer wall of the edge protector. The edge protector, the connecting plate, and the bearing plate are triangular in shape. The positioning rod has elastic deformation capability.
[0016] By adopting the above technical solution, the connecting plate and the edge protector are detachably connected through the positioning rod, positioning block, and protrusion. The connection method is a snap-fit, making installation convenient and quick. The edge protector, connecting plate, and bearing plate form a triangular shape. When the sash is open, the outer glass wall and the connecting plate form a downward recess. This recess collects rainwater dripping from the outer glass wall. Only when the recess is full of rainwater will it flow into the water collection groove. This maximizes the collection of drizzle, accelerating the closing time of the sash. If only the collection groove were used for direct collection, drizzle would be much less effectively collected. In certain weather conditions, it takes too long to collect enough water to trigger the sensor components. The recess formed between the connecting plate and the outer glass wall accelerates rainwater collection. In the event of heavy rain, this recess also acts as a buffer, delaying the closing of the openable fan. The purpose of the openable fan is to circulate air, and heavy rain is often accompanied by strong winds, which accelerates indoor air circulation. This ensures effective air exchange to the maximum extent without soaking the room. The connecting plate and glass work together to make full use of the structure and achieve resource conservation.
[0017] Optionally, the sensing component includes a pressure sensor, a buoyancy ball, and a rod. The bottom of the water collection tank has a slot. The pressure sensor is fixed to the bottom of the slot. One end of the rod is inserted into the slot and abuts against the pressure sensor, while the other end is fixedly connected to the buoyancy ball, which is located outside the slot.
[0018] By adopting the above technical solution, the sensor component will only be triggered when the water in the collection tank accumulates to a certain level. This provides a buffer time for the opening and closing of the fan, ensuring indoor air circulation and increasing indoor humidity, which is especially important in dry northern environments where opening windows to increase humidity is crucial on rainy days. When the water in the collection tank accumulates to a certain level, it lifts the buoyancy ball upwards. At this point, the pressure sensor no longer experiences the combined pressure of the buoyancy ball and the rod, causing a pressure change and triggering an alarm from the pressure sensor.
[0019] Optionally, the buoyancy sphere is hollow inside.
[0020] By adopting the above technical solution, the buoyancy ball is hollow inside, which makes it easy for water to accumulate and lift the buoyancy ball.
[0021] Optionally, the sensing component includes a water immersion sensor and a sponge. Both the sponge and the water immersion sensor are fixed to the side wall of the flap facing the bottom of the water collection tank. The sponge surrounds the water immersion sensor and there is a distance between the sponge and the water immersion sensor. The sensing component is fixed at the center of the flap and can remain horizontal when the flap is stationary.
[0022] By adopting the above technical solution, the water immersion sensor will only trigger an alarm when it comes into contact with water. The water immersion sensor will only come into contact with water when the water collection tank is full. In order to prevent rainwater from flowing along the flap to the water immersion sensor, a sponge is used to protect the water immersion sensor, thus ensuring that the water immersion sensor will only alarm when the water collection tank is full of rainwater.
[0023] Optionally, the flap has a groove on its side wall facing the bottom of the water collection tank. The groove is located at the center of the flap, the sensing component is located in the groove, and a ring is fixed on the flap, which is wrapped around the outside of the groove.
[0024] By adopting the above technical solution, when rainwater flows along the flap to the edge of the groove, it will drip down, reducing the amount of rainwater flowing along the flap to the sponge, and ensuring that the water collection tank is full of water when the water immersion sensor is triggered.
[0025] Optionally, there is a gap between the edge protector and the inner liner, and a glass support and a heat insulation strip are fixed between the edge protector and the inner liner. The glass support is used to support the glass, and the heat insulation strip is located below the glass support. One end of the heat insulation strip is fixedly connected to the edge protector, and the other end is fixedly connected to the inner liner.
[0026] By adopting the above technical solution, there is a gap between the edge protector and the inner lining, which is connected by the thermal insulation strip to form a broken bridge structure, thereby achieving an energy saving effect of 20% and reducing heat loss. The presence of the glass support directly cooperates with the aluminum profile to bear the weight of the glass, so that the thermal insulation strip does not bear vertical shear force.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] 1. The water collection tank, in conjunction with the sensing components, not only enables the fan to be turned off promptly when rain falls, even when the operator is not present, but also provides time for air exchange to increase indoor air humidity in the early stages of rainy weather, so that the fan is not turned off immediately, but rather there is a certain buffer time, which gives time to increase indoor air humidity in the dry northern air.
[0029] 2. The recess formed by the connecting plate and the glass provides time for the indoor air humidity to increase in the early stages of rainy weather. At the same time, it makes full use of the structural design of the connecting plate and the glass to achieve the effect of making full use of resources, saving energy and reducing emissions.
[0030] 3. There is a gap between the edge protector and the inner lining, which is connected by a thermal break strip to form a thermal break structure, thereby achieving an energy saving effect of 20% and reducing heat loss. The presence of the glass support directly works with the aluminum profile to bear the weight of the glass, so that the thermal break strip does not bear vertical shear force. Attached Figure Description
[0031] Figure 1 This is a structural schematic diagram of an embodiment of this application;
[0032] Figure 2 yes Figure 1 A magnified view of part A in the middle;
[0033] Figure 3 This is a schematic diagram of the open fan in the first embodiment.
[0034] Figure 4 This is a schematic diagram of the fan in the open state in Embodiment 2;
[0035] Figure 5 yes Figure 4 A magnified view of part B in the middle section;
[0036] Figure 6 This is a schematic diagram of the structure of Embodiment 3.
[0037] In the diagram, 1. Opening fan; 11. Glass; 12. Frame; 121. Edge protector; 122. Liner; 13. Opening frame; 2. Electric push rod; 3. Connecting plate; 31. Positioning rod; 32. Positioning block; 33. Protrusion; 34. Drainage channel; 4. Support plate; 41. Water collection tank; 411. Slot; 42. Baffle; 43. Water discharge rod; 44. First arc plate; 45. Second arc plate; 5. Sensing component; 51. Pressure sensor; 52. Buoyancy ball; 53. Insert rod; 54. Water immersion sensor; 55. Sponge; 6. Flip plate; 61. Groove; 7. Heat insulation strip; 8. Glass support. Detailed Implementation
[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0039] This application discloses an energy-saving and waterproof building opening structure.
[0040] Example 1: Reference Figure 1 and Figure 2An energy-saving and waterproof building opening structure includes an opening fan 1 and an electric push rod 2. Both the opening fan 1 and the electric push rod 2 are connected to the curtain wall keel. One end of the electric push rod 2 is hinged to the curtain wall keel, and the other end is hinged to the opening fan 1. The opening fan 1 is equipped with a sensor component 5, which can detect rainy weather. When rainy weather arrives, the electric push rod 2 is activated to close the opening fan 1.
[0041] refer to Figure 1 and Figure 2 The operable sash 1 includes glass 11, frame 12 and operable frame 13. The operable frame 13 is fixed on the curtain wall beam. The frame 12 includes a guard 121 and an inner liner 122. There is a distance between the guard 121 and the inner liner 122. A heat insulation strip 7 is provided between the guard 121 and the inner liner 122. One end of the heat insulation strip 7 is fixedly connected to the guard 121 and the other end is fixedly connected to the inner liner 122. The glass 11 is clamped between the guard 121 and the inner liner 122.
[0042] refer to Figure 2 and Figure 3 A connecting plate 3 and a bearing plate 4 are detachably connected to the edge guard 121. One end of the connecting plate 3 abuts against the outer wall of the glass 11, and the other end is fixedly connected to the bearing plate 4. The edge guard 121, the connecting plate 3, and the bearing plate 4 are triangular in shape, and the included angle between the connecting plate 3 and the outer wall of the glass 11 is an obtuse angle. A protrusion 33 is fixed on the side of the edge guard 121 near the glass 11. A positioning rod 31 is fixed on the side wall of the connecting plate 3 facing the glass 11. A positioning block 32 is fixed on the end of the positioning rod 31 near the glass 11. The positioning rod 31 is made of a material with deformation capability, such as aluminum alloy. During installation, one end of the connecting plate 3 is abutted against the outer wall of the glass 11, the positioning rod 31 is aligned with the protrusion 33, and the connecting plate 3 is pressed. The protrusion 33 and the positioning block 32 are squeezed against each other, and then the positioning rod 31 deforms. Finally, the positioning block 32 passes through the gap between the protrusion 33 and the outer wall of the glass 11, completing the limiting.
[0043] refer to Figure 2 and Figure 3One end of the connecting plate 3 away from the glass 11 is fixedly connected to one end of the supporting plate 4. The other end of the supporting plate 4 away from the connecting plate 3 abuts against the outer wall of the edge guard 121. A water collection trough 41 is provided on the supporting plate 4, which is opened along the length of the supporting plate 4. When the opening fan 1 is in the open state, the water collection trough 41 is in a vertical state, forming a recess between the connecting plate 3 and the glass 11. A drainage groove 34 is provided at the junction of the connecting plate 3 and the supporting plate 4. One end of the drainage groove 34 extends to the recess formed by the connecting plate 3 and the glass 11, and the other end extends into the water collection trough 41. A baffle 42 is provided at the bottom of the water collection trough 41. The baffle 42 can only be opened by flipping it inward. This is achieved by hinged one end of the baffle 42 to the water collection trough 41 and overlapping the other end with the inner wall of the water collection trough 41, thus achieving the effect that the baffle 42 can only be opened by flipping it inward. A drain rod 43 is fixed on the crossbeam. The end of the drain rod 43 away from the crossbeam tilts upward. When the window is opened and then lowered, the tilted end of the drain rod 43 abuts against the baffle 42, and then the baffle 42 is flipped open into the water collection tank 41.
[0044] refer to Figure 1 The water collection tank 41 is equipped with a flap 6, a first arc plate 44, and a second arc plate 45. The flap 6 is rotatably connected to the inner wall of the water collection tank 41, and the rotation axis is located slightly above the center of the flap 6, so that the flap 6 can maintain a horizontal state when no external force is applied. Once the top of the flap 6 is subjected to external force, it will flip over, and after the force is released and it returns to a calm state, it will maintain a horizontal state again. The first arc plate 44 and the second arc plate 45 are located on both sides of the flap 6. The first arc plate 44 and the second arc plate 45 are both fixedly connected to the inner wall of the water collection tank 41, and the arc concave surface is set facing the flap 6. When the opening fan 1 is closed, the flap 6 still maintains a horizontal state. At this time, the top surface of the flap 6 is flush with the top surface of the first arc plate 44 and the second arc plate 45, and the outer circumferential wall of the flap 6 abuts against the arc side wall of the first arc plate 44 and the second arc plate 45.
[0045] refer to Figure 2 and Figure 3The sensing component 5 includes a pressure sensor 51, a buoyancy ball 52, and a rod 53. A slot 411 is provided at the bottom of the water collection tank 41, extending along the length of the water collection tank 41. One end of the rod 53 is inserted into the slot 411, and the other end is fixedly connected to the buoyancy ball 52. The diameter of the buoyancy ball 52 is larger than the inner diameter of the slot 411, and the buoyancy ball 52 is hollow. The pressure sensor 51 is fixed to the bottom of the slot 411. When there is no water in the water collection tank 41, the pressure sensor 51 withstands the pressure from the buoyancy ball 52 and the rod 53. The total weight of the rod 53 is such that as the water in the water collection tank 41 gradually increases, the pressure sensor 51 will set a fixed value. The water will generate buoyancy on the buoyancy ball 52, which will gradually reduce the pressure on the pressure sensor 51. When the pressure on the pressure sensor 51 reaches the initially set value, it will be triggered, thereby driving the electric push rod 2 to retract. At this time, the end of the rod 53 away from the buoyancy ball 52 is still inserted in the slot 411, so that after the water in the water collection tank 41 is drained, the rod 53 will fall back smoothly into the slot 411.
[0046] The implementation principle of the energy-saving and waterproof building opening structure in this application embodiment is as follows: When the opening fan 1 is in the open state, on rainy days, rainwater drips directly into the water collection tank 41. At the same time, the rainwater adhering to the outer wall of the glass 11 will accumulate to a certain weight and slide down due to gravity, accumulating in the depression formed by the connecting plate 3 and the glass 11. When it is full, it slides into the water collection tank 41 along the drainage channel 34. The existence of the depression provides time for the indoor air humidity to increase in the early stage of rainy days. The rainwater accumulated in the water collection tank 41 causes the sensing component 5 to send a signal, and the electric push rod 2 retracts, finally causing the opening fan 1 to return to the closed state. This achieves the effect that the opening fan 1 can be closed in time when rain comes, even when the operator is not present.
[0047] Example 2: Reference Figure 4 and Figure 5 The difference between this embodiment and embodiment one is that the sensing component 5 includes a water immersion sensor 54 and a sponge 55. A groove 61 is provided on the side wall of the flap 6 facing the bottom of the water collection tank 41. The center of the groove 61 is located at the center of the side wall of the flap 6. The water immersion sensor 54 is fixed at the center of the bottom of the groove 61. The sponge 55 is fixedly connected to the bottom of the groove 61 and surrounds the water immersion sensor 54. There is a distance between the sponge 55 and the water immersion sensor 54. The opening of the sponge 55, the water immersion sensor 54 and the groove 61 does not affect the flap 6 from returning to a horizontal state when no external force is applied. The amount of sponge 55 used is not enough to disrupt the balance of the flap 6. Even if the sponge 55 absorbs water, it is not enough to disrupt the horizontal state of the flap 6. Specifically, the weight of the sponge 55 after absorbing water can cause a deflection tendency of the flap 6 that is less than the frictional resistance between the edge of the flap 6 and the inner wall of the water collection tank 41.
[0048] Example 3: Reference Figure 6The difference between this embodiment and embodiments one and two is that a glass support 8 is also provided between the edge protector 121 and the inner liner 122. The glass support 8 is located above the heat insulation strip 7. One end of the glass support 8 is fixedly connected to the inner liner 122, and the other end is fixedly connected to the edge protector 121. The glass 11 is located above the glass support 8.
[0049] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An energy-saving and waterproof building opening structure, comprising an opening fan (1) and an electric push rod (2), both the opening fan (1) and the electric push rod (2) being connected to the curtain wall keel, one end of the electric push rod (2) being hinged to the curtain wall keel and the other end being hinged to the opening fan (1), the opening fan (1) comprising glass (11), a frame (12) and an opening frame (13), the frame (12) being fixedly connected to the edge of the glass (11), and the opening frame (13) being fixed on the curtain wall beam, wherein when the opening fan (1) is closed, the frame (12) and the opening frame (13) abut against each other, characterized in that: The frame (12) includes a guard edge (121) and an inner lining (122). The guard edge (121) and the inner lining (122) are fixedly connected. A connecting plate (3) and a bearing plate (4) are detachably connected to the guard edge (121). One end of the connecting plate (3) is detachably connected to the guard edge (121), and the other end is fixedly connected to the bearing plate (4). A water collection groove (41) is provided on the bearing plate (4). When the fan (1) is open, the water collection groove (41) is vertical and the groove opening is open. Facing upwards, a sensing component (5) is installed inside the water collection tank (41); the sensing component (5) is used to send a retraction signal to the electric push rod (2) after rainwater accumulates in the water collection tank (41); a baffle (42) is installed at the bottom of the water collection tank (41), the baffle (42) can only rotate into the water collection tank (41), a drain rod (43) is fixed on the curtain wall beam, and when the opening fan (1) is not open, the drain rod (43) pushes up the baffle (42) at the end away from the curtain wall beam.
2. The structure for opening an energy-saving and waterproof building according to claim 1, characterized in that: A flap (6) is rotatably mounted on the bearing plate (4). The flap (6) is located inside the water collection tank (41). The rotation axis between the flap (6) and the bearing plate (4) is located above the center of the flap (6). When the water collection tank (41) is vertical, the edge of the flap (6) abuts against the inner wall of the water collection tank (41).
3. The structure for opening an energy-saving and waterproof building according to claim 2, characterized in that: The bearing plate (4) is provided with a first arc plate (44) and a second arc plate (45). The first arc plate (44) and the second arc plate (45) are located in the water collection tank (41) and on both sides of the flip plate (6). When the opening fan (1) is not open, the first arc plate (44), the second arc plate (45) and the flip plate (6) separate the upper and lower spaces of the water collection tank (41).
4. The structure for opening an energy-saving and waterproof building according to claim 1, characterized in that: The edge guard (121) is fixed with a protrusion (33) on the side near the glass (11), and a positioning rod (31) is fixed on the side wall of the connecting plate (3) facing the glass (11). A positioning block (32) is fixed on the end of the positioning rod (31) near the glass (11). Along the direction away from the glass (11), the positioning block (32) and the protrusion (33) limit each other. At this time, the end of the connecting plate (3) away from the bearing plate (4) abuts against the glass (11), and the end of the bearing plate (4) away from the connecting plate (3) abuts against the outer wall of the edge guard (121). The edge guard (121), the connecting plate (3) and the bearing plate (4) are triangular in shape. The positioning rod (31) has elastic deformation capability.
5. The structure for opening an energy-saving and waterproof building according to claim 1, characterized in that: The sensing component (5) includes a pressure sensor (51), a buoyancy ball (52) and a plug (53). The bottom of the water collection tank (41) is provided with a slot (411). The pressure sensor (51) is fixed to the bottom of the slot (411). One end of the plug (53) is inserted into the slot (411) and abuts against the pressure sensor (51). The other end is fixedly connected to the buoyancy ball (52). The buoyancy ball (52) is located outside the slot (411).
6. The structure for opening an energy-saving and waterproof building according to claim 5, characterized in that: The buoyancy ball (52) is hollow inside.
7. The structure for opening an energy-saving and waterproof building according to claim 2, characterized in that: The sensing component (5) includes a water immersion sensor (54) and a sponge (55). Both the sponge (55) and the water immersion sensor (54) are fixed on the side wall of the flap (6) facing the bottom of the water collection tank (41). The sponge (55) surrounds the water immersion sensor (54) and there is a distance between the sponge (55) and the water immersion sensor (54). The sensing component (5) is fixed at the center of the flap (6). The flap (6) can remain horizontal when it is stationary.
8. The structure for opening an energy-saving and waterproof building according to claim 7, characterized in that: The flap (6) has a groove (61) on the side wall facing the bottom of the water collection tank (41). The groove (61) is located at the center of the flap (6). The sensing component (5) is located in the groove (61). A ring is fixed on the flap (6) and the ring is wrapped around the outside of the groove (61).
9. The structure for opening an energy-saving and waterproof building according to claim 1, characterized in that: There is a gap between the edge protector (121) and the inner liner (122). A glass support (8) and a heat insulation strip (7) are fixed between the edge protector (121) and the inner liner (122). The glass support (8) is used to support the glass (11). The heat insulation strip (7) is located below the glass support (8). One end of the heat insulation strip (7) is fixedly connected to the edge protector (121), and the other end is fixedly connected to the inner liner (122).