Energy-saving heat insulation structure of building outer wall

Abstract

The present application relates to the technical fields of building energy-saving thermal insulation materials, and discloses an energy-saving thermal insulation structure of a building outer wall, comprising a curtain wall, thermal insulation cotton, an extension plate, a clamping plate, a synchronizer, a back-shaped plate and a guide shell. The linkage cooperation structure of the air bag, the U-shaped plate, the clamping plate, the synchronizer, the back-shaped plate and the extension plate is provided, when the indoor or outdoor ambient temperature rises, the air bag on the corresponding side is heated and expanded, drives the clamping plate to move and drives the clamping plate on the other side to move back synchronously through the synchronizer, and the slope cooperation of the back-shaped plate and the extension plate makes the thermal insulation cotton fold and compress, so that the thickness and density of the thermal insulation cotton are increased, the thermal resistance value of the thermal insulation cotton on the side is actively improved, the adaptive dynamic adjustment purpose of the heat insulation coefficient with the ambient temperature is achieved, the outdoor high temperature is effectively avoided from being transmitted into the indoor or the indoor heat loss to the outdoor, and the operation energy consumption of the indoor constant temperature equipment is reduced.

Description

Technical Field

[0001] This invention relates to the field of building energy-saving thermal insulation materials technology, specifically to an energy-saving thermal insulation structure for building exterior walls. Background Technology

[0002] As an exterior wall cladding structure of a building, a curtain wall does not bear the load of the main structure itself. Instead, it hangs outside the building like a curtain, hence the name "curtain wall". Due to its lightweight and aesthetically pleasing decorative effect, curtain walls are widely used in modern large public buildings and high-rise and super high-rise buildings.

[0003] To reduce building energy consumption and maintain indoor thermal comfort, existing curtain wall structures typically incorporate internal insulation. However, the vast majority of curtain walls currently on the market employ passive insulation designs. This means that the insulation coefficient of this structure is fixed after installation, and its thermal performance cannot be actively and adaptively adjusted according to dynamic changes in indoor and outdoor temperatures.

[0004] In practical applications, this passive design with a fixed insulation coefficient has significant limitations. Specifically, during extreme summer heat when outdoor temperatures are significantly higher than indoor temperatures, the insulation layer with a fixed coefficient cannot be further improved, causing outdoor heat to continue to transfer uncontrollably into the room. Conversely, in cold winter weather, when indoor heating temperatures are high, a large amount of indoor heat will also be lost to the outside through the building envelope with a fixed insulation coefficient. This heat transfer process not only reduces indoor comfort but also directly leads to a significant increase in the energy consumption of air conditioning, heating, and other equipment required to maintain a constant indoor temperature.

[0005] Furthermore, existing passive insulation structures have a fixed heat transfer path distance (i.e., insulation layer thickness or heat transfer path length) in their physical construction. This fixed geometry cannot actively extend the heat transfer path to increase thermal resistance under extreme temperature difference conditions. When the indoor and outdoor temperature difference is large, heat can still be rapidly transferred bidirectionally along a fixed short path, further aggravating energy loss. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing an energy-saving thermal insulation structure for building exterior walls, so as to achieve adaptive dynamic adjustment of the thermal insulation coefficient with ambient temperature.

[0007] The objective of this invention can be achieved through the following technical solutions: An energy-saving thermal insulation structure for building exterior walls includes a curtain wall, and the thermal insulation structure further includes: Thermal insulation cotton, two sets of thermal insulation cotton are installed inside the curtain wall; The curtain wall has two sets of movable cavities, and four sets of extension plates are installed in each set of movable cavities. The four sets of extension plates slide along the four sides of the movable cavity, and the heat insulation cotton quilt is fixed between the four sets of extension plates. The insulation cotton is provided with clamps on both sides, and the clamps slide along the inner cavity of the curtain wall; Synchronizing components: The two sets of clamping plates are connected by four sets of synchronizing components, which are located at the four corners of the clamping plates respectively. The four sets of synchronizing components drive the two sets of clamping plates to move synchronously. The four sets of synchronization components are equipped with a return plate. The return plate is located on the inner side of the clamping plate facing the curtain wall. The opposite side of the extension plate and the return plate are both inclined. The inclined surface of the extension plate is slidably connected to the inclined surface of the return plate. The guide shell has four sets of airbags installed in the cavity between the outer surface of the curtain wall and the thermal insulation cotton. The guide shell has an airbag installed inside. The surface of the clamping plate facing outward of the curtain wall has four sets of U-shaped plates. The middle section of the U-shaped plate is located at the opening end of the guide shell. After the airbag expands, it pushes the U-shaped plate to move.

[0008] As a further embodiment of the present invention: the synchronization component includes a guide cylinder, a first connector and a second connector. The guide cylinder passes through the heat insulation cotton and is fixedly connected to the heat insulation cotton. The first connector and the second connector are respectively movably sleeved on both ends of the guide cylinder. The first connector is connected to the clamping plate facing outward of the curtain wall, and the second connector is connected to the clamping plate facing inward of the curtain wall.

[0009] As a further embodiment of the present invention: the first connecting member includes a connecting column, a piston, and a connecting plate. The first connecting plate is fixedly connected to the clamping plate and the U-shaped plate facing outwards from the curtain wall, respectively. The first connecting plate is provided with a connecting column, which passes through one end of the guide cylinder. The other end of the connecting column is provided with a piston, the periphery of which is fitted against the inner wall of the guide cylinder. The second connecting member includes a connecting cylinder, a piston, and a connecting plate. The second connecting plate is fixedly connected to the clamping plate facing inwards from the curtain wall. The second connecting plate is provided with a connecting cylinder, which passes through the other end of the guide cylinder. A piston is provided at one end. A partition is provided inside the guide cylinder. Piston 1 and piston 2 are located on opposite sides of the partition. A guide post is provided on one side of the partition. The guide post passes through piston 2 and extends into the connecting cylinder. A flow channel is provided inside the guide cylinder. The cavity formed by piston 1 away from the partition and the end of the guide cylinder, and the cavity formed by piston 2 and the partition are connected through the flow channel. Two sets of air intake valves and air exhaust valves are provided on the guide cylinder. One set of air intake valves and air exhaust valves is located between piston 1 and the partition, and the other set of air intake valves and air exhaust valves is located between piston 2 and the end of the guide cylinder.

[0010] As a further aspect of the present invention: the diameter of the connecting column is equal to the diameter of the guide column, and the cross-sectional area of ​​the cavity formed by the end of piston one away from the partition and the end of the guide cylinder is equal to the cross-sectional area of ​​the cavity formed by piston two and the partition.

[0011] As a further aspect of the present invention: the inner cavity of the curtain wall is provided with two sets of heat-conducting plates, and the four sides of one set of heat-conducting plates are in contact with the surfaces of four sets of guide shells respectively.

[0012] As a further aspect of the present invention: the curtain wall is equipped with four sets of reversing mechanisms, which are connected to four sets of guide shells symmetrically arranged on both sides. A temperature sensor is installed in the cavity between the outer surface of the curtain wall and the thermal insulation cotton. The temperature sensor is connected to the photovoltaic power supply outside the curtain wall and the processor inside the curtain wall, respectively.

[0013] As a further embodiment of the present invention: the reversing mechanism includes a driving component, a rocker arm, and a push-pull plate. Four sets of mounting slots are provided inside the curtain wall. The driving component is installed in the mounting slot. The driving component is connected to the photovoltaic power supply outside the curtain wall and the processor inside the curtain wall. The output end of the driving component is provided with a rocker arm. An embedding slot is provided in the area of ​​the inner cavity of the curtain wall corresponding to the guide shell. The push-pull plate extends movably through the mounting slot into the embedding slot and is fixedly connected to the guide shell. A through hole is provided in the part of the push-pull plate located in the mounting slot. The two ends of the rocker arm pass through the through holes on the two sets of push-pull plates respectively.

[0014] As a further aspect of the present invention: two sets of sealing plates are installed in the inner cavity of the curtain wall, the two sets of sealing plates are located between two sets of U-shaped plates, and a vacuum layer is formed between the two sets of sealing plates. The U-shaped plates are fixedly connected to the sealing plates on the side near the U-shaped plates by support plates. Four sets of symmetrical vertical grooves are opened in the curtain wall, the vertical grooves are connected to the mounting grooves, and the four sets of vertical grooves located on the same plane are respectively located at the four sides of the sealing plates. The thickness of the vertical grooves is less than the thickness of the sealing plates. Piston plates are slidably installed in the vertical grooves, the outer periphery of the piston plates is in contact with the inner wall of the vertical grooves, and the part of the piston plates located in the mounting grooves has through holes. The two ends of the rocker rod pass through the through holes on the two sets of piston plates respectively.

[0015] The beneficial effects of this invention are: (1) The present invention sets up a linkage structure of airbag, U-shaped plate, clamping plate, synchronizing component, U-shaped plate and extension plate. When the indoor or outdoor ambient temperature rises, the airbag on the corresponding side expands due to heat, drives the clamping plate to move and drives the clamping plate on the other side to move synchronously in opposite directions through the synchronizing component. At the same time, the inclined surfaces of the U-shaped plate and the extension plate cooperate to compress the heat insulation cotton, thereby increasing the thickness and density of the heat insulation cotton, thereby actively improving the thermal resistance value of the heat insulation cotton on that side, achieving the purpose of adaptive dynamic adjustment of the heat insulation coefficient with the ambient temperature, effectively preventing outdoor high temperature from entering the room or indoor heat from being lost to the outside, and reducing the operating energy consumption of the equipment that maintains the indoor constant temperature.

[0016] (2) By setting up the guide cylinder, piston one, piston two, connecting column, guide column and flow channel in the synchronization component, the present invention utilizes the equal cross-sectional area of ​​the two sets of cavities and the principle of gas pressure transmission to ensure that the two side plates move synchronously and at equal distances, so that the heat insulation cotton is evenly distributed during the shrinkage or stretching process, ensuring the stability and consistency of the heat insulation effect; at the same time, the change in the thickness of the heat insulation cotton directly extends the heat transfer path distance, further increases the thermal resistance, and strengthens the heat insulation performance under extreme temperature difference conditions.

[0017] (3) By setting up a reversing mechanism and a temperature sensor, the present invention can compare the temperature difference between indoor and outdoor in real time and control the drive component to drive the rocker arm to deflect, so that the guide shell on the side with higher temperature is pushed out and the guide shell on the other side is retracted, thereby adjusting the heat insulation performance of the heat insulation cotton on the high temperature side only, avoiding the performance over-excess and material fatigue caused by adjusting both sides at the same time, extending the service life of the device, and further improving the adaptability to different working conditions and energy saving effect.

[0018] (4) By setting two sets of sealing plates and a vacuum layer between them, and combining the rocker to drive the piston plate to move in the vertical groove, the thickness of the insulation cotton increases while the sealing plate on the corresponding side is displaced to increase the thickness of the vacuum layer, which further extends the heat transfer path. The overall heat insulation capacity is greatly improved by utilizing the heat insulation properties of the vacuum layer, and the heat transfer is reduced in a coordinated manner from multiple dimensions such as solid conduction, air convection and radiation heat transfer. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the cross-sectional structure of the curtain wall in this invention; Figure 2 This is a schematic diagram of the clamping plate structure in this invention; Figure 3 This is a schematic diagram of the guide shell structure in this invention; Figure 4 This is a schematic diagram of the structure of the epitaxial plate and the synchronization component in this invention; Figure 5 This is a schematic diagram of the epitaxial plate and the synchronizing element from another perspective in this invention; Figure 6 This is a schematic diagram of the spiral-shaped plate structure in this invention; Figure 7 This is a schematic diagram of the connection structure between the spiral plate and the extension plate in this invention; Figure 8 This is a schematic diagram of the synchronization component structure in this invention; Figure 9 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0021] In the picture: 1. Thermal insulation cotton; 2. Curtain wall; 21. Movable cavity; 22. Embedded groove; 23. Mounting groove; 24. Vertical groove; 3. Outer extension plate; 4. Clamping plate; 41. U-shaped plate; 5. Synchronizing component; 51. Guide cylinder; 511. Partition plate; 512. Guide column; 513. Flow channel; 514. Inlet valve; 515. Exhaust valve; 52. Connector 1; 521. Connecting column; 522. Piston 1; 523. Connecting plate 1; 53. Connector 2; 531. Connecting cylinder; 532. Piston 2; 533. Connecting plate 2; 6. U-shaped plate; 61. Support plate; 7. Guide shell; 71. Airbag; 72. Heat-conducting plate; 8. Sealing plate; 9. Reversing mechanism; 91. Driving component; 92. Rocker arm; 93. Push-pull plate; 94. Piston plate; 10. Temperature sensor. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1-8 As shown, an energy-saving thermal insulation structure for a building exterior wall includes a curtain wall 2, and the thermal insulation structure further includes: Insulation cotton 1, two sets of insulation cotton 1 are installed inside the curtain wall 2; The outer extension plate 3 and the curtain wall 2 have two sets of movable cavities 21. Each set of movable cavities 21 has four sets of outer extension plates 3 installed in it. The four sets of outer extension plates 3 slide along the four sides of the movable cavity 21 respectively. The heat insulation cotton 1 is fixed between the four sets of outer extension plates 3. The insulation cotton 1 is provided with clamping plate 4 on both sides, and the clamping plate 4 slides along the inner cavity of the curtain wall 2. Synchronizing element 5: The two sets of clamping plates 4 are connected by four sets of synchronizing elements 5. The four sets of synchronizing elements 5 are located at the four corners of the clamping plates 4 respectively. The four sets of synchronizing elements 5 drive the two sets of clamping plates 4 to move synchronously. The return plate 6 is installed on the four sets of synchronous parts 5. The return plate 6 is located on the inner side of the clamping plate 4 in the direction of the curtain wall 2. The outer extension plate 3 and the return plate 6 are both inclined on opposite sides. The inclined surface of the outer extension plate 3 is slidably connected to the inclined surface of the return plate 6. Four sets of guide shells 7 are installed in the cavity between the outer surface of the curtain wall 2 and the thermal insulation cotton 1. An airbag 71 is installed inside the guide shell 7. Four sets of U-shaped plates 41 are provided on the surface of the clamping plate 4 facing outward from the curtain wall 2. The middle section of the U-shaped plate 41 is located at the opening end of the guide shell 7. After the airbag 71 expands, it pushes the U-shaped plate 41 to move.

[0024] In practical application, when the outdoor temperature is high, the four sets of airbags 71 near the outside will inflate, thereby pushing the U-shaped plate 41 to move. The U-shaped plate 41 then pulls the connected clamping plate 4 to move outwards. Simultaneously, the clamping plate 4 on the other side moves inwards via the synchronizing element 5. At the same time, the U-shaped plate 6 near the outside moves outwards via the synchronizing element 5. Through the cooperation of the inclined surface of the U-shaped plate 6 with the inclined surfaces of the four sets of outer extension plates 3, the four sets of outer extension plates 3 move closer together. At this time, the four sets of outer extension plates 3 cause the insulation cotton 1 to contract and shrink. The two sets of clamping plates 4 move in opposite directions to provide space for the insulation cotton 1 to contract, while ensuring that the insulation cotton 1 is evenly distributed during contraction or stretching. After contraction, the insulation cotton 1 becomes thicker and denser. Because the insulation cotton 1 (e.g., rock wool, glass wool, etc.) The interior contains a large number of tiny, still air particles. Since air is a poor conductor of heat, the fixed fibers of the insulation cotton 1 hinder heat conduction through the solid, and the internal still air layer greatly reduces heat convection, thus achieving a heat insulation effect. Therefore, when the thickness of the insulation cotton 1 increases, its thermal resistance value increases, thereby improving its heat insulation performance. At the same time, the thicker insulation cotton 1 increases the heat transfer path distance, further increasing the thermal resistance value and further improving the heat insulation performance. In addition, the density of the insulation cotton 1 increases, which compresses the internal still air layer. The solid fibers divide the air layer into countless tiny, non-convective, sealed air chambers. At this time, the fixed conduction has not yet increased significantly, and heat convection is gradually suppressed, thereby improving the heat insulation performance. When the indoor temperature is high, the four sets of airbags 71 near the interior will expand, thereby increasing the thickness and density of the insulation cotton 1 near the interior, thus improving the insulation performance of the insulation cotton 1 near the interior. In summary, when indoor and outdoor temperatures are high, the thickness and density of the insulation cotton 1 on the corresponding side increase, thereby improving the thermal insulation performance of the insulation cotton 1 on the corresponding side. This allows the thermal insulation coefficient of the insulation cotton 1 to be dynamically adjusted according to the ambient temperature, thus preventing heat transfer from the outside to the inside due to excessively high outdoor temperatures and preventing heat loss from the inside to the outside due to excessively high indoor temperatures, thereby improving indoor comfort and avoiding increased energy consumption of equipment used to maintain indoor temperature. At the same time, the thicker insulation cotton 1 increases the heat transfer path distance, thereby further increasing the thermal resistance value, further improving thermal insulation performance, and further preventing increased energy consumption. It should be noted that through the sliding fit between the U-shaped plate 6 and the four sets of extended plates 3, when the four sets of extended plates 3 move close together to their extreme positions, the insulation cotton 1 reaches its optimal insulation performance after being compressed. This is because when the density of the insulation cotton 1 is too low, the gaps between the solid fibers are too large, and heat convection is obvious. When the density is moderate, the solid fibers divide the air into tiny sealed air chambers, the solid conduction does not increase significantly, heat convection is completely suppressed, and the insulation effect is optimal. When the density is too high, the number of solid contact points increases, the solid conduction rises sharply, the air volume decreases, and the insulation performance actually decreases.

[0025] Furthermore, the synchronization component 5 includes a guide cylinder 51, a first connector 52, and a second connector 53. The guide cylinder 51 passes through the insulation cotton 1 and is fixedly connected to the insulation cotton 1. The first connector 52 and the second connector 53 are respectively movably sleeved on both ends of the guide cylinder 51. The first connector 52 is connected to the clamping plate 4 facing outward of the curtain wall 2, and the second connector 53 is connected to the clamping plate 4 facing inward of the curtain wall 2.

[0026] Connector 1 52 includes a connecting post 521, a piston 1 522, and a connecting plate 1 523. The connecting plate 1 523 is fixedly connected to the clamping plate 4 and the U-shaped plate 6 facing outwards from the curtain wall 2, respectively. The connecting post 521 is provided on the connecting plate 1 523, and the connecting post 521 passes through one end of the guide cylinder 51. The piston 1 522 is provided at the other end of the connecting post 521, and the periphery of the piston 1 522 is in contact with the inner wall of the guide cylinder 51. Connector 2 53 includes a connecting cylinder 531, a piston 2 532, and a connecting plate 2 533. The connecting plate 2 533 is fixedly connected to the clamping plate 4 facing inwards from the curtain wall 2. The connecting plate 2 533 is provided with a connecting cylinder 531, and the connecting cylinder 531 passes through the other end of the guide cylinder 51. The piston 2 532 is provided at the other end of the connecting cylinder 531. A partition 511 is provided inside the guide cylinder 531. Piston 1 522 and piston 2 532 are located on both sides of the partition 511. A guide post 512 is provided on one side of the partition 511. The guide post 512 passes through piston 2 532 and extends into the guide cylinder 531. A flow channel 513 is provided inside the guide cylinder 51. The cavity formed by the end of piston 1 522 away from the partition 511 and the end of the guide cylinder 51, as well as the cavity formed by piston 2 532 and the partition 511, are connected through the flow channel 513. Two sets of intake valves 514 and exhaust valves 515 are provided on the guide cylinder 51. One set of intake valves 514 and exhaust valves 515 is located between piston 1 522 and the partition 511, and the other set of intake valves 514 and exhaust valves 515 is located between piston 2 532 and the end of the guide cylinder 51.

[0027] The diameter of the connecting post 521 is equal to the diameter of the guide post 512. The cross-sectional area of ​​the cavity formed by the end of piston 1 522 away from the partition 511 and the end of the guide cylinder 51 is equal to the cross-sectional area of ​​the cavity formed by piston 2 532 and the partition 511.

[0028] In one embodiment, the cavity formed by the end of piston 522 away from partition 511 and the end of guide cylinder 51 is called cavity one, and the cavity formed by piston 532 and partition 511 is called cavity two.

[0029] In practical application, when the U-shaped plate 41 moves the clamping plate 4 away from the insulation cotton 1, the connecting plate 523 will drive the piston 522 to move towards the end of the guide cylinder 51 via the connecting column 521. At this time, the gas in the cavity 1 is compressed and enters the cavity 2 through the flow channel 513, thereby increasing the pressure in the cavity 2. Then the piston 532 will drive the connecting cylinder 531 and the connecting plate 533 to move the clamping plate 4 on the other side away from the insulation cotton 1. Since the cross-sectional areas of the cavity 1 and the cavity 2 are equal, the distances that the two sets of clamping plates 4 move are equal, so that the insulation cotton 1 is evenly distributed when it contracts, ensuring a uniform insulation effect. It should be noted that the U-shaped plate 41 is equipped with magnetic components on the side facing the airbag 71 and on the airbag 71. The U-shaped plate 41 is fixed to the airbag 71. When the ambient temperature decreases and the airbag 71 contracts, the U-shaped plate 41 will push the clamping plate 4 towards the heat insulation cotton 1. At the same time, the U-shaped plate 6 will move the four sets of outer extension plates 3 away from each other, causing the heat insulation cotton 1 to stretch, thereby reducing the heat insulation performance of the heat insulation cotton 1 and realizing the adaptive dynamic adjustment of the heat insulation coefficient of the heat insulation cotton 1 with the ambient temperature.

[0030] Furthermore, the inner cavity of the curtain wall 2 is provided with two sets of heat-conducting plates 72, and the four sides of one set of heat-conducting plates 72 are in contact with the surfaces of four sets of guide shells 7 respectively.

[0031] In practical applications, when the indoor and outdoor temperatures are high, the temperature is transferred to the heat-conducting plate 72, then to the four sets of guide shells 7, and finally to the four sets of airbags 71. This ensures that the airbags 71 expand and adjust the heat insulation performance of the insulation cotton 1 when the ambient temperature is high.

[0032] like Figures 1-9 As shown, the curtain wall 2 is equipped with four sets of reversing mechanisms 9, which are connected to four sets of guide shells 7 symmetrically arranged on both sides. A temperature sensor 10 is installed in the cavity between the outer surface of the curtain wall 2 and the heat insulation cotton 1. The temperature sensor 10 is connected to the photovoltaic power supply outside the curtain wall 2 and the processor inside the curtain wall 2, respectively.

[0033] The reversing mechanism 9 includes a drive component 91, a rocker arm 92, and a push-pull plate 93. Four sets of mounting slots 23 are provided inside the curtain wall 2. The drive component 91 is installed in the mounting slot 23. The drive component 91 is connected to the photovoltaic power supply outside the curtain wall 2 and the processor inside the curtain wall 2, respectively. The output end of the drive component 91 is provided with a rocker arm 92. An embedding slot 22 is provided in the area of ​​the inner cavity of the curtain wall 2 corresponding to the guide shell 7. The push-pull plate 93 extends movably through the mounting slot 23 into the embedding slot 22 and is fixedly connected to the guide shell 7. The part of the push-pull plate 93 located in the mounting slot 23 has a through hole. The two ends of the rocker arm 92 pass through the through holes on the two sets of push-pull plates 93, respectively.

[0034] In practical application, this embodiment uses two sets of temperature sensors 10, one near the indoor unit and one near the outdoor unit, to detect the indoor and outdoor temperatures respectively. When the outdoor temperature is higher than the indoor temperature, the processor controls the drive unit 91 to rotate, causing the rocker arm 92 to rotate. The rocker arm 92 then moves the push-pull plate 93 near the outdoor unit toward the guide shell 7, pushing the guide shell 7 out of the embedding groove 22. Meanwhile, the push-pull plate 93 on the other side pulls the guide shell 7 into the embedding groove 22, allowing the insulation performance of the insulation cotton 1 near the outdoor unit to be dynamically adjusted, thus stabilizing the insulation performance of the insulation cotton 1 near the indoor unit. When the indoor temperature is higher than the outdoor temperature, the processor controls the drive unit 91 to reverse, at which point the rocker arm 92 moves the push-pull plate 93 near the indoor unit toward the guide shell 7. The inner push-pull plate 93 moves towards the guide shell 7, pushing the guide shell 7 out of the embedded groove 22, while the other push-pull plate 93 pulls the guide shell 7 into the embedded groove 22, so that the insulation cotton 1 near the indoors can dynamically adjust its insulation performance, and the insulation performance of the insulation cotton 1 near the outdoors can be stabilized. In this way, the insulation performance of the insulation cotton 1 on the indoor side can be dynamically adjusted according to which side has a higher temperature, thereby avoiding heat transfer to the indoors due to excessive outdoor temperature and heat loss to the outdoor due to excessive indoor temperature, thus improving indoor comfort and avoiding increased energy consumption of equipment that maintains indoor temperature; at the same time, it avoids excessive insulation performance of the insulation cotton 1, which would lead to a decrease in the service life of the insulation cotton 1.

[0035] Furthermore, two sets of sealing plates 8 are installed in the inner cavity of the curtain wall 2. The two sets of sealing plates 8 are located between two sets of U-shaped plates 6, forming a vacuum layer between the two sets of sealing plates 8. The U-shaped plates 6 are fixedly connected to the sealing plates 8 on the side closest to the U-shaped plates 6 through the support plate 61. Four sets of symmetrical vertical grooves 24 are opened in the curtain wall 2. The vertical grooves 24 are connected to the mounting grooves 23. The four sets of vertical grooves 24 located on the same plane are respectively located at the four sides of the sealing plates 8. The thickness of the vertical grooves 24 is less than the thickness of the sealing plates 8. A piston plate 94 is slidably installed in the vertical grooves 24. The outer periphery of the piston plate 94 is in contact with the inner wall of the vertical groove 24. The part of the piston plate 94 located in the mounting groove 23 has through holes. The two ends of the rocker arm 92 pass through the through holes on the two sets of piston plates 94 respectively.

[0036] In practical applications, when the indoor and outdoor temperatures are high, the thermal insulation performance of the insulation cotton 1 on the corresponding side will be improved, and the sealing plate 8 on the corresponding side will also move towards this side, thereby increasing the thickness of the vacuum layer formed between the two sets of sealing plates 8. This further increases the path distance for heat transfer, further increases the thermal resistance value, further improves the thermal insulation performance, and further avoids increased energy consumption. It should be noted that, taking a high outdoor temperature as an example, the rocker arm 92 will push the piston plate 94 on this side towards the sealing plate 8. At this time, the air in the vertical groove 24 will compress the edge of the sealing plate 8, allowing the sealing plate 8 on this side to move. Meanwhile, the piston plate 94 on the other side will move away from the sealing plate 8 on this side, making the cavity between the edge of the sealing plate 8 and the piston plate 94 a negative pressure state. At this time, the sealing plate 8 on this side will be sucked in and fixed by the negative pressure, thus ensuring that only one side of the sealing plate 8 moves, ensuring that the vacuum layer thickness increases.

[0037] Working principle: When the outdoor temperature is high, the four sets of airbags 71 near the outside will inflate, thereby pushing the U-shaped plate 41 to move. The U-shaped plate 41 will then pull the connected clamping plate 4 to move outwards. Through the synchronization element 5, the clamping plate 4 on the other side will move inwards. At the same time, through the synchronization element 5, the U-shaped plate 6 near the outside will move outwards. Through the cooperation of the upper inclined surface of the U-shaped plate 6 and the upper inclined surface of the four sets of outer extension plates 3, the four sets of outer extension plates 3 will come together. At this time, the four sets of outer extension plates 3 will cause the heat insulation cotton 1 to come together and contract. The two sets of clamping plates 4 move in opposite directions to provide space for the heat insulation cotton 1 to contract. At the same time, the heat insulation cotton 1 will be evenly distributed when contracting or stretching. After contraction, the thickness and density of the heat insulation cotton 1 will increase. Since there are a large number of tiny still air particles inside the heat insulation cotton 1 (such as rock wool, glass wool, etc.), and air is a poor conductor of heat, the fixed fibers of the heat insulation cotton 1 will hinder the heat transfer. Heat is conducted through solids, and the internal still air layer greatly reduces heat convection, thus achieving a heat insulation effect. Therefore, when the thickness of the insulation cotton 1 increases, the thermal resistance of the insulation cotton 1 increases, thereby improving the heat insulation performance of the insulation cotton 1. At the same time, the increased thickness of the insulation cotton 1 increases the heat transfer path distance, thereby further increasing the thermal resistance and further improving the heat insulation performance. In addition, the increased density of the insulation cotton 1 compresses the internal still air layer. The solid fibers divide the air layer into countless tiny, non-convective, sealed air chambers. At this time, the fixed conduction has not yet increased significantly, and heat convection is gradually suppressed, thereby improving the heat insulation performance. When the indoor temperature is high, the four sets of airbags 71 near the interior will expand, thereby increasing the thickness and density of the insulation cotton 1 near the interior, further improving the heat insulation performance of the insulation cotton 1 near the interior.

Claims

1. An energy-saving thermal insulation structure for building exterior walls, comprising a curtain wall (2), characterized in that, The thermal insulation structure also includes: Insulation cotton (1), two sets of insulation cotton (1) are installed inside the curtain wall (2); The curtain wall (2) has two sets of movable cavities (21) inside the outer extension plate (3). Each set of movable cavities (21) is equipped with four sets of outer extension plates (3). The four sets of outer extension plates (3) slide along the four sides of the movable cavity (21). The heat insulation cotton (1) is fixed between the four sets of outer extension plates (3). The heat insulation cotton (1) is provided with a clamp (4) on both sides, and the clamp (4) slides along the inner cavity of the curtain wall (2); Synchronizing element (5): The two sets of clamping plates (4) are connected by four sets of synchronizing elements (5). The four sets of synchronizing elements (5) are located at the four corners of the clamping plates (4) respectively. The four sets of synchronizing elements (5) drive the two sets of clamping plates (4) to move synchronously. The return plate (6) is installed on the four sets of synchronization components (5). The return plate (6) is located on the inner side of the clamp (4) facing the curtain wall (2). The outer extension plate (3) and the return plate (6) are both inclined on opposite sides. The inclined surface of the outer extension plate (3) is slidably connected to the inclined surface of the return plate (6). The guide shell (7) is installed in the cavity between the outer surface of the curtain wall (2) and the heat insulation cotton (1). An airbag (71) is installed in the guide shell (7). Four sets of U-shaped plates (41) are provided on the surface of the clamp (4) facing outward of the curtain wall (2). The middle section of the U-shaped plate (41) is located at the opening end of the guide shell (7). After the airbag (71) expands, it pushes the U-shaped plate (41) to move.

2. The energy-saving thermal insulation structure for building exterior walls according to claim 1, characterized in that, The synchronization component (5) includes a guide cylinder (51), a first connector (52) and a second connector (53). The guide cylinder (51) passes through the insulation cotton (1) and is fixedly connected to the insulation cotton (1). The first connector (52) and the second connector (53) are respectively movably sleeved on both ends of the guide cylinder (51). The first connector (52) is connected to the clamping plate (4) facing outward from the curtain wall (2), and the second connector (53) is connected to the clamping plate (4) facing inward from the curtain wall (2).

3. The energy-saving thermal insulation structure for building exterior walls according to claim 2, characterized in that, The first connector (52) includes a connecting post (521), a piston (522), and a connecting plate (523). The connecting plate (523) is fixedly connected to the clamping plate (4) and the U-shaped plate (6) facing outwards from the curtain wall (2), respectively. The connecting post (521) is provided on the connecting plate (523). The connecting post (521) passes through one end of the guide cylinder (51), and the piston (522) is provided at the other end of the connecting post (521). The piston (522) is located outside the... The connecting component 2 (53) is fitted to the inner wall of the guide cylinder (51). The connecting component 2 (53) includes a connecting cylinder (531), a piston 2 (532), and a connecting plate 2 (533). The connecting plate 2 (533) is fixedly connected to the clamping plate (4) facing inward towards the curtain wall (2). The connecting plate 2 (533) is provided with a connecting cylinder (531). The connecting cylinder (531) passes through the other end of the guide cylinder (51). The other end of the connecting cylinder (531) is provided with a piston 2 (532). The guide cylinder 2 (533) is fitted to the inner wall of the guide cylinder (51). A partition (511) is provided inside the cylinder (51). Piston 1 (522) and piston 2 (532) are located on both sides of the partition (511). A guide post (512) is provided on one side of the partition (511). The guide post (512) passes through piston 2 (532) and extends into the connecting cylinder (531). A flow channel (513) is opened inside the guide cylinder (51). The end of piston 1 (522) away from the partition (511) forms a connection with the end of the guide cylinder (51). The cavity of the piston and the cavity formed by piston 2 (532) and partition (511) are connected through flow channel (513). Two sets of intake valves (514) and exhaust valves (515) are provided on the guide cylinder (51). One set of intake valves (514) and exhaust valves (515) is located between piston 1 (522) and partition (511), and the other set of intake valves (514) and exhaust valves (515) is located between piston 2 (532) and the end of guide cylinder (51).

4. The energy-saving thermal insulation structure for building exterior walls according to claim 3, characterized in that, The diameter of the connecting column (521) is equal to the diameter of the guide column (512), and the cross-sectional area of ​​the cavity formed by the end of piston one (522) away from the partition plate (511) and the end of the guide cylinder (51) is equal to the cross-sectional area of ​​the cavity formed by piston two (532) and the partition plate (511).

5. The energy-saving thermal insulation structure for building exterior walls according to claim 1, characterized in that, The inner cavity of the curtain wall (2) is provided with two sets of heat-conducting plates (72), and the four sides of one set of heat-conducting plates (72) are in contact with the surfaces of four sets of guide shells (7).

6. The energy-saving thermal insulation structure for building exterior walls according to claim 1, characterized in that, The curtain wall (2) is equipped with four sets of reversing mechanisms (9), which are connected to four sets of guide shells (7) symmetrical on both sides. A temperature sensor (10) is installed in the cavity between the outer surface of the curtain wall (2) and the heat insulation cotton (1). The temperature sensor (10) is connected to the photovoltaic power source outside the curtain wall (2) and the processor inside the curtain wall (2).

7. The energy-saving thermal insulation structure for building exterior walls according to claim 6, characterized in that, The reversing mechanism (9) includes a drive unit (91), a rocker arm (92), and a push-pull plate (93). Four sets of mounting slots (23) are provided in the curtain wall (2). The drive unit (91) is installed in the mounting slot (23). The drive unit (91) is connected to the photovoltaic power source outside the curtain wall (2) and the processor inside the curtain wall (2). The output end of the drive unit (91) is provided with a rocker arm (92). An embedded slot (22) is provided in the area of ​​the inner cavity of the curtain wall (2) corresponding to the guide shell (7). The push-pull plate (93) extends movably through the mounting slot (23) into the embedded slot (22) and is fixedly connected to the guide shell (7). The part of the push-pull plate (93) located in the mounting slot (23) is provided with a through hole. The two ends of the rocker arm (92) pass through the through holes on the two sets of push-pull plates (93).

8. The energy-saving thermal insulation structure for building exterior walls according to claim 7, characterized in that, The inner cavity of the curtain wall (2) is equipped with two sets of sealing plates (8). The two sets of sealing plates (8) are located between two sets of U-shaped plates (6). A vacuum layer is formed between the two sets of sealing plates (8). The U-shaped plate (6) is fixedly connected to the sealing plate (8) on the side near the U-shaped plate (6) through the support plate (61). Four sets of symmetrical vertical grooves (24) are opened in the curtain wall (2). The vertical grooves (24) are connected to the mounting groove (23). The four sets of vertical grooves (24) located on the same plane are located at the four sides of the sealing plate (8). The thickness of the vertical groove (24) is less than the thickness of the sealing plate (8). A piston plate (94) is slidably installed in the vertical groove (24). The outer periphery of the piston plate (94) is in contact with the inner wall of the vertical groove (24). The part of the piston plate (94) located in the mounting groove (23) has a through hole. The two ends of the rocker rod (92) pass through the through holes on the two sets of piston plates (94).

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